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、255.255.0.0B、255.255.224.0C、255.255.254.0D、255.255.255.0E、255.255.255.224

If we have given you any cause() dissatisfied , we should be glad to know of it .

A. to be

B. of

C. for

D. to

You have recently created a serializable class named Vehicle.The class is shown below:[Serializable]public class Vehicle{public string VIN;public string Make;public string Model;public string Year;}You are planning to create a custom formatter class to control the formatting of Vehicle objects when they are serialized.You need to ensure that is achieved with as little development effort as possible.What should you do?（）

A.

B.

C.

D.

29． Which of the following is NOT true?

A． The test is the most important for a student．

B． After class ,you should review what you have learned．

C． You should listen to your teacher and take notes carefully in class．

D． When you plan your time ,you should think of the time for eating ,sleeping and so on

You are the network administrator setting up the IP network for a new branch office. You need at least 5 networks with 25 hosts each. You have been allocated a /24 network.Which prefix length will satisfy the given requirements?（）

A./24

B./26

C./27

D./28

A、which

B、that

C、all what

D、all that

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 for this point to point link?

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

F. None of the above

Exhibit:You are creating a composite control for capturing user address information in a Web application. You define a number of properties that the user can set at design time. You need to group these properties in the Properties dialog box. In addition, you need to ensure that when users click on a particular property, they receive a short explanation of that property. The properties are shown in the exhibit. Which two actions should you perform?（）

A. Attach the Category attribute class to the controls class definition. Set its value to UserAddress. Mark the class as public.

B. Attach the Browsable attribute class to each property in the group. Set its value to True. Mark the property as private.

C. Attach the Category attribute class to each property in the group. Set its value to UserAddress. Mark the property as public.

D. Attach the Description attribute class to each property in the group. Set each value to a description of the given property.

E. Attach the DefaultProperty attribute class to each property in the group. Set each value to a description of the given property.

A、Had you not given me

B、I had not given

C、You had not given me

D、Had I not given

Bob: Would you like a cigarette?

Jason: No, thank you. I've given up smoking. Bob:_______

A、Ok.Go ahead and do it

B、All right.Take care.

C、Well,you don't mind if I have one,do you?

D、Sorry,have another one then.

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