6V0-21.25 VMware vDefend Security for VCF 5.x Administrator Exam Free Dumps

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To earn VCP-PCS Admin certification, you need to take and pass 6V0-21.25 exam. Learning Broadcom(VMware) 6V0-21.25 exam information is a required step. There are 75 Multiple Choice Multiple Selection, Multiple Choice questions in real Broadcom 6V0-21.25 exam, and you have 90 minutes to answer all the questions. The passing score is 70%. The exam price is $250. We provide the latest VMware vDefend Security for VCF 5.x Administrator 6V0-21.25 exam dumps, which can ensure you pass the test easily. Free VMware vDefend Security for VCF 5.x Administrator 6V0-21.25 exam dumps are available below.

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1. A security administrator is deploying VMware Cloud Foundation (VCF) and wants to understand how VMware vDefend secures internal data center traffic.

What is the primary architectural component of vDefend designed to inspect and control East-West (server-to-server) traffic?

vDefend Gateway Firewall

vDefend Security Intelligence

vDefend Distributed Firewall (DFW)

vDefend Network Detection and Response (NDR)

2. A network administrator is reviewing the traffic flow for a new application deployment. The goal is to ensure all traffic *between* the application server (VM-App-01) and the database server (VM-DB-01) is inspected for security threats.

Both VMs reside on the same ESXi host and the same logical segment.

Which VMware vDefend component is responsible for enforcing firewall policies on this specific traffic path?

The vDefend Gateway Firewall on the perimeter Edge node

The vDefend Distributed Firewall, running in the hypervisor kernel

The Security Services Platform (SSP)

The NSX Manager appliance

3. A junior security administrator is troubleshooting a new firewall policy. They have configured a rule in the vDefend Gateway Firewall (GFW) to block all SSH (TCP/22) traffic from a test VM (192.168.50.10) to a development server (192.168.50.20). Both VMs are on the same subnet and attached to the same L2 segment. The administrator observes that the SSH connection is still successful.

Why is the vDefend Gateway Firewall rule not blocking this traffic?

The Gateway Firewall policy has not been published.

The traffic is East-West, and the DFW default rule is "allow".

The Gateway Firewall only inspects traffic destined for the internet.

The test VM and development server are on a VLAN-backed segment.

4. A cloud architect is designing a security solution for a multi-tenant VMware Cloud Foundation environment. A key requirement is to provide granular, application-aware security policies for workloads, including containerized applications. Another requirement is to inspect traffic for known vulnerability exploits *before* it reaches the workload, without causing network bottlenecks.

Which vDefend components should the architect use to meet these specific requirements? (Choose 2.)

vDefend Gateway Firewall

vDefend Distributed Firewall

Distributed IDS/IPS

Network Sandboxing

vDefend Security Intelligence

5. A security administrator is troubleshooting why a vDefend Gateway Firewall (GFW) rule is not blocking traffic as expected. The traffic is confirmed to be routing through the correct Tier-1 Gateway where the GFW policy is applied. The administrator suspects the issue is related to rule order and policy categories.

When the system evaluates a packet against the GFW, in which order are the rule categories processed?

Emergency > Pre Rules > System > Gateway Specific > Default

System > Emergency > Pre Rules > Gateway Specific > Default

Emergency > System > Pre Rules > Gateway Specific > Default

Pre Rules > Emergency > System > Default > Gateway Specific

6. Identify anomalous network behavior, such as a compromised host scanning the network.

Which vDefend components are required to meet all these requirements? (Select all that apply.)

vDefend Distributed Firewall

vDefend Gateway Firewall

Distributed IDS/IPS

Network Sandboxing

Network Traffic Analysis (NTA)

7. What is the primary function of Network Traffic Analysis (NTA) within the VMware vDefend platform?

To block known malware signatures at the hypervisor level.

To enforce user identity-based access control rules for applications.

To create a baseline of normal network behavior and detect anomalous activity that may indicate a threat.

To provide a centralized console for managing firewall policies across multiple VCF instances.

8. A SOC analyst is reviewing alerts from VMware vDefend and notices an alert for a "Protocol Anomaly."

Which of the following would be an example of this type of anomaly detected by NTA?

A server suddenly sending a large volume of data to an external IP address.

A user account attempting to log in from a new geographic location.

The use of DNS for transferring data, also known as DNS tunneling.

A known malware signature detected in a network packet.

9. A security administrator is investigating an alert from the vDefend NTA/NDR system. The alert indicates that a web server (10.10.1.50) is exhibiting behavior consistent with "Lateral Movement."

Based on this information, what is the most likely threat occurring?

A denial-of-service (DoS) attack originating from the web server.

An attacker, having compromised the web server, is attempting to discover and move to other servers.

A misconfigured firewall rule is blocking legitimate RDP traffic.

The web server is exfiltrating data to an external command-and-control server.

10. A SOC analyst is reviewing an NTA event in the VMware vDefend console. The system has correlated several low-level anomalies into a single high-priority campaign. The analyst needs to understand what this campaign represents in the context of the MITRE ATT&CK framework.

According to the documentation, which two of the following MITRE ATT&CK tactics can vDefend NTA/NDR help to detect? (Choose 2.)

Initial Access

Command and Control

Privilege Escalation

Credential Access

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11. A security administrator is analyzing vDefend NTA reports and observes a significant anomaly. A server in the database segment, which normally only communicates with the application tier on specific SQL ports, has been observed sending a large volume of data using DNS queries to multiple, unknown external domains.

Anomaly Report:

- Event Type: Traffic Anomaly

- Source: 10.50.30.10 (sql-prod-01)

- Destination: Multiple (e.g., xf83j.baddomain.com, gv2a9.baddomain.com)

- Protocol: DNS (Port 53)

- Details: High volume of DNS requests to algorithmically generated domains.

- Baseline: Host 10.50.30.10 typically sends < 1KB of DNS data per day.

- Current: 150MB of DNS data sent in 1 hour.

What type of threat does this NTA finding most likely indicate?

A Distributed Denial of Service (DDoS) attack against the DNS server.

A misconfigured DNS security profile on the distributed firewall.

Data exfiltration using DNS tunneling.

An IDS/IPS signature that needs to be updated.

12. A cloud architect is designing a zero-trust security model for a new VCF environment. A key goal is to gain deep visibility into all East-West traffic flows to build an accurate micro-segmentation policy. After the policy is built, the architect also wants to detect any anomalous behavior that deviates from this established baseline, such as potential lateral movement.

Which vDefend components should be deployed to meet all these requirements? (Select all that apply.)

vDefend Security Intelligence

vDefend Distributed Firewall

Network Traffic Analysis (NTA)

vDefend Gateway Firewall

Distributed IDS/IPS

13. A system administrator is creating a new dynamic group in NSX Manager to be used in a vDefend Distributed Firewall policy. The goal is to automatically include all virtual machines that have a VMware tag of "PCI-DSS" applied to them, regardless of their network or name.

Which 'Expression' should the administrator configure to create this group?

`key`: "Name", `value`: "PCI-DSS"

`key`: "Tag", `value`: "PCI-DSS"

`key`: "OSName", `value`: "PCI-DSS"

`key`: "IPAddress", `value`: "PCI-DSS"

14. A system administrator is troubleshooting a new vDefend Distributed Firewall policy. A rule in the 'Application' category, "Block-SSH", is intended to block SSH (TCP/22) to the 'DB-Servers' group. However, administrators find they can still SSH to the database servers.

Upon review, they find the following policy configuration:

Category: Infrastructure

Policy: P-Infra

Rule: 1001

Source: jump-box-group

Destination: ANY

Service: SSH

Action: Allow

Applied To: DFW

Category: Application

Policy: P-App-DB

Rule: 2001

Source: ANY

Destination: DB-Servers

Service: SSH

Action: Drop

Applied To: DB-Servers

What is the most likely reason the "Block-SSH" rule (2001) is failing?

The 'Applied To' field in rule 2001 should be set to "DFW".

The 'Infrastructure' category is processed before the 'Application' category.

The 'Source' in rule 2001 should be 'jump-box-group', not 'ANY'.

The 'P-App-DB' policy is stateful, and the TCP session is already established.

15. A security administrator is responding to a newly discovered zero-day vulnerability. The administrator needs to immediately block all attempts to exploit this vulnerability across the entire data center, ensuring this new block rule is evaluated before any other existing firewall rules.

Which of the following actions must the administrator take to create a vDefend Distributed Firewall policy that meets this requirement? (Select all that apply.)

Place the new block rule in the 'Emergency' category.

Set the 'Applied To' field of the rule to 'DFW'.

Set the rule 'Action' to 'Reject'.

Create a new 'Context Profile' for the zero-day threat.

Place the new block rule in the 'Infrastructure' category.

16. A network administrator is configuring firewall rules on a Tier-0 Gateway that has been configured in an Active/Active high availability mode. The administrator notes that some security features are not available for configuration.

Which two vDefend Gateway Firewall features are not supported on an Active/Active Edge configuration as of vDefend 9.0? (Choose 2.)

Stateful L3 rules

NAT

Gateway Firewall (itself)

Distributed Firewall

Identity Firewall

17. An IT Operations team is tasked with automating the creation of 50 new firewall policies for different applications. They plan to use the NSX Policy API. To ensure the rules are created in the correct order within each policy, they must specify the `sequence_number` for each rule.

What happens if they create a new rule via the API and do not specify a `sequence_number` in the payload?

The API call will fail with a "Missing required field" error.

The rule will be assigned a `sequence_number` of 0.

The rule will automatically be placed at the bottom of the rule list in that policy.

The NSX Manager will automatically assign the next available integer as the `sequence_number`.

18. What is the primary role of the VMware vDefend Network Sandbox in the context of malware prevention?

To store and manage firewall rule configurations.

To perform real-time, signature-based intrusion detection on network traffic.

To execute and analyze unknown or suspicious files in an isolated environment to identify zero-day threats.

To provide a dashboard for visualizing network traffic flows between workloads.

19. An IT Manager is reviewing a security alert from the vDefend console. The alert indicates that a "Malicious File" was "Blocked" on a user's virtual desktop.

Time: 14:32:01

VM: VDI-User-105

File: "quarterly_bonus_report.exe"

Event: Malicious File Write Blocked

Source: HTTPS (Encrypted)

Details: File hash matched known malware signature.

How was vDefend able to inspect this file, even though it was downloaded over an encrypted HTTPS channel?

It used TLS Inspection on the Gateway Firewall to decrypt the traffic.

It used Network Traffic Analysis (NTA) to infer the file's content based on traffic patterns.

It used Guest Introspection to intercept the file as it was being written to the VM's disk, after decryption by the O

It used a vDefend browser plugin to scan the file before the download was initiated.

20. A Security Administrator is configuring a new Malware Prevention profile for a VDI environment. The primary goal is to provide a strong security posture against zero-day threats, but a secondary goal is to minimize the performance impact on the user's desktop experience.

Which two settings should the administrator configure in the profile to achieve this balance? (Choose 2.)

Set 'Unknown' file status action to 'Cloud File Analysis'.

Set 'Malicious' file status action to 'Block'.

Enable 'Block file write until cloud analysis is complete'.

Set 'Unknown' file status action to 'Allow'.

Set 'Suspicious' file status action to 'Allow'.

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21. A SOC Analyst receives a high-priority alert from the vDefend Security Overview dashboard. The alert details a ransomware campaign detected in progress, referencing multiple file-write-denied events and lateral movement attempts.

Which vDefend Advanced Threat Prevention features are collaborating to detect and stop this attack? (Select all that apply.)

vDefend Security Intelligence

vDefend Distributed Firewall

Distributed IDS/IPS

Malware Prevention

Network Traffic Analysis (NTA)

22. A Cloud Architect is designing a security policy for a new DMZ in a VCF environment. The design includes a Tier-1 Gateway acting as the perimeter firewall for web servers. The architect's primary concern is stopping malware, including zero-day threats, from being uploaded by external users to the web servers.

Which vDefend Advanced Threat Prevention features should be enabled on the Tier-1 Gateway to provide the most comprehensive protection against this specific threat? (Select all that apply.)

Gateway IDS/IPS

Gateway Malware Prevention

TLS Inspection

Network Traffic Analysis (NTA)

Distributed Firewall (DFW)

23. A network administrator is designing a security policy for a new VMware Cloud Foundation (VCF) deployment.

What is the primary role of the VMware vDefend Gateway Firewall?

To inspect and filter East-West traffic between virtual machines on the same host.

To provide application discovery and recommend micro-segmentation policies.

To secure North-South traffic entering and exiting the private cloud at the network edge.

To analyze network flows for behavioral anomalies and detect lateral movement.

24. A security administrator is configuring a new Tier-1 Gateway on an NSX Edge node and wants to enable URL filtering to block access to social media websites.

Which other feature must be enabled first for URL filtering to function?

Distributed IDS/IPS

Malicious IP Filtering

URL Database

Guest Introspection

25. An administrator is troubleshooting a vDefend Gateway Firewall rule that is intended to block traffic from a specific country. The rule is configured correctly using a system-defined GeoIP group for that country, but traffic from known IP addresses in that country is still being allowed.

Policy: Geo-Block-Policy (Category: Pre Rules)

Rule: 1050

Source: GeoIP-Country-X

Destination: ANY

Service: ANY

Action: DROP

Applied To: [Tier-1 Gateway]

Policy: Default (Category: Default)

Rule: default

Source: ANY

Destination: ANY

Service: ANY

Action: ALLOW

The administrator confirms the "VMware vDefend Firewall" license is applied.

What is a potential reason the rule is not blocking the traffic?

The administrator has not enabled GeoIP Monitoring on the gateway.

The default rule is set to ALLOW, which overrides the DROP rule.

The administrator forgot to apply a "Block Malicious IPs" profile to the rule.

The administrator must create a custom GeoIP group; system-defined groups cannot be used in rules.

26. A security architect needs to configure vDefend Gateway Firewall to inspect encrypted HTTPS traffic destined for a public-facing web application. The goal is to apply Layer 7 Application-ID rules and IDS/IPS inspection to this traffic.

Which vDefend features must be configured on the Tier-1 Gateway to meet this requirement? (Choose 2.)

TLS Inspection

FQDN Analysis

Security Intelligence

A stateful firewall rule with an Application ID context profile

Distributed Firewall

27. A VPC Admin is responsible for a new project in VCF that contains several VPCs. The administrator needs to implement a baseline security policy for all North-South traffic for all VPCs within this project.

Which vDefend components must be configured to apply these stateful firewall rules? (Select all that apply.)

The Gateway Firewall Service must be enabled in the VPC Security Profile.

A vDefend Firewall license must be installed.

A Distributed Firewall policy must be created in the 'Infrastructure' category.

A Gateway Firewall policy must be applied to the 'default' domain.

Guest Introspection must be installed on all workloads within the VP

28. An Auditor is reviewing the gateway firewall configuration for a production Tier-0 Gateway. They need to verify which rules are being hit most often to ensure that high-volume traffic is being processed by the intended 'allow' rules and not by the final 'deny' rule.

How can the Auditor find this information in the NSX Manager UI?

By running a packet capture (`pcap`) on the Tier-0 Gateway uplinks.

By checking the `firewallpkt.log` file on the NSX Edge node.

By viewing the "Top-N" dashboard in vDefend Security Intelligence.

By navigating to `Security > Gateway Firewall`, selecting the gateway, and clicking the graph icon next to each rule.

29. A vDefend administrator has made several changes to a Distributed Firewall policy and wants to test them before making them active.

What feature allows the administrator to save these changes without applying them to the data plane?

Policy Versioning

Firewall Drafts

Configuration Snapshot

Security Intelligence Sandbox

30. A VPC Admin has just created a new Distributed Firewall rule inside a policy within their project.

Policy: "VPC-Web-Tier-Policy"

Rule: "Allow-HTTPS-External"

Source: "Any"

Destination: "grp-vpc-web-servers"

Service: "HTTPS"

Action: "Allow"

Applied To: "grp-vpc-web-servers"

Immediately after creating the rule, the administrator tests connectivity from an external IP, but the connection is blocked.

What is the most likely reason the rule is not working?

The administrator has not clicked "Publish".

The 'Applied To' field must be set to 'DFW'.

The 'Source' cannot be 'Any' in a VPC policy.

The rule must be placed in the 'Emergency' category.

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31. An administrator is troubleshooting a Distributed Firewall policy and sees a "Failed" status in the 'Action' column next to the policy name.

What is the first action the administrator should take to identify the cause of the failure?

Reboot the NSX Manager cluster.

Click the "Failed" status text to view detailed realization status per transport node.

Manually re-install VMware Tools on all virtual machines in the 'Application' group.

Delete and recreate the policy from a saved draft.

32. A security administrator needs to configure a firewall rule that allows employees to access a benefits portal, but only during standard business hours (Monday-Friday, 9:00 AM to 5:00 PM).

Which two components must be configured in vDefend to achieve this specific requirement? (Choose 2.)

A Time-Based Firewall Policy

A Network Traffic Analysis (NTA) profile

A Gateway Firewall rule with an 'L7 Access Profile'

A Network Time Protocol (NTP) service on all transport nodes

An Identity Firewall (IDFW) rule

33. An administrator is troubleshooting a policy realization failure for a Distributed Firewall (DFW) rule in the "Application" category. The rule fails to apply to any workloads. After clicking the "Failed" status, the administrator sees a "Deleted_Object" error message in the rule's `Source` field.

This policy was recently imported from another VCF environment.

What is the most likely cause of this error?

The "Application" category does not support the services defined in the rule.

The group object specified in the `Source` field does not exist on this NSX Manager.

The administrator does not have 'Enterprise Admin' permissions.

The firewall policy has been configured as 'stateless'.

34. An administrator is preparing to deploy vDefend security for a new Virtual Private Cloud (VPC) in a VCF 9.0 environment. This VPC will host a critical production application that requires both East-West micro-segmentation and North-South stateful firewalling.

Which licenses must be assigned to the environment to enable *both* the vDefend Distributed Firewall (DFW) for East-West rules and *stateful* vDefend Gateway Firewall (GFW) for North-South rules for this VPC? (Select all that apply.)

A valid VMware Cloud Foundation (VCF) license

A VMware vDefend Firewall license (or vDefend Firewall with Advanced Threat Prevention)

A vSphere 9.0 Enterprise Plus license

A Security Services Platform (SSP) license

An NSX Advanced Load Balancer (ALB) license

35. Which statement accurately describes the fundamental architectural difference between the VMware vDefend Distributed Firewall (DFW) and the vDefend Gateway Firewall (GFW)?

The DFW is a software-only firewall, while the GFW requires dedicated hardware appliances.

The DFW is integrated into the hypervisor to inspect East-West traffic, while the GFW is an Edge-based service for North-South traffic.

The DFW only supports stateless rules (L2-L4), while the GFW supports stateful L7 application rules.

The DFW is managed by vCenter Server, while the GFW is managed by the NSX Global Manager.

36. A VPC Admin wants to implement a micro-segmentation policy to block all communication between two specific virtual machines, `vm-web-01` and `vm-app-01`, which both reside on the same ESXi host and are connected to the same VPC subnet.

Which vDefend component will enforce this blocking policy?

The Tier-0 Gateway Firewall

The vDefend Security Intelligence engine

The Security Services Platform (SSP)

The vDefend Distributed Firewall (DFW)

37. A security administrator has configured a new vDefend Distributed Firewall rule in the 'Application' category to block RDP access to a group of servers. However, a test shows that RDP access is still being allowed.

The administrator investigates and finds the following policy configuration:

Category: Infrastructure

Policy: P-Infra-Allow

Rule: 1010

Name: Allow-Admin-Access

Source: grp-admin-hosts

Destination: grp-all-servers

Service: RDP

Action: Allow

Applied To: DFW

Category: Application

Policy: P-App-Secure

Rule: 2050

Name: Block-RDP-Test

Source: ANY

Destination: grp-test-servers

Service: RDP

Action: Drop

Applied To: DFW

Why is the RDP traffic still being allowed to the 'grp-test-servers'?

The 'Application' category cannot override rules in the 'Infrastructure' category.

The 'P-App-Secure' policy is not stateful.

The 'Applied To' field in Rule 2050 should be set to 'grp-test-servers'.

The 'Block-RDP-Test' rule needs a lower sequence number than the 'Allow-Admin-Access' rule.

38. Configure DFW, GFW, and IDS/IPS policies.

2, 1, 3, 4, 5, 6

1, 2, 5, 3, 4, 6

2, 3, 1, 4, 5, 6

1, 5, 2, 3, 4, 6

39. A security architect is designing a Zero Trust micro-segmentation strategy using vDefend Security Intelligence. The architect has started a flow discovery session for a critical application.

What types of information does vDefend Security Intelligence collect to build its application topology map and recommend firewall rules? (Select all that apply.)

The process that generated the network flow.

The user that initiated the process.

The contents of files being written to disk.

The application protocol being used (e.g., LDAP).

The specific vulnerability signature (CVE) being exploited.

40. A security architect is explaining the vDefend architecture to a new administrator. The architect needs to clarify which components provide which specific security functions.

Which vDefend component uses a distributed analytics engine to analyze workload and network context to develop and recommend micro-segmentation policies?

vDefend Advanced Threat Prevention (ATP)

vDefend Gateway Firewall

vDefend Security Intelligence

vDefend Distributed Firewall

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41. What is the primary purpose of the VMware vDefend Identity Firewall (IDFW)?

To inspect network packets for known attack signatures.

To provide firewall rules based on Layer 7 application signatures.

To create firewall rules based on Active Directory user or group membership.

To analyze network flows and recommend new micro-segmentation policies.

42. A system administrator is deploying vDefend Identity Firewall (IDFW) for a new Virtual Desktop Infrastructure (VDI) pool. The administrator needs to ensure that user login events from the VDI virtual machines are captured by the NSX Manager.

Which VM-level component is required for IDFW to detect user logins via Guest Introspection?

The Security Services Platform (SSP) agent

The vDefend Network Sandbox driver

The VMware Tools package with the "NSX File Introspection Driver" and "NSX Network Introspection Driver" components installed

The vDefend Gateway Firewall service

43. An administrator has configured an Identity Firewall (IDFW) rule to allow the 'Finance-Users' Active Directory group to access the 'Accounting-Server' group. A user in the 'Finance-Users' group reports they cannot access the server. The administrator has verified the user is in the correct AD group and that Guest Introspection is running.

Upon investigation, the administrator checks the Active Directory domain configuration in NSX Manager:

Domain: corp.local

Base Distinguished Name: DC=corp,DC=local

...

Organization Units To Sync:

- OU=Users,DC=corp,DC=local

- OU=Servers,DC=corp,DC=local

- OU=Groups,DC=corp,DC=local

The user object is located in `OU=Finance,OU=Users,DC=corp,DC=local`.

The 'Finance-Users' group object is located in `OU=Groups,DC=corp,DC=local`.

Why is the IDFW rule not being applied correctly?

The Base Distinguished Name is incorrect.

The 'Finance-Users' group must be in the same OU as the user.

The user's Organizational Unit (OU=Finance,OU=Users) is not included in the "Organization Units To Sync" list.

The administrator must perform a "Sync All" operation to apply the changes.

44. A company is deploying vDefend Identity Firewall (IDFW) to secure a farm of Remote Desktop Session Hosts (RDSH) servers. Multiple users will be logged into the same server simultaneously, and each user must have different network access permissions based on their Active Directory group.

Which methods can vDefend IDFW use to identify and apply rules for individual users in this multi-user RDSH environment? (Choose 2.)

Monitoring Active Directory event logs via Event Log Scraping (ELS).

Installing the Guest Introspection (GI) Network Introspection driver on the RDSH servers.

Configuring a Gateway Firewall policy on the Tier-1 gateway.

Using FQDN analysis to map user sessions to domain names.

Installing the Guest Introspection (GI) File Introspection driver on the RDSH servers.

45. A security administrator is troubleshooting an Identity Firewall (IDFW) rule based on an Active Directory (AD) group. The rule is not being enforced for a user who was recently added to that AD group. The administrator has confirmed the user is logged into a VDI machine that has the correct Guest Introspection drivers installed and is on a cluster where IDFW is active. The AD domain sync is also configured correctly.

The administrator reviews the logs and policy:

AD Domain: corp.local

Group: "AD-Group-Contractors" (synced from OU=Groups,DC=corp,DC=local)

User: "contractor1" (located in OU=Users,DC=corp,DC=local)

DFW Rule 5010:

Source: AD-Group-Contractors

Destination: ANY

Service: ANY

Action: Drop

DFW Default Rule:

Source: ANY

Destination: ANY

Service: ANY

Action: Allow

The administrator notes the user 'contractor1' was added to the 'AD-Group-Contractors' group 10 minutes ago, while the user was already logged into their VDI session. The user is still able to access all network resources.

What is the most likely cause for the 'Drop' rule not being applied?

The user must log out of their VDI session and log back in.

The 'AD-Group-Contractors' group must be in the 'Applied To' field of Rule 5010.

The default rule action must be set to 'Drop' for IDFW to function.

The administrator must manually trigger a 'Sync Delta' from the NSX Manager's Active Directory configuration.

46. A cloud architect is designing a security policy that leverages vDefend's Context-Aware firewall capabilities. The goal is to create a Distributed Firewall rule that allows web servers to communicate with application servers, but only using the 'APP_HTTP' application-level protocol, regardless of the port used.

Which components must be configured in the firewall rule to achieve this specific L7-aware filtering? (Select all that apply.)

The `Service` field set to `Any`.

The `Action` field set to `Allow`.

A `Context Profile` configured with the `APP_HTTP` Application I

The `Applied To` field set to the application server group.

An `IDS/IPS Profile` set to 'Detect'.

47. A financial institution is using VMware vDefend to meet PCI-DSS requirements. An auditor is verifying that all traffic entering the Cardholder Data Environment (CDE), which is protected by a Tier-1 Gateway, is inspected for known exploits.

Which vDefend component must be enabled on the Tier-1 Gateway to meet this specific compliance mandate?

Gateway IDS/IPS

Network Traffic Analysis (NTA)

Distributed Firewall

Malicious IP Filtering

48. A security administrator is configuring a vDefend Gateway Firewall policy to control outbound web access for a set of workloads. The goal is to block users from accessing websites categorized as "Gambling" and "Adult."

Which two components must be configured on the Tier-1 Gateway to achieve this? (Choose 2.)

A Gateway Firewall rule with an L7 Access Profile.

A Distributed Firewall rule with a Context Profile.

TLS Inspection.

A Network Traffic Analysis (NTA) profile.

The URL Database must be enabled on the Edge Cluster.

49. A network administrator is configuring a vDefend Gateway Firewall on an NSX Edge node. They need to ensure that if a user attempts to connect to a blocked website over HTTPS, the user's browser receives a notification page instead of a simple connection timeout.

What must be configured for the Gateway Firewall to present this custom response page for HTTPS traffic?

A Gateway Firewall rule with action 'Reject'.

TLS Inspection.

An L7 Access Profile with action 'Reject with Response'.

A Distributed Firewall rule with action 'Reject'.

50. A security administrator is configuring a new vDefend Gateway Firewall rule on a Tier-0 Gateway to block traffic from a specific country known for malicious activity. The administrator has already enabled GeoIP Auto Update.

What is the correct procedure to implement this block?

Create a new Gateway Firewall rule, set the Source to the 'Malicious IP' group, and set the Action to 'Drop'.

Create a new Gateway Firewall rule, set the Source to the pre-created GeoIP group for that country, and set the Action to 'Drop'.

Create a new Distributed Firewall rule, set the Source to the pre-created GeoIP group for that country, and set the Action to 'Drop'.

Create a new L7 Access Profile, add the country as an attribute, and apply it to a Gateway Firewall rule.

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51. A security operator is investigating a network connectivity issue using the NSX Edge CLI. They suspect that traffic is being dropped by the vDefend Gateway Firewall. The operator needs to see a log of all packets being processed by the firewall, including those that are dropped and the reason for the drop.

Which log file on the NSX Edge node should the operator monitor?

`/var/log/dfwpktlogs.log`

`/var/log/syslog`

`/var/log/firewallpkt.log`

`/var/log/vmware/guestIntrospectionHostAgent.log`

52. A cloud architect is deciding which vDefend features to license and deploy on a new NSX Edge cluster that will serve as the internet perimeter for several tenants. The requirements are to provide stateful L3/L4 filtering, inspect outbound HTTPS traffic for known exploits, and block access to malicious domains.

Which licenses and features must be enabled on the Edge nodes to meet all requirements? (Select all that apply.)

VMware vDefend Firewall

vDefend Advanced Threat Prevention

TLS Inspection

Network Traffic Analysis (NTA)

VMware vDefend Firewall with Advanced Threat Prevention

53. A cloud architect is explaining the benefits of the vDefend Distributed Firewall (DFW) architecture for securing East-West traffic.

What is a key advantage of this distributed architecture compared to traditional perimeter firewalls?

It consolidates all traffic inspection onto a single, high-performance physical appliance.

It provides elastic throughput that scales automatically as new workloads are added to the hosts.

It requires all East-West traffic to be hair-pinned to a central virtual appliance for inspection.

It only inspects traffic at the edge of the data center, simplifying policy management.

54. A developer is deploying a new application in a VCF environment. The application has two VMs: `app-vm-1` and `app-vm-2`. Both VMs are on the same logical segment and reside on the same ESXi host.

A firewall rule is created in the vDefend Distributed Firewall to block all traffic between `app-vm-1` and `app-vm-2`.

Where is this security policy enforced?

On the Tier-1 Gateway associated with the segment.

On the NSX Manager.

On the virtual switch (N-VDS) within the ESXi host.

On the physical top-of-rack switch.

55. 168.1.10)

Destination: ANY

Service: HTTPS

Action: Allow

Applied To: T1-Gateway-01

Why is the traffic being allowed?

The DFW 'Application' category rule is processed after the GFW 'Pre Rules' category.

The GFW 'Pre Rules' category has a higher priority than the DFW 'Application' category.

The DFW policy only applies to East-West traffic, not to traffic going to an external I

The 'Applied To' field in the DFW rule is misconfigured.

56. A security administrator wants to implement Network Traffic Analysis (NTA) to detect anomalous behavior within their VCF environment. The organization wants to do this without having to configure SPAN ports or network taps, and without hair-pinning traffic to a central appliance.

Which vDefend architectural feature enables this capability?

vDefend Security Intelligence

The vDefend Gateway Firewall's L7 inspection engine

The "TAP-less NTA" deployment option using the Distributed Firewall

The Security Services Platform (SSP) virtual appliance

57. A system administrator is reviewing the firewall policy table and is confused by the different categories. They have a new rule to allow backup traffic (TCP 2500) from all application servers (`grp-app-servers`) to the central backup server (`10.0.0.50`). The administrator wants to ensure this rule is processed after any emergency rules but before any application-specific rules.

vDefend Distributed Firewall Categories:

[ Ethernet ] [ Emergency ] [ Infrastructure ] [ Environment ] [ Application ]

In which category should this backup rule be placed?

Ethernet

Emergency

Infrastructure

Application

58. A cloud architect is designing a security solution for a VCF environment that hosts both traditional VMs and modern container-based applications using VMware Tanzu. The security team requires a single solution that can provide granular, context-based security enforcement for both types of workloads to enable zero-trust and protect against lateral movement.

Which vDefend components should the architect include in the design to meet these requirements? (Select all that apply.)

vDefend Distributed Firewall

vDefend Gateway Firewall

vDefend Security Intelligence

Antrea Network Policies

Guest Introspection

59. What is the primary function of the VMware vDefend Distributed Intrusion Detection and Prevention System (IDS/IPS)?

To analyze network flow data to build a baseline of normal behavior.

To inspect East-West network traffic at the hypervisor level for known threat signatures.

To scan files on a guest VM's disk for malware using Guest Introspection.

To provide a centralized management console for all vDefend security features.

60. A developer is deploying a new web application and wants to ensure it is protected against known vulnerabilities. A security administrator has enabled vDefend Distributed IDS/IPS on the cluster.

Where is the IDS/IPS inspection engine architecturally located to inspect traffic destined for the developer's application VM?

On the NSX Manager appliance

On the Security Services Platform (SSP)

On the Tier-1 Gateway (Edge node)

On the ESXi host where the VM is running

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61. A developer's application deployment is failing. The application VM (10.1.1.5) cannot connect to its database VM (10.1.1.6).

A security administrator inspects the Distributed Firewall rules and finds the following configuration:

Policy: "App-Policy"

Rule: 2010

Name: "App-to-DB"

Source: grp-app (contains 10.1.1.5)

Destination: grp-db (contains 10.1.1.6)

Service: MS-SQL

Action: ALLOW

IDS/IPS Profile:

"Strict-DB-Profile"

IDS/IPS Action: Detect &

Prevent

Applied To: grp-app, grp-db

The administrator checks the IDS/IPS event logs and sees entries indicating that traffic from `10.1.1.5` to `10.1.1.6` on TCP port 1433 is being blocked by a high-severity signature. The developer states this traffic is legitimate for the application.

What is the most likely cause of the problem?

The firewall rule `Action` is set to `ALLOW`, which conflicts with the `IDS/IPS Action` of `Detect & Prevent`.

The 'Strict-DB-Profile' is generating a false-positive detection and, because the action is 'Detect & Prevent', it is blocking the legitimate traffic.

The DFW default rule is set to 'Drop', which is blocking the return traffic from the database.

The `Applied To` field is misconfigured and should be set to `DFW`.

62. A security administrator is creating an IDS/IPS profile named "Web-Profile" to be applied to a group of web servers. The goal is to optimize performance by only checking for relevant threats. The web servers are known to be vulnerable to several critical remote code execution (RCE) exploits.

Which two settings would be most effective for creating a precise and optimized IDS/IPS Profile for this purpose? (Choose 2.)

Set the profile's default action to `Prevent`.

Filter signatures based on Attack Type, such as `web-application-attack`.

Filter signatures based on a minimum CVSS score of `8.0` or higher.

Add all available signature sets to the profile.

Set the `Applied To` field of the profile to the web server group.

63. A developer is complaining that their new application build is being blocked. A vDefend administrator investigates and sees IDS/IPS "Detect & Prevent" events for the application's traffic. The developer confirms this is a known false positive and provides a new build that should fix the issue, but they need to test it first.

The administrator wants to temporarily stop blocking this specific traffic for testing, but must not disable IDS/IPS for the entire environment.

Which actions could the administrator take to meet this requirement? (Select all that apply.)

Set the `IDS/IPS Action` on the specific DFW rule from `Detect & Prevent` to `Detect`.

Disable the Distributed Firewall service on the cluster.

Add the developer's test VMs to the DFW Exclusion List.

Edit the IDS/IPS Profile and disable the specific signature that is firing.

Create a new DFW rule in the 'Emergency' category with a `Source` of the test VMs and an `Action` of `Allow`.

64. A security architect is designing a solution to meet PCI-DSS compliance, which mandates the use of IDS/IPS to protect the cardholder data environment (CDE). The architect is using vDefend Distributed IDS/IPS.

To reduce the computational overhead on the ESXi hosts and minimize false positives, the architect applies a "virtual patching" strategy.

Which of the following describes this strategy?

Enabling IDS/IPS inspection only on the Tier-0 Gateway for North-South traffic.

Using vDefend Security Intelligence to create a baseline, and only alerting on anomalous behavior (NTA).

Creating a broad IDS/IPS profile with all "Critical" signatures enabled and applying it to all workloads.

Creating a custom IDS/IPS profile with only the specific signatures relevant to the applications and operating systems running in the CDE, and applying it to the CDE group.

65. An administrator is implementing a zero-trust policy for a new application.

What is the primary function of setting the 'Applied To' field in a vDefend Distributed Firewall (DFW) policy?

To define the source workloads that are allowed to send traffic.

To define the destination workloads that are allowed to receive traffic.

To specify which workloads will enforce (process) the rules within that policy.

To link the policy to a vDefend Gateway Firewall for North-South inspection.

66. A developer is configuring firewall rules for a new two-tier application. The web servers (in `grp-web`) need to communicate with the application servers (in `grp-app`) over port 8080. The security policy dictates a default-deny stance.

Which vDefend Distributed Firewall rule correctly and most securely implements this requirement?

Source: grp-web Destination: grp-app Service: TCP-8080 Action: Allow Applied To: DFW

Source: grp-web Destination: grp-app Service: TCP-8080 Action: Allow Applied To: grp-web, grp-app

Source: ANY Destination: grp-app Service: TCP-8080 Action: Allow Applied To: grp-app

Source: grp-web Destination: ANY Service: TCP-8080 Action: Allow Applied To: grp-web

67. A security administrator is using the vDefend Security Intelligence "Discover & Take Action" tool to analyze traffic for a new application. The tool shows a flow from a VM in `grp-web` to a VM in `grp-db` over TCP port 3306, which is unexpected. The administrator wants to confirm this is not a false positive from the tool.

What is the most effective next step to troubleshoot and validate this specific network flow?

Use the `ping` command from the web VM to the database V

Check the `firewallpkt.log` on the NSX Edge node.

Use the vDefend `Traceflow` tool to simulate a packet from the web VM to the database VM on TCP port 3306.

Create a new "Block" rule for this traffic and see if the application owner complains.

68. An organization is securing a legacy application that uses insecure protocols, such as Telnet. The security team cannot patch or reconfigure the application, but they must prevent these protocols from being used by any other workloads in the environment.

Which vDefend Distributed Firewall policy strategy best achieves this goal using a zero-trust model? (Choose 2.)

Create a high-priority rule in the 'Infrastructure' category that allows Telnet only between the specific legacy VMs.

Create a 'Context Profile' that identifies the Telnet Application ID (APP_TELNET).

Create a low-priority rule in the 'Application' category that blocks Telnet for all workloads.

Create a default 'Drop' rule at the bottom of the 'Application' category.

Create a 'Guest Introspection' rule to block the Telnet process from executing.

69. A security administrator is troubleshooting a DFW policy. A rule designed to block RDP access from the `grp-contractors` group to the `grp-prod-servers` group is not working. The administrator checks the ESXi host log `dfwpktlogs.log` and finds the following entry for the denied traffic:

2025-11-04T12:00:01.123Z esx-01a dfwpktlogs: 32a8c4f0 INET match PASS 1005 IN 60 TCP 192.168.10.100/51234->192.168.20.20/3389 S

The administrator confirms the following:

- Rule 1005 is the default `any-any-allow` rule in the 'Application' category.

- The blocking rule (ID 2010) is in the 'Environment' category and is configured as `Source: grp-contractors`, `Destination: grp-prod-servers`, `Service: RDP`, `Action: Drop`.

- The 'Applied To' for rule 2010 is set to `grp-prod-servers`.

- The source VM (192.168.10.100) is confirmed to be in `grp-contractors`.

Why is the traffic being allowed?

The 'Environment' category is processed after the 'Application' category.

The `Applied To` field for rule 2010 is set to the destination, but it must also include the source.

The default 'allow' rule (1005) has a lower rule ID than the block rule (2010).

The log message shows the traffic was 'PASS', so the 'Drop' action failed.

70. A cloud architect is designing a hybrid application deployment that includes both traditional Virtual Machines and Kubernetes Pods running on a VCF with Tanzu environment. A primary security requirement is to enforce a consistent micro-segmentation policy that controls traffic between the VMs and the Pods, as well as traffic between Pods.

Which vDefend components and technologies are required to achieve this unified security posture? (Select all that apply.)

vDefend Distributed Firewall

vDefend Gateway Firewall

Antrea Network Policies

vDefend Security Intelligence

Network Traffic Analysis (NTA)

6V0-21.25 VMware vDefend Security for VCF 5.x Administrator Exam Free Dumps

6V0-21.25 VMware vDefend Security for VCF 5.x Administrator Exam Free Dumps

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