250-608 Tanzu Greenplum v7 Technical Specialist Exam Preparation Resources

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250-608 exam is one for becoming Tanzu Greenplum v7 Technical Specialist. If you decide to become specialist, passing 250-608 exam is a required step. There are 75 questions in real Broadcom 250-608 exam, and you have 90 minutes to answer all the questions. The required passing score is 70%. The exam price is $250. We provide the latest Broadcome 250-608 exam preparation resources, which are useful for you to take the test. Free Tanzu Greenplum v7 Technical Specialist 250-608 exam preparation resources are available below.

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1. The ___ utility is used to safely shut down the entire Greenplum Database cluster.

Response:

gpdown

gpstop

gpclose

gpkill

2. How can VACUUM ANALYZE help improve query performance in Greenplum?

By removing all user data

By compressing indexes for faster access

By updating table statistics used by the optimizer

By converting heap tables to append-only tables

3. Which extension must be enabled in Greenplum to use spatial functions such as ST_Distance or ST_Intersects?

MADlib

PostGIS

PL/R

HDFS

4. The ___ utility in Greenplum allows administrators to recover a failed primary segment using its corresponding mirror.

gptransfer

gpload

gprecoverseg

gpsegment

5. Which component in Greenplum handles query planning?

Query Executor

Query Optimizer

Query Dispatcher

Coordinator Host

6. How does Greenplum's external table mechanism improve data ingestion workflows?

By storing data in the master node only

By enabling schema inference from file names

By allowing SQL queries on external files without first importing data

By automatically generating primary keys for each file row

7. GPText stores searchable documents within a logical container called a ___, which is managed by Solr.

segment

collection

schema

partition

8. What is required before training any machine learning model using MADlib in Greenplum?

Conversion of table to external format

Indexing of all numeric columns

Structured input data with labeled features

Enabling of MADlib in every user schema

9. Greenplum uses the ___ clause in external table definitions to specify how input data is formatted, such as CSV or TEXT.

FORMAT

ENCODING

LANGUAGE

OPTIONS

10. What is the primary purpose of segment mirroring in Greenplum?

To improve query performance

To replicate data between clusters

To provide fault tolerance for segment node failures

To enable external table backups

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11. Which two query characteristics can lead to inefficient execution plans in Greenplum? (Choose two)

Using partitioned tables with filters

Joins between non-co-located tables

Large result sets with no LIMIT clause

Queries using WHERE clause on indexed columns

12. What is the primary purpose of Redistribute Motion node in a Greenplum query plan?

To broadcast the tuples from each segment to all other segment

To send tuples to a particular segment based on the hash value of the defined distribution column

To gather tuples from the segments to the coordinator node

To manage container orchestration

13. Which of the following are the in-database ML solutions with Greenplum?

PostgresML

Pandas

SparkML

Apache MADlib

14. How does the gpcheckperf tool assist Greenplum administrators?

By validating SQL syntax in stored procedures

By running performance tests on interconnect bandwidth and latency

By creating performance reports from query plans

By exporting system logs to CSV

15. An administrator is planning to expand a Greenplum cluster by adding three new segment hosts.

After physical installation, which utility should be used to integrate the new nodes and redistribute data across them?

gpstart

gprecoverseg

gpexpand

gptransfer

16. You are investigating a query with performance issues. The query joins a large orders table and a small customer table, but the execution plan shows a Redistribute motion.

What should you do to optimize this query?

Add a LIMIT clause to restrict rows

Apply partitioning to both tables

Use a broadcast join for the small table

Create additional indexes on both tables

17. Greenplum’s ___ utility checks disk, memory, and network performance between hosts, aiding in system validation before expansion.

gpload

gphealthcheck

gpcheckperf

gpbackup

18. What function would you use in PostGIS to convert text-based coordinates into spatial objects?

ST_AsGeoJSON

ST_AsText

ST_GeomFromText

ST_Transform

19. What happens if an external table in Greenplum references an incorrect data format definition?

The query auto-corrects the format

Greenplum falls back to using default formatting

The query fails with a data format error

The table gets converted to an internal table

20. When a segment fails and its mirror is promoted, what process occurs during segment recovery in Greenplum?

The master node shuts down to avoid inconsistency

The recovery utility synchronizes the failed segment with its mirror

The system rewrites the query to exclude the segment

A full cluster reboot is triggered

Page 3 of 5

21. Which of the following best describes Greenplum's architecture model?

Master-slave replication using monolithic servers

Massively parallel processing (MPP) with shared memory access

Massively parallel processing (MPP) with shared-nothing architecture

Client-server model with centralized OLAP computation

22. Which utility is responsible for performing a full or incremental segment recovery?

gprecoverseg

gpsegment

gpstop

gpinitstandby

23. Greenplum's MPP architecture allows data to be processed in ___ across multiple segment instances.

isolation

parallel

serial

memory

24. Which two spatial operations can benefit from spatial indexing in PostGIS? (Choose two)

ST_Intersects

ST_Buffer

ST_Within

ST_AsText

25. What type of data format is typically required for inserting text documents into GPText collections?

CSV

JSON

Binary HEX

Avro

26. Which command is used to back up a Greenplum database?

gpdistbackup

gptransfer

gpbackup

gpload

27. How does the ST_Within function behave in a spatial query?

It checks if a geometry is enclosed by another geometry

It returns the area of a polygon

It converts longitude/latitude to Cartesian coordinates

It measures distance between geometries

28. You are asked to load a 10GB CSV file into Greenplum in the shortest possible time. You want to leverage Greenplum’s parallelism and avoid unnecessary file duplication.

What should you do?

Use psql with COPY and load the entire file on the master node

Load the file into a replicated table using INSERT INTO

Create an external readable table pointing to the CSV file and query it directly

Transfer the file to all segments manually and use gpload in non-parallel mode

29. Which two objects are required to create a basic table in Greenplum? (Choose two)

Schema

User role

Tablespace

Column definitions

30. What is the default behavior of Greenplum when a segment mirror is down but the primary is still available?

The system automatically fails over to the standby

Queries are blocked until the mirror is recovered

The system continues running in a degraded mode

The database shuts down to protect data integrity

Page 4 of 5

31. Which Greenplum utility is typically used to add new segment hosts to an existing cluster?

gpupgrade

gpinit

gpexpand

gpload

32. Which two configuration steps are required to use GPCC in a secured production environment? (Choose two)

Enable TLS/SSL for HTTPS access

Create Linux firewall rules to block internal ports

Create database users with GPCC access roles

Disable all client authentication

33. What happens when Greenplum cannot perform a local join due to mismatched distribution keys?

The query fails with a distribution error

A broadcast motion or redistribute motion occurs

The query falls back to the master node for execution

Data replication is triggered automatically

34. What must be done before accessing GPCC after a fresh installation?

Enable segment mirroring manually

Configure user roles in the pg_hba.conf file

Start the gpperfmon and gpcc services

Disable SSL encryption in database

35. Which of the following is the primary purpose of the Greenplum Command Center (GPCC)?

Creating distributed table schemas

Managing physical segment storage

Monitoring and administering Greenplum clusters through a web UI

Running data science workflows and Jupyter notebooks

36. Which two Greenplum utilities are most commonly used during a host failure recovery scenario? (Choose two)

gpload

gprecoverseg

gpinitstandby

gpstop

37. How does Greenplum ensure high availability of its master node?

By replicating data across all segment nodes

By automatically restarting failed services

Through the use of a standby master node

Through a distributed file system

38. Which Greenplum component is primarily responsible for generating an efficient execution plan based on query cost?

Master Scheduler

Query Optimizer

Segment Dispatcher

Resource Queue Manager

39. Which two GPText administrative actions require using the gptext-control utility? (Choose two)

Restarting the Solr engine

Monitoring collection query usage

Deploying Solr config sets

Purging index cache from disk

40. What is the role of segments in Greenplum?

They manage user authentication and permissions

They act as backup nodes for data recovery

They store portions of the data and execute parts of a query in parallel

They handle UI rendering and reporting

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41. What are two characteristics of hash-distributed tables in Greenplum that enhance query performance? (Choose two)

Supports automatic compression

Enables co-location of related rows

Reduces segment-level locking

Evenly distributes data across segments

42. What is the function of gpfdist in the Greenplum data loading process?

It transfers tables between databases

It is a Python library for in-database analytics

It acts as a lightweight data server to stream external files to segments

It backs up files before loading

250-608 Tanzu Greenplum v7 Technical Specialist Exam Preparation Resources

250-608 Tanzu Greenplum v7 Technical Specialist Exam Preparation Resources

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