ITN 100 EXAM 1 NORTHERN VIRGINIA COMMUNITY COLLEGE (NVCC) QUESTIONS & … EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
ITN 100 Exam 1 Northern
Virginia Community College
(NVCC) Questions & Answers
2026-2027 (Rationales)
Verified Answers Exam Ready With Rationales
48 QUESTIONS
DOCUMENT OVERVIEW
This document provides 48 ITN 100 exam questions with their correct answers and detailed rationales.
Covering fundamental networking concepts, it is an ideal resource for students to review course material,
reinforce understanding of key principles, and prepare for examinations.
CONTENTS
01 Networking Fundamentals & Standards Q1–Q12
02 Client-Server & Architectures Q13–Q30
03 Error Control & Data Link Q31–Q39
04 Data Transmission & Signals Q40–Q48
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 48
Which of the following is not true about de facto standards?
A. They never evolve into de jure standards.
B. They are those standards that emerge in the marketplace.
C. They tend not to be developed by an official industry or government body.
D. They are generally supported by more than one vendor but de facto standards have no official standing.
E. They tend to emerge based upon the needs/response of the marketplace.
CORRECT ANSWER
A. They never evolve into de jure standards.
RATIONALE
De facto standards can indeed evolve into de jure standards; for instance, a widely adopted market standard might be
formalized by a standards organization. The key concept tested is the dynamic relationship and potential formalization
pathway between market-driven and officially sanctioned standards.
Q2 QUESTION 2 OF 48
A(n) ___________ is similar to an intranet in that it uses Internet technologies, but is developed for users outside the
organization.
A. intranet
B. Usenet
C. Wide Area Network
D. Extranet
CORRECT ANSWER
D. Extranet
RATIONALE
An extranet extends an organization's intranet to allow external users controlled access to specific resources, leveraging
internet technologies for secure communication beyond the company's internal network. The key concept tested is the
distinction between internal (intranet) and externally accessible (extranet) networks that utilize similar internet protocols.
Q3 QUESTION 3 OF 48
Page 2
, Which of the following is not an important future trend in communication and networking?
A. development of online batch systems
B. integration of voice, video, and data
C. pervasive networking
D. provision of new information services on rapidly expanding networks
E. development of extremely high speed broadband networks
CORRECT ANSWER
A. development of online batch systems
RATIONALE
Online batch systems represent a legacy computing paradigm, contrasting with the real-time, integrated, and pervasive
networking trends like broadband, multimedia traffic, and new information services that define modern communication
evolution. The key underlying concept tested is the differentiation between historical and contemporary advancements in
networking technology.
Q4 QUESTION 4 OF 48
Which of the following is not a property of a WAN:
A. connects backbone networks and MANS.
B. spans hundreds or thousands of miles
C. provides data transmission speeds from 56Kbps to 10Gbps.
D. connects a group of computers in a small geographic area such as room, floor, building or campus.
E. uses leased lines from IXCs like ATT, MCI, and Sprint.
CORRECT ANSWER
D. connects a group of computers in a small geographic area such as room, floor, building or campus.
RATIONALE
A Wide Area Network (WAN) connects disparate geographic locations, whereas the described characteristic pertains to a
Local Area Network (LAN). This distinction is based on the geographic scope of network connectivity.
Q5 QUESTION 5 OF 48
A local area network (LAN) connects other LANs and BNs located in different areas to each other and to wide area
networks in a span from 3 to 30 miles.
(T/F)
CORRECT ANSWER
False
Page 3
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
ITN 100 Exam 1 Northern
Virginia Community College
(NVCC) Questions & Answers
2026-2027 (Rationales)
Verified Answers Exam Ready With Rationales
48 QUESTIONS
DOCUMENT OVERVIEW
This document provides 48 ITN 100 exam questions with their correct answers and detailed rationales.
Covering fundamental networking concepts, it is an ideal resource for students to review course material,
reinforce understanding of key principles, and prepare for examinations.
CONTENTS
01 Networking Fundamentals & Standards Q1–Q12
02 Client-Server & Architectures Q13–Q30
03 Error Control & Data Link Q31–Q39
04 Data Transmission & Signals Q40–Q48
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 48
Which of the following is not true about de facto standards?
A. They never evolve into de jure standards.
B. They are those standards that emerge in the marketplace.
C. They tend not to be developed by an official industry or government body.
D. They are generally supported by more than one vendor but de facto standards have no official standing.
E. They tend to emerge based upon the needs/response of the marketplace.
CORRECT ANSWER
A. They never evolve into de jure standards.
RATIONALE
De facto standards can indeed evolve into de jure standards; for instance, a widely adopted market standard might be
formalized by a standards organization. The key concept tested is the dynamic relationship and potential formalization
pathway between market-driven and officially sanctioned standards.
Q2 QUESTION 2 OF 48
A(n) ___________ is similar to an intranet in that it uses Internet technologies, but is developed for users outside the
organization.
A. intranet
B. Usenet
C. Wide Area Network
D. Extranet
CORRECT ANSWER
D. Extranet
RATIONALE
An extranet extends an organization's intranet to allow external users controlled access to specific resources, leveraging
internet technologies for secure communication beyond the company's internal network. The key concept tested is the
distinction between internal (intranet) and externally accessible (extranet) networks that utilize similar internet protocols.
Q3 QUESTION 3 OF 48
Page 2
, Which of the following is not an important future trend in communication and networking?
A. development of online batch systems
B. integration of voice, video, and data
C. pervasive networking
D. provision of new information services on rapidly expanding networks
E. development of extremely high speed broadband networks
CORRECT ANSWER
A. development of online batch systems
RATIONALE
Online batch systems represent a legacy computing paradigm, contrasting with the real-time, integrated, and pervasive
networking trends like broadband, multimedia traffic, and new information services that define modern communication
evolution. The key underlying concept tested is the differentiation between historical and contemporary advancements in
networking technology.
Q4 QUESTION 4 OF 48
Which of the following is not a property of a WAN:
A. connects backbone networks and MANS.
B. spans hundreds or thousands of miles
C. provides data transmission speeds from 56Kbps to 10Gbps.
D. connects a group of computers in a small geographic area such as room, floor, building or campus.
E. uses leased lines from IXCs like ATT, MCI, and Sprint.
CORRECT ANSWER
D. connects a group of computers in a small geographic area such as room, floor, building or campus.
RATIONALE
A Wide Area Network (WAN) connects disparate geographic locations, whereas the described characteristic pertains to a
Local Area Network (LAN). This distinction is based on the geographic scope of network connectivity.
Q5 QUESTION 5 OF 48
A local area network (LAN) connects other LANs and BNs located in different areas to each other and to wide area
networks in a span from 3 to 30 miles.
(T/F)
CORRECT ANSWER
False
Page 3
