VMware
Tanzu Greenplum v7 Technical Specialist
250-608
Prepare for the 250-608 exam to validate your skills in Tanzu Greenplum v7.
186 questions
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Questions 11–20 of 186
A company needs to quickly evaluate stream data. Which capability should they use in Greenplum?
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A
Data Wrangling
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B
Streaming Analytics
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C
Batch Processing
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D
OLAP Queries
Explanation
Streaming Analytics provides real-time data evaluation; the others are more suited for structured or batch data.
What happens when you increase the number of segments in Greenplum?
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A
Increased data redundancy
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B
Poor query performance
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C
Improved data parallelism
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D
More complex schema management
Explanation
Increasing segments enhances data parallelism, optimizing query execution.
Which service in Greenplum assists with data integration?
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A
Data Pipeline
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B
Query Executor
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C
Data Snapshot
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D
Backup Manager
Explanation
Data Pipeline facilitates data integration across systems, while other options serve different purposes.
A company needs to optimize its Greenplum queries to reduce response times. What should they analyze first?
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A
Query execution plans
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B
Hardware configurations
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C
User access patterns
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D
External data sources
Explanation
Analyzing query execution plans reveals inefficiencies, while others are less directly related.
You are configuring Greenplum's vacuum operation. What happens when you omit the 'FULL' option?
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A
It optimizes performance only
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B
It locks the entire database
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C
It reclaims space partially
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D
It causes a complete downtime
Explanation
Omitting 'FULL' allows partial space reclamation, unlike the complete reclamation with 'FULL'.
Which service in Greenplum enhances fault tolerance?
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A
Data Replication
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B
Data Partitioning
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C
Query Optimization
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D
Indexing
Explanation
Data Replication ensures each data segment has copies, enhancing fault tolerance, while the others improve efficiency or performance.
A company needs to distribute query load evenly across segments. What Greenplum feature should they use?
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A
Load Balancer
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B
Workload Management
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C
Query Caching
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D
Segment Mapping
Explanation
Workload Management allows dynamic distribution of queries, while the other options do not specifically balance load.
You are configuring a backup in Greenplum. What happens when you set the backup retention policy to zero?
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A
Backups are retained indefinitely
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B
Backups will be deleted immediately
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C
Backups will fail to create
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D
Backups will be checked weekly
Explanation
A retention policy of zero causes immediate deletion of backups, while the other options incorrectly suggest different behaviors.
Which service in Greenplum provides data ingestion capabilities?
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A
gpfdist
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B
gptransfer
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C
gpload
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D
gpcopy
Explanation
gpload is specifically designed for bulk loading data into Greenplum; others do not focus on ingestion.
You are configuring a Greenplum cluster. What happens when you set the parameter 'max_connections' to a low value?
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A
Improved query performance
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B
Increased memory usage
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C
Limited concurrent users
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D
Reduced disk I/O
Explanation
Setting 'max_connections' low restricts the number of concurrent users; the others do not directly relate to connection limits.