CADENCE Placement Papers
CADEANCE
Interview Procedure
The information on the interview is pretty sketchy but it may consist of
both technical grilling and HR interview.
The written test consists of the following sections:
1. Software Section -- Consists of 10 questions of MCQ type. (10 min)
2. Hardware Section -- Consists of 10 questions of MCQ type. (10 min)
3. Aptitude Section -- Consists of 55 questions of MCQ type. Aptitude
Questions were analytical and were to be done in 55 min.
SAMPLE PAPER – I
Technical
1. Inorder and preorder trees (expressions) are given and postorder tree
(expression) is to be found out.
2. given a grammar, in which some productions of if then else etc were
given. you had to choose one option that can be derived out of the grammar.
3. how many flip flops you require for modulo 33 counter.
ans : 6 f/f
4. 7 bit ring counter's initial state is 0100010. after how many clock
cylces will it return to the initial state.
ans : 6 cycles
5. some boolesn expression of the form x'y'z' + yz +.. ( something like
this) find the simplified expression
ans:z(x+y)
6. given 6 bit mantissa in 2s complement form and 4 bit exponent is in
excess-4 form in a floating point representation, find the number
ans -(something) * ( 2 to the power 3)
7. A signed no is stored in 10-bit register, what is
the max and min possible value of the number.
ans : 2^10 - 1.....max -2^10 ......min
13.int y int x
y=5+ x=5-
+ -
+ -
+ -
6*3 6*3
; ;
printf("%d", x); printf("%d",y);
what would be the o/p of the code.
ans : x=23;y=23;
8. a queue four elements a,b,c,d are there ,a=head d=tail. now following
operations are performed
1.deletion
2, insertion of w and then x
3. again deletion
4. insertion of y
what is the format of the queue
9. configuration of four nand gates forming a XOR gate, but replace the
last nand gate with a NOR gate.find the output expression.
10. simplify xy(bar)z+xy(bar)+xyz
11.operator overloading in c++ is
ans.provide operators with user defined functions.
12. in a machine a flating point number is represented in 2's complement
mantissa 6 MSB exponent 4 LSB(excess 4 form) then 01101_0111(10 bits)
ans .656 * 2exp(-3)
Aptitude
1. A room is 30 X 12 X 12. a spider is ont the middle of the samller wall,
1 feet from the top, and a fly is ont he middle of the opposite wall 1 feet
from the bottom. what is the min distance reqd for the spider to crawl to
the fly.
2. A man while going dowm in a escalator(which is moving down) takes 50
steps to reach down and while going up takes 250 steps. If he goes 5 times
faster upwards than downwards. What will be the total no of steps if the
escalator werent moving.
ans 150 steps
3. 2/3 of corckery(plates) are broken, 1/2 have someother thing(handle)
broken , 1/4 are both broken and handle broken. Ultimately only 2 pieces of
corckery were without any defect. How many crockery were there in total.
ans 24
4. There were 105 handshakes . how many persons were there in party.
5. there were 6 boys and 6 girls . how many ways they can be arranged in a
pair.
6. 15*/+120+*9/8 convert into postfix and calculate
ans. 98
7. meanings of word infallability(antonym) -> mistakingly conjurations
(synonym): incantation
8. ring _ _ _ ater
fill in the dash with three letter to form a meaning
ful word
ans. mas
9. willing _ _ _ _ sports. (four letter word)
23. there was a question in which few incomplete
letters were given and we have to complete with three
letters so that they all form a meaningful word.
wh_ _ _
r_ _ _
ans. ich
10. complete the series
12 8 14 7 16 _
ans 6
11.[ : E THEN CIRCLE INSIDE A CIRCLE IS: -----
ANS CIRCLE WITH A DASH AS A RADIUS.
27.A GEOMETRICL QUESTION WITH TRIANGLE IN A
QUADRANT(can not draw the figure)
ans 10(probably)
12. question regarding tyre and its properties.
ans: tyre is rubber and flexible.
13.
___________________________________________________
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|_______| | |_______| |__not_ |_______| |
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|_____________________|_____________|____and_|___
boxes are negative edge triggered flip flops and 'not'
and 'and' are
gates. What is this figure.
ans- modulo-6.
14. srike odd man out
a. object
b. time
c. room
d. person
e. reason
15. a man facing east rotates 100(degree) clockwise then 145(degree)
anticlockwise.what is new direction of man.'
ans: north east
17. complete the series
M N J Q G ---
ANS : H
18. .HOW MANY ZEROS IN BINARY EQUIVALENT OF
15*10^9+4*2^5+3
ANS:5
(check
for expression , but ans. is correct )
19. WHAT IS THE CONDITION OF B&C FOR OUTPUT TO BE ----
ANS:B=0, C=1.
20. there is a 4:1 mux. obtain fn (B' OR (A' XOR C)) when control inputs
are A(LSB) & B(MSB), what should be the inputs (I0, I1, I2, I3).
ANS: 1 1 C' C
21. excess 3 code of nos. 0 to 9 is given by nos ABCD
0 1100
1
. ...
9 ...
fIND The minimised function?
22. 21 base A-K,ie A=10, B=11, .. K=20 What is the Octal equivalent of KA?
ans. 656
23. odd man out
a) rhoes
b) hepes
c) owc
d) guinepen
ans d) jumbled letters for penguin
24.
odd man out
a) richa
b) bleat
c) pratec
d)
ans) jumbled for carpet
25) one simple question wherein a rectangle is inscribed in a circle and
one of the diagonal is to be found...which is the radius of the
circle...hence the
ans is 10.
26. there is a treeking team which takes a halt after 10 hours and the
leadership changes after 5 hours. leadership changes in alphabetical
order...kamala is leading now with mary ,malti, ---and sita...who will lead
after two rests.
ans. sita.
SAMPLE PAPER – II
Technical
1.in assembler relocatable code generated by ...!!??
asn: indirect addressing
2. int v,u;
while(v != 0)
{
t = v % u;
v = u;
u = t;
}
find the time complexity of the above program.
3. x is passed by reference, y passed by value.
x = 3, y = 2;
foo(x, y)
var integer x, y;
{
x = x + 2;
y = y + 3;
}
main()
{
x = 5;
y = 5;
foo(x, y);
print (x, y);
}
output of the above pseudo code.
4. how many flip flops you require for modulo 19 counter.
5. ring counter's initial state is 01000. after how many clock cylces will
it return to the initial state.
6. some boolesn expression of the form x'y'z' + yz + .. ( something like
this) find the simplified expression
7. given 6 bit mantissa in 2s complement form and 4 bit exponent is in
excess-4 form in a floating point representation, find the number
ans -(something) * ( 2 to the power 3)
8. A signed no is stored in 10-bit register, what is the max and min
possible value of the number.
Aptitude
1. log( X**3 + Y**3) where x=3/4 y=1/4
log(3) , log(7) & log(2) is given ...
ans:-0.385
2 last question of paper ..
sum of money of A & B =Rs.10
diffrence of A + B = Rs.9
ans : 50 pesa
3. one paper is equlely folded 50 times...
what is new thikness of paper..
ans: 2**50
4. connect nine point without take-off pen & without overlapping line
segment
1 2 3 4
* * * 5
* * * 6
0* * * 7
ans: start with 0 to 1 to 7 to 0 to 4 .
5. make four equle parts..
----
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| |--
| |
| |
--------
hint : repeat same shape in it.
6. A room is 30 X 12 X 12. a spider is ont the middle of the samller
wall, 1 feet from the top, and a fly is ont he middle of the opposite wall
1 feet from the bottom. what is the min distance reqd for the spider to
crawl to the fly.
7. A man while going dowm in a escalator(which is miving down) takes 50
steps to reach down and while going up takes 125 steps. If he goes 5 times
faster upwards than downwards. What will be the total no of steps if the
escalator werent moving.
8. 2/3 of corckery(plates) are broken, 1/2 have someother thing(handle)
broken , 1/4 are both broken and handle broken. Ultimately only 2 pieces
of corckery were without any defect. How many crockery were there in
total.
9.
___________________________________________________
___|___ ___|___ ___|___ |
| | | | | | |
| |__ | |___ | |___ |
|_______| | |_______| |__not_ |_______| | |
| | | |
|_____________________|_____________|____and_|___
boxes are negative edge triggered flip flops and 'not' and 'and' are
gates. What is this figure.
ans- modulo-5
10.
It is difficult to draw a figure but another question was in which some
NAND and OR gates were given.
ans - Z = true.
* * * * *
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123
Eng