• nr0-014题库demo免费下载

  Filed under NCR Teradata
  Aug 3

  NCR Teradata认证nr0-014考试题库介绍

  考试代号: nr0-014
  问题数量:88 Q&As
  
  更新时间: 2009-09-08
  注册地点: Prometric/Pearson VUE
  题库全称:Teradata Administration v2r5 Exam

  免费nr0-014题库Demo赏析

  　
  　
  Exam : NCR Teradata NR0-014
  Title : Teradata Administration v2r5 Exam

  1. Which view can be used to determine I/O and CPU usage at the user level?
  A. ResNode
  B. AMPUsage
  C. ResIOView
  D. ResCPUUsageByAMPView
  Answer: B

  2. Weights and scheduling policies within Priority Scheduler control the allocation of which two resources? (Choose two.)
  A. I/O
  B. CPU
  C. sessions
  D. perm space
  E. spool space
  Answer: AB

  3. A user belonging to an allocation group with an IMD policy and a weight of 40% logs onto an idle system.
  What happens?
  A. The user’s session will have access to its owner’s partition weight %.
  B. The user’s session will have access to 40% of all system resources.
  C. The user’s session will have access to all available system resources.
  D. The user’s session will have access to 40% of available system resources.
  E. The user’s session will have access to 60% of available system resources.
  Answer: C

  4. You have User A running a complex join with $L priority in the DEFAULT partition. The database administrator uses Teradata Manager to change the priority of the user’s query to $R.
  Which two effects does this change have on the jobs currently running on a busy system? (Choose two).
  A. The other users’ jobs are not affected.
  B. User A’s job will experience performance degradation.
  C. User A’s job will experience a performance improvement.
  D. The other users’ jobs experience performance degradation.
  E. The other users’ jobs experience a performance improvement.
  Answer: CD

  5. You are using Database Query Log (DBQL).
  Logging can be invoked on _____. (Choose three.)
  A. all users
  B. a list of users
  C. a list of account strings
  D. a list of database objects
  Answer: ABC

  6. How are inherited privileges applied by the database administrator?
  A. by using GIVE to change user hierarchy
  B. by automatically applying inherited privileges
  C. by granting inherited privileges directly to the user
  D. by granting privileges with the ALL option to a user
  Answer: D

  7. Which three utilities are limited by the MaxLoadTasks parameter in the DBSControl utility? (Choose three.)
  A. BTEQ
  B. TPump
  C. FastLoad
  D. MultiLoad
  E. FastExport
  Answer: CDE

  8. Which two can be determined with AMPUsage data? (Choose two.)
  A. user activity
  B. user privileges
  C. session priority
  D. database owners
  Answer: AC

  9. Which ResUsage table provides information on node utilization?
  A. ResUsageSctl
  B. ResUsageSvpr
  C. ResUsageScpu
  D. ResUsageSpma
  Answer: D

  10. An allocation group has a scheduling policy of ABS and a group weight of 40%. A user belonging to this group logs onto an idle system.
  What happens?
  A. The user’s session will have access to its owner’s partition weight %.
  B. The user’s session will have access to no more than 40% of the system.
  C. The user’s session will have access to no more than 60% of the system.
  D. The user’s session will have access to more than 40% of the system if resources are available.
  E. The user’s session will have access to more than 60% of the system if resources are available.
  Answer: B

  11. Two thousand users have just been added to the Teradata database and are experiencing connection problems.
  What could you add to resolve the problem?
  A. PEs
  B. AMPs
  C. vdisks
  D. I/O service processors
  Answer: A

  12. What does the CPU Eff % column measure in the ResNode macro?
  A. efficiency of each CPU in each node
  B. percentage of CPUs working efficiently in all nodes
  C. how well the CPUs work in parallel across all nodes
  D. percentage of CPUs working in parallel across all nodes
  Answer: C

  13. What are two scheduling policies within Priority Scheduler? (Choose two.)
  A. low
  B. rush
  C. relative
  D. absolute
  Answer: CD

  14. Which facility automatically manages system workflow by preventing queries from entering the system that violate predefined rules?
  A. TDQM
  B. ResUsage
  C. DBSControl
  D. Priority Scheduler
  Answer: A

  15. Which ResUsage table should you look at to determine node memory usage?
  A. ResUsageSldv
  B. ResUsageSvpr
  C. ResUsageScpu
  D. ResUsageSpma
  Answer: D

  16. Which three do you use to change collection and logging rates for ResUsage in Teradata? (Choose three.)
  A. xctl
  B. gdb
  C. xdbw
  D. ferret
  E. Teradata Manager
  Answer: ACE

  17. You are working in the Default resource partition.
  Which Performance Group should be used sparingly due to the negative performance that can be introduced into your system?
  A. $M
  B. $L
  C. $R
  D. $H
  Answer: C

  18. When troubleshooting bottlenecks, which two utilizations should you examine first? (Choose two.)
  A. disk utilization
  B. CPU utilization
  C. BYNET utilization
  D. channel utilization
  E. memory utilization
  Answer: AB

  19. What is a benefit of assigning account strings at the profile level?
  A. enables you to change all or part of the designation just once for many users
  B. enables you to grant privileges to a group of users based on their account string
  C. enables you to save space by reducing the number of rows inserted into DBC. AMPUsage
  D. enables you to save space by reducing the number of rows inserted into DBC. AccessRights
  Answer: A

  20. Users are complaining about poor system response time. You have identified a query that is consuming a large amount of CPU. You run an EXPLAIN on this query.
  Which two steps in the EXPLAIN could identify the source of contention? (Choose two),
  A. a Merge Join of two large tables
  B. a (1=1) product join of two large tables
  C. duplication of a small table across all AMPs
  D. a Merge Join of a small table to a large table
  E. redistribution of a large table across all AMPs
  Answer: BE

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