Interview Questions

Q:

Explain how to start and stop the Oracle HTTP Server.

Answer

Oracle HTTP Server is managed by OPMN which stands for Oracle Process Manager and Notification Server. With the use of opmnctl utility we can start, stop and restart Oracle HTTP Server. If we don’t use this utility the configuration management infrastructure cannot detect or communicate with the Oracle HTTP Server processes, and problems may occur.


The startproc command for the case of Windows is: ORACLE_HOME\opmn\bin> opmnctl [verbose] startproc ias-component=HTTP_Server.


To stop Oracle HTTP Server, use the stopproc command: Windows: ORACLE_HOME\opmn\bin> opmnctl [verbose] stopproc ias-component=HTTP_Server.

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Subject: Oracle

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Q:

How can we encrypt the username and password using PHP?

Answer

User names and passwords in PHP can be encrypted using md5 function.


MD5 function calculates the md5 hash of a string. It is basically used for encryption. It is also used for digital signature applications, where a large file must be "compressed" in a secure manner.


Example:


Md5($str);


 


Crypt() function can also be used to encrypt a string,. It used MD5, DES or blow fish algorithms for encryption.


Syntax:


Crypt(str, salt)


Salt is an optional parameter used to increase the number of characters encoded, to make the encoding more secure

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Subject: PHP

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Q:

Define Virtual folder.?

Answer

It is the folder that contains web applications. The folder that has been published as virtual folder by IIS can only contain web applications

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Subject: .NET
Job Role: Software Architect

0 2278
Q:

Managing retailing, wholesaling and market logistics :

What is logistics management?

Answer

Logistics management is the part of supply chain management that plans, implements, and controls the efficient, effective, forward, and reverse flow and storage of goods, services, and related information between the point of origin and the point of consumption in order to meet customer's requirements.


 


 

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Q:

Difference between Java Beans & Servlets?

Answer

java bean is a reusable component, where as the servlet is the java program which extends the server capability. 

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Subject: Java

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Q:

What is the difference between view and materialized view?

Answer

View:


- Tail raid data representation is provided by a view to access data from its table.


- It has logical structure can not occupy space.


- Changes get affected in corresponding tables.


 


Materialized view


- Pre calculated data persists in materialized view.


- It has physical data space occupation.


- Changes will not get affected in corresponding tables.

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Q:

what is flat aggregation?

Answer

If you create an Aggregate with more than 16 characteristics, then we call that aggregate as FLAT Aggregate. When an aggregate is active then new data is not available for reporting,These aggregates are called Flat Aggregates.

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Q:

Is Java a pure object oriented language?

Answer

Java uses primitive data types and hence is not a pure object oriented language.

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Subject: Java

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