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  Aug 3

  NCR Teradata认证nr0-016考试题库介绍

  考试代号: nr0-016
  问题数量:104 Q&As
  
  更新时间: 2009-08-31
  注册地点: Prometric/Pearson VUE
  题库全称:Teradata Application Development v2r5 Exam

  免费nr0-016题库Demo赏析

  　
  　
  Exam : NCR Teradata NR0-016
  Title : Teradata Application Development v2r5 Exam

  1. Denormalization is done in which phase of modeling?
  A. logical
  B. physical
  C. dimensional
  D. extended logical
  Answer: B

  2. Which application development API requires a pre-processor in addition to a compiler for a high-level language?
  A. CLI
  B. ECLI
  C. ODBC
  D. Embedded SQL
  Answer: D

  3. What does the Statistics Wizard do? (Choose three.)
  A. allows for "what-if" analysis
  B. allows you to schedule statistics collection
  C. makes recommendations based on table demographics
  D. allows importing of workload from other Teradata utilities
  Answer: BCD

  4. Which application development API provides maximum control over Teradata connectivity?
  A. CLI
  B. ECLI
  C. ODBC
  D. Embedded SQL
  Answer: A

  5. Which type of processing workload is least likely to justify the cost of upgrading a system?
  A. executive report
  B. daily sales report
  C. quarter end report
  D. nightly batch process
  Answer: C

  6. Which two utilities can you use to export data for a report using RECORD mode from the Teradata database? (Choose two.)
  A. BTEQ
  B. TPump
  C. FastExport
  D. Teradata SQL Assistant
  Answer: AC

  7. Why should you create a view with aggregation? (Choose two.)
  A. to reduce query complexity
  B. to minimize macro executions
  C. to improve query performance
  D. to minimize summary table maintenance
  Answer: AD

  8. Which three statements are true about the Extended Logical Data Model (ELDM)? (Choose three.)
  A. It contains the business rules of the organization.
  B. It is the main source of information for creating the PDM.
  C. It maps applications and transactions to the related objects.
  D. It provides demographics of data distribution, sizing, and access.
  Answer: BCD

  9. Which four factors are important to consider when deciding whether to calculate summary results on demand or to create a summary table? (Choose four.)
  A. concurrency of users
  B. typical rows per value
  C. response time requirements
  D. complexity of the calculations
  E. frequency of summary request
  F. volatility of the column to summarize
  Answer: CDEF

  10. What are three reasons for running Visual Explain on queries during application development? (Choose three.)
  A. to establish run times
  B. to determine access paths
  C. to determine locking profiles
  D. to validate the usage of indexes
  E. to calculate necessary spool space requirements
  Answer: BCD

  11. How are Volatile tables similar to Derived tables? (Choose three.)
  A. are local to the query
  B. table definition kept in memory
  C. are designed for optimal performance
  D. have no Data Dictionary access or transaction locks
  Answer: BCD

  12. What are three characteristics of third normal form? (Choose three.)
  A. There are no repeating groups.
  B. Indexes are defined on the attributes.
  C. Attributes must relate to the entire foreign key.
  D. Attributes must relate to the entire primary key.
  E. Attributes must relate to the primary key and not to each other.
  Answer: ADE

  13. To ensure you are working with current, consistent data, which lock should you recommend for SELECT queries in a multi-user environment with update activity?
  A. read
  B. write
  C. access
  D. exclusive
  Answer: A

  14. Which three are introduced in the ELDM? (Choose three.)
  A. foreign keys
  B. index selection
  C. join access rows
  D. column nullability
  E. maximum rows null
  F. value access frequency
  Answer: CEF

  15. What are two characteristics of an aggregate join index? (Choose two.)
  A. can be directly referenced by a query
  B. must contain more than one table reference
  C. can be created using a Global Temporary table
  D. automatically reflects changes in the underlying detail data
  E. COUNT is automatically present if SUM is used
  Answer: DE

  16. What are three characteristics of PP2? (Choose three.)
  A. supports macros
  B. supports multiple sessions
  C. supports COBOL, PL/I, C, and Pascal
  D. uses indicator variables for NULL handling
  Answer: ABD

  17. Which two tools allow you to import workloads from other Teradata tools? (Choose two.)
  A. TSET
  B. Index
  Wizard
  C. Visual Explain
  D. Statistics Wizard
  Answer: BD

  18. Which two types of journals can be defined for a table? (Choose two.)
  A. Transient LOCAL AFTER JOURNAL
  B. Transient UPDATE ONLY JOURNAL
  C. Permanent UPDATE ONLY JOURNAL
  D. Permanent LOCAL AFTER JOURNAL
  E. Permanent DUAL BEFORE JOURNAL
  Answer: DE

  19. What does the TSET utility do? (Choose two.)
  A. creates a view of your data demographics
  B. allows you to schedule statistics collection
  C. allows for the importing of workloads from other Teradata utilities
  D. allows you to import data demographics from one system to another
  E. allows you to import system characteristics from one system to another
  Answer: DE

  20. What are three characteristics of tactical queries? (Choose three.)
  A. highly tuned
  B. use direct access path
  C. multiple tables scanned
  D. defined response time requirements
  Answer: ABD

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