ICMP Quiz (Online)

1.  

You execute the ping command from a host, but the router does not have a path to its destination. Which of the following ICMP message types will a client receive from the router?

2.  

The network administrator at ATECH issues the ”#ping 10.0.0.99” command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test?

3.  

What kind of message does a PING send out to test connectivity?

4.  

What are the Echo-request and echo-reply messages designed for?

5.  

An administrator issues the command “#ping 127.0.0.1” from the command line prompt on a PC host named ATECH1. If an ICMP reply is received, what does this confirm?

6.  

Which function does IP SLA ICMP ECHO operation perform to assist with troubleshooting?

7.  

For security reasons, the Cisco network administrator needs to prevent pings into the corporate networks from hosts outside the internetwork. Using access control lists, which protocol should be blocked?

8.  

What is the companion of the Internet Control Message Protocol (ICMP)?

9.  

Which ICMP message is sent by a host in the network to test connectivity with another host?

10.  

When you use the ping command to send ICMP messages across a network, what’s the most common request/reply pair you’ll see