Technology Questions

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:

How E-commerce works?

Answer

=> When a consumer wants to buy a certain product, he go to the website and selects the product he wants to buy. 


=> Once the product is selected, the consumer transaction is moved to the online transaction server where he places an order. 


=> The informations is exchanged over a secure channel through a private gateway to a processing network. 


=> The networked banks accept or reject the transaction.


 All this happens in just a matter of seconds. E-commerce is a very secure due to the SSL (Secure Socket Layer) technology.

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Subject: Web Technology

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Q:

Explain how to configure Trace switches in the application’s .config file.?

Answer

switches are configured using the .config file


<system.diagnostics>


<switches>


<add name="MyTraceSwitch" value="1" />


<add name="TraceSwitch2" value="1" />


</switches>


</system.diagnostics>


both are on.

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Subject: .NET

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Q:

What are the 3main tasks of JVM?

Answer

The JVM performs three main tasks:


• Loads code


• Verifies code


• Executes code

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Subject: Java

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Q:

Which of the following statements is true concerning subqueries?

A) Does not start with the word SELECT. B) Involves the use of an inner and outer query.
C) Cannot return the same result as a query that is not a subquery. D) All of the above
 
Answer & Explanation Answer: B) Involves the use of an inner and outer query.

Explanation:
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Filed Under: SQL
Job Role: Analyst , Database Administration , IT Trainer

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Q:

What are meta tags used for?

Answer

-To store information usually relevant to browsers and search engines.


-To only store information usually relevant to browsers


-To only store information about search engines.


-To store information about external links

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Q:

what is non-static member class?

Answer

Non-static member class is a class defined inside outer class with out static modifier.


EX:


class A { // top level class or outer class


    ......


    class B { //non-static member class


    }


    .....


}

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Subject: Java

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Q:

What is meant by a dedicated computer?

A) Which is assigned one and only one task B) Which is meant for application software
C) Which is used by one person only D) Which uses one kind of software
 
Answer & Explanation Answer: A) Which is assigned one and only one task

Explanation:

What_is_meant_by_a_dedicated_computer1560341069.jpg image

It is a single computer in a network reserved for serving the needs of the network.

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