CS6250 COMPUTER NETWORKS EXAM 1
2026/2027 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |CURRENTLY TESTING
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST |BRAND NEW
VERSION|JUST RELEASED!!
The data plane functions of a traditional router are implemented in hardware
True
The control plane functions of a traditional router are implemented in software
True
The forwarding plane operations take place in shorter time scales than the control plane
operations
True
The forwarding functions of a traditional router refer to transferring packets from the input
ports to the appropriate output ports
True
The control plane functions can either be implemented in the router's processor or they can be
"outsourced" for implementation at a remote controller
True
Using packet classification techniques we can perform packet forwarding based on multiple
criteria, and not just based on destination IP address
1|Page
,True
The backtracking approach has a higher cost in terms of time, whereas the set-pruning
approach has a higher cost in terms of memory
True
The grid of tries technique offers a "middle ground" approach, merging the backtracking and
set-pruning techniques
True
The head-of-line blocking refers to the problem when an entire queue remains blocked because
the head of the queue is blocked
True
One technique to avoid head of line blocking is with parallel iterative matching
True
With parallel iterative matching the input links are "matched" with output links in a fixed
manner that stays the same as the rounds are progressing
False
With the token bucket traffic approach, we can still have bursts of traffic entering the network,
but these burts are capped
True
With the leaky bucket approach, we only allow the traffic to enter the network in a configured
rate.
True
Traffic policers target to limit traffic bursts to a configured max, whereas traffic shapers target to
smooth out the overall rate
2|Page
, True
With the leaky bucket we can still have discarded packets
True
How did Licklider and his team in the early 1960s experiment with a precursor to the Internet?
Connecting two computers over a dial up telephone line
What is the Domain Name System (DNS) designed to do primarily?
Translate domain names into IP addresses
What is the architectural design of the Internet protocol stack based on?
Layers
Both the data link and transports layer protocols may provide error correction
True
What allows for communication between the application layer and the transport layer?
Sockets
Which of the following protocols belong to the application layer?
Ethernet
IP (Internet Protocol)
DNS (Domain Name Service)
UDP (User Datagram Protocol)
DNS (Domain Name Service)
3|Page
2026/2027 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |CURRENTLY TESTING
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST |BRAND NEW
VERSION|JUST RELEASED!!
The data plane functions of a traditional router are implemented in hardware
True
The control plane functions of a traditional router are implemented in software
True
The forwarding plane operations take place in shorter time scales than the control plane
operations
True
The forwarding functions of a traditional router refer to transferring packets from the input
ports to the appropriate output ports
True
The control plane functions can either be implemented in the router's processor or they can be
"outsourced" for implementation at a remote controller
True
Using packet classification techniques we can perform packet forwarding based on multiple
criteria, and not just based on destination IP address
1|Page
,True
The backtracking approach has a higher cost in terms of time, whereas the set-pruning
approach has a higher cost in terms of memory
True
The grid of tries technique offers a "middle ground" approach, merging the backtracking and
set-pruning techniques
True
The head-of-line blocking refers to the problem when an entire queue remains blocked because
the head of the queue is blocked
True
One technique to avoid head of line blocking is with parallel iterative matching
True
With parallel iterative matching the input links are "matched" with output links in a fixed
manner that stays the same as the rounds are progressing
False
With the token bucket traffic approach, we can still have bursts of traffic entering the network,
but these burts are capped
True
With the leaky bucket approach, we only allow the traffic to enter the network in a configured
rate.
True
Traffic policers target to limit traffic bursts to a configured max, whereas traffic shapers target to
smooth out the overall rate
2|Page
, True
With the leaky bucket we can still have discarded packets
True
How did Licklider and his team in the early 1960s experiment with a precursor to the Internet?
Connecting two computers over a dial up telephone line
What is the Domain Name System (DNS) designed to do primarily?
Translate domain names into IP addresses
What is the architectural design of the Internet protocol stack based on?
Layers
Both the data link and transports layer protocols may provide error correction
True
What allows for communication between the application layer and the transport layer?
Sockets
Which of the following protocols belong to the application layer?
Ethernet
IP (Internet Protocol)
DNS (Domain Name Service)
UDP (User Datagram Protocol)
DNS (Domain Name Service)
3|Page
