Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts?（）A、15.234.118.63B、92.11.178.93C、134.178.18.56D、192.168.16.87E、201.45.116.159F、217.63.12.192

第1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

第2题：

Given an IP address 172.16.28.252 with a subnet mask of 255.255.240.0, what is the correct network addres?（）

• A、172.16.16.0
• B、172.16.24.0
• C、172.16.0.0
• D、172.16.28.0

第3题：

The network administrator is asked to configure 113 point-to-point links.Which IP addressing scheme best defines the address range and subnet mask that meet the requirement and waste the fewest subnet and host addresses?（）

• A、10.10.0.0/18 subnetted with mask 255.255.255.252
• B、10.10.0.0/25 subnetted with mask 255.255.255.252
• C、10.10.0.0/24 subnetted with mask 255.255.255.252
• D、10.10.0.0/23 subnetted with mask 255.255.255.252
• E、10.10.0.0/16 subnetted with mask 255.255.255.252

第4题：

Which two statements are true of a network mask?（）

• A、A subnet mask specifies the portion of an IP address that is in a binary format
• B、A subnet mask specifies the portion of an IP address that is in a decimal format
• C、A subnet mask specifies the portion of an IP address that represents a network prefix
• D、A subnet mask specifies the portion of an IP address that represetns network hosts

第5题：

Your company has recently deployed a server that runs Windows Server 2008. The server has the IP information shown below. IP address 192.168.46.186 Subnet mask： 255.255.255.192 Default gateway： 192.168.46.1 Users on remote subnets report that they are unable to connect to the server. You need to ensure all users are able to connect to the server. What should you do？ （）

• A、 Change the IP address to 192.168.46.129
• B、 Change the IP address to 192.168.46.200
• C、 Change the subnet mask to a 24-bit mask
• D、 Change the subnet mask to a 27-bit mask.

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第11题：

A network administrator provides an IP address of 128.135.0.142 and a subnet mask of 255.0.0.0.  Once a ping is attempted， it fails.  Which of the following options is the most probable cause of the failed ping？（）

• A、0 is not valid in an IP address
• B、128 is a reserved network
• C、The subnet mask should be 255.255.0.0. since it is a class B
• D、A network problem has occurred since IP and subnet are valid

第12题：

You are a systems administrator and you are about to assign static IP addresses to various servers on your network. For the network 192.168.20.24/29 the router is assigned to the first usable host address, while the last usable host address goes to your Sales server. Which one of the following commands would you enter into the IP properties box of the sales server?（）

• A、IP address: 192.168.20.14 Subnet Mask: 255.255.255.248 Default Gateway:192.168.20.9
• B、IP address: 192.168.20.254 Subnet Mask: 255.255.255.0 Default Gateway:192.168.20.1
• C、IP address: 192.168.20.30 Subnet Mask 255.255.255.248 Default Gateway:192.168.20.25
• D、IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway:192.168.20.17
• E、IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway:192.168.20.25

第13题：

Which two statements are true of a network mask?（）

• A、A subnet mask specifies the portion of an IP address that is in a binary format.
• B、A subnet mask specifies the portion of an IP address that is in a decimal format.
• C、A subnet mask specifies the portion of an IP address that represents a network prefix.
• D、A subnet mask specifies the portion of an IP address that represents network hosts.

第14题：

You work as a network administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers on the ABC.com network have Windows Server 2012 R2 installed.The network as a server named ABC_SR05 that provides DHCP services.  You need to create a new IPv4 subnet on the network. The subnet must support a maximum of 5，000 hosts and must have a few unused addresses as possible.  How would you configure DHCP to support this subnet？（）

• A、You should use a subnet mask of 255.255.255.0.
• B、You should use a subnet mask of 255.255.248.0
• C、You should use a subnet mask of 255.255.240.0.
• D、You should use a subnet mask of 255.255.224.0
• E、You should use a subnet mask of 255.255.128.0
• F、You should use a subnet mask of 255.255.0.0

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