Exam 5: Lans and Wlans

____________________ switching essentially establishes a private link between one telephone and another for the duration of a call.

War ____ is when wireless snoops writer specific symbols on walls, sidewalks, or lampposts to signal other wireless network seekers that they can tap into a network in the area.

A(n) ring topology uses a common backbone to connect all network devices.

In ____ key encryption, the key used to encrypt a message is also used to decrypt the message.

What are the limitations of powerline networks?

A ____ network makes use of a building's existing telephone cables to connect network devices.

Critical Thinking questions (Multiple Choice) You would use a LAN to ____.

Dial-up Internet access is a(n) ____ communications system.

When personal computer users want to encrypt e-mail or other documents, they turn to ____.

Case 3 You have just secured a new job with a new firm that has a lot of industrial secrets to protect, or else risk loss of their competitive advantage. Your role is to learn as much as possible about encryption so you can help the firm keep their initiatives confidential until they are released to the market. If you use public key encryption, after a browser uses the public key to encrypt a credit card number, who can use the public key to decrypt the message?

In the early years of personal computers, networks were scarce.

1. 2. 3. In the figure above, the network marked 2 is configured in a(n) bus topology.

In a client/server network, a server is the most important resource.

Define client/server network.

The best type of wireless encryption is WPA2 , so use it if all the devices on your network support it.

A LAN ____________________ is a gathering of people who connect their own computers to a LAN, usually to play multiplayer computer games.

The figure above depicts a(n) ____ type of network.

Define powerline network.

____ technology uses two or more antennae to essentially send multiple sets of signals between network devices.