Nwc203c | Complete Questions And Answers
Which of the following networks use store-and-forward switching operation?
A, Computer networks
B, Telegraph networks
C, Telephone networks
D, Wireless Networks ANS AB
There are similarities between message switching and packet switching. Which of following that
applies to packet switching but not to message switching?
A, Variable length of information block
B, Supporting multiple applications
C, Store-and-forward
D, All of the above ANS B
Which of the following networks can be connection-oriented?
A, Telegraph networks
B, Computer networks
C, Telephone networks
D, All of the above ANS BC
A protocol is a set of precise and unambiguous rules that governs
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 ANS 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
A, TCP
B, UDP
C, HTTP
D, None of the above ANS B
A network used to join the individual networks at different sites into one extended network is called
A, PAN
B, LAN
C, SAN
D, VPN ANS D
Upon receipt of a bad segment, UDP?
A, It does flow control
B, It does not do flow and error control
C, It does error control
D, Retransmission ANS B
Which of following protocol is HTTP built upon?
A, IP
,B, TCP
C, UDP
D, SMTP ANS B
Which of following requirements are necessary for packet networks to support multiple and diverse
applications?
A, Transfer arbitrary message size
B, Low delay for interactive applications
C, Packets have maximum length
D, All of the above ANS D
What was the concern of the telephone system that motivated the ARPANET design?
A, Scalability
B, Vulnerability
C, Efficiency
D, None of the above ANS B
Question 4
Which of the following is an application layer protocol?
A, HTTP
B, UDP
C, DNS
D, TCP ANS A
, Which of the following are features of ARPANET design?
A, Connectionless packet transmission
B, Routing tables at the packet switches
C, Destinations identified by unique addresses
D, All of the above ANS D
Bluetooth is an example of
A, Local Area Network
B, Wide Area Network
C, Metropolitan Area Network
D, Personal Area Network ANS D
In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are
A, Removed
B, Modified
C, Added
D, Rearranged ANS C
The ________ is the physical path over which a message travels
A, Protocol
B, Route
C, Medium
