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 121–130 of 186

Q121

Which service in Greenplum enhances query performance by distributing data?

  • A Data Distribution
  • B Data Segmentation
  • C Data Partitioning
  • D Data Sharding
Explanation Data partitioning improves performance by organizing data for efficient access and processing.
Q122

A company needs to ensure high availability of their Greenplum database. What should they implement?

  • A Replication
  • B Clustering
  • C Sharding
  • D Load Balancing
Explanation Replication is essential for maintaining data availability during failures.
Q123

You are configuring a Greenplum environment. What happens when setting 'GP_USER' to an incorrect value?

  • A Errors in data access occur
  • B Database operations are unaffected
  • C Performance improves
  • D Query execution is optimized
Explanation An incorrect 'GP_USER' value will result in failed authentication for data access.
Q124

Which service in Greenplum is responsible for query optimization?

  • A Query Coordinator
  • B Data Storage
  • C Backup Manager
  • D Resource Manager
Explanation The Query Coordinator optimizes and plans query execution, while others serve different functions.
Q125

A company needs to deploy Greenplum in a highly available setup. What should they utilize?

  • A Single-node deployment
  • B Replica Set
  • C Data Sharding
  • D Segment Mirroring
Explanation Segment Mirroring provides high availability by duplicating segments across nodes.
Q126

You are configuring data distribution in Greenplum. What happens when using an inappropriate distribution key?

  • A Improved load balancing
  • B Increased query efficiency
  • C Data skew issues
  • D Faster data retrieval
Explanation An inappropriate distribution key leads to data skew, negatively impacting performance.
Q127

Which service in Greenplum enables external access to data via APIs?

  • A gpfdist
  • B gpfdist API
  • C pxf
  • D gpworkflow
Explanation gpfdist serves as a data loading service via external protocols, while other options are not primarily focused on external access.
Q128

A company needs to optimize query performance in Greenplum. What should be prioritized first?

  • A Increase node count
  • B Analyze table statistics
  • C Backup database
  • D Optimize gpexpand
Explanation Analyzing table statistics is crucial for the query planner to create optimal execution plans, unlike the other options which are less immediately impactful on performance.
Q129

You are configuring partitioning in Greenplum. What happens if you choose range partitioning on a column with non-continuous data?

  • A No partitions will be created
  • B Partitions are created but inefficiently
  • C Will receive a configuration error
  • D Continuous ranges are enforced automatically
Explanation Range partitioning can lead to inefficient partitions with gaps for non-continuous data instead of errors or auto-corrections, as seen in the other options.
Q130

Which service in Tanzu Greenplum is responsible for data ingestion?

  • A GPFDist
  • B GPAdmin
  • C GPORCA
  • D GPEngine
Explanation GPFDist handles data distribution for ingestion, while others serve different roles.