In operating systems
Which of the following actions trigger context switching ?
a) System call
b) divided by zero exceptions
c) all of the above
Answer: System call
No of address lines required for 1 Mega Bytes of memory is
a) 20
b) 10
c) 12
Answer: A
In Open Systems Interconnect model, which of the following layers is responsible for terminal emulation?
a) Application layer
b) Presentation layer
c) Transport layer
Anwer: A
What is the minimum value that can be stored in 8 bits using signed int datatype ?
a) -255
b) -128
c) -127
Answer: B
Which is the smallest addressable unit of memory?
a) 1 bit
b) 1 byte
c) 1 word
Answer: A
What is the size of the memory unit, WORD ?
a) CPU specific
b) 1 byte
c) 2 bytes
Answer: A
How many bytes make one Octet ?
a) 2
b) 1
c) 8
Answer: B
Which layer of OSI is responsible for Modulation and Demodulation?
a) Physical Layer
b) Data Link Layer
c) Network Layer
Answer: A
Which Layer establishes, manages and terminates connections between local and remote applications?
a) Physical Layer
b) Session Layer
c) Data Link Layer
Answer: B
10 in 4 seconds, ? in 6 minutes
a) 800
b) 900
c) 650
Answer: B
Mohan earned twice as much as Deep.Yogesh earned rs.3/- more than half as much as deep. If the amounts earned by Mohan,Deep,Yogesh are M,D,Y respectively, Which of the following is the correct ordering of these amounts?
a) M< D < Y
b) M< Y < D
c) D < M < Y
d) It cann't be determined from the information given
e) D < Y < M
Answer: A
Given that A,B,C,D,E each represent one of the digits between 1 and 9 and that the following multiplication holds:
A B C D E
X 4
--------------
E D C B A
--------------
what digit does E represent ?
a) 4
b) 6
c) 7
d) 8
Answer: 8
From the following statements determing the order of ranking
M has double the amount as D
Y has 3 rupess more than half the amount of D
a) 15
b) Data insuffiecient
Answer: B
Placement Papers
10^2(10^8+10^8) =
--------------
10^4
a) 2(10)^4
b) 10^8
c) 2(10)^8
d) 10^10
e) 2(10)^6
Answer: E
At a special sale, 5 tickets can be purchased for the price of 3 tickets.
If 5 tickets are purchased at the sale, the amount saved will be
What percent of the original price of the 5 tickets?
a) 20%
b) 33.3%
c) 40%
d) 60%
e) 66.6%
Answer: C
An investor purchased a shares of stock at a certain price.
If the stock increased in price Rs 0.25 per share and the total increase for the x shares was Rs 12.50, how many shares of stock had been purchased ?
a) 25
b) 50
c) 75
d) 100
e) 125
Answer: B
How many integers n greater than and less than 100 are there such that,if the digits of n are reversed, the resulting integer is n+9 ?
a) 5
b) 6
c) 7
d) 8
e) 9
Answer: D
Total no of prime nos between 1 to 70
a) 20
b) 35
c) 26
Answer: A
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