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NCTI TECH 4 TO 5 CH. TEST STUDY GUIDE Questions With Correct Answers 2023
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NCTI TECH 4 TO 5 CH. TEST STUDY GUIDE Questions With Correct Answers 2023
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NCTI TECH 4 TO 5 CH. TEST STUDYGUIDE Questions With Correct Answers
2023
What term describes the number of wave crests that pass a fixed point during a
particular period of time? - AnswerFrequency
In data networking, this term is defined as "Signals may flow in either direction, but not
simultaneously". - AnswerHalf Duplex
Two CPUs have the same size data bus. Which one will process data faster? -
AnswerThe one with a higher clock speed
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. -
AnswerMedia access control address (MAC)
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? - AnswerBack up and recovery Utilities
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? - Answer10Base5 cable
According to 10BaseT wiring rules, what is the maximum segment length without a
repeater? - Answer100m
When light travels through a fiber-optic cable, the change in refractive index causes the
light to refract off which of the following? - AnswerThe boundary between the core and
the cladding
Which of the following requires a laser transmitter? - AnswerSingle-mode fiber
In what part of a building would you typically find punch-down blocks? - AnswerWiring
closet
Encapsulation and protocol headers, decapsulation, and reassembly are three of the
four basic techniques used whenever different layers of protocols work together. What
is the fourth? - AnswerSegmentation
Which type of address is unique anywhere in the world? - AnswerNIC address
, Which layer of the OSI protocol stack handles frames? - AnswerData Link
Which of the following best represents a logical address? - AnswerIPv6
In data networking, ________ describes the characteristics of a transmission link, such
as throughput, setup time, or accuracy. - AnswerQuality of service (QoS)
Transport layer processes work with transmission channels using multiplexing and
___________ techniques. - AnswerParallelization
Which of the following protocols is commonly used in the Session Layer? -
AnswerAdvanced Program-to-Program Communications (APPC)
What is the binary equivalent to the decimal number "14"? - Answer0000 1110
Data security, data compression, and ________ are the three main services that the
Presentation Layer provides. - AnswerData representation
Which of the following is an example of a Transport Layer protocol? -
AnswerTransmission Control Protocol (TCP)
Carrier sense multiple access with collision detection (CSMA/CD) is most like which of
the following? - AnswerAn informal conversation in which each person speaks when the
opportunity presents itself, but only one person speaks at any time
The IEEE 802.3 standard defines which of the following? - AnswerEthernet
What Fast Ethernet standard can send Ethernet frames at 100 Mbps over Category 5E
UTP or fiber optic cabling? - AnswerIEEE 802.3u
What enables the transport of computer data over analog telephone local loops? -
AnswerTelephone modems.
Which of the following describes the bandwidth of a single FT1? - Answer64 Kbps
How much bandwidth in a T1 circuit is allocated for control information? - Answer8
Kbps.
What device is required to attach a non-ISDN device to an ISDN network? -
AnswerTerminal adaptor (TA)
Which of the following is a connection-oriented packet-switched network service that
works at the Data Link Layer? - AnswerX.25*
ATM*
SMDS*
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