Sify Previous Years Solved Sample Placement Papers
-
\(x\%\) of \(y\) is \(y\%\) of what?
(a) \(x/y\)
(b) \(2y\)
(c) \(x\) (Ans)
(d) Can't be determined
- Conditional results after execution of an instruction in a microprocessor are stored in:
(a) register
(b) accumulator
(c) flag register
(d) flag register part of PSW (Program Status Word) (Ans) - Frequency at which VOICE is sampled is:
(a) 4 kHz (Ans)
(b) 8 kHz
(c) 16 kHz
(d) 64 kHz - Line of Sight is:
(a) Straight Line
(b) Parabolic
(c) Tx & Rx should be visible to each other (Ans)
(d) none - Purpose of PC (Program Counter) in a MicroProcessor is:
(a) To store address of TOS (Top Of Stack)
(b) To store address of next instruction to be executed (Ans)
(c) count the number of instructions
(d) to store base address of the stack - What action is taken when the processor under execution is interrupted by a non-maskable interrupt?
(a) Processor serves the interrupt request after completing the execution of the current instruction (Ans)
(b) Processor serves the interrupt request after completing the current task
(c) Processor serves the interrupt request immediately
(d) Processor serving the interrupt request depends upon the priority of the current task under execution - The status of the Kernel is:
(a) task
(b) process (Ans)
(c) not defined
(d) none of the above - To send a data packet using datagram, connection will be established:
(a) before data transmission
(b) connection is not established before data transmission
(c) no connection is required (Ans)
(d) none of the above - Word alignment is:
(a) aligning the address to the next word boundary of the machine (Ans)
(b) aligning to even boundary
(c) aligning to word boundary
(d) none of the above -
When an operand is read, which of the following is done?
a) It is placed on to the output
b) It is placed in operator stack
c) It is ignored
d) Operator stack is emptied
Answer: a
Explanation: While converting an infix expression to a postfix expression, when an operand is read, it is placed on to the output. When an operator is read, it is placed in the operator stack.
- A can complete a project in 20 days, and B can complete the same project in 30 days. If A and B start working on the project together and A quits 10 days before the project is completed, in how many days will the project be completed?
(a) 18 days
(b) 27 days
(c) 26.67 days
(d) 16 days (Ans: A)
- If log 2 = 0.3010, find how many digits are contained in the number 256.
(a) 15
(b) 16
(c) 17
(d) Cannot be determined (Ans: C)
- Directions for Questions 41-45: Follow the directions given below to answer the questions that follow.
Your answer for each question below would be:
- (A) if ALL THREE items given in the question are exactly ALIKE.
- (B) if only the FIRST and SECOND items are exactly ALIKE.
- (C) if only the FIRST and THIRD items are exactly ALIKE.
- (D) if only the SECOND and THIRD items are exactly ALIKE.
- (E) if ALL THREE items are DIFFERENT.
- If in the word CALIBRE, the previous letter in the English alphabet replaces each consonant and each vowel is replaced by the next letter and then the order of letters is reversed, which letter will be third from the right end?
(A) A
(B) C
(C) B
(D) K
Ans: (D) - Which word cannot be made from the letters of following word: 'OBSTETRICIAN'
a) SIREN
b) TERMITE
c) RETAIN
d) SOBER
Ans: b) TERMITE - Which one of the numbers is wrong in the following series?
4, 8, 7, 14, 12, 24, 19, 36, 28
a) 12
b) 24
c) 28
d) 36
Ans: b) 24 - Starting from a point 'P' Dinesh walked 18 metres towards south. He turned to his left and walked 25 metres. He then turned to his left and walked 18 metres. He again turned to his left and walked 35 metres and reached a point 'Q'. How far is Dinesh from the point 'P' and in which direction?
a) 10 metres East
b) 10 metres West
c) 35 metres West
d) 10 metres South
Ans: b) 10 metres West - Sun : Star::
a) Day : Night
b) Lamp : Light
c) Bed : Sleep
d) Dove : Bird
Ans: d) Dove : Bird