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

题目
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
相似考题

1.● Every host and router on the Internet has an IP address，which encodes its (69) ．(69) A．host numberB．host number and socketC．network numberD．host number and network number

2.Every host and router on the Internet has an IP address, which encodes its(12).A．host numberB．network numberC．host number and socketD．host number and network number

3.Every host and muter on the Internet has an IP address,which encodes its(69).A．host numberB．host number and socketC．network numberD．host number and network number

4.Every host and router on the Internet has an IP address, which encodes itsA．host numberB．host number and socketC．network numberD．host number and network number

参考答案和解析
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。
更多“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 i”相关问题

  • 第1题：

    When an IPv6 enabled host boots, it sends a router solicitation (RS) message. An IPv6 router responds with a router advertisement (RA).Which two items are c ontained in the RA?()

    A. any route advertisements it has received

    B. prefixes for the link

    C. keepalive timers

    D. IPv6 address for the host

    E. request for the local host IP address

    F. lifetime of the prefix


    参考答案：B, F

  • 第2题：

    Refer to the graphic.Host A is communicating with the seiver. What will be the source MAC address of the frames received by Host A from the server?()

    A.the MAC address of the seiver network interface

    B.the MAC address of host A

    C.the MAC address of router interface e 1

    D.the MAC address of router interface e0


    参考答案：D

  • 第3题：

    Host 1 sends a request for a file to remote sever1. Which destination address does Host 1 place f the packet containing the request（）。

    • A、The Mac address of the NIC in Sever1
    • B、The IP address of Server 1.
    • C、The MAC address of the s0/0/0 interface of router R2
    • D、The IP address of the s0/0/0 interface of router R1
    • E、The IP address of the Fa0/0 interface of router R1

    正确答案:B

  • 第4题：

    Host 1 receives a file from remote server 1. Which MAC address appears as the source address in the header of the frames received by Host 1（）。

    • A、The MAC address of the NIC in Host 1
    • B、The MAC address of the NIC in server 1
    • C、The MAC address of the Fa0/0 interface of router R1
    • D、The MAC address of the s0/0/0 interface of the router R2

    正确答案:C

  • 第5题：

    What does the "Inside Global" address represent in the configuration of NAT?（）

    • A、the summarized address for all of the internal subnetted addresses
    • B、the MAC address of the router used by inside hosts to connect to the Internet
    • C、a globally unique， private IP address assigned to a host on the inside network
    • D、a registered address that represents an inside host to an outside network

    正确答案:D

  • 第6题：

    Host 1 has just started up and requests a web page from web server 2. Which two statements describe steps in the process Host 1 uses to send the request to web server 2 (choose two)（）。

    • A、Host 1 addresses the frames to the MAC address of router R1
    • B、Host 1 looks in its ARP cache for the MAC address of router R1
    • C、Host 1 addresses the frames to the MAC address of web server 2
    • D、Host 1 sends the packets to router R1 to be forwarded to web server 2
    • E、Host 1 sends a broadcast ARP request to obtain the MAC address of webserver2

    正确答案:C,E

  • 第7题：

    When an IPv6 enabled host boots, it sends a router solicitation (RS) message. An IPv6 router responds with a router advertisement (RA). Which two items are c ontained in the RA?（）

    • A、any route advertisements it has received
    • B、prefixes for the link
    • C、keepalive timers
    • D、IPv6 address for the host
    • E、request for the local host IP address
    • F、lifetime of the prefix

    正确答案:B,F

  • 第8题：

    Which three options are supported as address allocation mechanisms for DHCP on Cisco routers?（）

    • A、The IP address can be automatically assigned to a host.
    • B、The IP address can be assigned as a random hash value of the burned - in - address of the lowest - numbered LAN interface on the router.
    • C、The network administrator can assign a speci fic IP address to a specific host MAC address.
    • D、The IP address can be assigned from configured pools in a reverse lexicographical order.
    • E、The IP address can be assigned to a host for a limited time or until the host explicitly releases the address.
    • F、The IP address can be assigned to a host until the host usurps the assigned value using its own dynamic override mechanism.

    正确答案:A,C,E

  • 第9题：

    单选题
    Host 1 sends a request for a file to remote sever1. Which destination address does Host 1 place f the packet containing the request（）。
    A

    The Mac address of the NIC in Sever1

    B

    The IP address of Server 1.

    C

    The MAC address of the s0/0/0 interface of router R2

    D

    The IP address of the s0/0/0 interface of router R1

    E

    The IP address of the Fa0/0 interface of router R1


    正确答案： A
    解析： 暂无解析

  • 第10题：

    多选题
    When an IPv6 enabled host boots, it sends a router solicitation (RS) message. An IPv6 router responds with a router advertisement (RA). Which two items are c ontained in the RA?（）
    A

    any route advertisements it has received

    B

    prefixes for the link

    C

    keepalive timers

    D

    IPv6 address for the host

    E

    request for the local host IP address

    F

    lifetime of the prefix


    正确答案： D,B
    解析： 暂无解析

  • 第11题：

    单选题
    Host 1 receives a file from remote server 1. Which MAC address appears as the source address in the header of the frames received by Host 1（）。
    A

    The MAC address of the NIC in Host 1

    B

    The MAC address of the NIC in server 1

    C

    The MAC address of the Fa0/0 interface of router R1

    D

    The MAC address of the s0/0/0 interface of the router R2


    正确答案： A
    解析： 暂无解析

  • 第12题：

    多选题
    Host 1 has just started up and requests a web page from web server 2. Which two statements describe steps in the process Host 1 uses to send the request to web server 2 (choose two)（）。
    A

    Host 1 addresses the frames to the MAC address of router R1

    B

    Host 1 looks in its ARP cache for the MAC address of router R1

    C

    Host 1 addresses the frames to the MAC address of web server 2

    D

    Host 1 sends the packets to router R1 to be forwarded to web server 2

    E

    Host 1 sends a broadcast ARP request to obtain the MAC address of webserver2


    正确答案： E,C
    解析： 暂无解析

  • 第13题：

    A host is attempting to send data to another host on a different network. What is the first action that the sending host will take?()

    A. Drop the data.

    B. Send the data frames to the default gateway.

    C. Create an ARP request to get a MAC address for the receiving host.

    D. Send a TCP SYN and wait for the SYN ACK with the IP address of the receiving host.


    参考答案：C

  • 第14题：

    The access control list shown in the graphic has been applied to the Ethernet interface of router R1using the ip access-group 101 in command.Which of the following Telnet sessions will be blocked by this ACL？（）

    A.from host PC1 to host 5.1.1.10

    B.from host PC1 to host 5.1.3.10

    C.from host PC2 to host 5.1.2.10

    D.from host PC2 to host 5.1.3.8


    参考答案：B, D

  • 第15题：

    A host is attempting to send data to another host on a different network. What is the first action that the sending host will take?（）

    • A、Drop the data.
    • B、Send the data frames to the default gateway.
    • C、Create an ARP request to get a MAC address for the receiving host.
    • D、Send a TCP SYN and wait for the SYN ACK with the IP address of the receiving host.

    正确答案:C

  • 第16题：

    Which command would correctly configure a serial port on a router with the last usable host address in the 192.216.32.32/29 subnet？（）

    • A、Router(config-if)# ip address 192.216.32.38 255.255.255.240
    • B、Router(config-if)# ip address 192.216.32.39 255.255.255.224
    • C、Router(config-if)# ip address 192.216.32.63 255.255.255.248
    • D、Router(config-if)# ip address 192.216.32.39 255.255.255.248
    • E、Router(config-if)# ip address 192.216.32.38 255.255.255.248

    正确答案:F

  • 第17题：

    A network host is configured as follows: Host IP address: 192.168.16.183 Subnet mask: 255.255.255.224 Default gateway: 192.168.16.190 Which of the following statements describe the network to which this host is attached?（）

    • A、The default gateway is configured on a different subnet form this host.
    • B、The host is a member of the fifth usable subnet of the 192.168.16.0 network.
    • C、The subnetwork address for this host is 192.168.16.160/28.
    • D、The address of the next higher subnet is 192.168.16.192.
    • E、The address of the router interface that is attached to this subnetwork is 192.168.16.190.
    • F、There are 60 usable host addresses on this subnet.

    正确答案:B,D,E

  • 第18题：

    Interface ge-0/0/2.0 of your router is attached to the Internet and is configured with an IP address and network mask of 71.33.252.17/24. A host with IP address 10.20.20.1 is running an HTTP service on TCP port 8080. This host isattached to the ge-0/0/0.0 interface of your router. You must use interface-based static NAT to make the HTTP service on the host reachable from the Internet. On which IP address and TCP port can Internet hosts reach the HTTP service?（）

    • A、IP address 10.10.10.1 and TCP port 8080
    • B、IP address 71.33.252.17 and TCP port 80
    • C、IP address 71.33.251.19 and TCP port 80
    • D、IP address 71.33.252.19 and TCP port 8080

    正确答案:D

  • 第19题：

    Which destination addresses will be used by Host A to send data to Host C?（）

    • A、the IP address of Switch 1
    • B、the MAC address of Switch 1
    • C、the IP address of Host C
    • D、the MAC address of Host C
    • E、the IP address of the router's E0 interface
    • F、the MAC address of the router's E0 interface

    正确答案:C,F

  • 第20题：

    A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is 172.16.45.127/26 and the destination is 172.16.46.191/26.How will the router handle the packet?（）

    • A、The destination is a host on another subnet, so the router will not forward the packet.
    • B、The destination is a host on the same subnet, so the router will forward the packet.
    • C、The destination is a broadcast address, so the router will not forward the packet.
    • D、The destination is a network address, so the router will forward the packet.

    正确答案:C

  • 第21题：

    单选题
    A host is attempting to send data to another host on a different network. What is the first action that the sending host will take?（）
    A

    Drop the data.

    B

    Send the data frames to the default gateway.

    C

    Create an ARP request to get a MAC address for the receiving host.

    D

    Send a TCP SYN and wait for the SYN ACK with the IP address of the receiving host.


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is 172.16.45.127/26 and the destination is 172.16.46.191/26.How will the router handle the packet?（）
    A

    The destination is a host on another subnet, so the router will not forward the packet.

    B

    The destination is a host on the same subnet, so the router will forward the packet.

    C

    The destination is a broadcast address, so the router will not forward the packet.

    D

    The destination is a network address, so the router will forward the packet.


    正确答案： A
    解析： 暂无解析

  • 第23题：

    多选题
    Which destination addresses will be used by Host A to send data to Host C?（）
    A

    the IP address of Switch 1

    B

    the MAC address of Switch 1

    C

    the IP address of Host C

    D

    the MAC address of Host C

    E

    the IP address of the router's E0 interface

    F

    the MAC address of the router's E0 interface


    正确答案： D,B
    解析： 暂无解析

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