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Technical Questions

Why Technical Knowledge?

In today's employment world, Information Technology plays major role. Technical knowledge along with Aptitude & Reasoning has become the doorway to software companies. When IT is extensively developing day to day, one should definitely acquire technical knowledge aiming to see career growth in software industry.


What in Technical Knowledge?

Programming Languages - to develop front end applications.

Database - to develop and maintain back end/ database applications.

Networking - understanding devices connected in network to communicate with each other as well as other networks.

Hardware - understanding processors, memory storage devices, Input & Output devices and more.

Operating System - to communicate between the software and Hardware in a computer.

Software Testing - the process of evaluating a system with the intend to satisfy specified requirements.


How to prepare for Technical Interviews?

One should be curious to knowledge updates; Software world is that place where you should keep updating with new market technology trends. Get some basic knowledge about all technical concepts as the logic remains same with any language and one can get the ease of working with any language in your company. Thoroughly get updates from your friends, IT magazines, Internet, News, etc. one can get knowledge from real time people through blogs.

Popular Latest Rated
Q:

When mapping a supertype/subtype relationship which of the following is true?

A) The supertype primary key is assigned to each subtype. B) The subtype primary key is assigned to each supertype.
C) There is no link between the supertype/subtype entities. D) There is no primary key/foreign key relationship between a supertype/subtype.
 
Answer & Explanation Answer: A) The supertype primary key is assigned to each subtype.

Explanation:
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Filed Under: Database

4 11825
Q:

What would be the output of the following program ?

main() 

{

       unsigned  int a = oxffff;

        ~a;

        printf ("%x", a);

}

A) ffff B) 0000
C) 00ff D) None of the above
 
Answer & Explanation Answer: A) ffff

Explanation:
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Filed Under: Programming

0 11647
Q:

main()

{

float me = 1.1;

double you = 1.1;

if(me==you)

printf("yes");

else

printf("No");

}

A) Yes B) No
C) Both D) Compilation error
 
Answer & Explanation Answer: B) No

Explanation:

For floating point numbers (float, double, long double) the values cannot be predicted exactly. Depending on the number of bytes, the precession with of the value represented varies. Float takes 4 bytes and long double takes 10 bytes. So float stores 0.9 with less precision than long double.

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Filed Under: Software Testing
Job Role: Software Architect

9 11459
Q:

What are 10Base2, 10Base5 and 10BaseT Ethernet LANs

Answer

10Base2—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband


signaling, with a contiguous cable segment length of 100


meters and a maximum of 2 segments.


 


10Base5—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband


signaling, with 5 continuous segments not exceeding 100


meters per segment.


 


10BaseT—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband


signaling and twisted pair cabling.

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Subject: Networking
Job Role: Network Engineer

3 11428
Q:

If the following program (myprog) is run from the command line as 

myprog 1 2 3 

what would be the output?

main(int argc, char *argv[])

{

    int i, j = 0;

    for (i = 0; i < argc ; i++)

           j = j + atoi ( argv[i]);

    printf ("%d", j);

}

A) 123 B) 6
C) Error D) "123"
 
Answer & Explanation Answer: B) 6

Explanation:

When atoi() tries to convert argv[0] to a number it cannot do so (argv[0] being a file name) and hence returns a zero.

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Filed Under: Programming

2 11403
Q:

Which is the simplest file structure?

A) Sequential B) Indexed
C) Random D) None
 
Answer & Explanation Answer: A) Sequential

Explanation:

Sequential is the simplest file structure

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Filed Under: Software Testing

6 11263
Q:

What does microprocessor speed depend on?

Answer

the processing speed depends on DATA BUS WIDTH.

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Subject: Hardware

21 11149
Q:

What is the output of this C code?

        #include <stdio.h>
        void main()
        {
            int y = 3;
            int x = 5 % 2 * 3 / 2;
            printf("Value of x is %d", x);
        }

A) Value of x is 1 B) Value of x is 2
C) Value of x is 3 D) Compile time error
 
Answer & Explanation Answer: A) Value of x is 1

Explanation:
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Filed Under: Programming

2 11087