Suppose the Internet never corrupted packets (but it still occasionally dropped packets).

Which of the following TCP header fields would be unnecessary?

(Many answers may be true.)

What is "self clocking" in the context of TCP congestion control?

Which of the following statements related to flow control and congestion control are true?

(Many may be true.)

What are all the proper ways to initialize a variable a of the following type:

struct some_type {
    size_t s;
    double tab[3];
};

Penalty for wrong ticks.

What is the proper way to read an array of n double from a binary file myfile into

Assume count is already declared and has the proper type.

What is the proper way to augment the size (up to newsize) of an already allocated pointer ptr?

Consider a packet, temporarily stored in a queue of a store-and-forward packet switch, waiting to be transmitted over an outgoing link. Which of the following affect(s) the queuing delay experienced by this packet? 

(Many answers may apply.)

Source S is connected to destination D over a single link of transmission rate R. S sends a single tiny little packet to D and nothing else. You expect the average throughput achieved by this communication to be:

Which of the following operations may the network-layer of a device perform? 

(Many answers may apply.)