Chapter 5. Catalyst Switches and End-User Connectivity

1: In today's networks, more and more corporations are replacing hubs with switches. Which of the following is a reason for switching to a Catalyst switch from a hub?

A. Catalyst switches take less time to process frames than hubs take.

B. Catalyst switches decrease the amount of bandwidth available to hosts.

C. Catalyst switches increase the number of collision domains in the network.

D. Catalyst switches do not forward broadcasts.

2: Which of the following statements are true regarding half-duplex Ethernet? (Choose two.)

A. Half-duplex Ethernet typically operates in a shared collision domain.

B. Half-duplex Ethernet typically operates in a private collision domain.

C. Half-duplex Ethernet has higher effective throughput.

D. Half-duplex Ethernet has lower effective throughput.

E. Half-duplex Ethernet operates in a private broadcast domain.

3: Which of the following commands places an IP address on your Catalyst switch?

A. HQ_SW1#ip address 10.2.2.2 255.255.255.0

B. HQ_SW1(config)#Set IP 10.2.2.2 255.255.255.0

C. HQ_SW1(config-vlan)#ip address 10.2.2.2

D. HQ_SW1(config-vlan)#ip address 10.2.2.2 255.255.255.0

4: Which of the following transmission methods checks the entire frame before sending it out an interface on a Catalyst switch?

A. Store-and-forward

B. Buffered

C. Cut-through

D. Fragment-free

5: What are the default configuration settings on a Catalyst switch? (Choose three.)

A. CDP Enabled

B. CDP Disabled

C. Ports at 100Mbps/Full Duplex

D. Ports Auto-Negotiate

E. Spanning-Tree Protocol Enabled

F. Spanning-Tree Protocol Disabled

6: Which of the following are valid MAC addresses? (Choose two.)

A. 2222-3333-3333-2222-9999

B. 2222-3333-9999

C. 2222-AAAA-GGGG

D. 2222-AAAA-FFFF

E. 2222-BBBB-GGGG

7: Your friend is new to the networking world and asks you to brief him on the differences and similarities between bridges and switches. What should you tell him? (Choose two.)

A. Switches are slower than bridges because they have fewer ports.

B. A switch is a multiport bridge.

C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame received.

D. A bridge forwards a broadcast, but a switch does not.

8: Layer 2 switches create multiple collision domains for each of their interfaces. Which of the following terms describes this behavior?

A. Virtual connectivity

B. Multiplicity

C. Microsegmentation

D. Virtual segmentation

9: Which of the following is an advantage of store-and-forward switching in comparison to cut-through switching?

A. Store-and-forward switching is faster.

B. Store-and-forward switching requires less memory on the switch.

C. Store-and-forward switching is compatible with third-party devices.

D. Store-and-forward switching can check frame integrity before forwarding the frame.

10: You are configuring a switch for remote access. What command must be issued in Global Configuration mode to allow the switch to be accessed from a subnet other than its own?

A. ip-default gateway

B. router ip

C. router rip

D. routing enabled

11: Your boss asks you what Spanning-Tree Protocol does. What do you tell her?

A. STP stops routing loops in your network.

B. STP stops broadcasts in your network.

C. STP allows routing loops in your network.

D. STP monitors and contains loops in your switched network.

12: Which of the following STP modes allows MAC addresses to be placed into the CAM table but does not forward frames?

A. Blocking

B. Listening

C. Learning

D. Forwarding

13: Which of the following STP modes occurs when a port becomes a designated port?

A. Blocking

B. Listening

C. Learning

D. Forwarding

14: A switch in your network is unplugged. Assuming that the default convergence parameters have not been altered, how soon will the other switches react and converge when running 802.1d STP?

A. 30 seconds

B. 40 seconds

C. 50 seconds

D. 60 seconds

15: What is the effective throughput for each of 24 PCs connecting to a Catalyst switch's FastEthernet ports operating in half-duplex mode?

A. 1Mbps

B. 10Mbps

C. 100Mbps

D. 2400Mbps

16: You want to disable CDP on all the interfaces on your switch. What command do you type to accomplish this?

A. no cdp run

B. no cdp enable

C. no cdp allow

D. cdp limited

17: You want to disable CDP advertisements from going out one of your trunk ports. Which command disables CDP on that interface without affecting the others?

A. no cdp run

B. no cdp enable

C. cdp disable

D. cdp interface disable

18: Which of the following are advertisements used in Spanning-Tree Protocol?

A. Packets

B. Frames

C. BPDUs

D. VTP

19: Which portion of the Bridge Protocol Data Unit is used to choose the root bridge in Spanning-Tree Protocol?

A. Root ID

B. Bridge ID

C. STP ID

D. MAC address

20: Which of the following is true about Ethernet full-duplex operation? (Choose two.)

A. It requires point-to-point links.

B. Full-duplex provides for collision-free operation.

C. It provides ways to schedule retransmissions.

D. It provides two wires to both transmit and receive.

21: You are configuring a Cisco Catalyst switch for connectivity to a user workstation. In which mode do you apply the speed and duplex configuration commands?

A. User EXEC mode

B. Privileged EXEC mode

C. Global Configuration mode

D. Interface Configuration mode

22: You are adding a brand-new switch to your environment and want to make sure it is the root bridge. What do you do to ensure that it receives this role?

A. Change the MAC address

B. Increase the bridge priority

C. Decrease the bridge priority

D. Change the router ID

23: Which of the following frame transmission methods check only the first 64 bytes before forwarding the frame? (Choose two.)

A. Store-and-forward

B. Cut-through

C. Frame-check

D. Modified cut-through

E. Fragment-free

24: You want to configure the FastEthernet 0/20 port on your Catalyst switch for port security. If anyone other than the MAC address 0001.3232.AABB connects to the port, it should immediately shut down. Which of the following configurations accomplishes this objective?



A. interface fa0/20
switchport mode access
switchport port-security
switchport port-security mac-address 0001.3232.AABB
switchport port-security violation shutdown




B. interface fa0/20
switchport mode access
mac-address 0001.3232.AABB
port-security violation shutdown




C. interface fa0/20
switchport mode access
port-security
mac-address 0001.3232.AABB
port-security violation shutdown




D. interface fa0/20
switchport mode access
switchport port-security
mac-address 0001.3232.AABB
switchport port-security violation shutdown


25: What command allows you to verify your port security configuration on interface FastEthernet 0/20?

A. show interface fa0/20

B. show ip interface fa0/20

C. show interface fa0/20 switchport

D. show port-security interface fa0/20

26: Which of the following is the IEEE standard for Ethernet? (The original Ethernet specification, developed by Xerox, and jointly specified by DEC, Intel, and Xerox is somewhat different from this standard.)

A. 802.1

B. 802.2

C. 802.3

D. 802.5

27: Which of the following connections allows for full-duplex connectivity?

A. A switch connecting to another switch

B. A switch connecting to a hub

C. A hub connecting to another hub

D. A router connecting to another hub

28: What command changes the duplex setting for an individual interface on a Catalyst switch?

A. SW1#duplex full

B. SW1#set duplex full

C. SW1(config)#duplex full

D. SW1(config)#set duplex full

E. SW1(config-if)#duplex full

F. SW1(config-if)#set duplex full

29: Which of the following contribute to congestion on an Ethernet network? (Choose two.)

A. Creation of a new collision domain

B. Creation of a new VLAN

C. Addition of a hub to the network

D. Use of switches in the network

E. Amount of ARP or IPX SAP traffic

30: Which of the following are required for a switch to be managed remotely via Telnet from another IP subnet? (Choose two.)

A. An IP address on the switch

B. A routing protocol

C. Full-duplex connections

D. A default gateway on the switch

E. A static route from the switch to a router

31: One of the switches in your network fails, but you have redundant UTP cabling to another switch in place. Assuming that the default convergence parameters have not been altered, how long before your backup switch will be able to forward frames on all segments?

A. Immediately

B. 10 seconds

C. 40 seconds

D. 50 seconds

32: In Spanning-Tree Protocol, what describes the state at which the root bridge has been elected and all ports are either in their blocked or forwarding state?

A. Stable

B. Blocking

C. Converged

D. Static

33: Which of the following PDUs does a Layer 2 switch process?

A. Bits

B. Frames

C. Packets

D. Segments

34: Which of the following statements are true regarding full-duplex communication? (Choose two.)

A. Full-duplex provides greater bandwidth than half-duplex.

B. Full-duplex is faster than half-duplex token ring.

C. Full-duplex has more collisions than half-duplex.

D. Full-duplex requires point-to-point connections.

35: You have noticed that the amount of broadcast traffic has increased in your environment. A junior network administrator suggests that the company purchase switches with greater port density. Will this solution solve the problem?

A. Yes, with more ports, the number of broadcasts will decrease.

B. Yes, with more ports, the switch will be able to forward broadcasts more efficiently.

C. No, with more ports, you will add to the amount of broadcast traffic.

D. No, with more ports, you will forward broadcasts only to switches, causing CPU utilization to increase on the switches.

36: You want to adjust the likelihood of your switch becoming the root bridge in your Spanning-Tree network. What command accomplishes this?

A. Switch(config)# spanning-tree root

B. Switch(config)# spanning-tree mac-address 0000.0000.0001

C. Switch(config)# spanning-tree priority 65000

D. Switch(config)# spanning-tree vlan 1 priority 4096

37: What command changes the duplex setting for an individual interface on a Catalyst switch?

A. ExamCram2#duplex full

B. ExamCram2#set duplex full

C. ExamCram2 (config)#duplex full

D. ExamCram2 (config)#set duplex full

E. ExamCram2 (config-if)#duplex full

F. ExamCram2 (config-if)#set duplex full

38: What are the three duplex settings available on a Catalyst switch? (Choose three.)

A. Full

B. Auto

C. Half

D. Control

39: Which of the following are valid MAC addresses? (Choose two.)

A. 1111-3333-3333-2222-9999

B. 1111-3333-9999

C. 1111-AAAA-XXXX

D. 1111-AAAA-FFFF

E. 1111-BBBB-XXXX

40: What type of address does a Layer 2 switch utilize?

A. Media Access Control

B. Burned Access Address

C. Internet Protocol

D. Internet Packet Exchange

41: Which of the following devices provides microsegmentation to reduce Ethernet collision domains?

A. Hub

B. Repeater

C. Switch

D. Terminal adapter

42: A switch typically operates at Layer 2 of the OSI Model. What Layer 3 functionality can it utilize to help create broadcast domains?

A. CDP

B. RIP

C. VLANs

D. Full-duplex

E. Half-duplex

43: Which of the following commands shows you the MAC address table that has been learned on a switch?

A. show ip interface

B. show dynamic mac

C. show mac-address-table

D. show mac interface

44: Which of the following contributes to congestion on an Ethernet network?

A. Use of full-duplex mode

B. Creation of new collision domain

C. Creation of new broadcast domain

D. Addition of a hub to the network

45: Which of the following frame transmission methods has the most latency?

A. Store-and-forward

B. Cut-through

C. Modified cut-through

D. Fragment-free

46: Which of the following hexadecimal values represents the decimal value of 215?

A. 0xBA

B. 0x9F

C. 0xAA

D. 0xD7

47: Which of the following hexadecimal values represents the decimal value of 105?

A. 0x69

B. 0x23

C. 0xAA

D. 0xD7

48: Which of the following binary values represents 0xB2?

A. 10110010

B. 10110101

C. 11001100

D. 11010100

49: Your boss asks you to explain why you purchased switches instead of the "cheaper" hubs, because they do the same thing. What do you tell him to justify the purchase of the switches?

A. Hubs do not extend the length of an Ethernet segment.

B. Hubs do not offer half-duplex connections.

C. Hubs do not give dedicated bandwidth to each end user.

D. Hubs do not accept 100Mbps connections.

50: What is the maximum number of switch hops that the 802.1d Spanning-Tree Protocol can monitor?

A. 4

B. 5

C. 6

D. 7

E. 8