Download PureData System for Analytics v7-1.Prepaway.C2090-560.2018-08-07.1e.74q.vcex

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Exam PureData System for Analytics v7.1
Number C2090-560
File Name PureData System for Analytics v7-1.Prepaway.C2090-560.2018-08-07.1e.74q.vcex
Size 570 Kb
Posted August 07, 2018



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Demo Questions

Question 1
What mechanism does NPS use for LDAP authentication? 


  • A: Pluggable Authentication Module (PAM)
  • B: Generic Security Services API (GSSAPI)
  • C: Simple Authentication and Security Layer (SASL)
  • D: Berkeley Software Distribution Authentication (BSDAuth)



Question 2
The Pure Data System for Analytics implements which level of transaction isolation?

  • A: Serializable
  • B: Committed read
  • C: Repeatable read
  • D: Uncommitted read



Question 3
What is the maximum number of columns you can choose as organizing keys for a clustered base table?

  • A: 1
  • B: 2
  • C: 4
  • D: 8



Question 4
Which of the following is NOT true about the createxid column?

  • A: They can be queried
  • B: They are updated to zero during a DELETE operation
  • C: Rows loaded in a transaction are assigned the same value
  • D: They contain the ID of the transaction that created the record



Question 5
What is nzconvert used for?

  • A: To convert compressed external tables into ASCII text
  • B: To convert between character encodings before loading data
  • C: To translate stored procedures into NZPLSOL compatible syntax
  • D: To upgrade/downgrade the database to a different software version 



Question 6
Dirty reads occur when a transaction reads data that is written by concurrentuncommitted transactions. Under what conditions are dirty reads allowed on the IBM PDA system?

  • A: When an FPGA is busy
  • B: By turning off serialization within the system
  • C: They are never permitted under any conditions
  • D: When the transaction isolation is read-committed



Question 7
What can be backed up using the nzbackup utility?

  • A: Host data
  • B: pg.log files
  • C: Temporary tables
  • D: User permissions



Question 8
Which of the following will NOT show the current sessions on the Netezza server?

  • A: nzsql\act
  • B: nzsession
  • C: nzsystem-showSessions
  • D: SELECT* FROM_v_session



Question 9
Which of the following statements about temporary tables is TRUE?

  • A: Synonyms can be created for temporary tables
  • B: Temporary tables have been deprecated as of NPS 7.0.3
  • C: Temporary tables can be specified as a base table for materialized views
  • D: When a user executes the command "SET SESSION READ ONLY", they are still able to create and write to temporary tables



Question 10
What are two considerations for usage of materialized views? (Choose two.)

  • A: Materialized views are not supported.
  • B: Materialized views are logical entities.
  • C: Materialized views may improve query performance.
  • D: Materialized views are the same as database views.
  • E: Materialized views are considered for usage by the Optimizer. 









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