PING命令使用了哪种ICMP消息？（）A、RedirectB、Source quenchC、Echo request和Echo replyD、Destination unreachable
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
相关考题：
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
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.
What kind of message does a PING send out to test connectivity?() A. ICMP echo requestB. Information interrupt requestC. Timestamp replyD. Source quenchE. None of the above
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
源主机ping 目的设备时，如果网络工作正常，则目的设备在接收到该报文后，将会向源主机回应ICMP( )报文。 A.Echo RequestB.Echo ReplyC.TTL-ExceededD.Port-Unreachable
源主机ping目的设备时，如果网络工作正常，则目的设备在接收到该报文后，将会向源主机回应ICMP（）报文。A、Echo RequestB、Echo ReplyC、TTL-ExceededD、Port-Unreachable
从源设备到目的设备之间有两跳，使用tracert命令检测路径。检测第一跳时，源设备对目的设备的某个较大的端口发送一个TTL为1的UDP报文，当该报文到达中间一跳时，TTL将变为0，于是该设备对源设备回应一个ICMP（）消息。A、Time ExceededB、Echo RequestC、Echo ReplyD、Port Unreachable
PING命令使用了哪种ICMP消息（）。A、RedirectB、Source quenchC、Echo request和Echor eplyD、Destination unreachable。
What kind of message does a PING send out to test connectivity?（）A、ICMP echo requestB、Information interrupt requestC、Timestamp replyD、Source quenchE、None of the above
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.
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_allB、echo0/proc/sys/net/ipv4/tcp_syncookiesC、echo1/proc/sys/net/ipv4/icmp_echo_ignore_allD、echo1/proc/sys/net/ipv4/tcp_syncookies
单选题PING命令使用了哪种ICMP消息（）。ARedirectBSource quenchCEcho request和Echor eplyDDestination unreachable。
单选题PING命令使用了哪种ICMP？正确的选项是？（）。ARedirect；BSource quench；CEchoreply；DDestination unreachable