Your ISP assigned you a full class B a...

多项选择题Your ISP assigned you a full class B address space. From this, you need at least 300 sub-networks that can support at least 50 hosts each. Which of the subnet masksbelow are capable of satisfying your needs?（）

A.255.255.255.0
B.255.255.255.128
C.255.255.252.0
D.255.255.255.224
E.255.255.255.192
F.255.255.248.0

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1.单项选择题How many usable IP addresses can you get from a conventional Class C address?（）

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

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2.多项选择题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.

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3.单项选择题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

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4.单项选择题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

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5.单项选择题You have a class C network, and you need to design it for 5 usable subnets with each subnet handling a minimum of 18 hosts each. Which of the following network masks should you use?（）

A.225.225.224.0.
B.225.225.240.0.
C.225.225.255.0.
D.255.255.255.224
E.225.225.255.240

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6.单项选择题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

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7.单项选择题The IP network 210.106.14.0 is subnetted using a /24 mask. How many usable networks and host addresses can be obtained from this?（）

A. 1 network with 254 hosts
B. 4 networks with 128 hosts
C. 2 networks with 24 hosts
D. 6 networks with 64 hosts
E. 8 networks with 36 hosts

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8.多项选择题 Your ISP has assigned you the following IP address and subnet mask:
IP address: 199.141.27.0
Subnet mask: 255.255.255.240
Which of the following addresses can be allocated to hosts on the resulting subnet?（）

A.199.141.27.2
B.199.141.27.175
C.199.141.27.13
D.199.141.27.11
E.199.141.27.208
F.199.141.27.112

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9.多项选择题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

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10.单项选择题Your network uses the172.12.0.0 class B address. You need to support 459 hosts per subnet, while accommodating the maximum number of subnets. Which mask wouldyou use?（）

A.255.255.0.0.
B.255.255.128.0.
C.255.255.224.0.
D.255.255.254.0.

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