單項選擇題

The relevant portion of the Barrymore router configuration is displayed below:
In your effort to conserve precious bandwidth, you set up some ACL's to deny internet access to the remote server located at 192.168.20.5. A few minutes after reconfiguring (as shown in the exhibit above) you notice that some web traffic is still going through.Based on the above output, what do you suspect as to why the traffic still traveling over the ISDN link?()

A. Broadcasts are creating "interesting" traffic.
B. The access-list is not configured correctly.
C. The command ip access-group 129 out is missing from the bri0/0 interface.
D. The dialer-group has not been applied to outbound traffic.


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1.單項選擇題Which one of the following commands will display the placement and direction of an IP access control list on the interfaces of a router?()

A. show interface list
B. show ip route
C. show ip interface
D. show ip interface brief
E. show interface

2.單項選擇題

On a newly installed router, the following access list is added to the HSSI interface for incoming traffic:Access-list 101 permit tcp any 10.18.10.0 0.0.0.255 eq tcp
What is the effect of the "any" keyword in the above access list?()

A. check any of the bits in the source address
B. permit any wildcard mask for the address
C. accept any source address
D. check any bit in the destination address
E. permit 255.255.255.255 0.0.0.0
F. accept any destination

3.單項選擇題

On your newly installed router, you apply the access list illustrated below to interface Ethernet 0 on a Cisco router. The interface is connected to the 192.168.1.8/29 LAN.
access-list 123 deny tcp 192.168.166.18 0.0.0.7 eq 20 any
access-list 123 deny tcp 192.168.166.18 0.0.0.7 eq 21 any
How will the above access lists affect traffic?()

A. All traffic will be allowed to exit E0 except FTP traffic.
B. FTP traffic from 192.168.166.19 to any host will be denied.
C. FTP traffic from 192.168.166.22 to any host will be denied.
D. All traffic exiting E0 will be denied.
E. All FTP traffic to network 192.168.166.18/29 from any host will be denied.

4.單項選擇題Which IOS user EXEC command will allow a network technician to determine which router in the path to an unreachable network host should be examined more closely for the cause of the network failure?()

A. TestKingB> telnet
B. TestKingB > ping
C. TestKingB > trace
D. TestKingB > show ip route
E. TestKingB > show interface
F. TestKingB > show cdp neighbors

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