Technical Interview Questions and Answers

Q:

What is the diff between RDO and ADO?

Answer

RDO is Hierarchy model where as ADO is Object model. ADO can access data from both flat files as well as the data bases. I.e., It is encapsulation of DAO, RDO , OLE that is why we call it as OLE-DB Technology.

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Subject: Microsoft Interview

7 3134

Q:

Exlpain STL.

Answer

STL stands for Standard Template Library. It is a library of container templates approved by the ANSI committee for inclusion in the standard C++ specification.

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Subject: C++

0 3133

Q:

What is locking ? what are the advantages of locking?

Answer

Locking is a mechanism to ensure data integrity while allowing maximum concurrent access to data. It is used to implement concurrency control when multiple users access table to manipulate its data at the same time.

Advantages :

- Avoids deadlock conditions

- Avoids clashes in capturing the resources

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Subject: Oracle

0 3129

Q:

In HTML document the tags are

A) hidden keywords	B) used to display the content
C) Both A & B	D) None of the above

Answer & Explanation Answer: C) Both A & B

Explanation:

Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications.

HTML tags are the hidden keywords within a web page that define how your web browser must format and display the content. Most tags must have two parts, an opening and a closing part. For example, <html> is the opening tag and </html> is the closing tag.

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Filed Under: Web Technology
Job Role: IT Trainer

8 3129

Q:

Name and explain the type of locks?

Answer

There are three types of lock, namely:

Shared – This type of lock permits two or more programs to read from the locked space but does not allow them to change it.

Update – This lock is more lenient. It permits the program to read and change the locked space.

Exclusive – This lock restricts all users from accessing the locked space.

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Subject: Mainframe Interview

0 3127

Q:

What is WHEN-Database-record trigger?

Answer

Fires when oracle forms first marks a record as an insert or an update. The trigger fires as soon as oracle forms determines through validation that the record should be processed by the next post or commit as an insert or update. Generally occurs only when the operators modifies the first item in the record, and after the operator attempts to navigate out of the item.

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Subject: Database Administration

2 3125

Q:

What is an OLTP system and OLAP system?

Answer

OLTP stands for OnLine Transaction Processing. Applications that supports and manges transactions which involve high volumes of data are supported by OLTP system. OLTP is based on client-server architecture and supports transactions across networks.

OLAP stands for OnLine Analytical Processing. Business data analysis and complex calculations on low volumes of data are performed by OLAP. An insight of data coming from various resources can be gained by a user with the support of OLAP.

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Subject: Data Warehousing

0 3124

Q:

What is a AngularJS?

Answer

AngularJS is a framework to build the large scale and high performance web application while keeping them as easy-to-maintain. These are the features of AngularJS framework.

AngularJS is a powerful Script based on JavaScript development framework to Implement RICH Internet Application (RIA).

AngularJS is a developers options to write client side application (using JavaScript) in a clean MVC (Model View Controller) side.

Application are written in AngularJS is also cross-browser compliant. AngularJS automatically handles JavaScript code suitable for any browser.

AngularJS is an open source, completely free, and used by large number of developers around the world. It is licensed under the Apache License version 2.0.

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