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GATE-2018 live Quiz Session Questions: 25/01/2018

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Question 1

Find the highest normal form of a relation R(A,B,C,D,E) with FD set as {BC->D, AC->BE, B->E}

Question 2

A customer’s telephone number is stored in a customer file, a sales agent file, and in an invoice file. In database, this is known as

Question 3

A file is organized so that the ordering of data records is the same as or close to the ordering of data entries in some index. Then that index is called

Question 4

The five aggregations operators in SQL are

Question 5

Two transactions T1 and T2 are given as follows
T1: R1(B),R1(A),W1(A),W1(B)
T2: R2(A),W2(A)
Find the number of concurrent schedules

Question 6

Consider the following three address code table.

Which of the following expression represents the above three address code (quadruple notation)

Question 7

Which of the following statement(s) is/are true?
S1: Right recursion is needed for termination in predictive parsers.
S2: Left recursion requires more stack space than right recursion.
S3: Left recursion works fine in bottom-up parsers.

Question 8

In C programming, which of the following is not used as a token separator during lexical analysis?

Question 9

Among simple LR (SLR), canonical LR, and look-ahead LR (LALR), which of the following pairs identify the method that is very easy to implement and the method that is the most powerful, in that order?

Question 10

Consider the following SDT
G