Network + Chapt 5 Quiz

Question 1

What type of signals vary infinitely and appear as a wavy line when graphed over time?

a. Voltage

b. Analog	
c. Electromagnetic	
d. Data

Answer 1

b. Analog

Question 2

Which of the following is NOT a property of analog signals?

a. Amplitude

b. Pulse of 0 or 1	
c. Frequency in Hz	
d. Phase

Answer 2

b. Pulse of 0 or 1

Question 3

What type of transmission technology carries multiple signals on a single media and is used for cable Internet service?

a. Broadband

b. Modulation	
c. Digital	
d. Baseband

Answer 3

a. Broadband

Question 4

Which type of signal multiplexing is used with fiber–optic cable and divides a beam of light into 40 different wavelengths?

a. SDM

b. TDM	
c. WDM	
d. FDM

Answer 4

c. WDM

Question 5

What property of twisted–pair cabling provides resistance to cross–talk?

a. Twists

b. Color–coding	
c. Four pairs	
d. Copper

Answer 5

a. Twists

Question 6

What type of connector is used with UTP cabling for Ethernet applications?

a. RJ–11

b. BNC	
c. MT–RJ	
d. RJ–45

Answer 6

d. RJ–45

Question 7

Which Ethernet standard requires at least Cat 6 cabling and uses 2 wire pairs?

a. 10Base–5

b. 1000Base–TX	
c. 10GBase–T	
d. 100Base–T

Answer 7

b. 1000Base–TX

Question 8

What type of cable do you need to connect two switches together when neither switch has an autosense function?

a. Fiber–optic

b. Rollover	
c. Crossover	
d. Straight–through

Answer 8

c. Crossover

Question 9

Which standard should your switch support if it will connect to an access point that is not near a wall outlet to supply it power?

a. IEEE 802.3af

b. TIA/EIA 568A	
c. TIA/EIA 568B	
d. IEEE 802.11ac

Answer 9

a. IEEE 802.3af

Question 10

What is the shorthand notation to specify that a device can deliver a maximum bandwidth of 5,000,000 bits per second?

a. 5 Mbps

b. 5 Gbps	
c. 5 Tbps	
d. 5 Kbps

Answer 10

a. 5 Mbps

Question 11

On a fiber–optic cable, what surrounds the light–carrying fibers that reflects light back into the middle of the fiber?

a. Core

b. Cladding	
c. Sheath	
d. Buffer

Answer 11

b. Cladding

Question 12

Which of the following is a benefit of fiber–optic cable over copper cabling?

a. Uses lasers

b. Easy installation	
c. Lower cost	
d. Noise immunity

Answer 12

d. Noise immunity

Question 13

Which of the following is NOT a type of fiber–optic cable connector?

a. SC

b. MT–RJ	
c. ST	
d. DB

Answer 13

d. DB

Question 14

You have a 10 micron core fiber–optic cable that must connect with a 50 micron core fiber–optic cable. What do you need?

a. Gigabit interface converter

b. SMF to MMF converter	
c. Fiber to coax converter	
d. Small form–factor converter

Answer 14

b. SMF to MMF converter

Question 15

A fiber–optic network requires an Ethernet connection that will operate at 10 Gbps and will span almost 25 miles. Which Ethernet standard and type of cable should you use?

a. 10GBase–LR, SMF

b. 10GBase–SR, MMF	
c. 10GBase–SW, SMF	
d. 10GBase–ER, SMF

Answer 15

d. 10GBase–ER, SMF

Question 16

What type of noise occurs when a signal traveling on one wire infringes on the signal traveling on an adjacent wire?

a. RFI

b. Attenuation	
c. Cross–talk	
d. Split pair

Answer 16

c. Cross–talk

Question 17

What type of device can be used to mitigate the effects of attenuation?

a. Amplifier

b. Resistor	
c. Probe	
d. Tone generator

Answer 17

a. Amplifier

Question 18

Which of the following is a common fiber cable problem?

a. Electromagnetic interference

b. Cross–talk	
c. Split pair	
d. Wavelength mismatch

Answer 18

d. Wavelength mismatch

Question 19

What tool is best used to verify the location of a wire’s termination?

a. Time domain reflectometer

b. Multimeter	
c. Tone generator	
d. Continuity tester

Answer 19

c. Tone generator

Question 20

What device should you use to measure the amount of light that is transmitted on a fiber–optic line?

a. OTDR

b. TDR	
c. Probe	
d. OPM

Answer 20

d. OPM