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QUESTION 54
Refer to the exhibit. When PC1 sends an ARP request for the MAC address of PC2, network performance slows dramatically, and the switches detect an unusually high number of broadcast frames. What is the most likely
cause of this?

A. The portfast feature is not enabled on all switch ports.
B. The PCs are in two different VLANs.
C. Spanning Tree Protocol is not running on the switches.
D. PC2 is down and is not able to respond to the request.
E. The VTP versions running on the two switches do not match.
Correct Answer: C Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:
QUESTION 55
An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is
received, what does this confirm?
A. The PC has connectivity with a local host.
B. The PC has connectivity with a Layer 3 device.
C. The PC has a default gateway correctly configured.
D. The PC has connectivity up to Layer 5 of the OSI model.
E. The PC has the TCP/IP protocol stack correctly installed.
Correct Answer: E Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:
QUESTION 56
Refer to the exhibit. The network administrator requires easy configuration options and minimal routing
protocol traffic. What two options provide adequate routing table information for traffic that passes between the two routers and satisfy the requests of the network administrator? (Choose two.)

A. a dynamic routing protocol on InternetRouter to advertise all routes to CentralRouter.
B. a dynamic routing protocol on InternetRouter to advertise summarized routes to CentralRouter.
C. a static route on InternetRouter to direct traffic that is destined for 172.16.0.0/16 to CentralRouter.
D. a dynamic routing protocol on CentralRouter to advertise all routes to InternetRouter.
E. a dynamic routing protocol on CentralRouter to advertise summarized routes to InternetRouter.
F. a static, default route on CentralRouter that directs traffic to InternetRouter.
Correct Answer: CF Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:
QUESTION 57
What are some of the advantages of using a router to segment the network? (Choose two.)
A. Filtering can occur based on Layer 3 information.
B. Broadcasts are eliminated.
C. Routers generally cost less than switches.
D. Broadcasts are not forwarded across the router.
E. Adding a router to the network decreases latency.
Correct Answer: AD Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference: QUESTION 58
Refer to the exhibit. What is the meaning of the output MTU 1500 bytes?

A. The maximum number of bytes that can traverse this interface per second is 1500.
B. The minimum segment size that can traverse this interface is 1500 bytes.
C. The maximum segment size that can traverse this interface is 1500 bytes.
D. The minimum packet size that can traverse this interface is 1500 bytes.
E. The maximum packet size that can traverse this interface is 1500 bytes.
F. The maximum frame size that can traverse this interface is 1500 bytes.
Correct Answer: E Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:
QUESTION 59
There are no boot system commands in a router configuration in NVRAM. What is the fallback sequence that
the router will use to find an IOS during reload?
A. TFTP server, Flash, NVRAM
B. ROM, NVRAM, TFTP server
C. NVRAM, TFTP server, ROM
D. Flash, TFTP server, ROM
E. Flash, NVRAM, ROM
Correct Answer: D Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:
QUESTION 60
Refer to the output from the show running-config command in the exhibit. What should the administrator do
to allow the workstations connected to the FastEthernet 0/0 interface to obtain an IP address?

A. Apply access-group 14 to interface FastEthernet 0/0.
B. Add access-list 14 permit any any to the access list configuration.
C. Configure the IP address of the FastEtherent 0/0 interface to 10.90.201.1.
D. Add an interface description to the FastEthernet 0/0 interface configuration.
Correct Answer: C Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:
QUESTION 61
In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched
LAN?
A. during high traffic periods
B. after broken links are re-established
C. when upper-layer protocols require high reliability
D. in an improperly implemented redundant topology
E. when a dual ring topology is in use
Correct Answer: D Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:
QUESTION 62
Which of the following describe private IP addresses? (Choose two.)
A. addresses chosen by a company to communicate with the Internet
B. addresses that cannot be routed through the public Internet
C. addresses that can be routed through the public Internet
D. a scheme to conserve public addresses
E. addresses licensed to enterprises or ISPs by an Internet registry organization
Correct Answer: BD Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:
QUESTION 63
Refer to the exhibit. A network administrator is adding two new hosts to SwitchA. Which three values could
be used for the configuration of these hosts? (Choose three.)

A. host 1 IP address: 192.168.1.79
B. host 1 IP address: 192.168.1.64
C. host 1 default gateway: 192.168.1.78
D. host 2 IP address: 192.168.1.128
E. host 2 default gateway: 192.168.1.129
F. host 2 IP address: 192.168.1.190
Correct Answer: ACF Section: 1_IIII ( 51 -75) 1.c
Explanation
Explanation/Reference:
QUESTION 64
Which of the following statements are true regarding bridges and switches? (Choose 3.)
A. Switches are primarily software based while bridges are hardware based.
B. Both bridges and switches forward Layer 2 broadcasts.
C. Bridges are frequently faster than switches.
D. Switches have a higher number of ports than most bridges.
E. Bridges define broadcast domains while switches define collision domains.
F. Both bridges and switches make forwarding decisions based on Layer 2 addresses.
Correct Answer: BDF Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:
QUESTION 65
Which of the following describes the roles of devices in a WAN? (Choose three.)
A. A CSU/DSU terminates a digital local loop.
B. A modem terminates a digital local loop.
C. A CSU/DSU terminates an analog local loop.
D. A modem terminates an analog local loop.
E. A router is commonly considered a DTE device.
F. A router is commonly considered a DCE device.
Correct Answer: ADE Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:
QUESTION 66
A router receives information about network 192.168.10.0/24 from multiple sources. What will the router
consider the most reliable information about the path to that network?
A. a directly connected interface with an address of 192.168.10.254/24
B. a static route to network 192.168.10.0/24
C. a RIP update for network 192.168.10.0/24
D. an OSPF update for network 192.168.0.0/16
E. a default route with a next hop address of 192.168.10.1
F. a static route to network 192.168.10.0/24 with a local serial interface configured as the next hop
Correct Answer: A Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference: QUESTION 67
Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN? (Choose three.)
A. HDLC
B. Ethernet
C. Token Ring
D. PPP
E. FDDI
F. Frame Relay
Correct Answer: ADF Section: 1_IIII ( 51 -75) 1.c Explanation
Explanation/Reference:

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