Technology Questions

Q:

why protected modifier?

Answer

Outside the package if any other class other than JVM calls the finalize method our class then it is not allowed

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Subject: Java

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Q:

Are objects passed by value or by reference?

Answer Everything is passed by value.
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Subject: PHP

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Q:

What is the advantage of using ADO?

Answer

ADO or Active X Data objects, allows developers to create applications that can interoperate well with other data application services.

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Q:

Client code having direct access to internal data is called

A) Encapsulation B) DataHiding
C) Polymorphism D) DataAbstraction
 
Answer & Explanation Answer: B) DataHiding

Explanation:

Client code must use setters and getters to access internal data in DataHiding

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Filed Under: Java

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Q:

Difference between transparent tables and pooled tables

Answer

Transparent tables: Transparent tables in the dictionary has a one-to-one relation with the table in database. Its structure corresponds to single database field. Table in the database has the same name as in the dictionary. Transparent table holds application data.



Pooled tables: Pooled tables in the dictionary has a many-to-one relation with the table in database. Table in the database has the different name as in the dictionary. Pooled table are stored in table pool at the database level.

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Subject: ABAP

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Q:

What is the difference between XML and HTML?

A) HTML is used for exchanging data, XML is not B) XML is used for exchanging data, HTML is not
C) HTML can have user defined tags, XML cannot D) XML can have user defined tags, HTML cannot
 
Answer & Explanation Answer: B) XML is used for exchanging data, HTML is not

Explanation:
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Filed Under: Web Technology

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Q:

What command would you type in at a command prompt to view the IP address of the remote computer?

Answer

Ping


Netstat

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Q:

What is the difference between a regular bitmap and a nine-patch image?

Answer

In general, a Nine-patch image allows resizing that can be used as background or other image size requirements for the target device. The Nine-patch refers to the way you can resize the image: 4 corners that are unscaled, 4 edges that are scaled in 1 axis, and the middle one that can be scaled into both axes.


 

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