ICMP Quiz (Online)

1.  

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

2.  

What is the header size of ICMP Packet?

3.  

Which port number does ICMP use?

4.  

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

5.  

Which two fields in the ICMP header is used for identifying the intent of ICMP message?

6.  

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?

7.  

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?

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.  

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