Modern Electronic Communication by Gary Miller Chapter 10 with Answers

Chapter 10 Network Communications

1	An interconnection of users that allows communication with one another is known as a
	a. Modem
	b. UART
	c. Network
	d. Protocol
2	A complex LC filter that removes delay distortion from signals that are traveling down long transmission lines is called a(n)
	a.. Delay equalizer
	b. UART
	c. Attenuation distortion filter
	d. Trunk switcher
3	Which of the following is not a way that designers of telephone equipment are adapting to the increasing use of computers and digital coding in telephone communication links?
	a. The use of shorter transmission lines
	b. The use of computers in finding unused portions of multiplex systems to maximize use
	c. The application of digital switching theory to increase channel capacity
	d. Sharing of communication links by voice and data signals
4	The advanced mobile phone services (AMPS) is an example of
	a. A cellular telephone system
	b. A telephone system that uses frequency reuse
	c. A cell-splitting telephone system
	d. All the above
5	Which is not a major function of a protocol?
	a. Framing
	b. Line control
	c. Flow control
	d. Topology
	e. Sequence control
6	The LAN that was developed by Xerox, Digital Equipment Corporation, and Intel in 1980 is called
	a. IEEE-488
	b. Ethernet
	c. OSI
	d. CSMA/CD
7	A device interconnecting two networks that use different protocols and formats is called a
	a. Bridge
	b. Gateway
	c. Router
	d. Node
8	A device interconnecting LANs together that usually have identical protocols at the physical and data link layers is called a
	a. Bridge
	b. Gateway
	c. Router
	d. Node
9	In telephony, traffic is defined in
	a. Hundred-call seconds
	b. Average number of calls in a specific period of time
	c. Erlang
	d. All the above
10	The Internet and the WWW are
	a. The same thing
	b. Completely different
	c. Related
	d. Local area networks
11	In a telephone system, the grade of service is
	a. The ratio of calls lost to calls offered
	b. The ratio of traffic lost to traffic offered
	c. The ratio of calls offered to calls lost
	d. The ratio of traffic offered to traffic lost
	e. a and b
12	The following term is not a major concept in cellular phone systems.
	a. Frequency reuse
	b. Cell reuse
	c. Cell splitting
	d. Handoff
13	In local area networks, the following topology or topologies are seldom used.
	a. Star
	b. Ring
	c. Bus
	d.a and b
14	The following numeric describing data rates for copper coax and twisted pair is rarely used
	a. 10 Base 2
	b. 10 Base 5
	c. 10 Base T
	d. 100 Base FX
	e. a and b
15	The xDSL service with the highest projected data rate is
	a. VDSL
	b. SDSL
	c. HDSL
	d. IDSL
	e. ADSL

Answers:

C

A

A

D

D

B

B

A

D

C

E

B

C

E

A