Chapter 11 Homework

Question 1

What type of traffic would most likely have the highest priority through the network?

Answer 1

voice

Question 2

hardware threats

Answer 2

physical damage to servers, routers, switches, cabling plant, and workstations

Question 3

environmental threats

Answer 3

temperature and humidity extremes

Question 4

electrical threats

Answer 4

voltage spikes, insufficient supply voltage (brownouts), unconditioned power (noise), and total power loss

Question 5

in a ping ‘U’ may indicate that a router along the path _________

Answer 5

did not contain a route to the destination address and that the ping was unsuccessful.

Question 6

What is one of the most effective security tools available for protecting users from external threats?

Answer 6

password encryption techniques

Question 7

Which protocol is used by the traceroute command to send and receive echo-requests and echo-replies

Answer 7

ICMP (internet control message protocal)

Question 8

What is considered the most effective way to mitigate a worm attack?

Answer 8

download security updates and patch all vulnerable systems

Question 9

A particular website does not appear to be responding on a Windows 7 computer. What command could the technician use to show any cached DNS entries for this web page?

Answer 9

ipconfig

Question 10

hich process failed if a computer cannot access the Internet and received an IP address of 169.254.142.5

Answer 10

DNS (domain name system)

Question 11

Which element of scaling a network involves identifying the physical and logical topologies?

Answer 11

network documentation

Question 12

How should traffic flow be captured in order to best understand traffic patterns in a network?

Answer 12

during peak utilization times

Question 13

A network technician is investigating network connectivity from a PC to a remote host with the address 10.1.1.5. Which command, when issued on a Windows PC, will display the path to the remote host?

Answer 13

tracert 10.1.1.5

Question 14

An administrator wants to back up a router configuration file to a USB drive that is connected to the router. Which command should the administrator use to verify that the USB drive is being recognized by the router?

Answer 14

show file systems

Question 15

Network services use to define a set of rules that govern how devices communicate and the data formats used in a network

Answer 15

protocols