Question 1

Standards in the communications field generally promote the development and acceptance of a new technology and its applications.

Accepted Answer

Standards in the communications field help ensure compatibility, interoperability, and reliability among devices and systems, thereby promoting the development and widespread acceptance of new technologies and their applications.

Question 2

In general, an analog communications system is more reliable and requires much less maintenance than a comparable digital system.

Accepted Answer

Digital communications systems are generally more reliable and require less maintenance than analog systems because they are less susceptible to noise and signal degradation, and they can employ error detection and correction techniques to ensure data integrity.

Question 3

The electromagnetic spectrum is a finite resource. The more we use it, the more it is depleted, forever (as is the case with oil, etc.).

Accepted Answer

The electromagnetic spectrum is not depleted by use; it is a range of all types of electromagnetic radiation, and using it does not consume it in the way that physical resources like oil are consumed.

Question 4

In our communications system, the spectrum can be viewed as a financial commodity.

Accepted Answer

The spectrum refers to the range of electromagnetic frequencies used for communications, including radio, television, and mobile data. It is limited and cannot be expanded, making it a valuable and finite resource. Therefore, it is often treated as a financial commodity, with governments and regulatory bodies auctioning spectrum licenses to the highest bidders among telecommunications companies, who then use this spectrum to provide services to consumers.

Question 5

The television sets and telephones we use at home are digital in nature: we can directly process their digital data.

Accepted Answer

The answer of The television sets and telephones we use...

Question 6

When a black and white video camera's signal is digitized, the information represents steps/levels of the __________ scale.&#10;A) musical&#10;B) color&#10;C) color palette&#10;D) gray

Accepted Answer

When a black and white video camera's signal is digitized, the information represents steps or levels of the gray scale, as it captures variations in brightness, not color.

Question 7

Your company is designing a new, compact video camera. To save space and weight, you will use solid-state chips called ________.&#10;A) siliconian circuits&#10;B) integral circuits&#10;C) klingonian circuits&#10;D) integrated circuits

Accepted Answer

Integrated circuits are solid-state chips used in various electronic devices, including compact video cameras, to save space and weight by integrating a large number of tiny transistors into a small chip.

Question 8

One of the most popular and important transmission/communications lines is the ______ line.&#10;A) A1&#10;B) M1&#10;C) T1&#10;D) S1

Accepted Answer

The T1 line is a popular and important type of transmission/communications line, widely used for carrying data and voice signals.

Question 9

An integrated, digital communications network that can carry a range of information, is the______.8&#10;A) ISDN&#10;B) UNCL&#10;C) ISSS&#10;D) Integrated Digital Line

Accepted Answer

ISDN stands for Integrated Services Digital Network, which is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network.

Question 10

A ______ links a computer with a standard, voice-grade telephone line.&#10;A) AAD&#10;B) modem&#10;C) parallel interface&#10;D) ACC

Accepted Answer

A modem (modulator-demodulator) is the device that links a computer to a standard, voice-grade telephone line, allowing the computer to communicate over the Internet or with other computers by converting digital data to analog signals and vice versa.

Question 11

The term &#34;hertz&#34; refers to a signal's ______.&#10;A) wavelength&#10;B) frequency&#10;C) height&#10;D) amplitude

Accepted Answer

The answer of The term &#34;hertz&#34; refers to a signal's...

Question 12

______ is the term associated with a communications line's channel capacity (capability to relay a given volume of information in a specific time period).&#10;A) Bandwidth&#10;B) Bandlength&#10;C) CFG&#10;D) Frequency Determination

Accepted Answer

The answer of ______ is the term associated with a...

Deck 2: Technical Foundations of Modern Communication