單項(xiàng)選擇題You have a single Class C IP address and a point-to-point serial link that you want to implement VLSM on. Which subnet mask is the most efficient?（）

A. 255.255.255.0
B. 255.255.255.240
C. 255.255.255.248
D. 255.255.255.252
E. 255.255.255.254


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1.單項(xiàng)選擇題On the topic of VLSM, which one of the following statements best describes the concept of the route aggregation?（）

A. Deleting unusable addresses through the creation of many subnets.
B. Combining routes to multiple networks into one supernet.
C. Reclaiming unused space by means of changing the subnet size.
D. Calculating the available host addresses in the AS.



2.單項(xiàng)選擇題Which one of the following varieties of NAT utilizes different ports to map multiple IP addresses to a single globally registered IP address?（）

A. Static NAT
B. Port loading
C. NAT Overloading
D. Dynamic NAT
E. None of the above

3.單項(xiàng)選擇題A TestKing PC has the IP address 172.16.209.10 /22. What is the subnet of this address?（）

A.172.16.42.0
B.172.16.107.0
C.172.16.208.0
D.172.16.252.0
E.172.16.254.0


5.單項(xiàng)選擇題How many usable IP addresses can you get from a conventional Class C address?（）

A.128
B.192
C.254
D.256
E.510

6.多項(xiàng)選擇題You have a class B network with a 255.255.255.0 mask. Which of the statements below are true of this network?（）

A. There are 254 usable subnets.
B. There are 256 usable hosts per subnet.
C. There are 50 usable subnets.
D. There are 254 usable hosts per subnet.
E. There are 24 usable hosts per subnet.
F. There is one usable network.

7.單項(xiàng)選擇題The 201.145.32.0 network is subnetted using a /26 mask. How many networks and IP hosts per network exists using this subnet mask?（）

A. 4 networks with 64 hosts
B. 64 networks and 4 hosts
C. 2 networks and 62 hosts
D. 62 networks and 2 hosts
E. 6 network and 30 hosts

8.單項(xiàng)選擇題The 213.115.77.0 network was subnetted using a /28 subnet mask. How many usable subnets and host addresses per subnet were created as a result of this?（）

A. 2 networks with 62 hosts
B. 6 networks with 30 hosts
C. 16 networks and 16 hosts
D. 62 networks and 2 hosts
E. 14 networks and 14 hosts
F. None of the above

最新試題

Identify three valid host addresses in the 192.168.27.0 network with a subnet mask of 255.255.255.240. （）

題型：多項(xiàng)選擇題

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題型：?jiǎn)雾?xiàng)選擇題

Which characteristics are representative of a link-state routing protocol?（）

題型：多項(xiàng)選擇題

Which of the following if addresses can be assigned to host devices?（）

題型：多項(xiàng)選擇題

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? （）

題型：?jiǎn)雾?xiàng)選擇題

TestKing.com has allocated the IP add 199.144.27.0 is its network, to provide flexibility for the LAN design, a subnet mask of 255.255.255.240 has been chosen. Which of the following address can be assigned to LAN on the resulting subnets.（）

題型：多項(xiàng)選擇題

Which Frame Relay feature is responsible for transmitting keepalives to ensure that the PVC does not shut down because of inactivity?（）

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

題型：?jiǎn)雾?xiàng)選擇題

An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location? （）

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Which connections allow the use of full-duplex Ethernet?（）

題型：多項(xiàng)選擇題