You can use a special value to represent situations in which an actual value is unknown, unavailable, or not applicable. This special value is called a(n) ____________________ data value.
Fill in the blank(s) with the appropriate word(s).
null
Computer Science & Information Technology
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The command to list all the files that have filenames that starts with letter a and ends with a number from 1to 5 is
a: ls a?1-5 b ls a[1-5]* c: ls a*[1-5] d: ls *a*[1,5]* e: ls ?a?1?5
Computer Science & Information Technology
Why does every graphic designer and advertising art director need a portfolio?
What will be an ideal response?
Computer Science & Information Technology
____ uses the unique human characteristics of a person for authentication (something the user is).
A. Digital certificates B. Passwords C. Biometrics D. Password tokens
Computer Science & Information Technology
Enumerated types can be added, subtracted, multiplied, and divided.
Answer the following statement true (T) or false (F)
Computer Science & Information Technology