单选题Several @functions can execute multiple statements. Which one of the following initializes a variable and can increment in during the operation?()A@do B@for C@while D@dowhile 

题目
单选题
Several @functions can execute multiple statements. Which one of the following initializes a variable and can increment in during the operation?()
A

 @do 

B

 @for 

C

 @while 

D

 @dowhile 


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更多“单选题Several @functions can execute multiple statements. Which one of the following initializes a variable and can increment in during the operation?()A  @do B  @for C  @while D  @dowhile”相关问题
  • 第1题:

    Which of the following statements is false?()

    • A、There can be more than one master catalog for a store
    • B、A sales catalog is a subset of the master catalog
    • C、The master catalog is the central place for the stores merchandise
    • D、There can be more than one sales catalog for a store
    • E、Multiple stores can share a master catalog

    正确答案:A

  • 第2题:

    For the following items ,which one can be used to authenticate the IPsec peers during IKE Phase 1?()

    • A、pre-shared key
    • B、integrity check value
    • C、XAUTH
    • D、Diffie-Hellman Nonce

    正确答案:A

  • 第3题:

    Which three statements about subqueries are true?()

    • A、A single row subquery can retrieve only one column and one row.
    • B、A single row subquery can retrieve only one row but many columns.
    • C、A multiple row subquery can retrieve multiple rows and multiple columns.
    • D、A multiple row subquery can be compared by using the ">" operator.
    • E、A single row subquery can use the IN operator.
    • F、A multiple row subquery can use the "=" operator.

    正确答案:B,C,D

  • 第4题:

    Which  statements are true regarding the Oracle Data Pump export and import operations()

    • A、You cannot export data from a remote database.
    • B、You can rename tables during an import operation.
    • C、You can overwrite existing dump files during an export operation.
    • D、You can compress the data during export but not the metadata because it is not supported

    正确答案:B,C

  • 第5题:

    Which two statements are true regarding the Oracle Data Pump export and import operations()

    • A、You cannot export data from a remote database.
    • B、You can rename tables during an import operation.
    • C、You can overwrite existing dump files during an export operation.
    • D、You can compress the data during export but not the metadata because it is not supported.

    正确答案:B,C

  • 第6题:

    多选题
    Which three statements about subqueries are true?()
    A

    A single row subquery can retrieve only one column and one row.

    B

    A single row subquery can retrieve only one row but many columns.

    C

    A multiple row subquery can retrieve multiple rows and multiple columns.

    D

    A multiple row subquery can be compared by using the “>” operator.

    E

    A single row subquery can use the IN operator.

    F

    A multiple row subquery can use the “=” operator.


    正确答案: A,D
    解析: 暂无解析

  • 第7题:

    单选题
    ()is one of functions in logistics, which can deliver goods to customer directly by order in the most economic way.
    A

    Transportation  

    B

    Distribution  

    C

    Sending goods 

    D

    carrying goods


    正确答案: D
    解析: 中文:配送是物流功能之一,它能够以最经济的方式按客户的订单配送货物给客户。

  • 第8题:

    单选题
    Which statement about access lists that are applied to an interface is true?()
    A

    you can apply multiple access lists with the same protocol or in different…

    B

    you can config one access list,per direction,per layer 3 protocol

    C

    you can placeasmanyaccess lists as you want on any interface

    D

    you can apply ony one access list on any interface


    正确答案: A
    解析: 暂无解析

  • 第9题:

    单选题
    For the following attempts, which one is to ensure that no one employee becomes a pervasive securitythreat, that data can be recovered from backups, and that information system changes do not compromisea system’s security?()
    A

    Strategic security planning

    B

    Disaster recovery

    C

    Implementation security

    D

    Operations security


    正确答案: B
    解析: 暂无解析

  • 第10题:

    单选题
    Which of the following is a storage system that can be connected to multiple servers through an iSCSI connection?()
    A

    JBOD

    B

    DAS

    C

    NAS

    D

    SAN


    正确答案: D
    解析: 暂无解析

  • 第11题:

    多选题
    Which three statements are true regarding single-row functions?()
    A

    They can accept only one argument.

    B

    They can be nested up to only two levels.

    C

    They can return multiple values of more than one data type.

    D

    They can be used in SELECT, WHERE, and ORDER BY clauses.

    E

    They can modify the data type of the argument that is referenced.

    F

    They can accept a column name, expression, variable name, or a user-supplied constant as arguments.


    正确答案: D,E
    解析: 暂无解析

  • 第12题:

    单选题
    The temperature of the fuel oil received during bunkering operation is critical in determining the ()
    A

    expansion space to leave in a tank

    B

    flash point at which the fuel will burn

    C

    temperature to which the fuel must be heated

    D

    rate at which the fuel can be pumped during transfer operations


    正确答案: D
    解析: 暂无解析

  • 第13题:

    以下()有关事件监听器的语句是正确的。

    • A、Multiple listeners can be attached to one component
    • B、Only one listener can be attached to one component
    • C、One listener can receive and process the events from multiple components
    • D、One listener can receive and process the events from only one component

    正确答案:A,C

  • 第14题:

    In the context of Advanced Power Virtualization, the shared pool refers to which of the following?()

    • A、A pool of physical memory that can be used by any partition
    • B、A pool of physical processors that can be used by any virtual or dedicated partition
    • C、A pool of physical memory that can be used by multiple Micro-Partitions
    • D、A pool of physical processors that can be used by multiple Micro-Partitions

    正确答案:D

  • 第15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,D

  • 第16题:

    Which three statements are true regarding single-row functions?()

    • A、 They can accept only one argument.
    • B、 They can be nested up to only two levels.
    • C、 They can return multiple values of more than one data type.
    • D、 They can be used in SELECT, WHERE, and ORDER BY clauses.  
    • E、 They can modify the data type of the argument that is referenced.
    • F、 They can accept a column name, expression, variable name, or a user-supplied constant as arguments.

    正确答案:D,E,F

  • 第17题:

    单选题
    Which of the following virtualization technologies can save time during provisioning?()
    A

    Cloning

    B

    Snapshots

    C

    Clustering

    D

    Virtual memory


    正确答案: A
    解析: 暂无解析

  • 第18题:

    多选题
    Which two statements are true regarding the Oracle Data Pump export and import operations()
    A

    You cannot export data from a remote database.

    B

    You can rename tables during an import operation.

    C

    You can overwrite existing dump files during an export operation.

    D

    You can compress the data during export but not the metadata because it is not supported.


    正确答案: D,A
    解析: 暂无解析

  • 第19题:

    单选题
    In the context of Advanced Power Virtualization, the shared pool refers to which of the following?()
    A

    A pool of physical memory that can be used by any partition

    B

    A pool of physical processors that can be used by any virtual or dedicated partition

    C

    A pool of physical memory that can be used by multiple Micro-Partitions

    D

    A pool of physical processors that can be used by multiple Micro-Partitions


    正确答案: A
    解析: 暂无解析

  • 第20题:

    多选题
    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 parameters 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: B,D
    解析: 暂无解析

  • 第21题:

    单选题
    For the following items ,which one can be used to authenticate the IPsec peers during IKE Phase 1?()
    A

    pre-shared key

    B

    integrity check value

    C

    XAUTH

    D

    Diffie-Hellman Nonce


    正确答案: D
    解析: 暂无解析

  • 第22题:

    多选题
    Which  statements are true regarding the Oracle Data Pump export and import operations()
    A

    You cannot export data from a remote database.

    B

    You can rename tables during an import operation.

    C

    You can overwrite existing dump files during an export operation.

    D

    You can compress the data during export but not the metadata because it is not supported


    正确答案: B,D
    解析: 暂无解析

  • 第23题:

    单选题
    Which of the following is BEST described as a storage system that can be connected to multiple servers through a fiber channel?()
    A

    JBOD

    B

    SAN

    C

    DAS

    D

    NAS


    正确答案: D
    解析: 暂无解析

  • 第24题:

    单选题
    Several @functions can execute multiple statements. Which one of the following initializes a variable and can increment in during the operation?()
    A

     @do 

    B

     @for 

    C

     @while 

    D

     @dowhile 


    正确答案: D
    解析: 暂无解析