Which two activities indicate the need for a data warehouse、 (Choose two.)

试卷相关题目

• 1Which tool allows users to connect to a DB2 database using a wizard、

  A.Control Center

  B.IBM Data Studio

  C.Universal Connection Expert

  D.DB2 Connection Pool Manager

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• 2What is the purpose of the Query Tuner、

  A.To automatically capture and stop rogue queries.

  B.To provide recommendations and analysis for tuning a single query.

  C.To provide recommendations and analysis for tuning up to 100 queries.

  D.To recommend indexes and to guide DBAs through the process of creating new indexes.

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• 3What type of large object (LOB) is used to store LOB data together with the formatted rows on data pages, instead of in a separate LOB storage object、

  A.inline

  B.binary

  C.internal

  D.partitioned

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• 4What type of mechanism is a simple token value that is used to refer to a much bigger large object (LOB)、

  A.locator

  B.pointer

  C.address

  D.reference

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• 5Which product is used to customize execution environments for the purpose of controlling system resources so that one department or service class does not overwhelm the system、

  A.pureScale

  B.Workload manager

  C.Data partitioning feature

  D.Self-tuning memory manager

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• 6What is the primary function of an Online Transaction Processing (OLTP) workload、

  A.To combine data from multiple sources.

  B.To discover hidden relationships in data.

  C.To analyze large amounts of data to find patterns.

  D.To make changes to a small number of records within a single transaction.

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• 7Which isolation level offers the greatest protection of data but provides the least amount of concurrency、

  A.Read Stability (RS)

  B.Cursor Stability (CS)

  C.Repeatable Read (RR)

  D.Uncommitted Read (UR)

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• 8What factor influences lock escalation、

  A.Table size

  B.Buffer space

  C.Number of locks

  D.Available real storage

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• 9Which type of lock allows the lock owner and all concurrent applications to read, but not update, the locked data、

  A.Share (S)

  B.Update (U)

  C.Exclusive (X)

  D.Intent Exclusive (IX)

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• 10Application APP_A is performing updates to table TAB1 using the cursor stability (CS) isolation level. If application APP_B wants to retrieve all rows from table TAB1 without waiting for application APP_A to finish making updates, what isolation level must application APP_B use、

  A.Read Stability (RS)

  B.Repeatable Read (RR)

  C.Uncommitted Read (UR)

  D.Cursor Stability (CS)

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