单项选择题
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
单项选择题 You work as an 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. ABC.com has a server， named ABC-SR07， which has the ADDS， DHCP， and DNS server roles installed. ABC.com also has a server， named ABC-SR08， which has the DHCP， and Remote Access server rolesinstalled. You have configured a server， which has the File and Storage Services server role installed， to automatically acquire an IP address. The server is named ABCSR09.You then create reservation on ABC-SR07， and a filter on ABC-SR08. Which of the following is a reason for this configuration？（）
多项选择题 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 and all client computers have Windows 8 installed.You install the DHCP server services on a server named ABC_SR02 and configure a DHCP scope for the ABC.com network. You want ABC_SR02 to automatically assign IP configurations to all client computers on the network. How would you accomplish this task？（）
单项选择题 You work as an 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. ABC.com has a server， named ABC-SR13， which is configured as the primary DNS server in the ABC.com domain. ABC.com has another server， named ABC-SR14， which makes use of ABCSR13 for DNS queries.You want to make sure that running nslookup.exe from ABC-SR14 produces a result that shows the proper name of the default server. Which of the following actions should you take？（）