You have a Class C network, and you need ten subnets. You wi

You have a network containing 120 routers. You must establish and maintain connectivity between the loopback interfaces of all routers. Because of the critical services using the network, you need redundancy and fast failover. Which routing protocol should you use in this scenario?（）

A. OSPF

B. RIP

C. BGP

D. static

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 would you use?

A．255.255.0.0.

B．255.255.128.0.

C．255.255.224.0.

D．255.255.254.0.

E．None of the above

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.

Ezonexam has a Class C network and you need ten subnets. You wish to have as many addresses available for hosts as possible. Which one of the following subnet masks should you use?

A．255.255.255.192

B．255.255.255.224

C．255.255.255.240

D．255.255.255.248

E．None of the above

You have a computer that runs Windows Vista. You create a virtual private network (VPN) connection between the computer and your company’s network.You notice that while the computer is connected through the VPN connection, users on the company network can access shared folders on the computer.You need to prevent network users from accessing your shared folders when you are connected to the company’s network by using the VPN connection.What should you do?（）

A.A

B.B

C.C

D.D

A. /27

B. /28

C. /29

D. /30

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

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

You have a computer that runs Windows Vista.You connect to your company’s network by using a virtual private network (VPN) connection. You notice that when you establish the VPN connection, you are unable to access Internet Web sites. When you disconnect the VPN connection, you can access Internet Web sites.You need to access Internet Web sites while you are connected to the VPN connection.What should you do?（）

A.A

B.B

C.C

D.D

A. 255.255.255.192

B. 255.255.255.224

C. 255.255.255.240

D. 255.255.255.248

E. None of the above