Interview Questions

Q:

How does Microsoft classify security threats to its software?

Answer

Microsoft classifies such threats into 4 indicators, which are low, moderate, important, and critical. Such indicators are available as reference under the Microsoft bulletin.

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Q:

What is Shallow and deep cloning in Java?

Answer

Cloning refers to creating duplicate copies of objects in java.


Shallow Cloning: Shallow cloning is a bitwise copy of an object. New object is created which is an exact copy that of the original one. In case any objects are referring the fields of these objects, just the references are copied.


Deep Cloning: In deep cloning, complete duplicate copy of the original copy is created. Deep cloning creates not only the primitive values of the original objects but also copies all its sub objects as well.


Clonable interface is used to perform cloning in java.

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Subject: Java

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Q:

A table is classified as a parent table and you want to drop and re-create it. How would you do this without affecting the children tables?

Answer

Disable the foreign key constraint to the parent, drop the table, re-create the table, enable the foreign key constraint.

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Q:

What do you mean by a tablespace?

Answer

- These are the Logical Storage Units into which a database is divided.
- It is used to group together the related logical structures.

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Subject: Oracle

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Q:

Which package is imported by default?

Answer java.lang package is imported by default even without a package declaration.
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Subject: Java

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Q:

What is a synonym? What are its various types?

Answer

A synonym can be called as an alias for a table, view, sequence or program unit. It is basically of two types:
- Private - Only the owner can access it.
- Public - Can be accessed by any database user.

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Subject: Oracle

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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 usages of the Command object in ADO.NET?

Answer

The following are the usages of the Command object in AD0.NET:

The Command object in AD0.NET executes a command against the database and retrieves a DataReader or DataSet object.

  =>  It also executes the INSERT, UPDATE, or DELETE command against the database.
  =>  All the command objects are derived from the DbCommand class.
  =>  The command object is represented by two classes: SqlCommand and OleDbCommand.
  =>  The Command object provides three methods to execute commands on the database:
  =>  The ExecuteNonQuery() method executes the commands and does not return any value.
  =>  The ExecuteScalar() method returns a single value from a database query.
  =>  The ExecuteReader() method returns a result set by using the DataReader object.

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Subject: .NET

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