多选题When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this? ()(Choose two.)AIt produces less accurate results of the comparison analysis.BI

题目
多选题
When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this? ()(Choose two.)
A

It produces less accurate results of the comparison analysis.

B

It automatically calls the SQL Tuning Advisor for recommendations.

C

It shortens the time of execution and reduces the impact on system resources.

D

Only the changes in the execution plan, and not performance regression, are detected.


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更多“多选题When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this? ()(Choose two.)AIt produces less accurate results of the comparison analysis.BI”相关问题
  • 第1题:

    When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this? ()(Choose two.)

    • A、It produces less accurate results of the comparison analysis.
    • B、It automatically calls the SQL Tuning Advisor for recommendations.
    • C、It shortens the time of execution and reduces the impact on system resources.
    • D、Only the changes in the execution plan, and not performance regression, are detected.

    正确答案:A,C

  • 第2题:

    What two statements are true regarding the recommendations received from the SQL Access Advisor?()(Choose two.)

    • A、It cannot generate recommendations that support multiple workload queries.
    • B、It can recommend partitioning on tables provided that the workloads have some predicates and joins on the columns of the NUMBER or DATE type.
    • C、It can recommend partitioning only on tables that have at least 10,000 rows.
    • D、It can recommend only B-tree indexes and not bitmap or function-based indexes

    正确答案:B,C

  • 第3题:

    You want to analyze a SQL Tuning Set (STS) using SQL Performance Analyzer in a test database. Which two statements are true regarding the activities performed during the test execution of SQLs in a SQL Tuning Set?()

    • A、 Every SQL statement in the STS is considered only once for execution.
    • B、 The SQL statements in the STS are executed concurrently to produce the execution plan and execution statistics.
    • C、 The execution plan and execution statistics are computed for each SQL statement in the STS. 
    • D、 The effects of DDL and DML are considered to produce the execution plan and execution statistics.

    正确答案:A,C

  • 第4题:

    When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this?()

    • A、It produces less accurate results of the comparison analysis.
    • B、It automatically calls the SQL Tuning Advisor for recommendations.
    • C、It shortens the time of execution and reduces the impact on system resources.
    • D、Only the changes in the execution plan, and not performance regression, are detected.

    正确答案:A,C

  • 第5题:

    You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing. What information is captured as part of this process?()

    • A、the SQL text SQL
    • B、the execution plan
    • C、the execution context
    • D、the execution frequency
    • E、the system change number (SCN)

    正确答案:A,C,D

  • 第6题:

    多选题
    You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing. What information is captured as part of this process?()
    A

    the SQL text SQL

    B

    the execution plan

    C

    the execution context

    D

    the execution frequency

    E

    the system change number (SCN)


    正确答案: B,A
    解析: 暂无解析

  • 第7题:

    多选题
    Which three statements about performance analysis by SQL Performance Analyzer are true? ()(Choose three.)
    A

    It detects changes in SQL execution plans.

    B

    It produces results that can be used to create the SQL plan baseline.

    C

    The importance of SQL statements is based on the size of the objects accessed.

    D

    It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.

    E

    It shows only the overall impact on workload and not the net SQL impact on workload.


    正确答案: B,E
    解析: 暂无解析

  • 第8题:

    多选题
    Which two of these statements best describe fast secure roaming for the wireless core feature set using autonomous access points? (Choose two.) ()
    A

    It is compatible with all wireless clients.

    B

    It reduces roaming latency through reduced client RF channel scanning enhancements.

    C

    It reduces roaming latency to targeted times of less than 75ms.

    D

    Roaming occurs without reauthentication through a centralized RADIUS server.

    E

    It is enabled through WLSE deployment.


    正确答案: A,C
    解析: 暂无解析

  • 第9题:

    多选题
    Which two of these statements best describe fast secure roaming? (Choose two.)()
    A

    available only in autonomous APs

    B

    available in autonomous and lightweight APs

    C

    a feature of WDS in autonomous APs

    D

    a feature of WDS in lightweight APs

    E

    requires at least one AP and one Wireless LAN Services Module


    正确答案: D,E
    解析: 暂无解析

  • 第10题:

    多选题
    Which two of these statements best describe the benefits of WPAv2? (Choose two.)()
    A

    SSID broadcast prevention

    B

    man-in-the-middle attack protection

    C

    cost reduction through software upgrades in all existing hardware

    D

    dynamic key generation

    E

    RF jamming prevention


    正确答案: B,C
    解析: 暂无解析

  • 第11题:

    多选题
    Which three statements about performance analysis by SQL Performance Analyzer are true?()
    A

    It detects changes in SQL execution plans.

    B

    It produces results that can be used to create the SQL plan baseline.

    C

    The importance of SQL statements is based on the size of the objects accessed.

    D

    It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.

    E

    It shows only the overall impact on workload and not the net SQL impact on workload.


    正确答案: C,E
    解析: 暂无解析

  • 第12题:

    多选题
    When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this?()
    A

    It produces less accurate results of the comparison analysis.

    B

    It automatically calls the SQL Tuning Advisor for recommendations.

    C

    It shortens the time of execution and reduces the impact on system resources.

    D

    Only the changes in the execution plan, and not performance regression, are detected.


    正确答案: D,A
    解析: 暂无解析

  • 第13题:

    Which two statements about the SQL Management Base (SMB) are true? ()(Choose two.)

    • A、It contains only SQL profiles generated by SQL Tuning Advisor.
    • B、It stores plans generated by the optimizer using a stored outline.
    • C、It is part of the data dictionary and stored in the SYSAUX tablespace.
    • D、It is part of the data dictionary and stored in the SYSTEM tablespace.
    • E、It contains the statement log, the plan history, plan baselines, and SQL profiles.

    正确答案:C,E

  • 第14题:

    You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing.  What information is captured as part of this process?()

    • A、 the SQL text
    • B、 the execution plan
    • C、 the execution context
    • D、 the execution frequency
    • E、 the system change number (SCN)

    正确答案:A,C,D

  • 第15题:

    Which three statements about performance analysis by SQL Performance Analyzer are true?()

    • A、 It detects changes in SQL execution plans.
    • B、 It produces results that can be used to create the SQL plan baseline.
    • C、 The importance of SQL statements is based on the size of the objects accessed.
    • D、 It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.
    • E、 It shows only the overall impact on workload and not the net SQL impact on workload.

    正确答案:A,B,D

  • 第16题:

    You want to analyze a SQL Tuning Set (STS) using SQL Performance Analyzer in a test database. Which two statements are true regarding the activities performed during the test execution of SQLs in a SQL Tuning Set?()

    • A、Every SQL statement in the STS is considered only once for execution
    • B、The SQL statements in the STS are executed concurrently to produce the execution plan and execution statistics
    • C、The execution plan and execution statistics are computed for each SQL statement in the STS
    • D、The effects of DDL and DML are considered to produce the execution plan and execution statistics

    正确答案:A,C

  • 第17题:

    多选题
    What two statements are true regarding the recommendations received from the SQL Access Advisor?()(Choose two.)
    A

    It cannot generate recommendations that support multiple workload queries.

    B

    It can recommend partitioning on tables provided that the workloads have some predicates and joins on the columns of the NUMBER or DATE type.

    C

    It can recommend partitioning only on tables that have at least 10,000 rows.

    D

    It can recommend only B-tree indexes and not bitmap or function-based indexes


    正确答案: D,C
    解析: 暂无解析

  • 第18题:

    多选题
    You want to analyze a SQL Tuning Set (STS) using SQL Performance Analyzer in a test database. Which two statements are true regarding the activities performed during the test execution of SQLs in a SQL Tuning Set?()
    A

    Every SQL statement in the STS is considered only once for execution

    B

    The SQL statements in the STS are executed concurrently to produce the execution plan and execution statistics

    C

    The execution plan and execution statistics are computed for each SQL statement in the STS

    D

    The effects of DDL and DML are considered to produce the execution plan and execution statistics


    正确答案: A,B
    解析: 暂无解析

  • 第19题:

    多选题
    Which two statements about the SQL Management Base (SMB) are true? ()(Choose two.)
    A

    It contains only SQL profiles generated by SQL Tuning Advisor.

    B

    It stores plans generated by the optimizer using a stored outline.

    C

    It is part of the data dictionary and stored in the SYSAUX tablespace.

    D

    It is part of the data dictionary and stored in the SYSTEM tablespace.

    E

    It contains the statement log, the plan history, plan baselines, and SQL profiles.


    正确答案: D,A
    解析: 暂无解析

  • 第20题:

    多选题
    Which two statements are true about the relationship between static NAT and proxy ARP? ()(Choose two.)
    A

    It is necessary to forward ARP requests to remote hosts.

    B

    It is necessary when translated traffic belongs to the same subnet as the ingress interface.

    C

    It is not automatic and you must configure it.

    D

    It is enabled by default and you do not need to configure it.


    正确答案: D,B
    解析: 暂无解析

  • 第21题:

    多选题
    Your company uses SQL Server 2005. Users report that report execution is slow. You investigate and discover that some queries do not use optimal execution plans. You also notice that some optimizer statistics are missing and others are out of date. You need to correct the problem so that reports execute more quickly. Which two Transact-SQL statements should you use?()
    A

    DBCC CHECKTABLE

    B

    ALTER INDEX REORGANIZE

    C

    UPDATE STATISTICS

    D

    CREATE STATISTICS

    E

    DBCC SHOW_STATISTICS

    F

    DBCC UPDATEUSAGE


    正确答案: B,D
    解析: 暂无解析

  • 第22题:

    多选题
    When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this? ()(Choose two.)
    A

    It produces less accurate results of the comparison analysis.

    B

    It automatically calls the SQL Tuning Advisor for recommendations.

    C

    It shortens the time of execution and reduces the impact on system resources.

    D

    Only the changes in the execution plan, and not performance regression, are detected.


    正确答案: D,B
    解析: 暂无解析

  • 第23题:

    多选题
    When executing a SQL workload,you choose to generate execution plans only, without collecting execution statistics.  Which two statements describe the implications of this?()
    A

    It produces less accurate results of the comparison analysis.

    B

    It automatically calls the SQL Tuning Advisor for recommendations.

    C

    It shortens the time of execution and reduces the impact on system resources.

    D

    Only the changes in the execution plan,and not performance regression,are detected.


    正确答案: A,C
    解析: 暂无解析

  • 第24题:

    多选题
    You want to analyze a SQL Tuning Set (STS) using SQL Performance Analyzer in a test database. Which two statements are true regarding the activities performed during the test execution of SQLs in a SQL Tuning Set?()
    A

    Every SQL statement in the STS is considered only once for execution.

    B

    The SQL statements in the STS are executed concurrently to produce the execution plan and execution statistics.

    C

    The execution plan and execution statistics are computed for each SQL statement in the STS.

    D

    The effects of DDL and DML are considered to produce the execution plan and execution statistics.


    正确答案: D,B
    解析: 暂无解析