单选题How does a switch respond when it receives a message?（）A It reads the Layer-5 information and sends the message directly to the intended computer.B It reads the Media Access Control (MAC) address and sends the message directly to the intended computer.

题目
单选题
How does a switch respond when it receives a message?（）
A

It reads the Layer-5 information and sends the message directly to the intended computer.

B

It reads the Media Access Control (MAC) address and sends the message directly to the intended computer.

C

It reads the Layer-5 information and broadcasts the message to all the computers that are connected to the switch.

D

It reads the Media Access Control (MAC) address and broadcasts the message to all the computers that are connected to the switch.

相似考题

1.Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true? (Select two answer choices)A. The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.B. The DHCP Discover message uses UDP as the transport layer protocol.C. The DHCP Discover message uses a special Layer 2 multicast address as the destination address.D. The DHCP Discover message uses TCP as the transport layer protocol.E. The DHCP Discover message does not use a Layer 2 destination address.F. The DHCP Discover message does not require a transport layer protocol.

2.A router receives a packet from a neighbor with an MPLS shim header value of 0.What does the router do with this packet?()A. It performs a label pop operation and an IP lookup.B. It performs a label swap operation and an IP lookup.C. It sends an error message toward the egress router.D. It sends an error message toward the ingress router.

3.Which action does a BGP speaker take when it detects that the reset state bit is set in an openmessage?()A. It tears down the BGP session.B. It sends a restart message to the peer.C. It marks all routes from that peer as stale.D. It sends a BGP refresh message to the peer

4.Communication is not merely a matter of a speaker forming a thought in language and sending it as spoken message through space, or as a written message on paper, to a listener or reader who listens to or reads it.()

更多“单选题How does a switch respond when it receives a message?（）A It reads the Layer-5 information and sends the message directly to the intended computer.B It reads the Media Access Control (MAC) address and sends the message directly to the intended computer.”相关问题

  • 第1题：

    IP multicasting is a set of technologies that enable efficient delivery of data to many locations on a network. Rather than making multiple copies of a message intended to be distributed to multiple recipients at the(71) of origin of a message, multicasting initially sends just one(72) and does not copy it to the individual recipients until it reaches the closest common point on the network, thereby(73) the bandwidth consumed. Network performance is significantly(74) because it isn't bogged down with the processing and transmission of several large data fries; each receiving computer doesn't have to(75) the transmitting server for the file.

    A．point

    B．bottom

    C．head

    D．sight


    正确答案：A

  • 第2题：


    38、【单项选择题】
    ☆
    收藏本题

    IP multicasting is a set of technologies that enable efficient delivery of data to many locations on a network. Rather than making multiple copies of a message intended to be distributed to multiple recipients at the （） of origin of a message, multicasting initially sends just one （） and does not copy it to the individual recipients until it reaches the closest common point on the network, thereby （） the bandwidth consumed. Network performance is significantly （） because it isn’t bogged down with the processing and transmission of several large data files; each receiving computer doesn’t have to （） the transmitting server for the file.

    A.extending
    B.minimizing
    C.demolishing
    D.reducing

    答案：B
    解析：
    参考译文：IP多播是允许同时给网络上很多主机提供数据的一种技术。它并不是每次复制很多副本去发送给每一个在这个IP多播组中的接收者，而是最初只发送单一信息，并没有立即复制信息去发给每个接收者，而是直到到达网络中最近的一个共通点时才开始复制，从而最大限度地减少了对带宽的消耗。网络的性能明显得到改善，一是因为它没有立即处理和传输几个大型数据文件；二是接收端计算机不需要查询该传输服务的文件。

  • 第3题：

    IP
    multicasting is a set of technologies that enable efficient delivery of
    data to many locations on a network. Rather than making multiple copies
    of a message intended to be distributed to multiple recipients at the （） of origin of a message, multicasting initially sends just one （） and does not copy it to the individual recipients until it reaches the closest common point on the network, thereby （） the bandwidth consumed. Network performance is significantly （） because it isn’t bogged down with the processing and transmission of several large data files; each receiving computer doesn’t have to （） the transmitting server for the file.

    A.entity
    B.procession
    C.volume
    D.message

    答案：D
    解析：
    参考译文：IP多播是允许同时给网络上很多主机提供数据的一种技术。它并不是每次复制很多副本去发送给每一个在这个IP多播组中的接收者，而是最初只发送单一信息，并没有立即复制信息去发给每个接收者，而是直到到达网络中最近的一个共通点时才开始复制，从而最大限度地减少了对带宽的消耗。网络的性能明显得到改善，一是因为它没有立即处理和传输几个大型数据文件；二是接收端计算机不需要查询该传输服务的文件。

  • 第4题：

    Anytime a host or a router has an IP datagram to send to another host or router, it has the（　）address of the receiver. This address is obtained from the DNS if the sender is the host or it is found in a routing table if the sender is a router. But the IP data gram must be（　） in a frame to be able to pass through the physical network. This means that the sender needs the （　）address of the receiver. The host or the router sends an ARP query packet. The packet includes the physical and IP addresses of the sender and the IP address of the receiver. Because the sender does not know the physical address of the receiver, the query is（　） over the network.Every host or router on the network receives and processes the ARP query packet, but only the intended recipient recognizes its IP address and sends back an ARP response packet.The response packet contains the recipient's IP and physical addresses. The packet is（请作答此空） directly to the inquirer by using the physical address received in the query packet.

    A. multicast
    B. unicast
    C. broadcast
    D. multiple unicast

    答案：B
    解析：
    任何时候主机或路由器要发送 IP 数据报发送给另一主机或路由器时，都需要知道接收方的逻辑地址。发送主机从 DNS 获得该地址，发送路由器则在路由表中找到该地址。但 IP 数据报必须封装在帧中才能通过物理网络。这意味着发送者需要知道接收者的物理地址。主机或路由器需发送 ARP 查询报文，该报文分组包含发送者的物理地址和 IP 地址及接收者的 IP 地址。这是因为送者不知道接收者的物理地址，所以需在全网广播报文。网络上的每个主机或路由器都能接收并处理该 ARP 查询报文，但只有预期的接收者识别其 IP 地址并响应该 ARP 报文。响应报文包含接收者的 IP 地址和物理地址。包含了接收者物理地址的响应报文分组通过单播的方式直接发送给发送者。

  • 第5题：

    A router receives a packet from a neighbor with an MPLS shim header value of 0.What does the router do with this packet?（）

    • A、It performs a label pop operation and an IP lookup.
    • B、It performs a label swap operation and an IP lookup.
    • C、It sends an error message toward the egress router.
    • D、It sends an error message toward the ingress router.

    正确答案:A

  • 第6题：

    How does a switch respond when it receives a message?（）

    • A、It reads the Layer-5 information and sends the message directly to the intended computer.
    • B、It reads the Media Access Control (MAC) address and broadcasts the message to all the computers that are connected to the switch.
    • C、It reads the Media Access Control (MAC) address and sends the message directly to the intended computer.
    • D、It reads the Layer-5 information and broadcasts the message to all the computers that are connected to the switch.

    正确答案:C

  • 第7题：

    Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?（）

    • A、The ERX router sends an Active Discovery Offer message.
    • B、The ERX router sends an Active Discovery Initiation message.
    • C、The customer device sends an Active Discovery Offer message.
    • D、The customer device sends an Active Discovery Initiation message

    正确答案:D

  • 第8题：

    How are messages displayed when you use the SRW.MESSAGE packaged procedure? （）

    • A、Dialogue box that implicitly determines report execution. 
    • B、Message line that implicitly determines report execution. 
    • C、Message line that suppresses the default oracle message. 
    • D、Dialogue box that does not terminate report execution. 
    • E、Dialogue box that suppresses the default oracle message.

    正确答案:D

  • 第9题：

    单选题
    A router receives an IPv6 packet which is 2000 bytes in length. The MTU of the outgoing interface is 1500 bytes. What action will the router take？（）
    A

    forwards the packet

    B

    fragments the packet

    C

    drops the packet silently

    D

    drops the packet and sends an ICMP message


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Which statement describes multihop FCoE function when an FCoE switch receives an FCoE frame from the directly connected FCoE host？（）
    A

     The switch receives the FCoE frame and forwards it to another switch over its VE port.

    B

     The switch receives the FCoE frame， deapsulates it， and sends the Fibre Channel frame to the fabric over its Fibre Channel uplink port.

    C

     The switch receives the FCoE frame， deapsulates it， and sends the Fibre Channel frame to the Fibre Channel target over its Fibre Channel port.

    D

     The switch receives the FCoE frame and forwards it to another FCoE device over its VN port.


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?（）
    A

    The ERX router sends an Active Discovery Off ermessage.

    B

    The ERX router sendsan Active Discovery Initiation message.

    C

    The customer device sends an Active Discovery Offer message.

    D

    The customer device sends an Active Discovery Initiation message.


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    A router receives a packet from a neighbor with an MPLS shim header value of 0.What does the router do with this packet?（）
    A

    It performs a label pop operation and an IP lookup.

    B

    It performs a label swap operation and an IP lookup.

    C

    It sends an error message toward the egress router.

    D

    It sends an error message toward the ingress router.


    正确答案： C
    解析： 暂无解析

  • 第13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14题：

    IP multicasting is a set of technologies that enable efficient delivery of data to many locations on a network. Rather than making multiple copies of a message intended to be distributed to multiple recipients at the （） of origin of a message, multicasting initially sends just one （） and does not copy it to the individual recipients until it reaches the closest common point on the network, thereby （） the bandwidth consumed. Network performance is significantly （） because it isn’t bogged down with the processing and transmission of several large data files; each receiving computer doesn’t have to （） the transmitting server for the file.

    A.loop
    B.find
    C.search
    D.query

    答案：D
    解析：
    参考译文：IP多播是允许同时给网络上很多主机提供数据的一种技术。它并不是每次复制很多副本去发送给每一个在这个IP多播组中的接收者，而是最初只发送单一信息，并没有立即复制信息去发给每个接收者，而是直到到达网络中最近的一个共通点时才开始复制，从而最大限度地减少了对带宽的消耗。网络的性能明显得到改善，一是因为它没有立即处理和传输几个大型数据文件；二是接收端计算机不需要查询该传输服务的文件。

  • 第15题：

    IP multicasting is a set of technologies that enable efficient delivery of data to many locations on a network. Rather than making multiple copies of a message intended to be distributed to multiple recipients at the （请作答此选项） of origin of a message, multicasting initially sends just one （ ） and does not copy it to the individual recipients until it reaches the closest common point on the network, thereby （ ） the bandwidth consumed. Network performance is significantly （ ） because it isn’t bogged down with the processing and transmission of several large data files; each receiving computer doesn’t have to （ ） the transmitting server for the file.

    A.point
    B.bottom
    C. heaD.
    D.sight

    答案：A
    解析：
    参考译文：IP多播是允许同时给网络上很多主机提供数据的一种技术。它并不是每次复制很多副本去发送给每一个在这个IP多播组中的接收者，而是最初只发送单一信息，并没有立即复制信息去发给每个接收者，而是直到到达网络中最近的一个共通点时才开始复制，从而最大限度地减少了对带宽的消耗。网络的性能明显得到改善，一是因为它没有立即处理和传输几个大型数据文件；二是接收端计算机不需要查询该传输服务的文件。

  • 第16题：

    Which statement describes multihop FCoE function when an FCoE switch receives an FCoE frame from the directly connected FCoE host？（）

    • A、 The switch receives the FCoE frame and forwards it to another switch over its VE port.
    • B、 The switch receives the FCoE frame， deapsulates it， and sends the Fibre Channel frame to the fabric over its Fibre Channel uplink port.
    • C、 The switch receives the FCoE frame， deapsulates it， and sends the Fibre Channel frame to the Fibre Channel target over its Fibre Channel port.
    • D、 The switch receives the FCoE frame and forwards it to another FCoE device over its VN port.

    正确答案:A

  • 第17题：

    Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true?（）

    • A、The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.
    • B、The DHCP Discover message uses UDP as the transport layer protocol.
    • C、The DHCP Discover message uses a special Layer 2 multicast address as the destination address.
    • D、The DHCP Discover message uses TCP as the transport layer protocol.
    • E、The DHCP Discover message does not use a Layer 2 destination address.
    • F、The DHCP Discover message does not require a transport layer protocol.

    正确答案:A,B

  • 第18题：

    Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?（）

    • A、The ERX router sends an Active Discovery Off ermessage.
    • B、The ERX router sendsan Active Discovery Initiation message.
    • C、The customer device sends an Active Discovery Offer message.
    • D、The customer device sends an Active Discovery Initiation message.

    正确答案:D

  • 第19题：

    Which action does a BGP speaker take when it detects that the reset state bit is set in an openmessage?（）

    • A、It tears down the BGP session.
    • B、It sends a restart message to the peer.
    • C、It marks all routes from that peer as stale.
    • D、It sends a BGP refresh message to the peer

    正确答案:C

  • 第20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21题：

    单选题
    What keywords do you need to the access-list to provide to the logging message like source address and source mac address？（）
    A

    Log

    B

    Log-input

    C

    Log-output

    D

    Logging


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Which action does a BGP speaker take when it detects that the reset state bit is set in an openmessage?（）
    A

    It tears down the BGP session.

    B

    It sends a restart message to the peer.

    C

    It marks all routes from that peer as stale.

    D

    It sends a BGP refresh message to the peer


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?（）
    A

    The ERX router sends an Active Discovery Offer message.

    B

    The ERX router sends an Active Discovery Initiation message.

    C

    The customer device sends an Active Discovery Offer message.

    D

    The customer device sends an Active Discovery Initiation message


    正确答案： D
    解析： 暂无解析

  • 第24题：

    单选题
    How does a switch respond when it receives a message?（）
    A

    It reads the Layer-5 information and sends the message directly to the intended computer.

    B

    It reads the Media Access Control (MAC) address and broadcasts the message to all the computers that are connected to the switch.

    C

    It reads the Media Access Control (MAC) address and sends the message directly to the intended computer.

    D

    It reads the Layer-5 information and broadcasts the message to all the computers that are connected to the switch.


    正确答案： D
    解析： 暂无解析

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