Axes-Paper-1
1. A 2MB PCM(pulse code
modulation) has
a) 32 channels
b) 30 voice channels & 1 signalling
channel.
c) 31 voice channels & 1 signalling channel.
d) 32 channels
out of which 30 voice channels, 1 signalling channel, & 1 Synchronizatio
channel.
Ans: (c)
2. Time taken for 1
satellite hop in voice communication is
a) 1/2 second
b) 1
seconds
c) 4 seconds
d) 2 seconds
Ans: (a)
3. Max number of satellite
hops allowed in voice communication is :
a) only one
b) more han
one
c) two hops
d) four hops
Ans: (c)
4. What is the max.
decimal number that can be accomodated in a byte.
a) 128
b) 256
c)
255
d) 512
Ans: (c)
5. Conditional results
after execution of an instruction in a micro processor is stored in
a)
register
b) accumulator
c) flag register
d) flag register part of
PSW(Program Status Word)
Ans: (d)
6. Frequency at which
VOICE is sampled is
a) 4 Khz
b) 8 Khz
c) 16 Khz
d) 64
Khz
Ans: (a)
7. Line of Sight is
a) Straight Line
b) Parabolic
c) Tx & Rx should be visible to
each other
d) none
Ans: (c)
8. 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.
c) count
the number of instructions.
d) to store base address of the
stack.
Ans: (b)
9. 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.
b) Processor serves the interupt request after completing the
current task.
c) Processor serves the interupt request immediately.
d)
Processor serving the interrupt request depends upon the priority of the current
task under execution.
Ans: (a)
10. The status of the
Kernel is
a) task
b) process
c) not defined.
d) none of the
above.
Ans: (b)
11 What is the nominal
voltage required in subscriber loop connected to local exchange?
a) +48
volts
b) -48 volts
c) 230 volts
d) 110 volts
12. 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.
d) none of the
above.
Ans: (c)
13. Word allignment
is
a) alligning the address to the next word boundary of the
machine.
b) alligning to even boundary.
c) alligning to word
boundary.
d) none of the above.
Ans: (a)
14. When a 'C' function
call is made, the order in which parameters passed to the function are pushed
into the stack is
a) left to right
b) right to left
c) bigger
variables are moved first than the smaller variales.
d) smaller variables are
moved first than the bigger ones.
e) none of the above.
Ans: (b)
15. What is the type of
signalling used between two exchanges?
a) inband
b) common channel
signalling
c) any of the above
d) none of the above.
Ans: (a)
16. Buffering is
a) the process of temporarily storing the data to allow for small
variation in device speeds
b) a method to reduce cross talks
c) storage of
data within transmitting medium until the receiver is ready to receive.
d) a
method to reduce routing overhead.
Ans: (a)
17. A protocol is a set of
rules governing a time sequence of events that must take place between
a)
peers
b) non-peers
c) allocated on stack
d) assigned to
registers.
18. Memory allocation
of variables declared in a program is
a) allocated in RAM.
b)
allocated in ROM.
c) allocated on stack.
d) assigned to
registers.
Ans: (c)
19. A software that allows
a personal computer to pretend as a computer terminal is
a) terminal
adapter
b) bulletin board
c) modem
d) terminal
emulation
Ans: (d)
The following questions
(Q20-Q33) are of a slightly different pattern than those above and may also be
asked:
20. Find the output of
the following program
int *p,*q;
p=(int
*)1000;
q=(int *)2000;
printf("%d",(q-p));
Ans: 500
21. What does the
statement int(*x[])() indicate?
22. Which addressing
mode is used in the following statements:
(a) MVI B,55
(b)
MOV B,A
(c) MOV M,A
Ans:
(a) Immediate
addressing mode.
(b) Register Addressing Mode
(c) Direct addressing
mode
23. RS-232C standard
is used in _____________.
Ans. Serial
I/O
24. How are parameters
passed to the main function?
25. What does the file
stdio.h contain?
a) functin definition
b) function decleration
c)
both func. defn & func. decleration.
26. sscanf() is used
for ?
27. Memory-Management
in Operating Systems is done by
a) Memory Management Unit
b) Memory
management software of the Operating System
c) Kernel
Ans: (b)
28. What does the
statement strcat(S2,S1) do?
29. TCP(Transmission
Control Protocol) is Connection Oriented and used in ______________
layer?
30. IP(Internet
Protocol) is connectionless and used in _________________
layer?
31. For LAN Netwrok
layer is not required. Why?
32. What is done for a
Push opertion?
Ans: SP is decremented and
then the value is stored.
33. Describe the
following structures as LIFO/FILO/FIFO/LILO
(a) Stack b)
Queue
These were selection
processes involved :
1. Written test
(Aptitude),
2. Technical test (Microprocessor,
Data
communications, Operating systems, C, C++),
3. Technical
Interview (related to C, Data
Communication,
Microprocessor),
4. Group discussion ( Topic : How to develop India
?
The group can choose specific areas such as
Education,
Poverty, IT, etc),
5. HR interview (related to
personal details).
Computer
science branch students had 4 sections
to
answer:
1 .General aptitude
(simple - easier than
RSAgarwal)
Q-11. was wrong it was
relating to some fatal
relationship. the other's were
number
sequencing,
GRE analogies, antonyms (abt. 10
q's).
totally about 50 q's
2 .Microcontroller 8086 (basics
only,some q's like
max. unsigned number in 8086 ans = 2power16
)
there were some small codes you need to trace.
3 .'c' was
simple, there were some stubs o/p was
to be traced. there was one bit
wise 'or'
problem
4 .I felt this the toughest
(Java/C++/OSconcepts)
Java and C++ were general questions, no
progs.
and os was easy. (i guess i got just 40 % right
in
this section)