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3i Infotech Technical question Papers 2012.
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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)
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)
Memory. Management in Operating Systems is done by
a) Memory Management Unit
b) Memory management software of the Operating System c) Kernel
Which of the following involves context switch,
(a) system call (b) priviliged instruction (c) floating poitnt exception
(d) all the above (e) none of the above Ans: (a)
In OST, terminal emulation is done in
(a) sessions layer (b) application layer (c) presentation layer
(d) transport layer Ans: (b)
The UNIX shell …
a) does not come with the rest of the system
b) forms the interface between the user and the kernal
c) does not give any scope for programming
d) deos not allow calling one program from with in another
e) all of the above Ans: (b)