Technology Questions

Q:

How to open a file?

Answer

<?php
$file = fopen("file.txt","r");
?>

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Subject: PHP

0 2794
Q:

What are the factors that are addressed to integrate data?

Answer

Following are the data integration factors:


- Sub set of the available data should be optimal. 


- Noise/distortion estimation levels because of sensory/processing conditions at the time of data collection.


- Accuracy, spatial and spectral resolution of data.


- Data formats, storage and retrieval mechanisms.


- Efficiency of computation for integrating data sets to reach the goals.

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Q:

Why is code optimization important?

Answer

Optimized code tends to run faster and make more efficient use of the system’s resources. Optimized codes are also less susceptible to errors and take lesser space in memory and in file size.

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Q:

What strategies are available for backing-up an Oracle database?

Answer

The backup strategies that are provided by Oracle are as follows:


- Logical backup using Exports and import.


- Physical file system backup


- RMAN Recovery Manger which is also known as incremental files system backup.

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Subject: Oracle

0 2789
Q:

Explain the difference among the EXEC LINK, EXEC XCTL and Cobol II static call statements in CICS?

Answer

- Use a COBOL II CALL statement to invoke a subprogram. This method is transparent to CICS, which sees only the one load module. 


- EXEC LINK is similar to a call; it invokes a separate CICS program and ends with a RETURN to the invoking program


- EXEC XCTL which transfers control to another CICS program and does not get control 


back. 


COBOL II allows for static calls which are more efficient than the LINK instruction which establishes a new run-unit. 

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0 2785
Q:

Which among the following are the capabilities of the Cursor?

A) It reads every row one by one. B) It can be parameterised and hence are flexible
C) It can be positioned to specific rows D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

All the above listed actions are the functions of cursor

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Q:

How can you send an email message from an ASP.NET Web page?

Answer

You can use the System.Net.Mail.MailMessage and the System.Net.Mail.SmtpMail classes to send an email in your Web pages. In order to send an email through your mail server, you need to create an object of the SmtpClient class and set the server name, port, and credentials.

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Subject: .NET

0 2770
Q:

what is flat aggregation?

Answer

If you create an Aggregate with more than 16 characteristics, then we call that aggregate as FLAT Aggregate. When an aggregate is active then new data is not available for reporting,These aggregates are called Flat Aggregates.

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