Which of the following is not an advantage of functions in C?
A. Problems can be factored into understandable and manageable steps.
B. Functions make it possible to develop programs easily and rapidly.
C. Functions provide a way to reuse code.
D. Functions can be grouped into libraries for reuseability.
E. Functions protect data from accidental access by other functions.
Answer: B
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Which statement is false?
a. Streams-based transmission is connection-oriented. b. Connection-oriented transmission is like the telephone system. c. Datagram-based transmission is connection oriented. d. Connectionless transmission is like the way the mail is carried by the postal service.
Answer the following statements true (T) or false (F)
1. A random number would not be a good choice for a nonce. 2. The distribution of session keys delays the start of any exchange and places a burden on network capacity. 3. Although public announcement of public keys is convenient, anyone can forge a public announcement. 4. X.509 is an important standard because the certificate structure and authentication protocols defined in X.509 are used in a variety of contexts. 5. Because certificates are forgeable they cannot be placed in a directory without the need for the directory to make special efforts to protect them.
The difference between pretest and posttest loops pertains to how the accumulator is evaluated.
Answer the following statement true (T) or false (F)
What is the first step Disk Cleanup does when it starts?
A) Compresses old files. B) Deletes temporary Internet files. C) Empties the Recycle Bin. D) Scans the selected disk for files that can be deleted.