6-4 Communication and Technology

Which of the following statements about signal noise is true?

• It affects analog and digital signals in similar ways

• It affects digital signals more than analog signals

• It affects analog signals more than digital signals

• It has little effect on either digital or analog signals

The amount of information that can be transmitted as digital signals

• bandwidth

• resolution

• hardware

• noise

Modern IT consists of computer and telecommunications hardware and software store, receive, _______and ________ information

• transmit, manipulate

• compile, process

• store, access

• analyze, interpret

Software refers to programs that encode, decode, and ________ information

• Interpret

• Store

• Transmit

Every year, ________ of gigabytes of information are produced on Earth

• hundreds

• millions

• billions

• trillions

Each of the following are types of transmissions we depend on EXCEPT

• Electronic signals carried by wires

• electromagnetic transmissions through the atmosphere

• electromagnetic transmissions through fiber-optic cables

• longitudinal transmissions through the atmosphere

Compare the growth rate from 2011-2013 to the rate from 2015-2017

• the rate of growth increased more sharply

• the rate of growth decreased sharply

• the rate of growth remained the same

• the rate of growth increased slightly

Because digital signals consist of 0's and 1's, it is ______ difficult for noise to alter the signal

• more

• less

• equally

Both analog and digital signals are vulnerable to security breaches

• true

• false

A cable that provides a home with television and Internet can allow ________ data to be downloaded/uploaded if it carries ________ signals

• more, digital

• less, digital

• more, analog