Question 551. Which of the following might be used by a company to satisfy its growing communications needs?

Question 552. Different computers are connected to a LAN by a cable and a/an

Question 553. The loss in signal power as light travels down the fiber is called

Question 554. Which layer of international standard organization's OSI model is responsible for creating and recognizing frame boundaries?

Question 555. What is the name given to the exchange of control signals which is necessary for establishing a connection between a modem and a computer at one end of a line and another modem and computer at the other end?

Question 556. When a host knows its physical address but not its IP address, it can use _____.

Question 557. A characteristic of a multiprogramming system is:

Question 558. A communications medium that uses pulses of laser light in glass fibers. Select the best fit for answer:

Question 559. The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer

Question 560. Which utility is useful for troubleshooting NetBIOS name resolution problems?