,https://www.stuvia.com/
Chapter 1 ssss
ssss Introduction to ssss
Data ssss
ssss Communications
True-False
Questions
ssss
The s s s s following s s s s are s s s s possible s s s s True/False s s s s questions s s s s for s s s s tests. s s s s The
ssss statement s s s s is s s s s given s s s s and s s s s the ssssanswer s s s s is s s s s provided s s s s in s s s s square
s s s s brackets. s s s s The s s s s level s s s s of s s s s difficulty s s s s (easy, s s s s moderate, s s s s difficult) s s s s and
s s s s the s s s s page s s s s number(s) s s s s relevant s s s s to s s s s the s s s s topic s s s s are s s s s also s s s s furnished.
1. According s s s s to s s s s John s s s s Chambers, s s s s CEO s s s s of s s s s Cisco s s s s (a s s s s leading
s s s s networking s s s s technology sssscompany), s s s s the s s s s information s s s s age s s s s is
s s s s the s s s s second s s s s Industrial s s s s Revolution.
Answer:True Difficulty: ssssEasy Reference: p. s s s s 4
2. Due s s s s to s s s s recent s s s s advances s s s s in s s s s high s s s s speed s s s s communication
ssss networks, s s s s the s s s s information s s s s lag, ssssor s s s s the s s s s time s s s s it s s s s takes
s s s s for s s s s information s s s s to s s s s be s s s s disseminated s s s s around s s s s the
s s s s world, s s s s has ssssbeen s s s s significantly s s s s shortened.
Answer:True Difficulty: s s s s s s s s Easy Reference: p.4
3. One s s s s perspective s s s s of s s s s data s s s s communications s s s s and s s s s networking s s s s as
s s s s stated s s s s in s s s s the s s s s textbook, ssssexamines s s s s the s s s s management s s s s of
s s s s networking s s s s technologies, s s s s including s s s s security, s s s s network ssssdesign,
s s s s and s s s s managing s s s s the s s s s network s s s s on s s s s a s s s s day-to-day s s s s basis s s s s and
s s s s long s s s s term s s s s basis.
Answer:True Difficulty: s s s s s s s s Moderate Reference: p. s s s s 5
4. The s s s s first s s s s electronic s s s s data s s s s communication s s s s system s s s s was s s s s the
s s s s telephone s s s s developed s s s s by ssssAlexander s s s s Graham s s s s Bell.
Answer:False Difficulty: ssssEasy Reference: p. s s s s 5
5. The s s s s first s s s s transcontinental s s s s telephone s s s s service s s s s was ssss established s s s s in s s s s the
s s s s 1940s.
Answer:False Difficulty: ssssEasy Reference: p. s s s s 6
6. An s s s s Inter-Exchange s s s s Carrier s s s s (IXC) s s s s provides s s s s only sssslocal s s s s telephone
s s s s services s s s s to s s s s homes ssssand s s s s businesses.
Answer: s s s s False Difficulty: s s s s s s s s Easy Reference: p. s s s s 6
7. Common s s s s carriers s s s s include s s s s the s s s s RBOCs, s s s s IXCs, s s s s and s s s s Cable s s s s TV
s s s s companies.
Answer:True Difficulty: ssss Moderate Reference: p. s s s s 7
8. The ssssTelecommunications ssssAct s s s s of s s s s 1996 s s s s now s s s s permits s s s s the
s s s s RBOCs s s s s to s s s s provide s s s s long ssssdistance s s s s outside s s s s the s s s s region
s s s s in s s s s which s s s s they s s s s provide s s s s local s s s s telephone s s s s services.
Answer: s s s s True Difficulty: ssss Moderate Reference: p. s s s s 7
9. The s s s s Internet s s s s was s s s s started s s s s by s s s s the s s s s U.S. s s s s Department s s s s of
s s s s defense s s s s in s s s s 1969 s s s s as s s s s a s s s s network ssssof s s s s four s s s s computers
s s s s called s s s s ARPANET.
,https://www.stuvia.com/
Answer: s s s s True Difficulty: s s s s s s s s Moderate Reference: p. s s s s 9
10. Telecommunications s s s s is s s s s the s s s s transmission s s s s of s s s s voice s s s s and s s s s video
s s s s as s s s s well s s s s as s s s s data s s s s and ssssimplies s s s s transmitting s s s s a s s s s longer
s s s s distance s s s s than s s s s in s s s s a s s s s data s s s s communication s s s s network.
Answer:False Difficulty: ssss Moderate Reference: p. s s s s 11
,https://www.stuvia.com/
11. A sssslocal s s s s area s s s s network s s s s (LAN) s s s s connects s s s s other s s s s LANs s s s s and s s s s BNs
s s s s located s s s s in s s s s different s s s s areas ssssto s s s s each s s s s other s s s s and s s s s to s s s s wide
s s s s area s s s s networks s s s s in s s s s a s s s s span s s s s from s s s s 3 s s s s to s s s s 30 s s s s miles.
Answer: s s s s False Difficulty: ssss Moderate Reference: p. s s s s 13
12. An s s s s intranet s s s s is s s s s a s s s s LAN s s s s that s s s s uses s s s s Internet s s s s technologies
s s s s and s s s s is s s s s publicly s s s s available s s s s to sssspeople s s s s outside s s s s of s s s s the
s s s s organization.
Answer: s s s s False Difficulty: ssss Moderate Reference: p. s s s s 15
13. A sssscar s s s s manufacturer s s s s may s s s s give s s s s access s s s s to s s s s certain s s s s portions s s s s of
s s s s its s s s s network s s s s to s s s s some s s s s of s s s s its sssssuppliers s s s s via s s s s Internet. s s s s This
s s s s is s s s s an s s s s example s s s s of s s s s an s s s s Extranet.
Answer: s s s s True Difficulty: ssss Moderate Reference: p. s s s s 15
14. The s s s s OSI s s s s model s s s s is s s s s the s s s s most s s s s widely s s s s used s s s s network s s s s model
s s s s to s s s s develop s s s s and s s s s build s s s s networks sssstoday.
Answer: s s s s True Difficulty: ssss Moderate Reference: p. s s s s 16
15. The s s s s network s s s s layer s s s s is s s s s responsible s s s s for s s s s routing s s s s messages
s s s s from s s s s the s s s s source s s s s computer ssssto s s s s the s s s s destination s s s s computer.
Answer: s s s s True Difficulty: ssssEasy Reference: p. s s s s 17
16. In s s s s the s s s s OSI s s s s model, s s s s the s s s s application s s s s layer s s s s is the s s s s end s s s s user‟s
s ss s
s s s s access s s s s to s s s s the s s s s network.
Answer: s s s s True Difficulty: ssss Moderate Reference: p. s s s s 18
17. The s s s s application s s s s layer s s s s is s s s s the s s s s seventh s s s s layer s s s s of s s s s the
s s s s Internet s s s s model s s s s and s s s s provides s s s s the ssssend s s s s user‟s s s s s access s s s s to
s s s s the s s s s network.
Answer: s s s s True Difficulty: ssss Moderate Reference: p. s s s s 18
18. At s s s s the s s s s transport s s s s layer s s s s in s s s s the s s s s Internet s s s s model, s s s s TCP s s s s is
s s s s responsible s s s s for s s s s breaking s s s s large ssssfiles s s s s received s s s s from s s s s the
s s s s application s s s s layer s s s s into s s s s smaller s s s s packets s s s s and s s s s opening s s s s a
ssssconnection s s s s to s s s s a s s s s server s s s s for s s s s transferring s s s s the s s s s packets.
Answer: s s s s True Difficulty: s s s s Difficult Reference: p. s s s s 17
19. Ethernet s s s s is s s s s an s s s s example s s s s of s s s s a s s s s network s s s s layer s s s s protocol.
Answer: s s s s False Difficulty: ssssEasy Reference: p. s s s s 17
20. Data s s s s communication s s s s standards s s s s enable s s s s each s s s s layer s s s s in s s s s the
s s s s sending s s s s computer s s s s to sssscommunicate s s s s with s s s s its
s s s s corresponding s s s s layer s s s s in s s s s the s s s s receiving s s s s computer.
Answer: s s s s True Difficulty: s s s s Easy Reference: p. s s s s 22
21. The s s s s specification s s s s stage s s s s of s s s s the s s s s formal s s s s standardization
s s s s process s s s s consists s s s s of ssssdeveloping s s s s nomenclature s s s s and
s s s s identifying s s s s the s s s s problems s s s s to s s s s be s s s s addressed.
Answer: s s s s True Difficulty: s s s s Moderate Reference: p. s s s s 23
22. ANSI s s s s is s s s s a s s s s voting s s s s participant s s s s in s s s s the s s ss ISO.
Answer: s s s s True Difficulty: s s s s Easy Reference: p. s s s s 23
23. Passive s s s s optical ssss networking, s s s s a s s s s key s s s s trend ssss for s s s s the s s s s future,
Chapter 1 ssss
ssss Introduction to ssss
Data ssss
ssss Communications
True-False
Questions
ssss
The s s s s following s s s s are s s s s possible s s s s True/False s s s s questions s s s s for s s s s tests. s s s s The
ssss statement s s s s is s s s s given s s s s and s s s s the ssssanswer s s s s is s s s s provided s s s s in s s s s square
s s s s brackets. s s s s The s s s s level s s s s of s s s s difficulty s s s s (easy, s s s s moderate, s s s s difficult) s s s s and
s s s s the s s s s page s s s s number(s) s s s s relevant s s s s to s s s s the s s s s topic s s s s are s s s s also s s s s furnished.
1. According s s s s to s s s s John s s s s Chambers, s s s s CEO s s s s of s s s s Cisco s s s s (a s s s s leading
s s s s networking s s s s technology sssscompany), s s s s the s s s s information s s s s age s s s s is
s s s s the s s s s second s s s s Industrial s s s s Revolution.
Answer:True Difficulty: ssssEasy Reference: p. s s s s 4
2. Due s s s s to s s s s recent s s s s advances s s s s in s s s s high s s s s speed s s s s communication
ssss networks, s s s s the s s s s information s s s s lag, ssssor s s s s the s s s s time s s s s it s s s s takes
s s s s for s s s s information s s s s to s s s s be s s s s disseminated s s s s around s s s s the
s s s s world, s s s s has ssssbeen s s s s significantly s s s s shortened.
Answer:True Difficulty: s s s s s s s s Easy Reference: p.4
3. One s s s s perspective s s s s of s s s s data s s s s communications s s s s and s s s s networking s s s s as
s s s s stated s s s s in s s s s the s s s s textbook, ssssexamines s s s s the s s s s management s s s s of
s s s s networking s s s s technologies, s s s s including s s s s security, s s s s network ssssdesign,
s s s s and s s s s managing s s s s the s s s s network s s s s on s s s s a s s s s day-to-day s s s s basis s s s s and
s s s s long s s s s term s s s s basis.
Answer:True Difficulty: s s s s s s s s Moderate Reference: p. s s s s 5
4. The s s s s first s s s s electronic s s s s data s s s s communication s s s s system s s s s was s s s s the
s s s s telephone s s s s developed s s s s by ssssAlexander s s s s Graham s s s s Bell.
Answer:False Difficulty: ssssEasy Reference: p. s s s s 5
5. The s s s s first s s s s transcontinental s s s s telephone s s s s service s s s s was ssss established s s s s in s s s s the
s s s s 1940s.
Answer:False Difficulty: ssssEasy Reference: p. s s s s 6
6. An s s s s Inter-Exchange s s s s Carrier s s s s (IXC) s s s s provides s s s s only sssslocal s s s s telephone
s s s s services s s s s to s s s s homes ssssand s s s s businesses.
Answer: s s s s False Difficulty: s s s s s s s s Easy Reference: p. s s s s 6
7. Common s s s s carriers s s s s include s s s s the s s s s RBOCs, s s s s IXCs, s s s s and s s s s Cable s s s s TV
s s s s companies.
Answer:True Difficulty: ssss Moderate Reference: p. s s s s 7
8. The ssssTelecommunications ssssAct s s s s of s s s s 1996 s s s s now s s s s permits s s s s the
s s s s RBOCs s s s s to s s s s provide s s s s long ssssdistance s s s s outside s s s s the s s s s region
s s s s in s s s s which s s s s they s s s s provide s s s s local s s s s telephone s s s s services.
Answer: s s s s True Difficulty: ssss Moderate Reference: p. s s s s 7
9. The s s s s Internet s s s s was s s s s started s s s s by s s s s the s s s s U.S. s s s s Department s s s s of
s s s s defense s s s s in s s s s 1969 s s s s as s s s s a s s s s network ssssof s s s s four s s s s computers
s s s s called s s s s ARPANET.
,https://www.stuvia.com/
Answer: s s s s True Difficulty: s s s s s s s s Moderate Reference: p. s s s s 9
10. Telecommunications s s s s is s s s s the s s s s transmission s s s s of s s s s voice s s s s and s s s s video
s s s s as s s s s well s s s s as s s s s data s s s s and ssssimplies s s s s transmitting s s s s a s s s s longer
s s s s distance s s s s than s s s s in s s s s a s s s s data s s s s communication s s s s network.
Answer:False Difficulty: ssss Moderate Reference: p. s s s s 11
,https://www.stuvia.com/
11. A sssslocal s s s s area s s s s network s s s s (LAN) s s s s connects s s s s other s s s s LANs s s s s and s s s s BNs
s s s s located s s s s in s s s s different s s s s areas ssssto s s s s each s s s s other s s s s and s s s s to s s s s wide
s s s s area s s s s networks s s s s in s s s s a s s s s span s s s s from s s s s 3 s s s s to s s s s 30 s s s s miles.
Answer: s s s s False Difficulty: ssss Moderate Reference: p. s s s s 13
12. An s s s s intranet s s s s is s s s s a s s s s LAN s s s s that s s s s uses s s s s Internet s s s s technologies
s s s s and s s s s is s s s s publicly s s s s available s s s s to sssspeople s s s s outside s s s s of s s s s the
s s s s organization.
Answer: s s s s False Difficulty: ssss Moderate Reference: p. s s s s 15
13. A sssscar s s s s manufacturer s s s s may s s s s give s s s s access s s s s to s s s s certain s s s s portions s s s s of
s s s s its s s s s network s s s s to s s s s some s s s s of s s s s its sssssuppliers s s s s via s s s s Internet. s s s s This
s s s s is s s s s an s s s s example s s s s of s s s s an s s s s Extranet.
Answer: s s s s True Difficulty: ssss Moderate Reference: p. s s s s 15
14. The s s s s OSI s s s s model s s s s is s s s s the s s s s most s s s s widely s s s s used s s s s network s s s s model
s s s s to s s s s develop s s s s and s s s s build s s s s networks sssstoday.
Answer: s s s s True Difficulty: ssss Moderate Reference: p. s s s s 16
15. The s s s s network s s s s layer s s s s is s s s s responsible s s s s for s s s s routing s s s s messages
s s s s from s s s s the s s s s source s s s s computer ssssto s s s s the s s s s destination s s s s computer.
Answer: s s s s True Difficulty: ssssEasy Reference: p. s s s s 17
16. In s s s s the s s s s OSI s s s s model, s s s s the s s s s application s s s s layer s s s s is the s s s s end s s s s user‟s
s ss s
s s s s access s s s s to s s s s the s s s s network.
Answer: s s s s True Difficulty: ssss Moderate Reference: p. s s s s 18
17. The s s s s application s s s s layer s s s s is s s s s the s s s s seventh s s s s layer s s s s of s s s s the
s s s s Internet s s s s model s s s s and s s s s provides s s s s the ssssend s s s s user‟s s s s s access s s s s to
s s s s the s s s s network.
Answer: s s s s True Difficulty: ssss Moderate Reference: p. s s s s 18
18. At s s s s the s s s s transport s s s s layer s s s s in s s s s the s s s s Internet s s s s model, s s s s TCP s s s s is
s s s s responsible s s s s for s s s s breaking s s s s large ssssfiles s s s s received s s s s from s s s s the
s s s s application s s s s layer s s s s into s s s s smaller s s s s packets s s s s and s s s s opening s s s s a
ssssconnection s s s s to s s s s a s s s s server s s s s for s s s s transferring s s s s the s s s s packets.
Answer: s s s s True Difficulty: s s s s Difficult Reference: p. s s s s 17
19. Ethernet s s s s is s s s s an s s s s example s s s s of s s s s a s s s s network s s s s layer s s s s protocol.
Answer: s s s s False Difficulty: ssssEasy Reference: p. s s s s 17
20. Data s s s s communication s s s s standards s s s s enable s s s s each s s s s layer s s s s in s s s s the
s s s s sending s s s s computer s s s s to sssscommunicate s s s s with s s s s its
s s s s corresponding s s s s layer s s s s in s s s s the s s s s receiving s s s s computer.
Answer: s s s s True Difficulty: s s s s Easy Reference: p. s s s s 22
21. The s s s s specification s s s s stage s s s s of s s s s the s s s s formal s s s s standardization
s s s s process s s s s consists s s s s of ssssdeveloping s s s s nomenclature s s s s and
s s s s identifying s s s s the s s s s problems s s s s to s s s s be s s s s addressed.
Answer: s s s s True Difficulty: s s s s Moderate Reference: p. s s s s 23
22. ANSI s s s s is s s s s a s s s s voting s s s s participant s s s s in s s s s the s s ss ISO.
Answer: s s s s True Difficulty: s s s s Easy Reference: p. s s s s 23
23. Passive s s s s optical ssss networking, s s s s a s s s s key s s s s trend ssss for s s s s the s s s s future,
