Technology Questions

Q:

What is a PL/SQL Record data type?

Answer

A record data type represents a data type for that row in a database table. It lets u define your own records and not your own fields.

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Subject: Oracle

0 1941
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

0 1941
Q:

In a class if private data member is declared then how to get value of that data member?

Answer

By using method.


The method used to get the data is called getter method.

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Subject: Java

0 1941
Q:

What is the security mechanism used in java?

Answer

Java uses sand box security model.

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Subject: Java

0 1940
Q:

What is the use of Infinite file in Web security?

Answer

- Infinite file consists of random bits of code that is stored in /dev/random file used to generate the cryptographic keys. 


- Infinite file consists of the source of infinite data that can be used to provide the response in easy manner. 


- Web server consists of the file that is received by the server in this format GET //dev/random HTTP/1.0. 


- Web server provides the continuous data that can be read from /dev/random/ before the web server can run out of the memory. 


- The server crashes out in case it runs out of the memory due to the infinite file type and it is very essential in case of the web security.

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Subject: Web Technology

0 1938
Q:

Differentiate linked list from arrays.

Answer

Arrays can store data in a fix allotted space. The use of linked list allows more flexibility because space is dynamically allocated as needed.

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0 1937
Q:

How does traffic measured in hosting platform?

Answer

- The traffic can be measured using the size of the files that are transferred from one place to another (server-client). 


- It can also be measured by the size of the file that is being requested by the client from the server. 


- The number of visitors arriving on the website also involve in the measurement of the traffic using the web hosting platform. 


- The advertisements of the sites take more bandwidth to allow more number of users to be on the website. 


- More number of users provides higher traffic on the website thus it requires more bandwidth on the web hosting sites.

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Subject: Web Technology

0 1936
Q:

What is the purpose of pseudo-elements?

Answer

Pseudo elements allow the use of the part of element and not the element itself. They are applied to block level element, which is used for the complete block for which the CSS is being written. This allow the subpart of an element to be styled like paragraphs and headings. For example:


selector:pseudo-element {property:value;}


p: first-line {text-transform: lowercase;}


It adds the style to the first line of the code in the paragraph.

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Subject: Web Technology

0 1934