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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:

What is the cause of thrashing? How does the system detect thrashing? Once it detects thrashing, what can the system do to eliminate this problem?

Answer

Thrashing is caused by under allocation of the minimum number of pages required by a process, forcing it to continuously page fault. The system can detect thrashing by evaluating the level of CPU utilization as compared to the level of multiprogramming. It can be eliminated by reducing the level of multiprogramming.


 


What_is_the_cause_of_thrashing_How_does_the_system_detect_thrashing_Once_it_detects_thrashing,_what_can_the_system_do_to_eliminate_this_problem1557490890.jpg image

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Subject: Operating Systems

65 38419
Q:

What will be output of following c code?

#include <stdio.h>
int main()

{
    int x=123;
    int i={
         printf("c" "++")
    };
    for(x=0;x<=i;x++){
         printf("%x ",x);
    }
    return 0;

}

Answer

Output: c++0 1 2 3

Explanation: First printf function will print: c++ and return 3 to variable i.For loop will execute three time and printf function will print 0, 1, 2 respectively.

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Subject: Programming

59 40089
Q:

 ON UPDATE CASCADE ensures which of the following?

A) Normalization B) Data Integrity
C) Materialized Views D) All of the above.
 
Answer & Explanation Answer: B) Data Integrity

Explanation:
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Filed Under: Database

53 26123
Q:

Which of the following is not a valid escape code?

A) " B) \
C) ' D) =
 
Answer & Explanation Answer: D) =

Explanation:

The valid escape codes in programming languages are ', ", \, n, or t are the valid escape codes. 

 

For example, the sequence \n usually represents a newline, while the escape sequence \\ represents a backslash, \t usually represents a newtab.

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Filed Under: Programming
Job Role: Analyst , Database Administration , IT Trainer

36 17473
Q:

Explain Belady's Anomaly?

Answer

Also called FIFO anomaly. Usually, on increasing the number of frames allocated to a process virtual memory, the process execution is faster, because fewer page faults occur. Sometimes, the reverse happens, i.e., the execution time increases even when more frames are allocated to the process. This is Belady's Anomaly. This is true for certain page reference patterns.

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Subject: Operating Systems

35 20753
Q:

 A DBMS that combines a DBMS and an application generator is ________ .

A) Microsoft's SQL Server B) Microsoft's Access
C) IBM's DB2 D) Oracle Corporation's Oracle
 
Answer & Explanation Answer: B) Microsoft's Access

Explanation:
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Filed Under: Database

31 21638
Q:

 A goal of data mining includes which of the following?

A) To explain some observed event or condition B) To analyze data for expected relationships
C) To confirm that data exists D) To create a new data warehouse
 
Answer & Explanation Answer: A) To explain some observed event or condition

Explanation:
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Filed Under: Database

26 18779
Q:

________ is an open source DBMS product that runs on UNIX, Linux and Windows.

A) MySQL B) JSP/SQL
C) JDBC/SQL D) Sun ACCESS
 
Answer & Explanation Answer: A) MySQL

Explanation:
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Filed Under: Database

25 16415