Exam 10: Communications and Networks

____________________ is a network technology that defines how messages are routed from one end of a network to the other, ensuring the data arrives correctly by dividing it into packets.

For radio transmissions, a transmitter is needed to send the broadcast radio signal and a receiver to accept it.

The fifth generation of cellular transmissions is expected to provide artificial intelligence capabilities on wearable devices.

Bus networks are unpopular on LANs because they are expensive and difficult to install.

Critical Thinking Questions Case 10-2 The area of network communications standards is an area with which you are not familiar, so you have decided to study it in some detail. You expect to have to network a wide range of devices in the near future, so this is a timely subject of study. You are looking for a technology that will replace the requirement for a line-of-sight transmission between devices like digital cameras, fax machines, and printers, and you also would like the data transfers between the devices to occur at a rate of up to 3 Mbps. Which of the following network standards is a good match for your needs?

COGNITIVE ASSESSMENT You love to take pictures of your family. What standard do you use to print pictures directly from your camera?

Which of the following did Sven Mattisson and Jaap Haartsen invent?

COGNITIVE ASSESSMENT In reference to computer communications, what does the term noise mean?

Digital communications describes a process in which two or more computers or devices transfer all of the following EXCEPT ____.

COGNITIVE ASSESSMENT What kind of communications device sends and receives data and information to and from a digital line, such as ISDN and cable?

COGNITIVE ASSESSMENT What is a receiving device?

How many wired and/or wireless computers and mobile devices might a router be able to connect?

Discuss an intranet and include a definition of an extranet.

A MAN usually is managed by a consortium of users or by a single network provider that sells the service to the users.

Who invented the Ethernet?

On a network such as the one illustrated in the accompanying figure, some servers perform a specific task and can be placed with other servers to perform multiple tasks. What are these kind of servers call?

One of the more widely used transmission media for network cabling and landline phone systems is twisted-pair cable.

COGNITIVE ASSESSMENT What is another term for servers that control access to the hardware, software, and other network resources?

COGNITIVE ASSESSMENT Which of the following technologies is your new wireless headset most likely to use?

Which of the following kinds of modems is a modem that sends and receives digital data over and information to and from a digital line?