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 141–150 of 186

Q141

You are configuring a distributed table in Greenplum with dynamic partitioning. What happens if you define a partition key but do not configure any partitions?

  • A Data will be indexed automatically
  • B All data inserts will fail
  • C Data goes into the default partition
  • D Partitions will be created on demand
Explanation Without configured partitions, data flows to a default partition; others imply incorrect behaviors.
Q142

Which service provides data replication in Greenplum?

  • A gpfdist
  • B gpwindow
  • C gpload
  • D gpseg
Explanation gpfdist facilitates data distribution but is not for replication.
Q143

A company needs to optimize queries that join large tables. What would be the best approach?

  • A Create a materialized view
  • B Increase the number of segments
  • C Enable compression on tables
  • D Partition the tables by date
Explanation Materialized views store pre-computed joins, thus optimizing query performance.
Q144

You are configuring backup for a Greenplum cluster. What happens when you use pg_dump?

  • A Backs up only the schema
  • B Backs up data in segments
  • C Backs up the entire cluster
  • D Backs up only schemas with data
Explanation pg_dump backs up data per segment, unlike full cluster backups.
Q145

Which service in Greenplum helps to automate deployment?

  • A Greenplum Command Centre
  • B Greenplum Manager
  • C Greenplum Admin Tool
  • D Greenplum Scheduler
Explanation Greenplum Manager automates deployment and management tasks, while others do not focus on deployment.
Q146

A company needs to quickly perform advanced analytics on their large datasets. What should they leverage in Greenplum?

  • A Data Federation
  • B Elastic Scaling
  • C Partitioning Strategy
  • D In-Memory Processing
Explanation Data Federation allows for advanced analytics on external data, whereas the other options do not specifically aim at advanced analytics.
Q147

You are configuring a Greenplum cluster and receive a warning about data skew. What does this imply?

  • A Uneven load across segments
  • B Data encryption is needed
  • C Replication factor is too low
  • D Cluster size is insufficient
Explanation Data skew indicates uneven data distribution, impacting performance, while other options do not directly relate to data distribution issues.
Q148

Which service in Tanzu Greenplum is used for data pipelining?

  • A Datafusion
  • B Airflow
  • C DeepStream
  • D Dask
Explanation Airflow is specifically designed for creating data pipelines, while the others serve different purposes.
Q149

A company needs to store and analyze large unstructured data sets in Greenplum. What should they use?

  • A Heap tables
  • B JSONB columns
  • C CTEs
  • D Temporary views
Explanation JSONB columns are ideal for storing unstructured data, unlike the other options which are structured or temporary in nature.
Q150

What happens when you run a query without specifying the transaction isolation level in Greenplum?

  • A Default isolation level is applied
  • B Query fails with an error
  • C Isolation level must be set each time
  • D Data is automatically committed
Explanation If no isolation level is set, the database uses the default level, which is 'read committed' in Greenplum.