The default subnet mask for a Class B network is:

• A.255.0.0.0
• B.0.0.0.255
• C.0.0.255.255
• D.255.255.0.0

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Two companies want to share data by using the Internet.
Which type of network provides the solution?

• A.Ethernet
• B.Intranet
• C.Extranet
• D.Perimeter

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What are two characteristics of the CSMA/CD access method? (Choose two.)

• A.It signals its intent to transmit on the network.
• B.It checks to see if a collision has been detected.
• C.It waits until the transmission medium is idle.
• D.It does a round robin search for requests to transmit from all nodes on the network.

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A VPN is a/an:

• A.personal network for your use only.
• B.encrypted connection across the Internet.
• C.communication tunnel between VLANs.
• D.virtual network within your local area network (LAN).

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In which physical network topology is each computer connected to a central point?

• A.Star
• B.Mesh
• C.Ring
• D.Bus

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