单选题Which statements concerning the switch construct are true？（）A All switch statements must have a default label.B There must be exactly one label for each code segment in a switch statement.C The keyword continue can never occur within the body of a swit

题目
单选题
Which statements concerning the switch construct are true？（）
A

All switch statements must have a default label.

B

There must be exactly one label for each code segment in a switch statement.

C

The keyword continue can never occur within the body of a switch statement.

D

No case label may follow a default label within a single switch statement.

E

A character literal can be used as a value for a case label.

相似考题

1.All the following statements concerning the nature of language change is true except()A language change is inevitableB language change is abruptC language change is universalD language change is extensive

2.Which of these statements about FSPF is true？（）A、 It supports multipath routingB、 It can run any type of storage portsC、 When it is used， hop-by-hop routes are based only on the switch IDD、 When it is used， path status is based on the functionality of attached portsE、 It runs only on a switch fabric and cannot function in a VSAN

3.Which two statements are true regarding an Ethernet collision domain?（）A、If a switch is used, the collision domain is limited to each device and the switchB、If a hub is used, the collision domain is limited to each device and the hubC、If a hub is used, the collision domain includes all devices connected to the hubD、If a switch is used, the collision domain includes all devices connected to the switch

4.Which statements concerning the switch construct are true？（）  A、All switch statements must have a default label.B、There must be exactly one label for each code segment in a switch statement.C、The keyword continue can never occur within the body of a switch statement.D、No case label may follow a default label within a single switch statement.E、A character literal can be used as a value for a case label.

更多“Which statements concerning the switch construct are true？（）”相关问题

  • 第1题：

    Which statements are true concerning NAT？ （）

    • A、 NAT provides 1 to manyaddress mapping.
    • B、 NAT provides 1 to 1 address mapping.
    • C、 NAT is only useful forTCP/UDP and ICMP traffic.
    • D、 NAT can be used for all IP traffic.

    正确答案:B,D

  • 第2题：

    Which two statements about the use of VLANs to segment a network are true? （）

    • A、VLANs increase the size of collision domains.
    • B、VLANs allow logical grouping of users by function.
    • C、VLANs simplify switch administration.
    • D、VLANs enhance network security.

    正确答案:B,D

  • 第3题：

    Which two statements are true regarding an Ethernet collision domain?（）

    • A、If a switch is used, the collision domain includes all devices connected to the switch.
    • B、If a hub is used, the collision domain includes all devices connected to the hub.
    • C、If a hub is used, the collision domain is limited to each device and the hub.
    • D、If a switch is used, the collision domain is limited to each device and the switch.

    正确答案:B,D

  • 第4题：

    多选题
    Concerning the figure below, if a =b, which of the following statements must be true? (Indicate all such statements.)
    A

    c=d

    B

    l and k are parallel

    C

    m and l are perpendicular


    正确答案： C,B
    解析：
    根据题目中的已知信息无法推断出各直线的关系，因此B、C均不正确；而由图示可知，c和d分别是a和b的补角，由于a=b，所以c=d，A项正确。

  • 第5题：

    单选题
    Which of these statements about FSPF is true？（）
    A

     It supports multipath routing

    B

     It can run any type of storage ports

    C

     When it is used， hop-by-hop routes are based only on the switch ID

    D

     When it is used， path status is based on the functionality of attached ports

    E

     It runs only on a switch fabric and cannot function in a VSAN


    正确答案： C
    解析： 暂无解析

  • 第6题：

    单选题
    Which of the following statements is true concerning the cetane number of diesel fuel?（）
    A

    The cetane number affects the amount of injection lag

    B

    The cetane number is an indication of the fuels viscosity

    C

    Ignition lag is reduced with fuels having a high cetane number

    D

    The cetane number is of little significance in the combustion process


    正确答案： D
    解析： 暂无解析

  • 第7题：

    单选题
    Which of the following statements is true concerning an oil cooler?（）
    A

    The oil temperature is less than the cooling water temperature

    B

    The oil pressure is less than the cooling water pressure

    C

    The oil pressure is greater than the cooling water pressure

    D

    The oil flow control valve is always installed in the oil input line


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    Which of the following statements is true concerning simple parallel resistance circuits?（）
    A

    The total current flow equals the sum of the individual currents

    B

    The total current flow equals the reciprocal of the sum of the individual currents

    C

    The total resistance equals the sum of the individual resistance

    D

    The total voltage equals the sum of the individual voltages across each resistance


    正确答案： A
    解析： 暂无解析

  • 第9题：

    多选题
    Which two statements are true regarding an Ethernet collision domain?（）
    A

    The likelihood of collisions occurring increases when a switch is used.

    B

    The likelihood of collisions occurring increases when a hub is used.

    C

    If a hub is used, the collision domain is limited to each device and the hub.

    D

    If a switch is used, the collision domain is limited to each device and the switch.


    正确答案： A,D
    解析： 暂无解析

  • 第10题：

    When comparing and contrasting the similarities and differences between bridges and switches, which of the following are valid statements?（）

    • A、Bridges are faster than switches because they have fewer ports.
    • B、A switch is a multiport bridge,
    • C、Bridges and switches learn MAC addresses by examining the source MAC address of each frame received.
    • D、A bridge will forward a broadcast but a switch will not.
    • E、Bridges and switches increase the size of a collision domain.
    • F、None of the above statements are true.

    正确答案:B,C

  • 第11题：

    Which of these statements concerning the collection interfaces are true？（）  

    • A、Set extends Collection.
    • B、All methods defined in Set are also defined in Collection.
    • C、List extends Collection.
    • D、All methods defined in List are also defined in Collection.
    • E、Map extends Collection.

    正确答案:A,B,C

  • 第12题：

    Which two statements are true regarding an Ethernet collision domain?（）

    • A、The likelihood of collisions occurring increases when a switch is used.
    • B、The likelihood of collisions occurring increases when a hub is used.
    • C、If a hub is used, the collision domain is limited to each device and the hub.
    • D、If a switch is used, the collision domain is limited to each device and the switch.

    正确答案:B,D

  • 第13题：

    单选题
    Which of the following statements is true concerning centrifugal pumps?（）
    A

    They are particularly suited for pumping high viscosity fluids

    B

    They are started with the discharge valve opened

    C

    The flow of liquid is developed by imparting energy due to the rotation of an impeller

    D

    They are always mounted in a horizontal position


    正确答案： C
    解析： 暂无解析

  • 第14题：

    单选题
    Which of the following statements is true concerning any evaporator?（）
    A

    High conductivity of the distillate indicates distillate salinity is excessive

    B

    Increasing the absolute pressure of the shell will increase the distillers capacity

    C

    Mesh separators are used in evaporators to filter the distillate

    D

    Reducing the brine density will reduce the heat lost overboard


    正确答案： D
    解析： 暂无解析

  • 第15题：

    单选题
    Which statements concerning the switch construct are true？（）
    A

    All switch statements must have a default label.

    B

    There must be exactly one label for each code segment in a switch statement.

    C

    The keyword continue can never occur within the body of a switch statement.

    D

    No case label may follow a default label within a single switch statement.

    E

    A character literal can be used as a value for a case label.


    正确答案： A
    解析： 暂无解析

  • 第16题：

    多选题
    Which two statements are true regarding an Ethernet collision domain?（）
    A

    If a switch is used, the collision domain is limited to each device and the switch

    B

    If a hub is used, the collision domain is limited to each device and the hub

    C

    If a hub is used, the collision domain includes all devices connected to the hub

    D

    If a switch is used, the collision domain includes all devices connected to the switch


    正确答案： A,B
    解析： 暂无解析

  • 第17题：

    多选题
    Which two statements are true regarding an Ethernet collision domain?（）
    A

    If a switch is used, the collision domain is limited to each device and the switch.

    B

    If a hub is used, the collision domain is limited to each device and the hub.

    C

    If a hub is used, the collision domain includes all devices connected to the hub.

    D

    If a switch is used, the collision domain includes all devices connected to the switch.


    正确答案： C,A
    解析： 暂无解析

  • 第18题：

    单选题
    Which of the following statements is true concerning Halon 1301 fire extinguishing equipment?（）
    A

    The agent is considered nontoxic at room temperature in low concentrations

    B

    The agent is less effective than carbon dioxide

    C

    Halon primarily extinguishes the fire by cooling

    D

    The agent cannot be used on electrical fires because it leaves a residue


    正确答案： B
    解析： 暂无解析

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