Host 1 sends an ICMP echo request to remote sever1. Layer2 header of the frame containing the ping packet（）。A、The IP address of sever 1.B、The MAC address of NIC in sever 1.C、The IP address of F0/0 interface of router R1.D、The MAC address of the Fa0/0 inte

题目

Host 1 sends an ICMP echo request to remote sever1. Layer2 header of the frame containing the ping packet（）。

  • A、The IP address of sever 1.
  • B、The MAC address of NIC in sever 1.
  • C、The IP address of F0/0 interface of router R1.
  • D、The MAC address of the Fa0/0 interface of router R1.
  • E、The IP address of the s0/0/0 interface of router R2
  • F、The MAC address of the s0/0/0 interface of router R2
相似考题

1.默认情况下,ICMP列表中()A.不允许任何ICMP消息B.允许所有ICMP消息C.只允许传入的echo请求D.不允许传入的echo请求

2.ICMP报文的类型字段为8、代码字段为0，代表ICMP（）。A.Echo请求报文B.Echo应答报文C.超时报文D.目的不可达报文

3.Click the Exhibit button.A user logs in, is assigned the default role, and successfully loads the Host Enforcer policies shown in the exhibit.Which three statements are true? ()A. The local host will respond to ICMP echo-request packets from 192.168.53.10.B. The local host will respond to UDP port 53 requests from 192.168.1.25.C. The local host can send any packet of any type to host 172.16.1.1.D. The local host will accept any packet of any type from host 172.16.1.1.E. The local host can send packets to UDP port512 on server 192.168.53.10.

4.When you use the ping command to send ICMP messages across a network, what's the most common request/reply pair you'll see? (Select one answer choice)A．Echo request and Echo replyB．ICMP hold and ICMP sendC．ICMP request and ICMP replyD．Echo off and Echo onE．None of the above

更多“Host 1 sends an ICMP echo reques”相关问题

  • 第1题：

    What happens when you issue the ping 172.19.102.2 count 5 command?()

    A. ICMP echo requests are sent to 172.19.102.2 in five-millisecond intervals.

    B. ICMP echo requests are sent to 172.19.102.2 until five packets are dropped.

    C. ICMP echo requests are sent to 172.19.102.2 five times.

    D. ICMP echo requests are sent continuously to 172.19.102.2 for five seconds.


    参考答案：C

  • 第2题：

    Host1正在试图和Host2联系。RouterC的e0接口是down的,以下选项正确的是?()

    A.RouterC会使用ICMP通知Host1&ldquo；Host2无法到达&rdquo；

    B.RouterC会使用ICMP通知Host1&ldquo；Host1无法到达&rdquo；

    C.RouterC会使用ICMP通知Host1，RouterA和RouterB&ldquo；Host2无法到达&rdquo；

    D.RouterC会发送一个&ldquo；DestinationUnreachable&rdquo；的消息类型

    E.RouterC会发送一个&ldquo；RouterSelection&rdquo；的消息类型

    F.RouterC会发送一个&ldquo；SourceQuench&rdquo；的消息类型


    参考答案：A, D

  • 第3题：

    默认情况下，ICMP列表中（）。

    • A、不允许任何ICMP消息
    • B、允许所有ICMP消息
    • C、只允许传入的echo请求
    • D、不允许传入的echo请求

    正确答案:A

  • 第4题：

    PING命令使用ICMP的（）code类型。

    • A、Direct
    • B、Echo reply
    • C、Destination Unreachable
    • D、以上答案都不正确

    正确答案:B

  • 第5题：

    PING命令使用了哪种ICMP？正确的选项是（）

    • A、Redirect
    • B、Source quench
    • C、Echo reply Destination unreachable

    正确答案:C

  • 第6题：

    PING命令使用ICMP的哪一种code类型：（）

    • A、Redirect
    • B、Echo reply
    • C、Source quench
    • D、Destination Unreachable

    正确答案:B

  • 第7题：

    应用程序PING发出的是（）报文。

    • A、TCP请求
    • B、TCP应答报文
    • C、ICMP Echo请求报文
    • D、ICMP Echo应答报文

    正确答案:C

  • 第8题：

    PING命令使用了哪种ICMP（）。

    • A、Redirect
    • B、Source quench
    • C、Echo reply
    • D、Destination unreachable

    正确答案:C

  • 第9题：

    防止系统对ping请求做出回应，正确的命令是：（）。

    • A、echo0>/proc/sys/net/ipv4/icmp_ehco_ignore_all
    • B、echo0>/proc/sys/net/ipv4/tcp_syncookies
    • C、echo1>/proc/sys/net/ipv4/icmp_echo_ignore_all
    • D、echo1>/proc/sys/net/ipv4/tcp_syncookies

    正确答案:C

  • 第10题：

    单选题
    Which configuration would make an IP SLA probe use a precedence value of 3？（）
    A

    ip sla 1  icmp-echo 1.1.1.1 tos 12

    B

    ip sla 1  icmp-echo 1.1.1.1 tos 96

    C

    ip sla 1  icmp-echo 1.1.1.1 precedence 3

    D

    ip sla 1  icmp-echo 1.1.1.1 dscp 12


    正确答案： D
    解析： 暂无解析

  • 第11题：

    多选题
    Which two statements regarding traceroute on JUNOS devices are correct?（）
    A

    Traceroute transmits ICMP echo-request packets.

    B

    Traceroute transmits UDP packets.

    C

    Traceroute receives ICMP echo-reply packets.

    D

    Traceroute receives ICMP port-unreachable packets.


    正确答案： B,A
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following protocols would be used to test if one host is reachable by another host， by sending echo requests and waiting for echo replies？（）
    A

    SNMP

    B

    ICMP

    C

    TCP

    D

    UDP


    正确答案： A
    解析： 暂无解析

  • 第13题：

    WhichconfigurationwouldmakeanIPSLAprobeuseaprecedencevalueof3?()

    A.ipsla1icmp-echo1.1.1.1 tos12

    B.ipsla1icmp-echo1.1.1.1 tos96

    C.ipsla1icmp-echo1.1.1.1 precedence3

    D.ipsla1icmp-echo1.1.1.1 dscp12


    参考答案：B

  • 第14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15题：

    Echo sounder sends a（） (无线电信号)from the bottom of the ship to the seabed.

    • A、radio signal
    • B、radio wave
    • C、signal
    • D、signal radio

    正确答案:A

  • 第16题：

    PING命令使用了哪种ICMP消息？（）

    • A、Redirect
    • B、Source quench
    • C、Echo request和Echo reply
    • D、Destination unreachable

    正确答案:C

  • 第17题：

    常用来进行网络连通性检查的Ping命令工具，它的工作原理为（）。

    • A、向目标主机发送UDP Echo Request数据包，等待对方回应UDP Echo Reply数据包
    • B、向目标主机发送ICMP Echo Request数据包，等待对方回应ICMP Echo Reply数据包
    • C、向目标主机发送UDP Echo Reply数据包，等待对方回应ICMP Echo Request数据包
    • D、向目标主机发送ICMP Echo Reply数据包，等待对方回应ICMP Echo Request数据包

    正确答案:B

  • 第18题：

    Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Which of the following are true?（）

    • A、Router C will use ICMP to inform Host 1 that Host 2 cannot be reached.
    • B、Router C will use ICMP to inform Router B that Host 2 cannot be reached.
    • C、Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached.
    • D、Router C will send a Destination Unreachable message type.
    • E、Router C will send a Router Selection message type.
    • F、Router C will send a Source Quench message type.

    正确答案:A,D

  • 第19题：

    ICMP报文的类型字段为8、代码字段为0，代表ICMP（）。

    • A、Echo请求报文
    • B、Echo应答报文
    • C、超时报文
    • D、目的不可达报文

    正确答案:A

  • 第20题：

    When an ICMP redirect is received from a host that is not the current gateway for the route it is redirecting， which of the following options is the most appropriate to conclude？（）

    • A、The redirect will be ignored
    • B、The routing table will be altered
    • C、The ping will fail， followed by other network services.
    • D、The host， which sent the ICMP redirect， will begin acting as the gateway

    正确答案:B

  • 第21题：

    单选题
    默认情况下，ICMP列表中（）。
    A

    不允许任何ICMP消息

    B

    允许所有ICMP消息

    C

    只允许传入的echo请求

    D

    不允许传入的echo请求


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    Host 1 sends an ICMP echo request to remote sever1. Layer2 header of the frame containing the ping packet（）。
    A

    The IP address of sever 1.

    B

    The MAC address of NIC in sever 1.

    C

    The IP address of F0/0 interface of router R1.

    D

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

    E

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

    F

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


    正确答案： B
    解析： 暂无解析

  • 第23题：

    多选题
    Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Which of the following are true (Choose two.)（）。
    A

    Router C will use ICMP to inform Host 1 that Host 2 cannot be reached

    B

    Router C will use ICMP to inform Router B that Host 2 cannot be reached

    C

    Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached

    D

    Router C will send a Destination Unreachable message type

    E

    Router C will send a Router Selection message type

    F

    Router C will send a Source Quench message type


    正确答案： C,D
    解析： 暂无解析

相关内容