10.3

Question 1

A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building. Which topology provides high availability and connects some, but not all, remote sites?
	mesh
	partial mesh
	hub and spoke
	point-to-point

Answer 1

 partial mesh*

Question 2

What method is used to manage contention-based access on a wireless network?
	CSMA/CD
	priority ordering
	CSMA/CA
	token passing

Answer 2

 CSMA/CA*

Question 3

What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)
 error correction through a collision detection method
 session control using port numbers
 data link layer addressing
 placement and removal of frames from the media
 detection of errors through CRC calculations
 delimiting groups of bits into frames
 conversion of bits into data signals

Answer 3

 data link layer addressing*
 detection of errors through CRC calculations *
 delimiting groups of bits into frames*

Question 4

What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?
 It will discard the frame.
 It will forward the frame to the next host.
 It will remove the frame from the media.
 It will strip off the data-link frame to check the destination IP address.

Answer 4

 It will discard the frame.*

Question 5

What are two examples of the cut-through switching method? (Choose two.)
	store-and-forward switching
	fast-forward switching
	CRC switching
	fragment-free switching
	QOS switching

Answer 5

 fast-forward switching*

 fragment-free switching*

Question 6

What are two actions performed by a Cisco switch? (Choose two.)
 building a routing table that is based on the first IP address in the frame header
 using the source MAC addresses of frames to build and maintain a MAC address table
 forwarding frames with unknown destination IP addresses to the default gateway
 utilizing the MAC address table to forward frames via the destination MAC address
 examining the destination MAC address to add new entries to the MAC address table

Answer 6

 using the source MAC addresses of frames to build and maintain a MAC address table*
 utilizing the MAC address table to forward frames via the destination MAC address*

Question 7

Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
	cut-through switching
	store-and-forward switching
	fragment-free switching
	fast-forward switching

Answer 7

 store-and-forward switching*

Question 8

Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?

	DD:DD:DD:DD:DD:DD
	172.168.10.99
	CC:CC:CC:CC:CC:CC
	172.168.10.65
	BB:BB:BB:BB:BB:BB
	AA:AA:AA:AA:AA:AA

Answer 8

 BB:BB:BB:BB:BB:BB*

Question 9

What addresses are mapped by ARP?
 destination MAC address to a destination IPv4 address
 destination IPv4 address to the source MAC address
 destination IPv4 address to the destination host name
 destination MAC address to the source IPv4 address

Answer 9

 destination MAC address to a destination IPv4 address*

Question 10

What information is added during encapsulation at OSI Layer 3?
 source and destination MAC
 source and destination application protocol
 source and destination port number
 source and destination IP address

Answer 10

 source and destination IP address*