ICMP Quiz (Online)

1.  

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

2.  

What statement is true regarding ICMP packets?

3.  

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

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.  

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.  

Which port number does ICMP use?

7.  

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

8.  

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

9.  

Which statement is NOT true regarding ICMP?

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