GATE CSE 2019 Paper 1 — page 7

Questions 19–21 of 65. Imported answers require review unless explicitly marked reviewed.

Let

be a square matrix. Consider the following two statements on

. I.

is invertible. II. Determinant of

is non-zero.

Which one of the following is TRUE?

Your answerChoose one option.

I implies II; II does not imply I.

II implies I; I does not imply II.

I does not imply II; II does not imply I.

I and II are equivalent statements.

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Let

be an arbitrary group. Consider the following relations on

if and only if

such that

if and only if

Which of the above is/are equivalence relation/relations?

Your answerChoose one option.

and

only

Neither

nor

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Consider the following two statements about database transaction schedules:

I. Strict two-phase locking protocol generates conflict serializable schedules that are also recoverable.

II. Timestamp-ordering concurrency control protocol with Thomas’ Write Rule can generate view serializable schedules that are not conflict serializable.

Which of the above statements is/are TRUE?

Your answerChoose one option.

I only

II only

Both I and II

Neither I nor II

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2019 · Paper 1

Question 9

Question 10

Question 11