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1.

Which switching mode changes to store-and-forward mode after it detects a given number of errors?
	cut-through
	adaptive fast-forward
	fragment-free
	adaptive cut-through

2.

Which of the following is used to build a switching table?
	source IP addresses
	destination IP addresses
	destination MAC addresses
	source MAC addresses

3.

How does an Ethernet bridge handle an incoming frame? (Choose three.)
	The source MAC address and input interface pair are added to the bridging table.
	The destination MAC address and input interface pair are added to the bridging table.
	If no match to the destination MAC address is found in the bridging table, the frame is discarded.
	If no match to the destination MAC address is found in the bridging table, the frame is flooded out all other interfaces.
	If a match to the destination MAC address is found in the bridging table, the frame is forwarded out the associated interface.
	If a match to the source MAC address is found in the bridging table, the frame is forwarded to all ports

4.

What does switch latency describe?
	forwarding method used by a switch
	time it takes for a frame to be received by a switch
	improvement in network performance from using a switch
	time delay between when a frame enters and exits a switch
	increase in the size of a collision domain from using a switch

5.

Which statements describe asymmetric switching? (Choose three.)
	It uses data compression algorithms to manage higher bandwidth interfaces.
	It is often used to provide high bandwidth uplinks for a number of lower bandwidth client interfaces.
	It provides connections between network segments that operate at different bandwidths.
	It uses cut-through forwarding when going from a lower bandwidth to a higher bandwidth interface.
	It is used to provide more bandwidth to network clients than to backbone or server links.
	It may require buffering frames before forwarding to the destination interface.

6.

Which of the following are true regarding the addition of switches to a network? (Choose two.)
	They increase the number of collision domains.
	They decrease the number of collision domains.
	They increase the number of broadcast domains.
	They decrease the number of broadcast domains.
	They increase the amount of bandwidth available to users.
	They decrease the amount of bandwidth available to users.

7.

Which statements are true regarding hubs? (Choose three.)
	Hubs operate at Layer 1 of the OSI model.
	They create separate collision domains.
	Signals are distributed through all ports.
	Layer 2 addresses are used to make decisions.
	They calculate the CRC for each frame received prior to forwarding.
	Bandwidth is shared among all connected users.

8.

Hubs are concerned with which PDU?
	bits
	frames
	packets
	datagrams

9.

Which attribute is used by a bridge to make forwarding decisions?
	source IP address
	source MAC address
	destination IP address
	destination MAC address
	Layer 4-7 protocol address

10.

Which form of buffering is used by bridges?
	cut-through
	fragment-free
	fast-forward
	store-and-forward

11.

Where are switching tables stored in a Cisco LAN switch?
	ROM
	CAM
	Flash
	SIMM
	NRAM

12.

Which statements are true concerning the shared memory buffering used by an Ethernet switch? (Choose two.)
	Frames are processed through a single queue.
	All frames are placed in a common memory buffer.
	Frames are placed in a queue for the destination port.
	A port with a full memory buffer can cause frames for available ports to be delayed.
	Each switch port is statically assigned a buffer of equal size.

13.

Which of the following is a Layer 2 broadcast address?
	0.0.0.0
	255.255.255.255
	11:11:11:11
	FF:FF:FF:FF
	FF:FF:FF:FF:FF:FF

14.

Refer to the graphic. Which point in the frame must be reached before it is forwarded by a switch that is using fast-forward mode?
	A
	B
	C
	D
	E
	F

15.

Refer to the graphic. Which point must be reached before a frame is forwarded when the switch is using store-and-forward mode? A B C D E F

16.

What are the functions of routers? (Choose three.)
	improving network performance by increasing latency by twenty to thirty percent
	segmenting broadcast domains
	forwarding packets based on destination network layer addresses
	segmenting collision domains
	forwarding packets as soon as the destination MAC address is read
	developing routing table entries based on source IP addresses

17.

Why would a network administrator segment a network with a Layer 2 switch? (Choose two.)
	to create fewer collision domains
	to enhance user bandwidth
	to create more broadcast domains
	to eliminate virtual circuits
	to isolate traffic between segments
	to isolate ARP request messages from the rest of the network

18.

Why does a switch have higher throughput compared to a bridge?
	Switching occurs in software.
	Switching occurs in hardware.
	Switches create multiple broadcast domains.
	Switches segment LANs.

19.

What are the functions of a Layer 2 Ethernet switch? (Choose three.)
	preventing broadcasts
	increasing available bandwidth per user
	decreasing the size of collision domains
	isolating traffic among segments
	routing traffic between different networks
	decreasing the number of broadcast domains

20.

Which device provides segmentation within a single network?
	hub
	server
	switch
	transceiver