Questions & Correct Answers | Latest 2025/2026
Update
If arrival rate (in bits) to a link exceeds transmission rate of a link for a period of time.
a. packets will queue, wait to be transmitted on link
b. depends on congestion level of router
c. packets can be dropped (lost) if memory (buffer) fills up
d. All of the above correct answers d. All of the above
This term refers to the actual rate of data transfer.
a. Bandwidth
b. All of the above
c. Throughput
d. None of the above correct answers c. Throughput
This refers to the division of a message into smaller packets. Len Kleinrock developed
this.
a. Circuit Switching
b. Packet Switching
c. Bit Switching
d. None of the above correct answers b. Packet Switching
Checking bit errors and determining output link are part of this type of delay.
a. Queuing Delay
b. Propagation Delay
c. Nodal processing delay
d. Transmission Delay correct answers c. Nodal processing delay
Which statement is true about Propagation Delay?
a. The length of the packet is one of the factors that determine this delay b. The
distance and speed of of the medium determines this delay
c. The speed of the packet is a factor that determine this delay
,d. All of the above correct answers b. The distance and speed of of the medium
determines this delay
How long will a message of 16KB, and a speed of 4KBps, divided into 4KB packets,
over 3 links take?
a. 6 secs
b. 8 secs
c. 30 sec
d. All of the above correct answers a. 6 secs
This program provides delay measurement from source to router along end-end Internet
path towards destination.
a. Ping
b. Msconfig
c. Traceroute
d. None of the above correct answers c. Traceroute
What is the transmission delay of a packet?
a. L/R
b. Q/M
c. D/S
d. None of the above correct answers a. L/R
Activity in the Internet involving 2 or more communicating entities is governed by a
protocol.
a. True
b. False correct answers a. True
The network edge of the Internet isoften referred to as end systems or hosts.
a. True
b. False correct answers a. True
The network core is the mesh of packet switches & links that interconnects the Internet's
edge.
a. True
b. False correct answers a. True
Bandwidth refers
A. to the actual amount of data received
, B. the rate of the amount of data per unit of time.
C. the simultaneous transmission of audio and video signals
D. none of the above correct answers B. the rate of the amount of data per unit of time.
Who developed packet switching
A. Tim Berners-Lee
B. Vinton Cerf
C. Len Kleinrock
D. Mark Andreessen correct answers C. Len Kleinrock
One of the people responsible for the TCP/IP protocol stack.
A. Tim Berners-Lee
B. Vinton Cerf
C. Larry Roberts
D. Len Kleinrock correct answers B. Vinton Cerf
Who created the http protocol which gave birth to the WWW?
a. Mark Andreessen
b. Len Kleinrock
c. Tim Berners-Lee
d. Vinton Cerf correct answers c. Tim Berners-Lee
How many layers does the TCP/IP protocol stack have?
a. 1
b. 4
c. 2
d. 5 correct answers d. 5
Who developed the first browser?
a. Tim Berners-Lee
b. Larry Roberts
c. Marc Andreessen
d. Robert Kahn correct answers c. Marc Andreessen
Which layer deals with services?
a. Transport
b. Application
c. Network
d. Data Link correct answers b. Application