單項選擇題An administrator attempts a traceroute but receives a "Destination Unreadable" message. Which protocol is responsible for that message?()

A. RARP
B. RUDP
C. ICMP
D. SNMP


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1.單項選擇題When a host transmits data across a network to another host, which process does the data go through?()

A. standardization
B. conversion
C. encapsulation
D. synchronization

2.單項選擇題A network admin wants to know every hop the packets take when he accesses cisco.com. Which command is the most appropriate to use?()

A. path cisco.com
B. debug cisco.com
C. trace cisco.com
D. traceroute cisco.com

3.單項選擇題Which line from the output of the show ip interface command indicates a layer 1 problem?()

A. Serial0/1 is up, line protocol is down
B. Serial0/1 is down, line protocol is down
C. Serial0/1 is up, line protocol is up
D. Serial0/1 is administratively down, line protocol is down

4.單項選擇題Which statement about IPv6 is true?()

A. Addresses are not hierarchical and are assigned at random.
B. Only one IPv6 address can exist on a given interface.
C. There are 2.7 billion addresses available.
D. Broadcasts have been eliminated and replaced with multicasts.

5.單項選擇題Which statement about RIPng is true?()

A. RIPng allows for routes with up to 30 hops.
B. RIPng is enabled on each interface separately.
C. RIPng uses broadcasts to exchange routes.
D. There can be only one RIPng process per router.

6.單項選擇題Which term describes the process of encapsulating IPv6 packets inside IPv4 packets?()

A. tunneling
B. hashing
C. routing
D. NAT

7.單項選擇題What is the first 24 bits in a MAC address called?()

A. NIC
B. BIA
C. OUI
D. VAI

8.單項選擇題When is it necessary to use a public IP address on a routing interface?()

A. Connect a router on a local network.
B. Connect a router to another router.
C. Allow distribution of routes between networks.
D. Translate a private IP address.
E. Connect a network to the Internet.

9.單項選擇題What will happen if a private IP address is assigned to a public interface connected to an ISP?()

A. Addresses in a private range will be not routed on the Internet backbone.
B. Only the ISP router will have the capability to access the public network.
C. The NAT process will be used to translate this address in a valid IP address.
D. Several automated methods will be necessary on the private network.
E. A conflict of IP addresses happens, because other public routers can use the same range.

10.單項選擇題Which IP address can be assigned to an Internet interface?()

A. 10.180.48.224
B. 9.255.255.10
C. 192.168.20.223
D. 172.16.200.18

最新試題

At which layer of the OSI model dose PPP perform?()

題型:單項選擇題

Which statement is true, as relates to classful or classless routing?()

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Which statement describes the rule of split horizon?()

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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?()

題型:單項選擇題

An employee of ABC company has move to an office on a different floor. Although the administrator is able to telnet to all of the routers,the address of Switch F is needed in order to verify that the employee remains in the same VLAN.Which action could be used by the administrator to find the IP address of Switch F?()

題型:單項選擇題

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

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Which command is used to display the collection of OSPF link states?()

題型:單項選擇題

A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem?()Router(config)#router ospf 1Router(config-router)#network 10.0.0.0 255.0.0.0 area 0

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Which protocol reduces administrative overhead in a switched network by allowing the configuration of a new VLAN to be distributed to all the switches in a domain?()

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Three access ports have been installed and configured to a small office.What term defines the wireless topology?()

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