CS6250 Exam 2026 | Computer Networks Exam |
All Questions and Correct Answers | Verified
Answers | Just Released
How did Licklider and his team in the early 1960s experiment with a precursor to
the Internet? ---------CORRECT ANSWER-----------------Connecting two computers
over a dial up telephone line
What is the Domain Name System (DNS) designed to do primarily? ---------
CORRECT ANSWER-----------------Translate domain names into IP addresses
What is the architectural design of the Internet protocol stack based on? ---------
CORRECT ANSWER-----------------Layers
Both the data link and transports layer protocols may provide error correction ----
-----CORRECT ANSWER-----------------True
What allows for communication between the application layer and the transport
layer? ---------CORRECT ANSWER-----------------Sockets
Which of the following protocols belong to the application layer?
,Ethernet
IP (Internet Protocol)
DNS (Domain Name Service)
UDP (User Datagram Protocol) ---------CORRECT ANSWER-----------------DNS
(Domain Name Service)
Which two protocols belong to the transport layer?
UDP
TCP
HTTP
IP ---------CORRECT ANSWER-----------------UDP and TCP
When an application sends a packet of information across the network, this
packet travels down the IP stack and undergoes what process? ---------CORRECT
ANSWER-----------------Encapsulation
,According to the end-to-end principle, where should most of the Internet's
functionality/intelligence be implemented? ---------CORRECT ANSWER-----------------
At the edges of a network
What is the difference between hubs, bridges, and routers? ---------CORRECT
ANSWER-----------------They operate on different layers of the IP stack
The transport layer protocols offer a logical connection between processes only if
the hosts reside in the same network ---------CORRECT ANSWER-----------------False
A sending host receives a message from the application layer and encapsulates it
with the transport layer header before passing it down to the network layer -------
--CORRECT ANSWER-----------------True
An application running on a host can bind to multiple sockets simultaneously ------
---CORRECT ANSWER-----------------True
The identifier of a UDP socket is a tuple of destination IP address and port ---------
CORRECT ANSWER-----------------True
, The identifier of a TCP socket is a tuple of source IP address and port ---------
CORRECT ANSWER-----------------False
UDP is considered more lightweight than TCP ---------CORRECT ANSWER--------------
---True
One of the functionalities that UDP offers is to increase or decrease the pace with
which the sender sends data to the receiver ---------CORRECT ANSWER----------------
-False
UDP offers basic error checking ---------CORRECT ANSWER-----------------True
Assume Hosts A, B, and C. Host A has a UDP socket with port 123. Hosts B and C
each send their own UDP segment to Host A. Hosts B and C cannot use the same
destination port 123 for sending their UDP segment ---------CORRECT ANSWER-----
------------False
TCP offers in-order delivery of the packets, flow control, and congestion control --
-------CORRECT ANSWER-----------------True
All Questions and Correct Answers | Verified
Answers | Just Released
How did Licklider and his team in the early 1960s experiment with a precursor to
the Internet? ---------CORRECT ANSWER-----------------Connecting two computers
over a dial up telephone line
What is the Domain Name System (DNS) designed to do primarily? ---------
CORRECT ANSWER-----------------Translate domain names into IP addresses
What is the architectural design of the Internet protocol stack based on? ---------
CORRECT ANSWER-----------------Layers
Both the data link and transports layer protocols may provide error correction ----
-----CORRECT ANSWER-----------------True
What allows for communication between the application layer and the transport
layer? ---------CORRECT ANSWER-----------------Sockets
Which of the following protocols belong to the application layer?
,Ethernet
IP (Internet Protocol)
DNS (Domain Name Service)
UDP (User Datagram Protocol) ---------CORRECT ANSWER-----------------DNS
(Domain Name Service)
Which two protocols belong to the transport layer?
UDP
TCP
HTTP
IP ---------CORRECT ANSWER-----------------UDP and TCP
When an application sends a packet of information across the network, this
packet travels down the IP stack and undergoes what process? ---------CORRECT
ANSWER-----------------Encapsulation
,According to the end-to-end principle, where should most of the Internet's
functionality/intelligence be implemented? ---------CORRECT ANSWER-----------------
At the edges of a network
What is the difference between hubs, bridges, and routers? ---------CORRECT
ANSWER-----------------They operate on different layers of the IP stack
The transport layer protocols offer a logical connection between processes only if
the hosts reside in the same network ---------CORRECT ANSWER-----------------False
A sending host receives a message from the application layer and encapsulates it
with the transport layer header before passing it down to the network layer -------
--CORRECT ANSWER-----------------True
An application running on a host can bind to multiple sockets simultaneously ------
---CORRECT ANSWER-----------------True
The identifier of a UDP socket is a tuple of destination IP address and port ---------
CORRECT ANSWER-----------------True
, The identifier of a TCP socket is a tuple of source IP address and port ---------
CORRECT ANSWER-----------------False
UDP is considered more lightweight than TCP ---------CORRECT ANSWER--------------
---True
One of the functionalities that UDP offers is to increase or decrease the pace with
which the sender sends data to the receiver ---------CORRECT ANSWER----------------
-False
UDP offers basic error checking ---------CORRECT ANSWER-----------------True
Assume Hosts A, B, and C. Host A has a UDP socket with port 123. Hosts B and C
each send their own UDP segment to Host A. Hosts B and C cannot use the same
destination port 123 for sending their UDP segment ---------CORRECT ANSWER-----
------------False
TCP offers in-order delivery of the packets, flow control, and congestion control --
-------CORRECT ANSWER-----------------True
