NWC203c – Full All Answers Correct
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 ️c, d
There are similarities between message switching and pa...
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 ✔️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 ✔️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 ✔️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 ✔️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 ✔️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 ✔️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 ✔️d
Which of following protocol is HTTP built upon?
, points
a. TCP
b. IP
c. SMTP
d. UDP ✔️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 ✔️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 ✔️b
Which of the following is an application layer protocol?
points
a. HTTP
b. UDP
c. DNS
, d. TCP ✔️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 ✔️d
Bluetooth is an example of
point
a. Metropolitan Area Network
b. Personal Area Network
c. Wide Area Network
d. Local Area Network ✔️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 ✔️c
The ________ is the physical path over which a message travels
point
a. Route
b. Protocol
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