單項選擇題Which component of VPN technology ensures that data can be read only by its intended recipient?()

A. data integrity
B. encryption
C. key exchange
D. authentication


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2.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

3.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

4.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

5.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.

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

題型:單項選擇題

The network administrator cannot to switch 1 over a telnet session,although the hosts attached to switch 1 can ping the interface Fa0/0 of the router.Given the information in the graphic and assuming that the router and switch2 are configured properly,which of the following commands should be issued on switch 1 to correct this problem?()

題型:單項選擇題

Which IPsec security protocol should be used when confidentiality is required?()

題型:單項選擇題

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?()

題型:單項選擇題

Which statement describes the rule of split horizon?()

題型:單項選擇題

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

題型:單項選擇題

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

題型:單項選擇題

While troubleshooting a network problem,a technician discovers that the current copy of the Cisco IOS is outdated and needs to be updated.Which of the following commands would the technician issue to replace the Cisco router IOS with the newer version?()

題型:單項選擇題

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

題型:單項選擇題

Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?()

題型:單項選擇題