Professional Knowledge Quiz for IT Officers Exam Part - 4

1. The XOR operator + is?
1) Commutative
2) Associative
3) Distribute over AND operator
4) (1) and (2)
5) None of these

2. An Identifier in C?
1) Is a name of thing such as variable and function
2) Is made up of letters numerals and the underscore
3) Can contain both uppercase and lowercase letters
4) All of above
5) None of these

3. Milestones are used to?
1) Know the cost of the project
2) Know the status of the project
3) Know the user expectation
4) None of the above
5) None of these

4. The average search time of hashing with linear probing will be less if the load factor?
1) Is far less that one.
2) Equals one
3) Is far greater than one
4) None of above
5) None of these

5. Negative numbers can’t be represented in?
1) Signed magnitude
2) 1’s complement form
3) 2’s complement form
4) None of above
5) None of these

6. Sending a file from your personal computer’s primary memory or disk to another computer is called?
1) Uploading
2) Hang on
3) Logging on
4) Downloading
5) None of these

7. The memory cell of a dynamic RAM is simpler and smaller that the memory cell of a RAM?
1) Volatile
2) Semiconductor
3) Static
4) Bipolar
5) None of above

8. The normal form that is not necessarily dependency preserving is
1) 2NF
2) 3NF
3) BCNF
4) 4NF
5) None of these

9. Fifth normal form is concerned with
1) Functional dependency
2) Multivalued dependency
3) Join dependency
4) Domain key
5) None of these

10. A_________ Does not have a distinguishing attribute if its own and mostly are dependent entities, which are part of some another entity.
1) Weak entity
2) Strong entity
3) Non attributes entity
4) Dependent entity
5) None of these

11. ___________is the complex search criteria in the where clause.
1) Sub string
2) Drop table
3) Predict
4) Predicate
5) None of these

12. The term module in the design phase refers to?
1) Functions
2) Procedures
3) Sub-Programs
4) All of the above
5) None of these

13. Switch is a device of ______ Layer of OSI Model.
1) 1077
2) 1086
3) Application Layer
4) Session Layer
5) None of these

14. The number of binary trees with 3 nodes which when traversed in post-order gives the sequence A, B, C is?
1) 3
2) 9
3) 7
4) 5
5) None of these

15. Which database level is closest to the users?
1) External
2) Internal
3) Physical
4) Conceptual
5) None of these

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Answers:

1) 4
2) 4
3) 2
4) 1
5) 4
6) 1
7) 3
8) 1
9) 1
10) 1
11) 2
12) 3
13) 3
14) 2
15) 3


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