ICMP Quiz (Online)

1.  

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

2.  

Which port number does ICMP use?

3.  

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

4.  

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?

5.  

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

6.  

Which statement is NOT true regarding ICMP?

7.  

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

8.  

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?

9.  

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

10.  

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