单项选择题

What should the configuration register value be after successfully completing the password recover procedure and returning the router to normal operation? （）

A.0x2100
B.0x2101
C.0x2102
D.0x2124
E.0x2142

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单项选择题

The following access list was applied outbound on he E0 interface connected to the 192.168.1.8/29 LAN:
access-list 123 deny tcp 192.168.1.8 0.0.0.7 eq 20 any
access-list 123 deny tcp 192.168.1.9 0.0.0.7 eq 21 any
What effect will this access list have?（）

A. All traffic will be allowed to exit E0 except FTP traffic.
B. FTP traffic from 192.168.1.22 to any host will be denied.
C. FTP traffic from 192.168.1.9 to any host will be denied.
D. All traffic exiting E0 will be denied.
E. All FTP traffic to network 192.168.1.8/29 from any host will be denied.

多项选择题

Which of the following describe router functions?（）

A. Packet switching
B. Collision prevention on a LAN segment
C. Packet filtering
D. Broadcast domain enlargement
E. Broadcast forwarding
F. Internetwork communication

单项选择题

A Class C network address has been subnetted with a /27 mask.Which of the following addresses is a broadcast address for one of the resulting subnets?（）

A.201.57.78.33
B.201.57.78.64
C.201.57.78.97
D.201.56.78.97
E.201.57.78.159
F.201.57.78.254