Exam (elaborations)
NCTI V
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Exam of 20 pages for the course NCTI V at NCTI V (NCTI V)
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NCTI VMultiple analog channels Correct Ans - Which of the following is most
typical of a broadband network?
Processor
Memory
Storage
I/O Correct Ans - What components are common to all computer
systems? (Check all that apply.)
Input / Output Correct Ans - What does I/O stand for?
Signaling Correct Ans - A NIC is a device used for:
Input / Output Correct Ans - A sound card is what general type of
computer component?
Keyboard input
Screen display
File I/O
Peripheral control
(All of the Above) Correct Ans - Which of the following is managed by
the OS?
True Correct Ans - The primary purpose of a device driver is to control
hardware under the supervision of the OS. True or False?
Ring Correct Ans - Which of the following network topologies forms a
closed loop?
Bus Correct Ans - Which of the following network topologies connects
devices to a shared straight-line cable?
When there is little electrical interference Correct Ans - M1L5 When is
UTP cable preferred over STP?
,BNC Correct Ans - Which connector type is used with Thinnet coaxial
cable?
Thinnet Correct Ans - Which of the following cable types uses a T-
connector to connect each NIC to the cable?
Fiber Correct Ans - Which of the following cable types can transmit
data farthest?
Pulses (on/off) of light Correct Ans - How are bits represented on fiber
optic cable?
Laser diode and LED Correct Ans - Which of the following are the two
primary types of light sources in fiber optic cables?
Ease of Management Correct Ans - What is the main advantage of star
topology?
Thinnet Correct Ans - Which of the following would not be used in a
typical star topology?
25 or 50 Correct Ans - How many wire pairs can be terminated on a 66
block?
A crossover cable uses the 568A pattern on one jack, and the 568B pattern on
the other. A patch cord uses the same pinout pattern on both jacks.
Correct Ans - What makes a crossover cable different from a patch cord?
Bad cable connections degrade a network's performance. Correct Ans -
What is the key reason that smart LAN administrators demand well-made
cable connections?
The cable can be longer because balanced signaling is less vulnerable to
interference. Correct Ans - What is the main advantage of using
balanced signaling on a serial cable?
Frequency Correct Ans - What term describes the number of wave
crests that pass a fixed point during a particular period of time?
, Half-duplex Correct Ans - In data networking, this term is defined as
"Signals may flow in either direction, but not simultaneously".
The one with a higher clock speed Correct Ans - Two CPUs have the
same size data bus. Which one will process data faster?
Media access control address (MAC) Correct Ans - This unique ID
number is coordinated by the Institute of Electrical and Electronics Engineers
and is used by only one network interface card anywhere in the world.
Backup and recovery utilities Correct Ans - Which is a network
management and utility software that is typically used by network
administrators and information systems personnel when the network is
unused or lightly used, often in the middle of the night?
10Base5 cable Correct Ans - Which of the following is also called
"Thicknet" or "yellow wire" and includes two layers of foil shielding as well as
an additional copper mesh shield?
100m Correct Ans - According to 10BaseT wiring rules, what is the
maximum segment length without a repeater?
The boundary between the core and the cladding Correct Ans - When
light travels through a fiber-optic cable, the change in refractive index causes
the light to refract off which of the following?
Single-mode fiber Correct Ans - Which of the following requires a laser
transmitter?
wiring closet Correct Ans - In what part of a building would you
typically find punch-down blocks?
The top three Correct Ans - Which OSI model layers are concerned
primarily with applications?
The lower four Correct Ans - Which layers are primarily concerned
with moving raw data?
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