CMS专题
多选题Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts?（）A15.234.118.63B92.11.178.93C134.178.18.56D192.168.16.87E201.45.116.159F217.63.12.192
题目
15.234.118.63
92.11.178.93
134.178.18.56
192.168.16.87
201.45.116.159
217.63.12.192
相似问题和答案
第1题：
Given that you have a class B IP address network range, which of the subnet masks below will allow for 100 subnets with 500 usable host addresses per subnet?
A．255.255.0.0
B．255.255.224.0
C．255.255.254.0
D．255.255.255.0
E．255.255.255.224
解析：Explanation:
Using the 2n-2 formula for host addresses, 29-2 = 510 host address, so a 9-bit subnet mask will provide the required number of host addresses. If these 9 bits are used for the hosts in a class B network, then the remaining 7 bits are used for the number of networks.
Again using the 2n-2 formula, we have 2n-2 = 126 networks that are available.
Incorrect Answers:
A. This will provide for only 1 network with 216-2 = 65534 hosts
B. This will provide for 6 networks with 8190 host addresses.
D. This will provide 254 networks and 254 hosts.
E. This will provide 2046 different networks, but each network will have only 30 hosts.
第2题：
You work as network consultant. Your customer, TestKing Inc, has a class C network license. TestKing wants you to subnet the network to provide a separate subnet for each of its 5 departments. Each subnet must support at least 24 hosts.Which network mask should you use?（）
A.255.255.255.192
B.255.255.255.224
C.255.255.255.240
D.255.255.255.248
E.255.255.255.252
F.255.255.255.254
第3题：
Using a subnet mask of 255.255.255.224, which of the IP addresses below can you assign to the hosts on this subnet? (Select all that apply)
A. 16.23.118.63
B. 87.45.16.159
C. 92.11.178.93
D. 134.178.18.56
E. 192.168.16.87
F. 217.168.166.192
C,D,E 解析：Explanation:
Since the subnet mask is 255.255.255.224, the number of network hosts that is available is 30. Every network boundary will be a multiple of 32. This means that every subnet will be a multiple (0, 32, 64, 96, 128, 160, 192, 224) and the broadcast address for each of these subnets will be one less this number (31, 63, 95, 127, 159, 191, 223).
Therefore, any IP address that does not end in one of these numbers will be a valid host IP address.
C. Valid Host in subnetwork 2 (92.11.178.64 to 92.11.178.95)
D. Valid Host in subnetwork 1 (134.178.18.32 to 134.178.18.63)
E. Valid Host in subnetwork 2 (192.168.16.64 to 192.168.16.95)
Incorrect Answers:
A. This will be the broadcast address for the 16.23.118.32/27 network.
B. This will be the broadcast address for the 87.45.16.128/27 network
F. This will be the network address for the 217.168.166.192/27 network.
第4题：
A network host is configured as follows: Host IP address: 192.168.16.183 Subnet mask: 255.255.255.224 Default gateway: 192.168.16.190 Which of the following statements describe the network to which this host is attached?（）
- A、The default gateway is configured on a different subnet form this host.
- B、The host is a member of the fifth usable subnet of the 192.168.16.0 network.
- C、The subnetwork address for this host is 192.168.16.160/28.
- D、The address of the next higher subnet is 192.168.16.192.
- E、The address of the router interface that is attached to this subnetwork is 192.168.16.190.
- F、There are 60 usable host addresses on this subnet.
正确答案:B,D,E
第5题：
Using a subnet mask of 255.255.255.224, which of the IP addresses below can you assign to the hosts on this subnet?（）
- A、16.23.118.63
- B、87.45.16.159
- C、92.11.178.93
- D、134.178.18.56
- E、192.168.16.87
- F、217.168.166.192
正确答案:C,D,E
第6题：
A.14
B.15
C.16
D.30
E.31
F.32
第7题：
A.15.234.118.63
B.92.11.178.93
C.134.178.18.56
D.192.168.16.87
E.201.45.116.159
F.217.63.12.192
第8题：
A.255.255.255.224
B.255.255.255.240
C.255.255.255.248
D.255.255.255.252
第9题：
The TestKing network is subnetted using 29 bits for the subnet mask. Which wild card mask should be used to configure an extended access list to permit or deny access to an entire subnetwork?（）
- A、255.255.255.224
- B、255.255.255.248
- C、0.0.0.224
- D、0.0.0.8
- E、0.0.0.7
- F、0.0.0.3
正确答案:E
第10题：
Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts?（）
- A、15.234.118.63
- B、92.11.178.93
- C、134.178.18.56
- D、192.168.16.87
- E、201.45.116.159
- F、217.63.12.192
正确答案:B,C,D