ICMP Quiz (Online)

1.  

What is the header size of ICMP Packet?

2.  

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

3.  

Which statement is NOT true regarding ICMP?

4.  

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?

5.  

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?

6.  

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

7.  

Which port number does ICMP use?

8.  

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

9.  

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?

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