linux ch12

Question 1

Home users can use a LAN, but not a WAN.

Answer 1

f

Question 2

Class D addresses are used for multicasting.

Answer 2

t

Question 3

SLIP is a newer technology than PPP.

Answer 3

f

Question 4

Passwords used by the PPP daemon are stored in two files: /etc/ppp/pap-secrets and /etc/ppp/chap-secrets.

Answer 4

t

Question 5

A route table is a list of TCP/IP networks that is stored in system memory.

Answer 5

t

Question 6

The most common media access method used to send TCP/IP packets onto network media is called Token Ring.

Answer 6

f

Question 7

Directed communication from one computer to another single computer using TCP/IP is referred to as a(n) unicast.

Answer 7

t

Question 8

In an IP address, the host ID represents the network on which the computer is located.

Answer 8

f

Question 9

The simplest method for mapping host names to IP addresses is by placing entries into the /etc/hosts file.

Answer 9

t

Question 10

The ssh command has traditionally been used to obtain a command-line shell on remote Linux servers.

Answer 10

f

Question 11

The most common LAN protocol used today is ____.

Answer 11

TCP/IP

Question 12

Each octet in an IP address represents a(n) ____ binary number.

Answer 12

8-bit (not byte)

Question 13

The IP addresses ____ and ____ are not allowed to be assigned to a host computer because they refer to all networks and all computers on all networks, respectively.

Answer 13

0.0.0.0; 255.255.255.255

Question 14

The subnet mask for a Class B IP address is ____.

Answer 14

255.255.0.0

Question 15

The subnet mask for a Class C IP address is ____.

Answer 15

255.255.255.0

Question 16

IPv6 IP addresses are delimited by the ____ character.

Answer 16

:

Question 17

IPv6 IP addresses are written using eight 16-bit ____ numbers.

Answer 17

hexadecimal

Question 18

The ____ command can be used to assign a TCP/IP configuration to a NIC as well as view the configuration of all network interfaces in the computer.

Answer 18

ifconfig

Question 19

The ____ command sends a small TCP/IP packet to another IP address and awaits a response.

Answer 19

ping

Question 20

Computer names are called ____.

Answer 20

host names

Question 21

The /etc/resolv.conf file can contain up to ____ DNS servers.

Answer 21

3

Question 22

A common utility used to troubleshoot routing is the ____ command.

Answer 22

traceroute

Question 23

The ____ utility can be used to obtain a shell from a remote computer on the network without specifying a password.

Answer 23

rlogin

Question 24

One method of setting up trusted access is to add the host names of computers to the ____ file on the remote computer.

Answer 24

/etc/hosts.equiv

Question 25

____ is a remote administration tool that encrypts information that passes across the network.

Answer 25

Secure Shell (SSH)

Question 26

Remote computers can connect to a configured VNC server using the ____ command.

Answer 26

vncviewer

Question 27

Are all computers on a LAN typically configured with the same host ID?

Answer 27

no

Question 28

Can you receive a TCP/IP configuration from a server on the network?

Answer 28

yes

Question 29

Can TCP/IP use host names to identify computers?

Answer 29

no

Question 30

Can you configure your system to resolve names to IP addresses by contacting a DNS server?

Answer 30

yes

Question 31

Do stand-alone daemons provide network services directly to utilities that connect to them?

Answer 31

yes