Ch. 18 Configuring And Verifying Host Conmectivity

Question 0

____ is one of the most commonly used protocols in a TCP/IP network

Answer 0

DHCP

Question 1

DHCP

Answer 1

Dynamic host configuration protocol

Question 2

DORA

Answer 2

Discover
Offer
Request
Acknowledgement

Question 3

A _____ relay changes the IP addresses in the packet header

Answer 3

DHCP

Question 4

GUI

Answer 4

Graphical user interface

Question 5

The ____ command exists to test connectivity

Answer 5

Ping

Question 6

ICMP

Answer 6

Internet control message protocol

Question 7

The cisco iOS ____ command sends five echo messages, with a timeout of 2 seconds. If the command does not receive an echo reply within two seconds the command considers that message to be a failure and it sends the next one.

Answer 7

Ping

Question 8

The ____ command systematically helps pinpoint problems by showing how far a packet goes through an IP network before being discarded

Answer 8

Traceroute

Question 9

TTL exceeded

Answer 9

Time to live exceeded

Question 10

The ___ counts down to zero once per hop, when the count reaches zero it is considered to be a looping packet and it is discarded

Answer 10

TTL (time to live)

Question 11

ACL

Answer 11

Access control lists

Question 12

The _____ feature (one of the most important in Cisco IOS) allows a telnet or SSH connection to remain active while creating another telnet or SSH connection, so that you can make concurrent connections and easily switch between them

Answer 12

Suspend

Question 13

The ____ command can be used to restore a telnet or SSH connection

Answer 13

Resume

Question 14

Review questions

Answer 14

Pg 459