Exam 5: Local Area Networks

In the context of networks,the communications ____________________ refers to the set of rules for efficiently transmitting data from one network node to another.

-A more efficient alternative to packet switching is shown in the accompanying figure._________________________

The best-known communications protocol is probably SMTP,which regulates Internet data transport._________________________

Microwaves are electromagnetic signals that can be aimed in a single direction and have more carrying capacity than radio waves._________________________

The process of converting ciphertext into plaintext is called ____.

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

Thomas is a network expert, having mastered the finer points of network structure, topology, and geographical scope. He has built many different types of networks at home, school, and work. He is now designing a home network for his friend. -Thomas's friend has indicated that he will accept the system that Thomas is constructing for him.However,he is concerned about security risks and wants to know what limits he can place on the system.Which of the following is NOT a true statement that Thomas can make to his friend?

Which of the following is true about Bluetooth?

A packet always travels from the source directly to the destination,never traveling through intermediate routing devices.

An encrypted message is referred to as ____.

Which of the following is NOT an advantage of using a wired network?

-As illustrated in the accompanying figure,Windows should automatically find the network ____ and ask you to enter the wireless encryption key or passphrase.

What are microwaves and how do they transport data?

____,also referred to as personal mode,is a type of WPA used on most home networks.

If a network interface card is not built into the main system board of a computer,it can be added to a slot in the system board or to a(n)____________________ port.

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

Windows automatically senses nearby networks and displays their SSIDs.

A ____ is a procedure for encrypting or decrypting a message.

The most important network device is a ____.

Wireless ____ scrambles the data transmitted between wireless devices and then unscrambles the data only on devices that have a valid key.