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UGC-NET 2018: ( CO & DLD ) SpeedTest Quiz 8
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Question 1
In an enhancement of a CPU design, the speed of a floating point unit has been increased by 20% and the speed of a fixed point unit has been increased by 10%. What is the overall speed achieved if the ratio of the number of floating point operations to the number of fixed point operations is 2 : 3 and the floating point operation used to take twice the time taken by the fixed point operation in original design?
Question 2
Consider the following statements:
(a) Boolean expressions and logic networks correspond to labeled acyclic diagraphs.
(b) Optimal Boolean expressions may not correspond to the simplest networks.
(c) Choosing essential blocks first in a Karnaugh map and then greedily choosing the largest remaining blocks to cover may not give an optimal expression.
Which of these statement(s) is/are correct?
(a) Boolean expressions and logic networks correspond to labeled acyclic diagraphs.
(b) Optimal Boolean expressions may not correspond to the simplest networks.
(c) Choosing essential blocks first in a Karnaugh map and then greedily choosing the largest remaining blocks to cover may not give an optimal expression.
Which of these statement(s) is/are correct?
Question 3
Which of the following statement(S) is (are) not correct?
i. The 2’s complement of 0 is 0.
ii. In 2’s complement, the left most bit cannot be used to express a quantity.
iii. For an n-bit word (2’s complement) which includes the sign bit, there are 2n‒1 positive integers, 2n+1 negative integers and one 0 for a total of 2n unique states.
iv. In 2’s complement, the significant information is contained in the 1’s of positive numbers and 0’s of the negative numbers.
i. The 2’s complement of 0 is 0.
ii. In 2’s complement, the left most bit cannot be used to express a quantity.
iii. For an n-bit word (2’s complement) which includes the sign bit, there are 2n‒1 positive integers, 2n+1 negative integers and one 0 for a total of 2n unique states.
iv. In 2’s complement, the significant information is contained in the 1’s of positive numbers and 0’s of the negative numbers.
Question 4
Which one of the following represents the binary equivalent of the decimal number 25?
Question 5
The octal equivalent of hexadecimal (A.B)16
Question 6
A complete microcomputer system consists of
Question 7
The branch logic that provides making capabilities in the control unit is known as
Question 8
Consider a 32-bit microprocessor, with a 16-bit external data bus, driven by an 8 MHz input clock. Assume that this microprocessor has a bus cycle whose minimum duration equals four input clock cycles. What is the maximum data transfer rate for this microprocessor?
Question 9
A unix file system has 1-KB blocks and 4-byte disk addresses. What is the maximum file size if i-nodes contain 10 direct entries and one single, double and triple indirect entry each?
Question 10
In ___________ allocation method for disk block allocation in a file system, insertion and deletion of blocks in a file is easy.
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Apr 14GATE & PSU CS
