Which of the following is the complement of equal (==)?
A. >
B. >=
C. <=
D. !=
E. ==
Answer: D
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What do the following statements do?
a. Open a file for output, the statement fails if the file already exists. b. Open a file for output, the contents of the file is destroyed if the file already exists. c. Open a file for input. d. Open a file for input, the statement fails if the file does not exist.
What process gives a user access to a file system on a mobile device with full permissions, essentially allowing the user to do anything on the device?
A. mirroring B. jailbreaking C. sideloading D. carrier unlocking
The problem with the lexical m-ary tree is that after a few levels it becomes very large. To prevent this, we ____ the tree; that is, we cut all of the branches that are not needed.
A. cleanse B. depurate C. prune D. fix
Answer the following statements true (T) or false (F)
1) An inner subquery may not use the ORDER BY clause. 2) The inner subquery does not have to be a SELECT statement. 3) A subquery may not be nested to more than 3 levels. 4) Operators ANY and SOME are same. 5) =ALL operator does not return any rows in most cases.