CH 11-12 LINUX NETWORKING QUESTIONS

Question 1

In Linux, drivers are referred to as
  A)  Modules
  B)  Segments
  C)  Kernels
  D)  Components

Answer 1

A) Modules

Question 2

ifconfig and ip can do the exact same things but with different switches
True
False

Answer 2

False

Question 3

In what situation would an alias be appropriate?
A) When there is only one IP address needed for a machine.
B) When you need to have a single host have more than one IP address assigned to the same interface
C) When you do not like the name of the interface as it exists
D) When the Linux server needs to talk to a Windows workstation

Answer 3

B) When you need to have a single host have more than one IP address assigned to the same interface

Question 4

Place the appropriate seven layers of the OSI model in order, from top to bottom (i.e., layer 1 should be at the bottom and layer 7 should be at the top).
____ Data Link

____ Network

____ Application

____ Physical

____ Session

____ Transport

____ Presentation

Answer 4

__2__ Data Link

__3__ Network

__7__ Application

__1__ Physical

__5__ Session

__4__ Transport

__6__ Presentation

Question 5

Headers are pieces of information that tell the protocol how to handle the packet.
True
False

Answer 5

True

Question 6

\_\_\_\_\_\_ is the protocol that is used for applications where the packet sender does not need to guarantee successful delivery of the data.
  A)  UDP
  B)  TCP
  C)  CNN
  D)  ARP

Answer 6

A) UDP

Question 7

How many theoretical number of addresses can be capable of being assigned an IPv6 IP address (assuming no use of NAT)?
A) 340,282,366,920,938,463,463,374,607,431,768,211,456
B) 4,294,967,296
C) 42
D) 602,214,141,070,409,084,099,072

Answer 7

A) 340,282,366,920,938,463,463,374,607,431,768,211,456

Question 8

The Linux command that is most similar to the ipconfig utility is the \_\_\_\_\_\_\_\_\_ utility.
  A)  ifconfig
  B)  route
  C)  tcpdump
  D)  itconfig

Answer 8

A) ifconfig

Question 9

A common mistake made when using tcpdump is to log in via the network and then start a capture. Without the appropriate filter, you’ll end up capturing your session packets, which, in turn, if you’re printing them to the screen, can generate new packets, which get captured again, and so on. A quick way to skip your own traffic (and that of other administrators) is simply to
A) Skip port 22 (the SSH port) in the capture.
B) Skip port 443 (the SSL port) in the capture.
C) Unplug your Ethernet cable.
D) Reboot your server to correct the packet flood.

Answer 9

A) Skip port 22 (the SSH port) in the capture.

Question 10

A system’s___________________is the friendly name by which other systems or applications can address the system on a network.

Answer 10

HOSTNAME

Question 11

A GUI-based alternative to tcpdump is \_\_\_\_\_\_
  	A)  Cordwhale
  	B)  Bittorrent
   	C)  Wireshark
  	D)  xserver

Answer 11

C) Wireshark

Question 12

Taking a packet trace can have a performance impact, especially on a heavily loaded server.
True
False

Answer 12

True

Question 13

The two flags that are found in a response packet sent from a server to a client are________________ and________________.

Answer 13

ACK and SYN