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Which statement is NOT true?A.Most callers are girl students.B.There are only a few callers every time.C.The students’ phones show that many parents failed in properly handling their children’ s problems.D.This special phone line has been in service for m

题目

Which statement is NOT true?

A.Most callers are girl students.

B.There are only a few callers every time.

C.The students’ phones show that many parents failed in properly handling their children’ s problems.

D.This special phone line has been in service for more than a year


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  • 第1题:

    Which statement about RIPng is true?()

    • A、RIPng allows for routes with up to 30 hops.
    • B、RIPng is enabled on each interface separately.
    • C、RIPng uses broadcasts to exchange routes.
    • D、There can be only one RIPng process per router.

    正确答案:B

  • 第2题:

    Which two statements about views are true? ()

    • A、A view can be created as read only.
    • B、A view can be created as a join on two or more tables.
    • C、A view cannot have an ORDER BY clause in the SELECT statement.
    • D、A view cannot be created with a GROUP BY clause in the SELECT statement.
    • E、A view must have aliases defined for the column names in the SELECT statement.

    正确答案:A,B

  • 第3题:

    Which statement about an IPS is true?()

    • A、The IPS is in the traffic path.
    • B、Only one active interface is required.
    • C、Full benefit of an IPS will not be realized unless deployed in conjunction with an IDS.
    • D、When malicious traffic is detected,the IPS will only send an alert to a management station.

    正确答案:A

  • 第4题:

    Which statement is true regarding syslog on Junos devices?()

    • A、No logging is enabled by default
    • B、By default the information is stored in all file named events
    • C、Only the message severity level must be configured
    • D、You can configure the router to send log messages to the console

    正确答案:D

  • 第5题:

    Which statement is true regarding the VALIDATE DATABASE command?()

    • A、It checks the database for intrablock corruptions only.
    • B、It checks for block corruption in the valid backups of the database.
    • C、It checks the database for both intrablock and interblock corruptions.
    • D、It checks for only those corrupted blocks that are associated with data files.

    正确答案:A

  • 第6题:

    Which two statements about subqueries are true? ()

    • A、A subquery should retrieve only one row.
    • B、A subquery can retrieve zero or more rows.
    • C、A subquery can be used only in SQL query statements.
    • D、Subqueries CANNOT be nested by more than two levels.
    • E、A subquery CANNOT be used in an SQL query statement that uses group functions.
    • F、When a subquery is used with an inequality comparison operator in the outer SQL statement, the column list in the SELECT clause of the subquery should contain only one column.

    正确答案:B,F

  • 第7题:

    单选题
    Which statement regarding the contents of the V$PARAMETER view is true?()
    A

    displays only the list of default values

    B

    displays only the list of all basic parameters

    C

    displays the currently in effect parameter values

    D

    displays only the list of all advanced parameters

    E

    displays the list of all the parameter files of a database


    正确答案: B
    解析: 暂无解析

  • 第8题:

    单选题
    Which statement about firefighting foam is TRUE?()
    A

    Foam conducts electricity

    B

    To be most effective,foam should be directed at the base of the fire

    C

    Foam is most effective on burning liquids which are flowing

    D

    Foam can ONLY be used to extinguish class A fires


    正确答案: A
    解析: 暂无解析

  • 第9题:

    单选题
    Which statement is true regarding the VALIDATE DATABASE command?()
    A

     It checks the database for intrablock corruptions only.

    B

     It checks for block corruption in the valid backups of the database.

    C

     It checks the database for both intrablock and interblock corruptions.

    D

     It checks for only those corrupted blocks that are associated with data files.


    正确答案: A
    解析: 暂无解析

  • 第10题:

    单选题
    Which statement about the DVS engine is true?()
    A

    the DVS engine can useWebroot and McAfee scanning in parallel

    B

    the DVS engine generates the WBRS

    C

    the DVS engine never inspects the client HTTP request

    D

    the DVS engine is only used for Layer 4 traffic monitoring


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    Which statement is TRUE concerning lifeboat gripes?()
    A

    They must be released by freeing a safety shackle

    B

    They should not be released until the boat is in lowering position

    C

    They may be adjusted by a turnbuckle

    D

    They are normally used only with radial davits


    正确答案: D
    解析: 暂无解析

  • 第12题:

    单选题
    Which statement is true regarding Flashback Version Query?()
    A

     It returns versions of rows only within a transaction.

    B

     It can be used in subqueries contained only in a SELECT statement.

    C

     It will return an error if the undo retention time is less than the lower bound time or SCN specified.

    D

     It retrieves all versions including the deleted as well as subsequently reinserted versions of the rows.


    正确答案: A
    解析: 暂无解析

  • 第13题:

    Which two are true about aggregate functions?()

    • A、You can use aggregate functions in any clause of a SELECT statement.
    • B、You can use aggregate functions only in the column list of the select clause and in the WHERE clause of a SELECT statement.
    • C、You can mix single row columns with aggregate functions in the column list of a SELECT statement by grouping on the single row columns.
    • D、You can pass column names, expressions, constants, or functions as parameter to an aggregate function.
    • E、You can use aggregate functions on a table, only by grouping the whole table as one single group.
    • F、You cannot group the rows of a table by more than one column while using aggregate functions.

    正确答案:A,E

  • 第14题:

    Which statement is true about XpauseTarget in Oracle JRockit JVM ? ()

    • A、 This option is supported by all type of Garbage collection modes.
    • B、 This option is only supported by Generational Garbage Collection mode.
    • C、 This option is only supported by Mark and Sweep Garbage Collection mode.
    • D、 This option is only supported by Dynamic Garbage Collection mode.

    正确答案:D

  • 第15题:

    Which statement about the DVS engine is true?()

    • A、the DVS engine can useWebroot and McAfee scanning in parallel
    • B、the DVS engine generates the WBRS
    • C、the DVS engine never inspects the client HTTP request
    • D、the DVS engine is only used for Layer 4 traffic monitoring

    正确答案:A

  • 第16题:

    Which statement regarding the contents of the V$PARAMETER view is true?()

    • A、displays only the list of default values
    • B、displays only the list of all basic parameters
    • C、displays the currently in effect parameter values
    • D、displays only the list of all advanced parameters
    • E、displays the list of all the parameter files of a database

    正确答案:C

  • 第17题:

    Which statement is true regarding Flashback Version Query? ()

    • A、 It returns versions of rows only within a transaction.
    • B、 It can be used in subqueries contained only in a SELECT statement.
    • C、 It will return an error if the undo retention time is less than the lower bound time or SCN specified.
    • D、 It retrieves all versions including the deleted as well as subsequently reinserted versions of the rows.

    正确答案:D

  • 第18题:

    单选题
    Which statement is true about loop guard?()
    A

    Loop guard only operates on interfaces that are considered point-to-point by the spanning tree.

    B

    Loop guard only operates on root ports.

    C

    Loop guard only operates on designated ports.

    D

    Loop guard only operates on edge ports.


    正确答案: C
    解析: 暂无解析

  • 第19题:

    单选题
    Which statement is true about a routing table?()
    A

    It contains routes learned dynamically only.

    B

    It finds the best path to each destination by using a modified shortest-path-first calculation.

    C

    It contains only active BGP routes.

    D

    It contains all accepted routes to all destinations.


    正确答案: C
    解析: 暂无解析

  • 第20题:

    单选题
    Which statement is true about XpauseTarget in Oracle JRockit JVM ? ()
    A

     This option is supported by all type of Garbage collection modes.

    B

     This option is only supported by Generational Garbage Collection mode.

    C

     This option is only supported by Mark and Sweep Garbage Collection mode.

    D

     This option is only supported by Dynamic Garbage Collection mode.


    正确答案: C
    解析: 暂无解析

  • 第21题:

    多选题
    Which two statements about views are true?()
    A

    A view can be created as read only.

    B

    A view can be created as a join on two or more tables.

    C

    A view cannot have an ORDER BY clause in the SELECT statement.

    D

    A view cannot be created with a GROUP BY clause in the SELECT statement.

    E

    A view must have aliases defined for the column names in the SELECT statement.


    正确答案: D,E
    解析: 暂无解析

  • 第22题:

    单选题
    Which statement is true regarding synonyms?()
    A

    Synonyms can be created only for a table 

    B

    Synonyms are used to reference only those tables that are owned by another user 

    C

    A public synonym and a private synonym can exist with the same name for the same table 

    D

    The DROP SYNONYM statement removes the synonym, and the table on which the synonym has been created becomes invalid


    正确答案: C
    解析: 暂无解析

  • 第23题:

    单选题
    Which statement is TRUE concerning apogean tides().
    A

    They occur only at quadrature

    B

    They occur when the Moon is nearest the Earth

    C

    They cause diurnal tides to become mixed

    D

    They have a decreased range from normal


    正确答案: A
    解析: 暂无解析