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NWC203c – Full UPDATED Actual Exam Questions and CORRECT Answers
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NWC203c – Full UPDATED Actual Exam Questions and CORRECT Answers Which of the following networks use store-and-forward switching operation? (2 answers) 2 / 2 points a.Telephone networks b. Wireless Networks c. Computer networks d. Telegraph networks - CORRECT ANSWER- c, d

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  • September 25, 2024
  • 74
  • 2024/2025
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NWC203c – Full UPDATED Actual Exam
Questions and CORRECT Answers
Which of the following networks use store-and-forward switching operation? (2 answers)


points
a.Telephone networks
b. Wireless Networks
c. Computer networks

d. Telegraph networks - CORRECT ANSWER✔✔- c, d


There are similarities between message switching and packet switching. Which of following
that applies to packet switching but not to message switching?


points
a. Variable length of information block
b. Supporting multiple applications
c. Store-and-forward

d. All of the above - CORRECT ANSWER✔✔- b


Which of the following networks can be connection-oriented? (2 answers)
points
a. Telegraph networks
b. Computer networks
c. Telephone networks

d. All of the above - CORRECT ANSWER✔✔- b, c


A protocol is a set of precise and unambiguous rules that governs


points

,a. How two or more communicating entities in a layer are to interact
b. Messages that can be sent and received
c. Actions that are to be taken when a certain event occurs

d. All of the above - CORRECT ANSWER✔✔- d


DNS is a domain-name-service that responds to queries of domain name to IP address or IP
address to domain name. DNS uses services provided by
points
a. TCP
b.UDP
c. TTP

d. None of the above - CORRECT ANSWER✔✔- b


A network used to join the individual networks at different sites into one extended network is
called
point
a. LAN
b. PAN
c. SAN

d. VPN - CORRECT ANSWER✔✔- d


Upon receipt of a bad segment, UDP?
point
a. Retransmission
b. It does error control
c. It does flow control

d. It does not do flow and error control - CORRECT ANSWER✔✔- d


Which of following protocol is HTTP built upon?


points

,a. TCP
b. IP
c. SMTP

d. UDP - CORRECT ANSWER✔✔- a


Which of following requirements are necessary for packet networks to support multiple and
diverse applications?




points
a. Transfer arbitrary message size
b. Low delay for interactive applications
c. Packets have maximum length

d. All of the above - CORRECT ANSWER✔✔- d


What was the concern of the telephone system that motivated the ARPANET design?
points
a. Scalability
b. Vulnerability
c. Efficiency

d. None of the above - CORRECT ANSWER✔✔- b


Which of the following is an application layer protocol?
points
a. HTTP
b. UDP
c. DNS

d. TCP - CORRECT ANSWER✔✔- a


Which of the following are features of ARPANET design?

, points
a. Connectionless packet transmission
b. Routing tables at the packet switches
c. Destinations identified by unique addresses

d. All of the above - CORRECT ANSWER✔✔- d


Bluetooth is an example of
point
a. Metropolitan Area Network
b. Personal Area Network
c. Wide Area Network

d. Local Area Network - CORRECT ANSWER✔✔- b


In the layer hierarchy as the data packet moves from the upper to the lower layers, headers
are


point
a. Removed
b. Modified
c. Added

d. Rearranged - CORRECT ANSWER✔✔- c


The ________ is the physical path over which a message travels
point
a. Route
b. Protocol
c. Path

d. Medium - CORRECT ANSWER✔✔- d


Three or more devices share a link in ________ connection

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