Interview Questions

Q:

Describe the situations in which AJAX should not be used.

Answer

You should not use AJAX if:



             =>  You want the page to show in a search engine, such as Google, because WebCrawler does not execute JavaScript code.

             =>  The browser does not support JavaScript.

             =>  You want to create a secure application.

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Subject: .NET

0 2163
Q:

Explain foreign key constraint.

Answer

A foreign key is a reference to another table. It is used to establish relationships between tables. For example, relationship between employee and professor table. One employee can have multiple professors. The Primary key of employee becomes foreign key of professor.
Example:
create table employee ( id number NOT NULL, professor_id NOT NULL, Name varchar(200) Constraint prim_id Foreign key(id) references professor(professor_id) );

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Subject: Oracle

0 2162
Q:

What is DriverManager ?

Answer

DriverManager is a class in java.sql package. It is the basic service for managing a set of JDBC drivers.

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Subject: Java

0 2162
Q:

A website main page is called

A) start page B) bookmark
C) search page D) browser page
 
Answer & Explanation Answer: A) start page

Explanation:

A website main page is called as start page or home page.

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Filed Under: Application Development
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

1 2160
Q:

What is static member class?

Answer

Static member class is a class defined inside outer class with static modifier.


EX:


Class A {  //top level class or outer class


    .....


    static class B {  //static member class


    }


   .....


}

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Subject: Java

0 2159
Q:

Which of the following best describes term life insurance? 

A) The insured pays a premium for a specified number of years. B) The insured is covered during his or her entire lifetime.
C) The insured pays the premium until his or her death. D) The insured can borrow or collect the cash value of the policy.
 
Answer & Explanation Answer: A) The insured pays a premium for a specified number of years.

Explanation:
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Filed Under: Accounts Receivable
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

0 2158
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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0 2158
Q:

Define PL/SQL. Explain its purpose

Answer

PL/SQL is Procedural Language SQL that is an extension of SQL that results in a more structural language composed of blocks. It is mainly used in writing applications that needs to be structured and has error handling.

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Subject: Oracle

0 2156