• Placement Questions

Frequently Asked Interview Questions and Answers

(#M40029688) GATE QUESTION GATE-CS Keep an EYE

On a non-pipe lined sequential processor, a program segment, which is a part of the interrupt service routine, is given to transfer 500 bytes from an I/O device to memory.
Initialize the address register
Initialize the count to 500 LOOP:
Load a byte from device Store in memory at address given by address register
Increment the address register Decrement the count
If count != 0 go to LOOP
Assume that each statement in this program is equivalent to a machine
instruction which takes one clock cycle to execute if it is a non-load/store
instruction. The load-store instructions take two clock cycles to execute.
The designer of the system also has an alternate approach of using the DMA
controller to implement the same transfer. The DMA controller requires 20 clock
cycles for initialization and other overheads. Each DMA transfer cycle takes two
clock cycles to transfer one byte of data from the device to the memory.
What is the approximate speedup when the DMA controller based design is used
in place of the interrupt driven program based input-output?
option
(A) 3.4
(B) 4.4
(C) 5.1
(D) 6.7

Asked In Gate Rats (12 years ago)

Unsolved

Is this Puzzle helpful?   (2)   (2) Submit Your Solution

(#M40011923) WIPRO QUESTION Keep an EYE

If the cost of rice decreases by 20%, a man is able to buy 25 kg more for Rs.1000. Find the Cost Price per kg

Asked In Wipro naresh (13 years ago)

Unsolved Read Solution (3)

Is this Puzzle helpful?   (11)   (3) Submit Your Solution Percentage

(#M40166720) CAPGEMINI QUESTION Keep an EYE

If 80 ml of water contains 15% of chlorine, how much water must be added in order to create a 12% chlorine solution?
(a)10ml (b)35ml (c)20ml (d)30ml

Asked In Capgemini Devendra Marghade (5 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (2)   (2) Submit Your Solution Alligation or Mixture

(#M40031124) OTHERS QUESTION Keep an EYE

Q. If arithmetic mean of six numbers is 4.5. What is the sum of these numbers

Asked In Others pramila (11 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (8)   (4) Submit Your Solution Arithmetic

(#M40019333) OTHERS QUESTION Keep an EYE

N is the smallest number that has 5 factors. How many factors does (N - 1) have??
2
3
4
5

Asked In Others mohan lal garg (12 years ago)

Unsolved

Is this Puzzle helpful?   (2)   (2) Submit Your Solution

(#M40165457) L&T QUESTION Percentage Keep an EYE

The value of a machine depreciates from Rs 32,768 to Rs 21,952 in three years. What is the rate % of depreciation?

Asked In L&T Devendra Marghade (7 years ago)

Unsolved Read Solution (4)

Is this Puzzle helpful?   (35)   (10) Submit Your Solution Percentage

(#M40013648) SSC QUESTION ARITHETICAL ABILITY Keep an EYE

IF X^2+2=2X
THEN THE VALUE OF
X^4-X^3+X^2+2 IS
1. 0
2. 1
3. -1
4. SQ ROOT OF 2

Asked In SSC NITESH SAHU (12 years ago)

Solved Dr.Dipin Singh Read Solution (3)

Is this Puzzle helpful?   (12)   (2) Submit Your Solution Algebra

(#M40003751) SELF QUESTION cube Keep an EYE

There are 128 cubes with me which are coloured according to two schemes viz.

64 cubes each having two red adjacent faces and one yellow and other blue on their opposite faces while green on the rest.
64 cubes each having two adjacent blue faces and one red and other green on their opposite faces, while red on the rest. They are then mixed up.
1.
How many cubes have at least two coloured red faces each ?
2.
What is the total number of red faces ?
3.
How many cubes have two adjacent blue faces each ?
.
How many cubes have only one red face each ?

anirban majumdar (13 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (10)   (11) Submit Your Solution Decision Making and Problem Solving

(#M40001575) TCS QUESTION latest question Keep an EYE

There are two water tanks A and B, A is much smaller than B. While water fills at the rate of 1 liter every hour in A, it gets filled up like, 10, 20, 40, 80, 160 in tank B. (At the end of first hour, B has 10 liters, second hour it has 20 liters and so on). If tank B is 1/32 filled of the 21 hours, what is total duration of hours required to fill it completely?
a) 26 B) 25 c) 5 d) 27

Asked In TCS Aditi Sharma (14 years ago)

Unsolved Read Solution (3)

Is this Puzzle helpful?   (10)   (2) Submit Your Solution Time and Work

(#M40157760) CAMPUS QUESTION Keep an EYE

Walking at 3/4 of his usual speed, a man is 16 minutes late for his office. The usual time taken by him to cover that distance is ?

Asked In Campus LIZA RABHA (8 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (6)   (2) Submit Your Solution Age Problem