Indian Space Research Organisation Placement Question Papers
ISRO Sample Question
1. The root directory of disk should be placed at___
2. DNS is basically used to ____
3. one more ques on DNS
4. abt TCP and UDP
5. TCP's which layer is there for the OSI's first three layers.
6. Multiprocessing models have— a)symmetric
b)unsymmetric models
c)none of the above
d) both
7. BCDhave binary nos in a)bis
b) bytes
c)nibble
8. Top-down parser ….
a) leftmost derivation
b)rightmost derivation
c)leftmost derivation in reverse
d)rightmost derivation in reverse
9. Loop which avoids check at every iteration
a) loop controlling b) loop jamming
10. one tree was given and some expressions were there and we have to find the correct postfix exprn
11. abt logic gates
12. worst case of Shell sort
13. sine wave can be split into
a)set of sine waves
b)set of sine waves with phase zero
14. Full binary tree with n vertices has how many leaf nodes somethng like this…
15. Complete graph with n vertices and somethng
16. in a cyclic graph with n vertices how many minimum edges
a)n
b)n/2…
Defence Research and Development Organisatio Placement Question Papers
1. If 100ns is Memory Access Time & 125 microsec is 1frame period. The no. of line that
can be supported in a Time Divison Switch is
a)125 Lines
b)625 Lines
c)525 Lines
d)465 Lines
2. The no. of edjes in disjoint Hamilton circuit in a complex graph with 17 edges is
a) 8
b) 9
c) 136
d) 17^2
3. 15 persons in a club sit every day ina dinner table such that every member has different
neighbour. This arrangement will last for how many days.
Assume a system has 16MB cache mean Disk Access Time & cache Access time is 76.5
ns & 1.5 overall mean Access time us 465ms for each tripling the memory the miss rate is
halved. The memory required to bring down the mean Access time to 24ns is
a) 16 MB
b) 24 MB
c) 32 MB
d) 48 MB
4. Average transfer speed of a i/p serial line is minimum 25,000 Bytes & maximum 60000
Bytes. Polling Strategy adopted takes 4microsec(whether there is any i/p byte or not). It is assured that byte that retrived from controller before next byte arrives are lost. Then the maximum safe polling interveal is
a) 12
b) 12.33
c) 12.67
d) 32
5. A harddisk has a rotation speed of 4500RPM. then the latency time is
a) .4
b) .6
c) .7
d) .9
6. Suppose all elements above the principal diagonal od n x n matix A are zero. If non zero elements of the lower triangular Matrix is stored in an array B with A[1][1] stored at B[1]. The addressing formula to the nonzero element in A[i][j]=?
a) A[i][j]
b) i(j-1)/2 +i
c) j(i-1)/2 +i
d) i(i-1)/2 +j
7. The minumum number of comparisons requied to find the second smallest element in a 1000 element array is
a) 1008
b) 1010
c) 1999
d) 2000
8. The internal path length of a Bonary Tree with 10nodes is 25. The external path length is
a) 25
b) 35
c) 40
d) 45
9. Average No. of Comparisons required to sort 3 elements is
a) 2
b) 2.33
c) 2.67
d) 3
10. In a switch the mean arrival rate of packets is 800 Packets/sec and the the mean service
rate is 925 Packets/sec
a) .008 Sec
b) .08 sec
c) .8 sec
d) 1.1 sec
11. What is Interface Control Information?
12. The minumum no. of Multiplications needed to compute x^768 is
a) 9
b) 10
c) 425
d) 767
13. Find values for a,b,c,d
c 1 1 1
0 a 1 b
_______
1 0 d 0
(967)basex = 321base9
PART II Genreal 50 General Non-Technical[4 Options]
14. The area of red planet where the Mars Rover Landed?
In Which Day world Telecom Day Celebrated?
Laser is used for what?
a) Treatment of Cancer
b) Treatment of Eyes
c) Treatment of Heart
d) Treatment of Kidney
15. Which country is not a Member of SAARC
a) Bangladesh
b) Myanmar
c) Maldives
d) Nepal
The New Biotechnology Software intorduced by TCS is?
16. The New Biotechnology Software intorduced by TCS is?
What is Wi Fi?
17. Which is the fastest Cruise Missile?
--
with warm regards
Harish Sati
Fortune Institute of International Business
Plot no. 5, Vasant Gaon, Rao Tula Ram Marg
Opp. R.R. Army Hospitial, New Delhi- 110057
Mobile No:- 09990646343
E-mail:- Harish.sati@gmail.com
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