IT2 STUDY ADVANCEMENT EXAM !! QUESTIONS WITH ACCURATE ANSWERS

IT2 STUDY ADVANCEMENT EXAM !!
QUESTIONS WITH ACCURATE ANSWERS
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Which type of network are the workstations basewide as in one command connected to another
command or one base connected to another base? (Page 1-1) - Correct Answer -Metropolitan
Area Network (MAN)


During the pinging process what is the ping that is sent out called? (Page 1-6) - Correct Answer -
Echo message


Which names are reserved by DOS to reserve the first serial and parallel ports, respectively?
(Page 1-6) - Correct Answer -COM1 and LPT1


Which term refers to duplicate hardware and network facility segments that are available at all
times? (Page 1-8) - Correct Answer -Redundancy


What are the three major types of LAN configurations or topologies? (Page 1-9) - Correct
Answer -Star, Bus, and Ring


What is the wiring concentrator which allows workstations to be either inserted or bypassed on
the ring? (Page 1-10) - Correct Answer -Multi-station Access Unit (MAU)


What are the two principal network access methods? (Page 1-12) - Correct Answer -Contention
and Token passing


Which control procedure sends multiple blocks of data and returns a single acknowledgement for
many blocks, thereby increasing the amount of time spent transmitting data? (Page 1-12) -
Correct Answer -SDLC




1

,What provides a basis for coordinating the development of standards that relate to the flexible
interconnection of incompatible systems using data communications facilities? (Page 1-13) -
Correct Answer -Open Systems Interconnection (OSI) model


Which layer of the OSI model is the physical layer? (Page 1-14) - Correct Answer -1


Which layer of the OSI model is the data link layer? (Page 1-14) - Correct Answer -2


Which layer of the OSI model is the network layer? (Page 1-14) - Correct Answer -3


Which layer of the OSI model is the transport layer? (Page 1-15) - Correct Answer -4


Which layer of the OSI model is the session layer? (Page 1-15) - Correct Answer -5


Which layer of the OSI model is the presentation layer? (Page 1-15) - Correct Answer -6


Which layer of the OSI model is the application layer? (Page 1-15) - Correct Answer -7


Which layer of the OSI model addresses the electrical, mechanical, and functional interface to
the carrier? (Page 1-14) - Correct Answer -Physical


Which layer of the OSI model provides error-free transmission of information over the physical
medium? (Page 1-14) - Correct Answer -Data link


Which layer of the OSI model decides which physical pathway the data should take? (Page 1-14)
- Correct Answer -Network


Which layer of the OSI model ensures data units are delivered error-free, in sequence, with no
losses or duplications? (Page 1-15) - Correct Answer -Transport




2

,Which layer of the OSI model performs the functions that enable two applications to
communicate across the network, performing security, name recognition, logging,
administration, and other similar functions? (Page 1-15) - Correct Answer -Session


Which layer of the OSI model provides a common representation of data that can be used
between the application processes? (Page 1-15) - Correct Answer -Presentation


Which layer of the OSI model provides data encryption for privacy and authentication? (Page 1-
15) - Correct Answer -Presentation


Which layer of the OSI model represents the services that directly support users and application
tasks? (Page 1-15) - Correct Answer -Application


What are the two most common types of twisted-pair media? (Page 1-16) - Correct Answer -22
and 24 gauge


What is the transmission rate of a T1 line? (Page 1-16) - Correct Answer -1.5 Mbps


What is the transmission rate of a T2 line? (Page 1-16) - Correct Answer -6.3 Mbps


What is the transmission rate of a T3 line? (Page 1-16) - Correct Answer -46 Mbps


What is the transmission rate of a T4 line? (Page 1-16) - Correct Answer -281 Mbps


Which layer of the OSI model do routers work on? (Page 2-2) - Correct Answer -3


Which layer of the OSI model do gateways work on? (Page 2-2) - Correct Answer -7


Which device serves as a common termination point that can relay signals along the appropriate
paths? (Page 2-3) - Correct Answer -Hub



3

, Which type of transmission media is immune to interference caused by electrical or electronic
devices? (Page 2-4) - Correct Answer -Fiber


Which type of cable refers to the cable that forms the main trunk of a network? (Page 2-8) -
Correct Answer -Backbone


How many different types of backbone cable are recognized by EIA/TIA-568? (Page 2-8) -
Correct Answer -4


Which type of servers can be used as both a server and a workstation? (Page 2-10) - Correct
Answer -Non-dedicated


What is defined as the decrease in signal strength, measured in decibels (dB) per 100 feet? (Page
3-6) - Correct Answer -Attenuation


What is used to try to eliminate the effects of certain types of distortions on the signal? (Page 3-
6) - Correct Answer -Line conditioning


Which device is used to test the integrity of a section of cable before the cable is even unwound?
(Page 3-6) - Correct Answer -Time Domain Reflectometry (TDR)


What is ACP 125 for? - Correct Answer -Prescribe Voice Procedures for use by the armed forces
of Allied Nations on secure and insecure tactical voice nets


What is a Callsign? - Correct Answer -Figures, letters, or combinations of both used to identify a
COMMs station, an organization, or an individual on a radio net.


What information is it Mandatory to encode? (6 Items) - Correct Answer -Positions identifying
location of friendly forces or enemy locations (If gathered by stealth)
Start Lines
Routes
Harbors and tides

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