Technical Questions

Q:

What is a drawback of MVT?

Answer

It does not have the features like



  1. ability to support multiple processors

  2. virtual storage

  3. source level debugging

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Q:

How many bit combination are there in a byte?

Answer

Byte contains 8 combinations of bits.

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Subject: Hardware

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Q:

What would be the output of the following program?

# define SQR(x) (x * x)

main()

{

    int a, b = 3;

    a = SQR ( b + 2 );

    Printf ("\n %d ", a );

}

Answer

11


Because, on preprocessing the expression becomes  a = ( 3 + 2 * 2 + 3),  as Ist preference is multiply & then addition, it evalvates as(3+ 2 * 3 +2) = (3+6+2)=11.

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Subject: Programming

1 2234
Q:

What are the flags in 8086?

Answer

In 8086 Carry flag, Parity flag, Ausiliary carry flag, Zero flag, Overflow flag, Trace flag, Interrupt flag, Direction flag, and Sing flag.

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Q:

In HTML, ___________ tag is used to construct drop-down list boxes and scrolling list boxes.

A) <SELECT> B) <OPTION>
C) <TEXTAREA> D) <INPUT>
 
Answer & Explanation Answer: A) <SELECT>

Explanation:
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Q:

Can RC circuit be used as clock source for 8085?

Answer

Yes, it can be used, if an accurate clock frequency  is not required. also the component cost is low compared to LC or Crystal.

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Subject: Hardware

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Q:

Is the address bus unidirectional?

Answer

The address bus is unidirectional because the address information is always given by the micro processoe  to address a memory location of an input / output devices.

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Subject: Hardware

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Q:

What are the different job scheduling in operating systems?

Answer

Scheduling is the activity of the deciding when process will receive the resources they request.


FCS ---> FCSFS stands for First Come First Served. In FCFS the job that has been waiting the longest is served next.


Round Robin Scheduling--->Round Robin scheduling is a scheduling method where each process gets a small quantity of time to run and then it is preempted and the next process gets to run. This is called time-sharing and gives the effect of all the processes running at the same time


Shortest Job First ---> The Shortest job First scheduling algorithm is a nonpreemptive scheduling algorithm that chooses the job that will execute the shortest amount of time.


Priority Scheduling--->Priority scheduling is a scheduling method where at all times the highest priority process is assigned the resource.

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