Exam 5: Internet Control Message Protocol

Which of the following message types document when routing or delivery errors prevent IP datagrams from reaching their destinations?

Match each item with a statement below. a.Network congestion b.firewalking c.ICMP query message d.inverse mapping e.ICMP Echo communication f.overhead g.reachability h.throughput difference i.restricting link -the ability to find at least one transmission path between a pair of hosts so they can exchange datagrams across an internetwork

Routers can use ICMP to provide a default gateway setting to a host (if the host requests assistance).

Which of the following utilities use route tracing to identify a path from the sender to the target host?

Which of the following is a command-line utility that uses ICMP Echo packets to test router and link latency, as well as packet loss?

Which of the following processes is one method of obtaining a list of the active hosts on a network?

According to RFC 792, what is the relationship between IP and ICMP?

Describe the ICMP message Code 3 Port Unreachable.

Briefly describe an ICMP redirect attack.

Match each item with a statement below. a.Network congestion b.firewalking c.ICMP query message d.inverse mapping e.ICMP Echo communication f.overhead g.reachability h.throughput difference i.restricting link -the comparative difference in throughput between two paths and is measured in Kbps or Mbps