Interview Questions

If you mark an instance variable as transient, you're telling the JVM to skip (ignore) this variable when you attempt to serialize the object containing it.

Supply the DD cards just as you would for files referred to in the main program.

A savings account is the most basic type of account at a bank or credit union, allowing you to deposit money, keep the funds safe, and withdraw funds as needed. Savings accounts typically pay interest on your deposits, which helps you grow your money, but rates are relatively low on these low-risk accounts.

A checking account is a deposit account held at a financial institution that allows withdrawals and deposits. Also called demand accounts or transactional accounts, checking accounts are very liquid and can be accessed using checks, automated teller machines and electronic debits, among other methods.

Hence, Saving accounts usually offer higher interest rates than checking accounts.

The areas are generally divided into three groups:

* street fashion (mass-manufactured high fashion);

*ready-to-wear (small collections);

* haute couture, where unique cat-walk garments are created mostly without practical considerations.

Don’t try to impress employees with what you are not. If you are an expert in high street fashion – you will be appreciated and find plenty of work.

Bitmap indexes make use of bit arrays (bitmaps) to answer queries by performing bitwise logical operations.

Bitmap indexes are useful in the data warehousing applications.

Bitmap indexes have a significant space and performance advantage over other structures for such data.

Tables that have less number of insert or update operations can be good candidates.

The advantages of Bitmap indexes are:

   - They have a highly compressed structure, making them fast to read.

   - Their structure makes it possible for the system to combine multiple indexes together so that they can      access the underlying table faster.

The Disadvantage of Bitmap indexes is:

  - The overhead on maintaining them is enormous. 

Selling the rights to the amounts owing by debtors to a finance company for an agreed amount (which is less than the figure at which they are recorded in the accounting books because the finance company needs to be paid for providing the service).

TDM is a digital process that can be applied when the data rate capacity of the transmission  medium is greater than the data rate required by the sending and receiving devices.

Trigger allows us to execute a batch of SQL code when an insert, update or delete command is executed against a specific table.

Triggers are special types of stored procedures that are defined to execute automatically in place of or after data modifications. They can be executed automatically on the insert, delete and update operation.