NCTI Final Exam Progression Field Tech IV - V
Conventional Latest Version 2023 2024
Questions and Verified Correct Answers
_____ is a simple file transfer protocol used to transport data packets over UDP. -
Correct AnswerTrivial File Transfer Protocol (TFTP)
________ allows network administrators to break up a single network address into
smaller network addresses, creating router-connected network segments, all with their
own unique network address space. - Correct AnswerSubnetting
________ is an application that manages Internet resources and transmits them in
response to requests from Web browsers. - Correct AnswerHTTP server
21. Which tagging method supports thousands of VLANs? - Correct Answer802.1Q
A Class 5 office connects individual subscribers to the telephone network and is also
referred to as: - Correct AnswerEnd Office
Central Office
Local Office
A dedicated CO circuit that links two points is referred to as a: - Correct AnswerTie Line
A frame relay network uses fewer lines to connect 10 locations than a T1 mesh, and is
therefore more cost effective. True or False? - Correct AnswerTrue
A line that goes from a customer's site through a CO to a remote CO in another part of
the country is known as a: - Correct AnswerFX line
A NIC is a device used for: - Correct AnswerSignaling
A Ping command uses which ICMP message types? (Choose three.) - Correct
AnswerEcho Reply
Source quench
Echo Request
A sound card is what general type of computer component? - Correct
AnswerInput/output
According to 10BaseT wiring rules, what is the maximum segment length without a
repeater? - Correct Answer100m
According to the North American Numbering Plan (NANP), what does the "803" in 803-
550-0000 represent? - Correct AnswerNumber Plan Area
, Admission control protocols, authentication mechanisms, and _______ are three ways
communication networks provide admission control. - Correct AnswerAccess Control
Lists (ACLs)
After entering "arp" into the MS-DOS command line, which of the following switches
would display the ARP cache? - Correct Answer-a or -g
An Application Layer process needs to transmit data with as little overhead as possible.
The application protocol provides error detection and recovery if the data is lost. What
Transport Layer protocol should this process use? - Correct AnswerUser Datagram
Protocol
An Application Layer utility transmits network administration and control messages
between nodes. It must not use any more of the network's bandwidth than absolutely
necessary. If messages are corrupted or lost, the utility handles retransmission, so it
doesn't need this service from the lower layers. This application should use the services
of: - Correct AnswerUDP
An Ethernet LAN that uses UTP cabling and a hub as the physical medium is referred
to as which of the following? - Correct AnswerStar
An MG consists of which two components? (Choose two.) - Correct
AnswerConnections
Endpoints
Analog signals on copper cable can be distorted by: - Correct AnswerMagnetic fields
Alternating current fields
Radio waves
At what OSI model layer does DiffServ operate? - Correct AnswerLayer 3
At what point does end-to-end delay in a voice conversation become unacceptable? -
Correct AnswerWhen it approaches 500 ms
At which OSI layer do bridges operate? - Correct AnswerData Link Layer
At which OSI layer do routers operate? - Correct AnswerNetwork Layer
At which OSI layer do switches reside? - Correct AnswerData Link Layer
At which points in a one-way, multiple hop, end-to-end IP communications session will
a frame have to be built? (Choose two.) - Correct AnswerAt the sending host's LAN port
At each hop's router outbound port
ATM requires fiber media to run. True or False? - Correct AnswerFalse
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