Arrays in C

In the results of what Join types are NULL values possible?

• Natural Join

• Theta join

• Left/Right Outer Join

• Full Outer Join

Which of the following statements are true about arrays in Java? Select all that apply.

• Stores homogeneous data.

• Array index starts at 1.

• Size cannot be changed during runtime.

• Can store only user defined objects.

   

Which of the following classes extends HashMap and maintains the insertion order of the elements?

• TreeMap

• LinkedHashMap

• SortedMap

• none

RAID stand for _________

• Redundant Arrays of Idempotent Data

• Redundant Arrays of Independent Disks

• Redundant Arrays of Independent Data

• Redundant Arrays of Isolated Disks

For the given schedule, which is the equivalent serial schedule?

• T1 - T2 - T3

• T1 - T3 - T2

• T2 - T1 - T3

• T3 - T1 - T2

The minimal set of super key is called

• Primary key

• Secondary key

• Candidate key

• Foreign key

Which provides runtime environment for java byte code to be executed?

• JDK

• JVM

• JRE

• JAVAC

If a schedule S can be transformed into a schedule S' by a series of swaps of non-conflicting instructions, we say that S and S' are

• Conflict serializable

• Conflict equivalent

• View serializable

• Serializable

press twice on left button on mouse is

• clicking

• long press

• double click

• interval click

contra entry transactions recorded in

• F3

• F5

• F4

• F1