________ enables connectionless network communication with datagram sockets.
a) UDP.
b) TCP.
c) HTTP.
d) None of the above.
b) TCP.
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Which of the following network topologies would MOST likely be used to provide redundancy at each network device to support data transmissions?
A. Mesh B. Ring C. PBX D. Bus
Answer the following statements true (T) or false (F)
1) The central themes of operating system design are all concerned with the management of processes and threads. 2) It is possible in a single-processor system to not only interleave the execution of multiple processes but also to overlap them. 3) As an extension of the principles of modular design and structured programming, some applications can be effectively programmed as a set of concurrent processes. 4) Race condition is a situation in which two or more processes continuously change their states in response to changes in the other process(es) without doing any useful work. 5) The sharing of main memory among processes is useful to permit efficient and close interaction among processes because such sharing does not lead to any problems.