單項(xiàng)選擇題Which layer 2 protocol encapsulation type supports synchronous and asynchronous circuis and has built-in security mechanisms?()

A. Frame Relay
B. HDLC
C. x.25
D. PPP


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1.單項(xiàng)選擇題In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?()

A. after broken links are re-established
B. in an improperly implemented redundant topology
C. when upper-layer protocols require high reliability
D. during high traffic periods
E. when a dual ring topology is in use

2.單項(xiàng)選擇題Which command sets and automatically encrypts the privileged enable mode password?()

A. enbale password c1sco
B. secret enable c1sco
C. password enable c1sco
D. enable secret c1sco

3.單項(xiàng)選擇題Which statement is true?()

A. An IPv6 address is 64 b long and is represented as hexadecimal characters.
B. An IPv6 address is 32 b long and is represented as decimal digits.
C. An IPv6 address is 128 b long and is represented as decimal digits.
D. An IPv6 address is 128 b long and is represented as hexadecimal characters.

4.單項(xiàng)選擇題When upgrading the IOS image, the network administrator receives the exhibited error message. What could be the cause of this error?()

A. The new IOS image is too large for the router flash memory.
B. The TFTP server is unreachable from the router.
C. The new IOS image is not correct for this router platform.
D. The IOS image on the TFTP server is corrupt.
E. There is not enough disk space on the TFTP server for the IOS image.

5.單項(xiàng)選擇題

This graphic shows the results of an attempt to open a Telnet connection to router ACCESS1 from router Remote27. Which of the following command sequences will correct this problem? ()

A. ACCESS1(config)# line console 0 ACCESS1(config-line)# password cisco
B. Remote27(config)# line console 0 Remote27(config-line)# login Remote27(config-line)# password cisco
C. ACCESS1(config)# line vty 0 4 ACCESS1(config-line)# login ACCESS1(config-line)# password cisco
D. Remote27(config)# line vty 0 4 Remote27(config-line)# login Remote27(config-line)# password cisco
E. ACCESS1(config)# enable password cisco
F. Remote27(config)# enable password cisco

6.單項(xiàng)選擇題

A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?()

A. The OSPF area is not configured properly.
B. The priority on R1 should be set higher.
C. The cost on R1 should be set higher.
D. The hello and dead timers are not configured properly.
E. A backup designated router needs to be added to the network.
F. The OSPF process ID numbers must match.

9.單項(xiàng)選擇題The Frame Relay network in the diagram is not functioning properly. What is the cause of the problem?()

A. The Gallant router has the wrong LMI type configured
B. Inverse ARP is providing the wrong PVC information to the Gallant router
C. The S3 interface of the Steele router has been configured with the frame-relay encapsulation ietf command
D. The frame-relay map statement in the Attalla router for the PVC to Steele is not correct
E. The IP address on the serial interface of the Attalla router is configured incorrectly

10.單項(xiàng)選擇題A default Frame Relay WAN is classified as what type of physical network?()

A. point-to-point
B. broadcast multi-access
C. nonbroadcast multi-access
D. nonbroadcast multipoint
E. broadcast point-to-multipoint

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Which address is the IPV6 all-RIP-routers muticast group address that is used by RIPng as the destaion address?()

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How are VTP advertisements delivered to switches across the network?()

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Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?()

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Which device might be installed at a branch office to enable and manage an IPsec site-to-site VPN?()

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On which options are standard access list based?()

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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?()

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Which command displays the CHAP authentication process as it occurs between two routers?()

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A network administrator needs to configure a serial link between the main office and a remote location.The router at the remote office is a non-cisco router. How should the network administrator configure the serial interface of the main office router to make the connection?()

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You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the max number of subnets.Which network address and subnet mask meet this requirement?()

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