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Rach chap 4
Networking fundamentals
24
Computer Networking
Post-Graduate
06/11/2017

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Cards

Term

Which of the following is a common characteristic of a networking medium (choose all that apply)?

a. bandwidth rating

b. interference susceptability

c. broadband rating

d. max segment length

Definition
a, b and d
Term

Which of the following types of fiber-optic connectors provides high density and requires only one connector for two cables?

a. SC

b. ST

c. MT-RJ

d. RJ-45

Definition
c
Term

Which of the following conditions requires cables not to exceed a recommended maximum length?

a. diminution

b. capacitance

c. bandwidth

d. attenuation

Definition
d
Term

Which of the following is the process for representing bit signals on the medium?

a. encryption

b. encoding

c. decryption

d. decoding

Definition
b
Term

What happens to signals as they travel the ength of the medium?

a. they decode

b. they amplify

c. they attenuate

d. they implode

Definition
c
Term

Which of the following is UTP susceptible to (choose all that apply)?

a. EMI

b. crosstalk

c. signal enhancement

d. LEDs

Definition
a and b
Term

The space between a false ceiling and the true ceiling where heating and cooling air circulates is called the

a. duct equivalent airspace

b. conduit

c.return air

d. plenum

Definition
d
Term

What type of connector is used most commmonlu with TP network wiring?

a. RJ-11

b. RJ-45

c. BNC

d. MT-RJ

Definition
b
Term

You have been hired to install a network at a lrge govt agency that wants to reduce the likelihookd of electronic eavesdropping - what type of cable should be used?

a. UTP

b. STP

c. Coaxial

d. fiber optic

Definition
d
Term

Which of the following is a characteristic of unshielded twisted pair cable (choose all that apply)?

a. consists of four wires

b. commonly used in physical bus topologies

c. has a distance limitation of 100m

d. is susceptible to electrical interference

Definition
c and d
Term

Which of the following is a characteristic of fiber-optic cabling?

a. can be used in electrically noisy environments

b. requires only a single strand of fiber for network connections

c. carries data over longer distances than UTP

d. has low bandwidth

Definition
a and c
Term

You're preparing to install a conventional ethernet network in your new office building but your boss tells you to be ready to handle a switchover to 1Gbps ethernet next year.  What types of cable could you install?

a. cat 5

b. fiber optic

c. cat 4

d. cat 6

e. coax

Definition
b and d
Term

When two cables run side by side, signals traveling down one wire might interfere with signals travelling on the other wire - what is this called?

a. RFI

b. attenuation

c. impedance

d. cross talk

Definition
d
Term

What characteristic of twisted pair cabling helps mitigate the effects of crosstalk?

a. differential signals

b. copper conductors

c. four pairs of wires

d. 100 ohm impedance

Definition
a
Term

Which of the following is a wiring standard for twisted pair cable connections (choose all that apply)?

a. IEEE 802.3a

b. TIA/EIA 568A

c. IEEE 802.3b

d. TIA/EIA 568B

Definition
b and d
Term

Which of the following is a cimponent of a structured cabling system?

a. patch cables

b. RJ-11 plugs

c. coax cables

d. horizontal wiring

Definition
a and d
Term

Where are you most likely to find backbone cabling?

a. MDF

b. In the work area

c. Between IDFs

d. Connection a work area to an IDF

Definition
a and c
Term

Which of the following is a tool needed to make a patch cable?

a. 110 punchdown tool

b. cable stripper

c. crimping tool

d. RJ-45 jack

Definition
b and c
Term

Which type of connection is most likely to reuire a crossover cable?

a. PC to hub

b. hub to router

c. router to switch

d. pc to router

Definition
d
Term

Which UTP limitations can be solved by fiber optic cable (choose all that apply)?

a. bandwidth

b. EMI susceptability

c. installation cost

d. segment length

Definition
a, b, d
Term
How many strands of fiber optic cable are needed for a network connection
Definition
2
Term

Which statement is true about fiber optic cables?

a. MMF uses lasers and has a thicker core

b. SMF used lasers and has a thinner core

c. MMF used LEDs and has a thinner core

d SMF used LEDs and has a thicker core

Definition
b
Term

When might you want to use a rollover cable?

a. to connect a pc to another pc

b. to connect a router to a switch

c. to add a switch to a LAN

d. to configure a cisco device

Definition
d
Term

Which of the following wireless technolofies does a 802.11 wireless network using the 2.4Ghz freq range use?

a. infrared

b. narrowband radio

c. freq hopping

d. direct sequence spread spectrum

Definition
d
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