26 Questions
What is the maximum number of segments that can be outstanding during the specified duration?
25 segments
What is the maximum link utilization as per the given context?
26 segments
What formula can be used to calculate the window size for a window-based flow control mechanism?
w = 2BD + 1
What is the effect of the Bandwidth Delay Product on the protocol design choice?
It helps in deciding the window size
Considering a link bandwidth of 1Mbps and a delay of 1ms, which protocol would be better for flow control if the segment size is 1 KB?
TCP
What is the primary purpose of the Bandwidth Delay Product (BDP) in flow control?
To determine the optimal segment size for transmission
Given a bandwidth of 50 Kbps and a one-way transit time of 250 msec, what is the Bandwidth Delay Product (BDP) in segments assuming a segment size of 1000 bits?
12.5 segments
What is the round trip time (RTT) for a segment transmission and its corresponding ACK reception?
The RTT is twice the one-way latency
Which layer in the network protocol stack is responsible for end-to-end performance?
Transport Layer
What is the relationship between the Bandwidth Delay Product (BDP) and the segment size?
BDP increases as segment size increases
What is the primary goal of congestion avoidance in a network?
To regulate the sending rate based on what the network can support
Which of the following best describes the concept of Max-Min Fairness?
An allocation is max-min fair if the bandwidth given to one flow cannot be increased without decreasing the bandwidth given to another flow with a lesser allocation
What is the impact of network congestion on goodput and delay?
Network congestion decreases goodput and increases delay
What is the principle behind the Additive Increase Multiplicative Decrease (AIMD) congestion control algorithm?
The sending rate is increased additively and decreased multiplicatively based on network congestion
How does a bad congestion control algorithm affect fairness in a network?
Some flows can get disproportionately smaller share of bandwidth
What is the main challenge in implementing congestion control in a real network?
The dynamic nature of network flows
What is the primary disadvantage of using variable size buffers in the transport layer?
Complicated implementation
Which of the following is not an advantage of sliding window protocols in computer networks?
Less complexity
What is the Bandwidth-Delay Product (BDP) for a link with bandwidth 1 Mbps and delay of 1 ms?
1 Kb
Which of the following is not a function of the Transport Layer?
Addressing
What is the primary advantage of using a single large circular buffer for every connection?
Better memory utilization
What is the primary purpose of the Max Flow Min Cut Theorem?
To find the maximum flow in a network
What is the primary disadvantage of using small buffer sizes in the transport layer?
Added complexity in implementation
What is the primary role of the receiver buffer in the transport layer?
To store data after it is received from the network
What is the main purpose of dynamic buffer management in the transport layer?
To adjust buffer allocations based on the rate difference between the transport entity and the application
What is the primary role of the write() function in the transport layer?
To block the port until the complete data is written in the transport buffer
Explore the concept of Bandwidth Delay Product (BDP) as an important performance metric in computer networks and internet protocols. Learn about the calculation and significance of BDP in assessing end-to-end performance at the transport layer.
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