Interview Questions

Q:

What is classloader?

Answer

The classloader is a subsystem of JVM that is used to load classes and interfaces.There are many types of classloaders e.g. Bootstrap classloader, Extension classloader, System classloader, Plugin classloader etc.

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Subject: Java

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Q:

What is meant by index cardinality?

Answer

The number of distinct values for a column is called index cardinality. DB2's RUNSTATS utility analyzes column value redundancy to determine whether to use a tablespace or index scan to search for data.

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Q:

Explain the changing file permission and ownership using PHP's chmod() function.

Answer

Chmod() is used for changing permissions on a file.


Syntax:


Chmod(file, mode)


Mode here specifies the permissions as follows:


The first number is always zero


The second number specifies permissions for the owner


The third number specifies permissions for the owner's user group


The fourth number specifies permissions for everybody else


Possible values (to set multiple permissions, add up the following numbers)


1 = execute permissions


2 = write permissions


4 = read permissions


Example:


// everything for owner, read for owner's group


chmod("test.txt",0740);

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Subject: PHP

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Q:

Why interface data is final?

Answer

bcoz interface does not contains any initializers and constructors to initialize its data members.

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Subject: Java

0 2236
Q:

What is COPY PENDING status?

Answer

- A status occurs when image copy on a table needs to be taken


- The table is available only for queries and can not be updated


- COPY PENDING status can be removed by taking away the image copy or by using REPAIR utility

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Q:

What is the Advantage of AngularJS?

Answer

These are the advantages of AngularJS:



  • AngularJS provides capability to form Single Page Application in a very clean and maintainable method.

  • AngularJS provides data binding capability to HTML therefore giving user a rich and responsive experience.

  • AngularJS code is unit testable.

  • AngularJS uses dependency injection and build use of separation of concerns.

  • AngularJS provides reusable components.

  • AngularJS helps developer to writes less code and gets more functionality.

  • AngularJS, views are pure HTML pages, and controllers written in JavaScript do the business process.

  • AngularJS applications will run on all major browsers and good phones together with android and iOS based mostly phones/tablets.

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Subject: Web Technology

0 2233
Q:

The chart of accounts is designed to

A) alphabetized the accounts to make reading easier for its financial statement users B) summarize the transactions and determine their ending balances
C) meet the information needs of a company and other financial statement users D) analyse the accounts and organize them in order of dollar amount to simplify the accounting information for users
 
Answer & Explanation Answer: C) meet the information needs of a company and other financial statement users

Explanation:

The chart of accounts is designed to to meet the information needs of a company and other financial statement users.

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Filed Under: Accounts Payable
Exam Prep: CAT , Bank Exams
Job Role: Bank PO , Bank Clerk , Analyst

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Q:

What are the reasons for slow loading of the web page?

Answer

- The web pages that are loading slowly might be using heavy scripts or might be getting loaded on an overloaded server. 


- If the content like flash is used then the web page performs really slowly in comparison to the normal pages that get created. 


- If the caching is inactive on the web browsers and the same web page is getting loaded again and again then the performance get degraded.


- Web pages load slowly due to the content on that page as if it is text it loads faster then the site that is made up of large photographs. 


- It takes longer time for a picture to get rendered and the transmission time also remains higher then the text.

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Subject: Web Technology

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