Technology Questions

Q:

What are the LMHOSTS files?

Answer

The LMHOSTS file is a static method of resolving NetBIOS names to IP addresses in the same way that the HOSTS file is a static method of resolving domain names into IP addresses. An LMHOSTS file is a text file that maps NetBIOS names to IP addresses; it must be manually configured and updated.

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Q:

What is the difference between the enter key, the PF keys and the PA keys?

Answer

The enter and PF keys transmit data from the screen; the PA keys tell CICS that a terminal action took place, but data is not transmitted.

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Q:

What guidelines should be followed to write a structured COBOL program ?

Answer

Following guidelines to be following while writing Cobol program:


- Use ? EVALUATE ? statement for constructing cases.


- Use scope terminators for nesting.


- Use in-line Perform statement for writing ?do? constructions.


- Use Test Before and Test After in the Perform statement while writing Do-While statements.

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Q:

Which of the following topologies has the highest reliability?

A) Mesh B) Ring
C) Bus D) Star
 
Answer & Explanation Answer: A) Mesh

Explanation:

In the mesh topology, each computer is connected to the other with a separate physical link in a network. It is most reliable topology as the network does not get down in case one of the nodes is failed.

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Q:

What is the use of header() function in php?

Answer

The header() function sends a raw HTTP header to a client. We can use header() function for redirection of pages. It is important to notice that  header()  must be called before any actual output is seen..

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Q:

What is needed to make a multiple choice list with a custom view for each row?

Answer

Multiple choice list can be viewed by making the CheckBox android:id value be “@android:id /text1". That is the ID used by Android for the CheckedTextView in simple_list_item_multiple_choice.

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Q:

In a DB2-CICS program which acts as co-ordinator and which is the participant?

Answer

DB2 acts as the participant and CICS acts as a co-ordinator


 

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Q:

What are encryption functions in PHP?

Answer

CRYPT(), MD5()

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