Training to use a computer is usually a free service.
Answer the following statement true (T) or false (F)
False
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This is a set of rules that must be followed when constructing a program:
a. syntax b. punctuation c. key words d. operators e. identifiers
Which of the following states the Rule of Entity Integrity?
a. Every row must have a value for the primary key and each value must be unique. b. Every foreign key must appear as another table’s primary key. c. Every row must have a value for the primary key and values may be repeated. d. None of the above.
Regarding recursion, if a base case is never reached the result is:
a. infinite recursion b. iteration c. termination d. all of the above
How many files are displayed now, more than before? Explain.
Work with hidden files in Linux. a. In Linux, files with names that begin with a ‘.’ (single dot) are not shown by default. While dot-files have nothing else special about them, they are called hidden files because of this feature. Examples of hidden files are .file5, .file6, .file7. b. Use ls -l to display the files stored in the analyst home directory.
[analyst@secOps ~]$ ls –lc. Use the ls -la command to display all files in the home directory of analyst, including the hidden files.
[analyst@secOps ~]$ ls –la