Technology Questions

Q:

How does thread synchronization occurs inside a monitor?

Answer

A Monitor defines a lock and condition variables for managing concurrent access to shared data. The monitor uses the lock to ensure that only a single thread inactive in the monitor code at any time.


A monitor allows only one thread to lock an object at once.

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Subject: Java

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Q:

What can javascript programs do?

Answer

Generation of HTML pages on-the-fly without accessing the Web server. The user can be given control over the browser like User input validation Simple computations can be performed on the client's machine The user's browser, OS, screen size, etc. can be detected Date and Time Handling

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Subject: Web Technology

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Q:

What command-line tool would help you discover for which port numbers your computer is listening?

Answer

netstat -n  (on Dos prompt)

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Q:

What is Kano Analysis?

Answer

Kano analysis is a systems analysis tool used to identify its impact on customer’s satisfaction based on 3 key areas: unexpected delighters, performance attributes and must have attributes.

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Q:

What is difference between QA, QC and Software Testing?

Answer

Quality Assurance (QA): QA refers to the planned and systematic way of monitoring the quality of process which is followed to produce a quality product. QA tracks the outcomes and adjusts the process to meet the expectation.


Quality Control (QC): Concern with the quality of the product. QC finds the defects and suggests improvements. The process set by QA is implemented by QC. The QC is the responsibility of the tester.


Software Testing: is the process of ensuring that product which is developed by the developer meets the user requirement. The motive to perform testing is to find the bugs and make sure that they get fixed.

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Subject: QA Testing

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Q:

What is the way in which the Asynchronous Transfer Mode works?

Answer

The Asynchronous Transfer Mode or ATM is a connection technology that works by transmitting data into organized 53 bytes (small) packages through a physical environment with a high efficiency. Packing data into small cells reduces transportation delay so the speeds reached by this technology are very high; it can reach even 10 Gb per second.

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Q:

What is WDM?

Answer

WDM is conceptually the same as FDM, except that the multiplexing and demultiplexing  involve light signals transmitted through fiber optics channel.

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Q:

When do you use UPDATE_STATISTICS command?

Answer

This command is used when a large processing of data has occurred. If any large amount of deletions, any modifications, or Bulk Copy into the tables has occurred, it has to update the indexes to take these changes into account. UPDATE_STATISTICS updates the indexes on these tables accordingly.


 

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Subject: SQL

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