Technical Questions

Q:

main()

{

char *p; p = "Hello";

printf ("%cn", *&*p);

}

A) H B) Hello
C) Compilation error D) H E L L O
 
Answer & Explanation Answer: A) H

Explanation:

* is a dereference operator & is a reference operator. They can be applied any number of times provided it is meaningful. Here p points to the first character in the string "Hello". *p dereferences it and so its value is H. Again & references it to an address and * dereferences it to the value H

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Filed Under: Programming
Job Role: Software Architect

26 50587
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

26 17825
Q:

What are the disadvantages of context switching?

Answer

Time taken for switching from one process to other is pure over head. Because the system does no useful work while switching. So one of the solutions is to go for threading when ever possible.

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24 12505
Q:

Physical or logical arrangement of network is

A) Topology B) Routing
C) Both A & B D) Networking
 
Answer & Explanation Answer: A) Topology

Explanation:

The logical arrangement of the nodes of different networks to communicate is called as topology.

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23 18357
Q:

What is page cannibalizing?

Answer

Page swapping or page replacements are called page cannibalizing.

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22 14643
Q:

What does microprocessor speed depend on?

Answer

the processing speed depends on DATA BUS WIDTH.

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Subject: Hardware

22 12438
Q:

List out some reasons for process termination.

Answer

- Normal completion


- Time limit exceeded


- Memory unavailable


- Bounds violation


- Protection error


- Arithmetic error


- Time overrun


- I/O failure


- Invalid instruction


- Privileged instruction


- Data misuse


- Operator or OS intervention


- Parent termination.

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22 17336
Q:

In 8085 name the 16 bit registers?

Answer

Stack pointer and Program counter all have 16 bits.

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Subject: Hardware

20 9176