单项选择题

Which command is used to display the placement and direction of an IP access control list on a router?（）

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

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单项选择题

What is the purpose of typing o/r 0x2142 during a password recover procedure on a 2500 series router?（）

A. To restart the router.
B. To bypass the configuration in NVRAM.
C. To view the lost password.
D. To save the changes to the configuration.
E. To enter ROM Monitor mode.

单项选择题

New switches have been purchased for a network upgrade. The objective for the network design emphasizes efficient, error-free transport instead of fast transport.Which switching mode should be configured on the new switches to provide error-free transport to the network? （）

A. cut-through
B. fragment-free
C. frame-filtering
D. store-and-forward
E. 802.1q forwarding
F. VTP transparent mode

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The network 172.12.0.0 needs to be divided into subnets where each subnet has the capacity of 458 IP addresses.What would be the correct subnet mask to accomplish this division keeping the number of subnets at the maximum? （）

A.255.255.254.0
B.255.255.254.1
C.255.255.254.2
D.255.255.254.3