1

GATE CSE 1989

Fill in the Blanks

+2

-0

The transitive closure of the relation

$$\left\{ {\left( {1,2} \right)\left( {2,3} \right)\left( {3,4} \right)\left( {5,4} \right)} \right\}$$

on the set $$A = \left\{ {1,2,3,4,5} \right\}$$ is ________ .

$$\left\{ {\left( {1,2} \right)\left( {2,3} \right)\left( {3,4} \right)\left( {5,4} \right)} \right\}$$

on the set $$A = \left\{ {1,2,3,4,5} \right\}$$ is ________ .

2

GATE CSE 1989

Subjective

+2

-0

How many sub strings can be formed from a character string of length $$n$$?

3

GATE CSE 1989

Subjective

+2

-0

Which of the following graphs is / are planar? (see fig.)

4

GATE CSE 1989

Subjective

+2

-0

Match the pairs in the following question.

**List - $${\rm I}$$**

$$(A)$$$$\,\,\,\,$$ Virtual Memory

$$(B)$$$$\,\,\,\,$$ Shared memory

$$(C)$$$$\,\,\,\,$$ Look-ahead buffer

$$(D)$$$$\,\,\,\,$$ Look-aside buffer

**List - $${\rm II}$$**

$$(p)$$$$\,\,\,\,$$ Temporal locality

$$(q)$$$$\,\,\,\,$$ Spatial Locality

$$(r)$$$$\,\,\,\,$$ Address Translation

$$(s)$$$$\,\,\,\,$$ Mutual exclusion

Paper analysis

Total Questions

Discrete Mathematics

3

Operating Systems

2

Programming Languages

2

Theory of Computation

4

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