CISCO:
2012: Sept at Chennai
There
were almost 40 technical questions and 10 analytical questions. Total
50 questions.
Cisco Placements Technical questions :
1.
Which of the following is connectionless protocol
Ans:
UDP(User Datagram Protocol)
2.
#define
clrscr() 100
main()
{
clrscr();
printf("%d",clrscr());
}
3.
Which of the following is used for avoiding network congestion
buffering
caching
source-quench
all
of the above
4.
main()
{
int
a;
printf("%d",scanf(%d,&a));
}
whats
o/p of this program..what will b printed
Ans
:0
5.
main()
{
printf("as");
printf("\bhi");
printf("is\n");
}
wat
will b printed.
6.
main()
{
unsigned
short a=-1;
unsigned
char b=a;
printf("%d
%d ",a,b);
}
wat
is o/p of the program
a.
65535 -1 b. 65535 65535 c. -1 -1
7.
Arrays base address is 1000....array is a[5][4]..then wat is de
correct
address of a[4][3].
Ans:1056
8.
One packet is 64 bytes no. of pkts send is 16000 then total no. of
bytes send is
Ans
1024000
9.
#define maxval 5
int
main (void)
{
int
i=1;
if(i-maxval)
{
printf("inside");
}
else
{
printf("out");
}
find
o/p???
10.
#define
a 3+3
#define
b 11-3
main()
{
printf("%d",a*b);
}
what
is o/p?????
11.
A question in which segment address is given logical address is 800
base addresses also given you have to find physical address.
12.
Stack is used in a task
Ans:
temporary variables values
13.
Which of de following is not stored in activation record..
Ans:
some heap area
14.
main{
printf("%d",-1<<4);
} wats o/p??? ans: 0xfff0
15.
main() { int* s s=10
printf("%d,%d,%d,%d,%d,%d",*s++,(*s)++,++*s,++(*s)); }
whats o/p?
16.
There was a question on processor speed in nanocycles..then it
performs a instruction in x cycles..dont remember
17.
main() { int *i; int s=(int *)malloc(10*sizeof(int)); for
(i=0;i<10;i++) { printf("%d",i*i) } wats o/p
18.
One more similar question Cisco Conducted On
Computer awareness test.
1.
In the command scanf, h is used for
Ans.
Short int
2.
A process is defined as
Ans.
Program in execution
3.
A thread is
Ans.
Detachable unit of executable code.
4.
What is the advantage of Win NT over Win 95
Ans.
Robust and secure
5.
How is memory management done in Win95
Ans.
Through paging and segmentation
6.
What is meant by polymorphism
Ans.
Redefinition of a base class method in a derived class
7.
What is the essential feature of inheritance
Ans.
All properties of existing class are derived
8.What
does the protocol FTP do
Ans.
Transfer a file b/w stations with user authentication
9.In
the transport layer ,TCP is what type of protocol
Ans.
Connection oriented
10.Why
is a gateway used
Ans.
To connect incompatible networks
11.How
is linked list implemented
Ans.
By referential structures
12.What
method is used in Win95 in multitasking
Ans.
Non preemptive check
13.What
is meant by functional dependency
14.What
is a semaphore
Ans.
A method synchronization of multiple processes
15.What
is the precedence order from high to low ,of the symbols ( ) ++ /
Ans.(
) , ++, /
16.Preorder
of A*(B+C)/D-G Ans.*+ABC/-DG
18.
B-tree (failure nodes at same level)
19.
Dense index (index record appears for every search -key in file)
20.What
is the efficiency of merge sort
Ans.
O(n log n)
21.A
program on swapping ( 10,5 )was given (candidate cannot recollect)
22.In
which layer are routers used
Ans.In
network layer 23.In which layer are packets formed ( in network layer
)
24.
heap ( priority queue )
25.
Copy constructor ( constant reference )
26.Which
of the following sorting algorithm has average sorting behavior,
Bubble sort, merge sort, heap sort, exchange sort
Ans.
Heap sort
27.In
binary search tree which traversal is used for getting ascending
order values Inorder, post order, preorder Ans. In-order
28.What
are device drivers used for
Ans.To
provide software for enabling the hardware
29.
Irrelevant to UNIX command ( getty)
30.What
is fork command in UNIX
Ans.
System call used to create process
31.What
is make command in UNIX
Ans.
Used for-creation of more than one file
32.In
UNIX .profile contains
Ans.
Start up program
33.In
UNIX echo is used for
(
answer C)
34.In
UNIX 'ls 'stores contents in
Ans.inode
block QUANTITATIVE SECTION
1.
In a class composed of x girls and y boys what part of the class is
composed of girls A.y/(x + y) B.x/xy C.x/(x + y) D.y/xy [Ans.C ]
2.What
is the maximum number of half-pint bottles of cream that can be
filled with a 4-gallon can of cream(2 pt.=1 qt. and 4 qt.=1 gal) A.16
B.24 C.30 D.64 [Ans.D ]
3.
If the operation,^ is defined by the equation x ^ y = 2x + y,what is
the value of a in 2 ^ a = a ^ 3 A.0 B.1 C.-1 D.4 [Ans.B ]
4.
A coffee shop blends 2 kinds of coffee,putting in 2 parts of a 33p. a
gm. grade to 1 part of a 24p. a gm. If the mixture is changed to 1
part of the 33p. a gm. to 2 parts of the less expensive grade,how
much will the shop save in blending 100 grams. A.Rs.90 B.Rs.1.00
C.Rs.3.00 D.Rs.8.00 [Ans.C ]
5.
There are 200 questions on a 3 hr examination. Among these questions
are 50 mathematics problems. It is suggested that twice as much time
be spent on each maths problem as for each other question. How many
minutes should be spent on mathematics problems A.36 B.72 C.60 D.100
Ans.B
6.
In a group of 15,7 have studied Latin, 8 have studied Greek, and 3
have not studied either. How many of these studied both Latin and
Greek A.0 B.3 C.4 D.5
Ans.B
7.
If 13 = 13w/(1-w) ,then (2w)2 = A. 1/4 B. 1/2 C. 1 D. 2 [Ans.C ]
8.
If a and b are positive integers and (a-b)/3.5 = 4/7, then (A) b <
a (B) b > a
(C)
b = a (D) b >= a [Ans. A]
9.
In June a baseball team that played 60 games had won 30% of its game
played. After a phenomenal winning streak this team raised its
average to 50% .How many games must the team have won in a row to
attain this average? A. 12 B. 20 C. 24 D. 30 [Ans. C]
10.
M men agree to purchase a gift for Rs. D. If three men drop out how
much more will each have to contribute towards the purchase of the
gift.
A.
D/(M-3) B. MD/3 C. M/(D-3) D. 3D/(M2-3M) [Ans. D]
11.
A company contracts to paint 3 houses. Mr.Brown can paint a house in
6 days while Mr.Black would take 8 days and Mr.Blue 12 days. After 8
days Mr.Brown goes on vacation and Mr. Black begins to work for a
period of 6 days. How many days will it take Mr.Blue to complete the
contract? A. 7 B. 8 C. 11 D. 12 [Ans.C]
12.
2 hours after a freight train leaves Delhi a passenger train leaves
the same station travelling in the same direction at an average speed
of 16 km/hr. After traveling 4 hrs the passenger train overtakes the
freight train. The average speed of the freight train was?
A.
30 B. 40 C.58 D. 60 [Ans. B]
13.
If 9x-3y=12 and 3x-5y=7 then 6x-2y = ? A.-5 B. 4 C. 2 D. 8 [Ans. D]
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