What type of constraint is used to ensure that each row inserted into the EMPLOYEE table with a value in the WORKDEPT column has a row with a corresponding value in the DEPTNO column of the DEPARTMENT table?（）A、A check constraint on the EMPLOYEE tableB、A

题目

What type of constraint is used to ensure that each row inserted into the EMPLOYEE table with a value in the WORKDEPT column has a row with a corresponding value in the DEPTNO column of the DEPARTMENT table?（）

  • A、A check constraint on the EMPLOYEE table
  • B、A unique constraint on the EMPLOYEE table WORKDEPT column
  • C、A foreign key reference from the DEPARTMENT tables DEPTNO column to the WORKDEPT column of the EMPLOYEE table
  • D、A foreign key reference from the EMPLOYEE tables WORKDEPT column to the DEPTNO column of the DEPARTMENT table
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1.What type of extinguisher should be used for an electric fire? ________A.CO2B.FormC.WaterD.Water and Form

2.What term is used to describe the process where one frame is placed into a different type of frame?()A. FramingB. De-encapsulationC. EncapsulationD. De-framingE. None of the above

3.When selecting a Network Interface Card (NIC), which of the following factors need to be considered?()A. The type of application used on the networkB. The type of system bus used by the computersC. The type of memory installed in each computerD. The type of media used in the network topologyE. The type of protocols used in the networkF. The physical layout of the network hosts

4.What type of constraint can be used to ensure that, in any given row in a table, the value of one column never exceeds the value of another column?()A.CheckB.RangeC.ReferentialD.Informational

更多“What type of constraint is used ”相关问题

  • 第1题：

    What term is used to describe the process where one frame is placed into a different type of frame?（）

    • A、Framing
    • B、De-encapsulation
    • C、Encapsulation
    • D、De-framing
    • E、None of the above

    正确答案:C

  • 第2题：

    What OSPF LSA is used to support MPLS-traffic Engineering ？（）

    • A、External LSA （Type 5 ）
    • B、Opaque LSA （Type 9 ）
    • C、Opaque LSA （Type 10 ）
    • D、Opaque LSA （Type 11 ）
    • E、NSSA LSA （Type 7 ）

    正确答案:C

  • 第3题：

    When selecting a Network Interface Card (NIC), which of the following factors need to be considered?（）

    • A、The type of application used on the network
    • B、The type of system bus used by the computers
    • C、The type of memory installed in each computer
    • D、The type of media used in the network topology
    • E、The type of protocols used in the network
    • F、The physical layout of the network hosts

    正确答案:B,D,F

  • 第4题：

    What does the FREQ column show when running the tprof option? （）

    • A、Total amount of Ticks used by all users
    • B、Total amount of Ticks used by all processes
    • C、Total amount of Ticks used by a specific user
    • D、Total amount of Ticks used by a specific type of process

    正确答案:D

  • 第5题：

    Examine the following statement that is used to modify the constraint on the SALES table： SQL> ALTER TABLE SALES MODIFY CONSTRAINT pk DISABLE VALIDATE； Which three statements are true regarding the above command（）

    • A、The constraint remains valid.
    • B、The index on the constraint is dropped.
    • C、It allows the loading of data into the table using SQL*Loader.
    • D、New data conforms to the constraint， but existing data is not checked
    • E、It allows the data manipulation on the table using INSERT/UPDATE/DELETE SQL statements.

    正确答案:A,B,C

  • 第6题：

    单选题
    In the Configuration Manager， under the WebSphere Commerce Instance Properties， what is the Payments panel used for？ It allows an Administrator to：（）
    A

    drop and re-create the WebSphere Commerce Payments database.

    B

    stop and start the Payment Engine.

    C

    configure WebSphere Commerce Server communication with WebSphere Commerce Payments Server.

    D

    specify what type of Database software will be used for the WebSphere Commerce Payments database.


    正确答案： D
    解析： 暂无解析

  • 第7题：

    单选题
    In form-based authentication， what must be included in the HTML returned from the URL specified by the  element？（）
    A

     a base-64 encoded user name and password

    B

     a form that POSTs to the j_security_check URL

    C

     an applet that requests the user name and password from the user

    D

     a hidden field that supplies the login-constraint used by the application


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    What term is used to describe the process where one frame is placed into a different type of frame?（）
    A

    Framing

    B

    De-encapsulation

    C

    Encapsulation

    D

    De-framing

    E

    None of the above


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    What type of rotor is used in split-phase motors?（）
    A

    Dram

    B

    Salient pole

    C

    Squirrel-cage

    D

    Wound-rotor


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    What authentication type is used by SNMPv2?（）
    A

    HMAC-MD5

    B

    HMAC-SHA

    C

    CBC-DES

    D

    community strings


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    What type of electric motor is most commonly used on board ship?（）
    A

    non-synchronous electric motor

    B

    synchronous electric motor

    C

    fully enclosed electric motor

    D

    watertight electric motor


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    What does the FREQ column show when running the tprof option?（）
    A

     Total amount of Ticks used by all users 

    B

     Total amount of Ticks used by all processes 

    C

     Total amount of Ticks used by a specific user 

    D

     Total amount of Ticks used by a specific type of process


    正确答案： C
    解析： 暂无解析

  • 第13题：

    You are a senior network administrator at TestKing, and while performing thepassword recovery procedure on your 2500 series Cisco router, you type in thefollowing command:o/r 0x2142What is the purpose of this command?（）

    • A、It is used to restart the router.
    • B、It is used to bypass the configuration in NVRAM.
    • C、It is used to enter ROM Monitor mode.
    • D、It is used to view the lost password.
    • E、It is used to save the changes to the configuration.

    正确答案:B

  • 第14题：

    What does the FREQ column show when running the tprof option?（）

    • A、 Total amount of Ticks used by all users 
    • B、 Total amount of Ticks used by all processes 
    • C、 Total amount of Ticks used by a specific user 
    • D、 Total amount of Ticks used by a specific type of process

    正确答案:D

  • 第15题：

    Which of the following database objects can be used to raise an error if a table is updated?（）

    • A、Package
    • B、Trigger
    • C、Stored Procedure
    • D、Informational Constraint

    正确答案:B

  • 第16题：

    In form-based authentication， what must be included in the HTML returned from the URL specified by the  element？（）

    • A、 a base-64 encoded user name and password
    • B、 a form that POSTs to the j_security_check URL
    • C、 an applet that requests the user name and password from the user
    • D、 a hidden field that supplies the login-constraint used by the application

    正确答案:B

  • 第17题：

    单选题
    You are a senior network administrator at TestKing, and while performing thepassword recovery procedure on your 2500 series Cisco router, you type in thefollowing command:o/r 0x2142What is the purpose of this command?（）
    A

    It is used to restart the router.

    B

    It is used to bypass the configuration in NVRAM.

    C

    It is used to enter ROM Monitor mode.

    D

    It is used to view the lost password.

    E

    It is used to save the changes to the configuration.


    正确答案： B
    解析： 暂无解析

  • 第18题：

    多选题
    You need to design the storage of the loan response message. Which actions or actions should you perform?（）
    A

    Use the xml data type to store the message.

    B

    Use a user-defined data type to store the message.

    C

    Use the nvarchar（max） data type to store the message.

    D

    Use a check constraint to validate that the correct tags are used.

    E

    Use an XML schema definition （XSD） to validate that the correct tags are used.

    F

    Use a foreign key constraint to validate that the correct tags are used.


    正确答案： A,E
    解析： 暂无解析

  • 第19题：

    多选题
    When selecting a Network Interface Card (NIC), which of the following factors need to be considered?（）
    A

    The type of application used on the network

    B

    The type of system bus used by the computers

    C

    The type of memory installed in each computer

    D

    The type of media used in the network topology

    E

    The type of protocols used in the network

    F

    The physical layout of the network hosts


    正确答案： B,E
    解析： 暂无解析

  • 第20题：

    单选题
    What type of constraint can be used to ensure that, in any given row in a table, the value of one column never exceeds the value of another column?（）
    A

    Check

    B

    Range

    C

    Referential

    D

    Informational


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    What OSPF LSA is used to support MPLS-traffic Engineering ？（）
    A

    External LSA （Type 5 ）

    B

    Opaque LSA （Type 9 ）

    C

    Opaque LSA （Type 10 ）

    D

    Opaque LSA （Type 11 ）

    E

    NSSA LSA （Type 7 ）


    正确答案： E
    解析： 暂无解析

  • 第22题：

    单选题
    What type of liquid is used in the liquid P/V breaker（）.
    A

    Hydraulic oil

    B

    Water-antifreeze mixture

    C

    Distilled water

    D

    Oil from the cargo


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    What type of constraint is used to ensure that each row inserted into the EMPLOYEE table with a value in the WORKDEPT column has a row with a corresponding value in the DEPTNO column of the DEPARTMENT table?（）
    A

    A check constraint on the EMPLOYEE table

    B

    A unique constraint on the EMPLOYEE table WORKDEPT column

    C

    A foreign key reference from the DEPARTMENT tables DEPTNO column to the WORKDEPT column of the EMPLOYEE table

    D

    A foreign key reference from the EMPLOYEE tables WORKDEPT column to the DEPTNO column of the DEPARTMENT table


    正确答案： B
    解析： 暂无解析

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