What is the result of segmenting a network with a bridge (switch)?
1.It increases the number of collision domains.
2.It decreases the number of collision domains.
3.It increases the number of broadcast domains.
4.It decreases the number of broadcast domains.
5.It makes smaller collision domains.
6.It makes larger collision domains.
A) 1 and 5
B) 2, 3 and 5
C) 3, 4 and 6
D) 1, 3 and 6
Correct Option - A
ExplanationBridges break up collision domains, which would increase the number of collision domains in a network and also make smaller collision domains.
Layer 2 switching provides which of the following?
1.Hardware-based bridging (ASIC)
2.Wire speed
3.Low latency
4.Low cost
A) 1 and 3
B) 2 and 4
C) 1, 2 and 4
D) All of the above
Correct Option - D
ExplanationSwitches, unlike bridges, are hardware based. Cisco says its switches are wire speed and provide low latency, and I guess they are low cost compared to their prices in the 1990s.
A) show mac filter
B) show run
C) show mac address-table
D) show mac filter-table
Correct Option - C
ExplanationThe command show mac address-table displays the forward/filter table on the switch.
A) VTP
B) STP
C) RIP
D) CDP
Correct Option - B
ExplanationThe Spanning Tree Protocol is used to stop switching loops in a switched network with redundant paths.
A) To provide a mechanism for network monitoring in switched environments
B) To prevent routing loops in networks with redundant paths
C) To prevent switching loops in networks with redundant switched paths
D) To manage the VLAN database across multiple switches
Correct Option - C
ExplanationThe Spanning Tree Protocol (STP) was designed to stop layer 2 loops. All Cisco switches have the STP on by default.
A) During high-traffic periods
B) After broken links are reestablished
C) When upper-layer protocols require high reliability
D) In an improperly implemented redundant topology
Correct Option - D
ExplanationIf the Spanning Tree Protocol is not running on your switches and you connect them together with redundant links, you will have broadcast storms and multiple frame copies.
A) Forwards the switch to the first available link
B) Drops the frame
C) Floods the network with the frame looking for the device
D) Sends back a message to the originating station asking for a name resolution
Correct Option - C
ExplanationSwitches flood all frames that have an unknown destination address. If a device answers the frame, the switch will update the MAC address table to reflect the location of the device.