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

试卷相关题目

• 1Which two activities indicate the need for a data warehouse、 (Choose two.)

  A.Confirm product inventory.

  B.Monitor product availability.

  C.Summarize sales by region.

  D.Identify patterns for products sold in the last five years.

  E.Associate one or more products with a purchase order.

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• 2Which 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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• 3What 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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• 4What 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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• 5What 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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• 6Which 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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• 7What factor influences lock escalation、

  A.Table size

  B.Buffer space

  C.Number of locks

  D.Available real storage

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• 8Which 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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• 9Application 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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• 10Which statement will prevent concurrent application processes from performing anything other than read-only operations against a table named TAB1、

  A.LOCK TABLE tab1 IN READ MODE

  B.LOCK TABLE tab1 IN SHARE MODE

  C.LOCK TABLE tab1 IN EXCLUSIVE MODE

  D.LOCK TABLE tab1 IN READ-ONLY MODE

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