单选题What information is used by a switch to forward an Ethernet frame to its destination?（）A IP addressB destination MAC addressC ARP table entryD FCS checksum

题目
单选题
What information is used by a switch to forward an Ethernet frame to its destination?（）
A

IP address

B

destination MAC address

C

ARP table entry

D

FCS checksum

相似考题

1.A Ezonexam Ethernet switch receives a unicast frame. with a destination MAC that is listed in the switch table. What will this switch do with the frame?A. The switch will forward the frame. to a specific portB. The switch will forward the frame. to all ports except the port on which it was receivedC. The switch will return a copy of the frame. out the source portD. The switch will not forward unicast framesE. The switch will remove the destination MAC from the switch tableF. None of the above.

2.What information is used by a switch to forward an Ethernet frame to its destination?()A. IP addressB. destination MAC addressC. ARP table entryD. FCS checksum

3.Inverse ARP is being used in the TestKing frame relay network. What is the purpose of Inverse ARP?()A. To ma a known IP address to a MAC addressB. To map a known DLCI to a MAC addressC. To ma a known MAC address to an IP addressD. To ma a known DLCI address to a IP addressE. To ma a known IP address to a SPID addressF. To ma a known SPID address to a MAC address

4.●When a bridge transmits an Ethernet frame, the Ethernet frame. has(75).(75)A. the broadcast address for the its source addressB. the bridge's LAN address for its destination addressC. the bridge's LAN address for its source addressD. none of the above

更多“单选题What information is used by a switch to forward an Ethernet frame to its destination?（）A IP addressB destination MAC addressC ARP table entryD FCS checksum”相关问题

  • 第1题：

    Which of one the following fields is contained within an IEEE Ethernet frame header?()

    A. source and destination MAC address

    B. source MAC address and destination network address only

    C. source and destination network address only

    D. source network address and destination MAC address

    E. source and destination MAC address and source and destination network address


    参考答案：A

  • 第2题：

    What does a Layer 2 switch do if it receives a frame with a destination MAC address that is not found in its MAC address table?()

    A. The frame is dropped.

    B. The frame is addressed with a broadcast MAC address and sent out all ports.

    C. The frame is sent out all ports except the receiving port.

    D. An ARP request is sent out all ports except the receiving port.

    E. A destination unreachable message is sent back to the source address.

    F. None of the above.


    参考答案：C

  • 第3题：

    If the router R1 has a packet with a destination address 192.168.1.255, what describes the operation of the network()。

    A.R1 will forward the packet out all interfaces.

    B.R1 will drop this packet because this it is not a valid IP address.

    C.As R1 forwards the frame containing this packet, Sw-A will add 192.168.1.255 to its MAC table.

    D.R1 will encapsulate the packet in a frame with a destination MAC address of FF-FF-FF-FF-FF-FF

    E.As R1 forwards the frame containing this packet, Sw-A will forward it to the device assigned the IP address of 192.168.1.255.


    参考答案：B

  • 第4题：

    What three pieces of information can be used in an extended access list to filter traffic (Choose three.)()。

    A.protocol

    B.VLAN number

    C.TCP or UDP port numbers

    D.source switch port number

    E.source IP address and destination IP address

    F.source MAC address and destination MAC address


    参考答案：A, C, E

  • 第5题：

    Inverse ARP is being used in the TestKing frame relay network. What is the purpose of Inverse ARP?（）

    • A、To ma a known IP address to a MAC address
    • B、To map a known DLCI to a MAC address
    • C、To ma a known MAC address to an IP address
    • D、To ma a known DLCI address to a IP address
    • E、To ma a known IP address to a SPID address
    • F、To ma a known SPID address to a MAC address

    正确答案:D

  • 第6题：

    What information is used by a switch to forward an Ethernet frame to its destination?（）

    • A、IP address
    • B、destination MAC address
    • C、ARP table entry
    • D、FCS checksum

    正确答案:B

  • 第7题：

    What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table?（）

    • A、The switch will not forward unicast frames.
    • B、The switch will forward the frame to a specific port.
    • C、The switch will return a copy of the frame out the source port.
    • D、The switch will remove the destination MAC from the switch table.
    • E、The switch will forward the frame to all ports except the port on which it was received.

    正确答案:B

  • 第8题：

    Which Ethernet field is used to differentiate between the FCoE frame and the FIP frame？（）

    • A、 Ethernet FCS
    • B、 Source address
    • C、 Destination address
    • D、 EtherType
    • E、 Protocol type

    正确答案:D

  • 第9题：

    What are two characteristics of "store and forward" switching?（）

    • A、Latency fluctuates regardless of frame size.
    • B、The switch receives the complete frame before beginning to forward it.
    • C、Latency through the switch varies with frame length.
    • D、The switch checks the destination address upon receipt of headers.

    正确答案:B,C

  • 第10题：

    多选题
    What three pieces of information can be used in an extended access list to filter traffic (Choose three.)（）。
    A

    protocol

    B

    VLAN number

    C

    TCP or UDP port numbers

    D

    source switch port number

    E

    source IP address and destination IP address

    F

    source MAC address and destination MAC address


    正确答案： B,A
    解析： 暂无解析

  • 第11题：

    单选题
    Which of one the following fields is contained within an IEEE Ethernet frame header?（）
    A

    source and destination MAC address

    B

    source MAC address and destination network address only

    C

    source and destination network address only

    D

    source network address and destination MAC address

    E

    source and destination MAC address and source and destination network address


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    What information is used by a switch to forward an Ethernet frame to its destination?（）
    A

    IP address

    B

    destination MAC address

    C

    ARP table entry

    D

    FCS checksum


    正确答案： A
    解析： 暂无解析

  • 第13题：

    What does a Layer 2 switch use to decide where to forward a received frame?()

    A. source MAC address

    B. source IP address

    C. source switch port

    D. destination IP address

    E. destination port address

    F. destination MAC address


    参考答案：F

  • 第14题：

    What are three values that must be the same within a sequence of packets for Netflow to consider them a network flow?()

    A.source IP address

    B.source MAC address

    C.egress interface

    D.ingress interface

    E.destination IP address

    F.IP next-hop


    参考答案：A, D, E

  • 第15题：

    What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table()。

    A.The switch will not forward unicast frames.

    B.The switch will forward the frame to a specific port.

    C.The switch will return a copy of the frame out the source port.

    D.The switch will remove the destination MAC from the switch table.

    E.The switch will forward the frame to all ports except the port on which it was received.


    参考答案：B

  • 第16题：

    What are three values that must be the same within a sequence of packets for Netflow to consider them a network flow?（）

    • A、source IP address
    • B、source MAC address
    • C、egress interface
    • D、ingress interface
    • E、destination IP address
    • F、IP next-hop

    正确答案:A,D,E

  • 第17题：

    The EtherChannel between your LAN switch and the Internet router is not load-balancing efficiently. On the switch，there are several workstations with valid IP ranges. Which load-balance algorithms can you use in the switch in order to optimize this load balancing？ （）

    • A、source IP address
    • B、destination IP address
    • C、per-packet load balance
    • D、destination MAC address
    • E、source MAC address

    正确答案:A,B,D,E

  • 第18题：

    What does a Layer 2 switch use to decide where to forward a received frame?（）

    • A、source MAC address
    • B、source IP address
    • C、source switch port
    • D、destination IP address
    • E、destination port address
    • F、destination MAC address

    正确答案:F

  • 第19题：

    What three pieces of information can be used in an extended access list to filter traffic (Choose three.)（）。

    • A、protocol
    • B、VLAN number
    • C、TCP or UDP port numbers
    • D、source switch port number
    • E、source IP address and destination IP address
    • F、source MAC address and destination MAC address

    正确答案:A,C,E

  • 第20题：

    Which of one the following fields is contained within an IEEE Ethernet frame header?（）

    • A、source and destination MAC address
    • B、source MAC address and destination network address only
    • C、source and destination network address only
    • D、source network address and destination MAC address
    • E、source and destination MAC address and source and destination network address

    正确答案:A

  • 第21题：

    单选题
    What does a Layer 2 switch do if it receives a frame with a destination MAC address that is not found in its MAC address table?（）
    A

    The frame is dropped.

    B

    The frame is addressed with a broadcast MAC address and sent out all ports.

    C

    The frame is sent out all ports except the receiving port.

    D

    An ARP request is sent out all ports except the receiving port.

    E

    A destination unreachable message is sent back to the source address.

    F

    None of the above.


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table?（）
    A

    The switch will not forward unicast frames.

    B

    The switch will forward the frame to a specific port.

    C

    The switch will return a copy of the frame out the source port.

    D

    The switch will remove the destination MAC from the switch table.

    E

    The switch will forward the frame to all ports except the port on which it was received.


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    Which Ethernet field is used to differentiate between the FCoE frame and the FIP frame？（）
    A

     Ethernet FCS

    B

     Source address

    C

     Destination address

    D

     EtherType

    E

     Protocol type


    正确答案： C
    解析： 暂无解析

  • 第24题：

    单选题
    If the router R1 has a packet with a destination address 192.168.1.255, what describes the operation of the network（）。
    A

    R1 will forward the packet out all interfaces.

    B

    R1 will drop this packet because this it is not a valid IP address.

    C

    As R1 forwards the frame containing this packet, Sw-A will add 192.168.1.255 to its MAC table.

    D

    R1 will encapsulate the packet in a frame with a destination MAC address of FF-FF-FF-FF-FF-FF

    E

    As R1 forwards the frame containing this packet, Sw-A will forward it to the device assigned the IP address of 192.168.1.255.


    正确答案： A
    解析： 暂无解析

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