Which of the following is not a disadvantage of trying to modify a sequential access file?

a. Modifying data can potentially destroy other data.
b. It may be necessary to rewrite every record in the file to make a slight change.
c. Things that are stored in the same number of “raw data” bytes internally may not take up the same amount of
space in a file.
d. Overwriting a record with another record of the same size is very difficult.


d. Overwriting a record with another record of the same size is very difficult.

Computer Science & Information Technology

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If an array variable is dropped where a ____ can appear, Alice displays a menu from which you can select the ____ version of the subscript operation.

A. statement; write B. placeholder; write C. statement; read D. placeholder; read

Computer Science & Information Technology

The most commonly used public-key algorithm is_______, an encryption system developed in 1977 by MIT professors Ron Rivest, Adi Shamir and Leonard Adleman.

a) PGP. b) RSA. c) PKA. d) None of the above.

Computer Science & Information Technology

You can access frequently used applications in Mac OS X by clicking their icons on the ______________.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology

How many times is the println statement executed?

for (int i = 0; i < 10; i++) for (int j = 0; j < i; j++) System.out.println(i * j) a. 100 b. 20 c. 10 d. 45

Computer Science & Information Technology