VMware

Tanzu Greenplum v7 Technical Specialist

250-608

Prepare for the 250-608 exam to validate your skills in Tanzu Greenplum v7.

186 questions 0 views Free
Start Mock Test Timed · Full-length · Scored

Questions 21–30 of 186

Q21

A company needs to ensure high availability for their Greenplum database. Which feature should they implement?

  • A Data Partitioning
  • B Replication
  • C Parallel Query Execution
  • D Indexing
Explanation Replication helps maintain high availability by duplicating data; the others do not provide redundancy features.
Q22

Which service does Greenplum use for data ingestion?

  • A gpfdist
  • B gpload
  • C gptransfer
  • D gpfdump
Explanation gpload is specifically designed for data ingestion; gpfdist is for file streaming, gptransfer for data transfer between clusters, and gpfdump for exporting data.
Q23

A company needs to run parallel queries in Greenplum. What should they optimize?

  • A Disk I/O
  • B CPU cores
  • C Network latency
  • D Memory usage
Explanation Optimizing disk I/O enhances parallel query performance; while CPU, network, and memory are important, I/O is critical in Greenplum.
Q24

You are configuring a user access role in Greenplum. Which command grants user privileges?

  • A GRANT USER
  • B ALTER ROLE
  • C GRANT ROLE
  • D SET ROLE
Explanation GRANT ROLE assigns specific privileges to a user; the other options do not correctly grant user privileges.
Q25

Which service is responsible for handling query execution in Greenplum?

  • A Segment servers
  • B Master node
  • C Data nodes
  • D Resource manager
Explanation Segment servers execute queries in parallel, while master nodes manage coordination and metadata.
Q26

A company needs to optimize a slow query in Greenplum. What should they do first?

  • A Add more segments
  • B Check query plan
  • C Increase memory allocation
  • D Partition the table
Explanation Checking the query plan reveals execution details and potential inefficiencies.
Q27

You are configuring a Greenplum cluster. What happens if the master node goes down?

  • A All queries will fail immediately
  • B Data will be lost
  • C Segment servers continue operating
  • D Replication auto-restarts
Explanation Segment servers operate independently, but no new queries can be initiated without the master.
Q28

Which service in Greenplum allows for quick analytical queries over large datasets?

  • A Direct Query Service
  • B QuickAnalytics
  • C PostgreSQL Query Engine
  • D Greenplum Parallel Query Engine
Explanation The Greenplum Parallel Query Engine is designed for efficient analytics on large datasets, while others do not exist or are not specific to Greenplum.
Q29

A company needs to securely share data between multiple Greenplum clusters. Which feature should they use?

  • A Data Streamer
  • B Federated Querying
  • C Database Link
  • D External Tables
Explanation Federated Querying allows secure data access across clusters, while the others do not provide the needed secure sharing functionality.
Q30

You are configuring a Greenplum cluster and require the data to be accessible via RESTful API. What should you use?

  • A Greenplum Web Service
  • B Greenplum Load Balancer
  • C Greenplum REST API Plugin
  • D Custom Middleware Solution
Explanation The Greenplum REST API Plugin provides native access via RESTful services, while the other options are either non-existent or not sufficient for this use case.