Exam 5: Local Area Networks

A LAN would be used to ____.

Symptoms of network problems include which of the following?

A ____ is a public high-speed network capable of voice and data transmission within a range of about 50 miles.

____ is a crucial technology for e-commerce and e-mail.

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 a particular folder into which he wants to allow people to put files without allowing them to open,copy,or change any files in that folder.What kind of permission should Thomas assign to this folder?

Which of the following is a disadvantage of using a wireless network when compared to a wired network?

-In the accompanying figure,the item on the right can be installed in an expansion slot inside the system unit of a desktop computer.

Most wireless networks transport data as ____ signals.

In areas where there are overlapping wireless networks,such as in a city or on a college campus,____ help you log in to the right network,rather than a network run by a hacker who will try to suck important information off your computer as soon as you connect.

A ____ is a term sometimes used to refer to the interconnection of personal digital devices or consumer electronics within a range of about 30 feet and without the use of wires or cables.

You have just secured a new job with a new firm that is very security conscious. You've been instructed to learn as much as possible about encryption to ensure the confidentiality of customer transactions as well as electronic communications about new research and development projects. -You decide to use public key encryption to protect e-commerce transactions.Once the browser uses the public key it receives from the server to encrypt the credit card information,who can decrypt the message?

The original Ethernet standard carried data over a coaxial cable bus topology at ____.

MATCHING Identify the letter of the choice that best matches the phrase or definition. -A set of rules for efficiently transmitting data from one network node to another

____________________ connectivity replaces the short cables that would otherwise tether a mouse,keyboard,game controller,or similar device to a computer.

The bandwidth of a digital channel is usually measured in ____________________ per second (bps).

On an Ethernet,a ____ is broadcast to every device but is accepted only by the device to which it is addressed.

Which of the following is NOT a type of network device?

A ____ is a network device that extends a wired network by adding additional ports.

Public key encryption uses one key to encrypt a message and another key to decrypt it._________________________

Transmission signals can be disrupted by interference called ____________________,which has the potential to corrupt data.