Technology Questions

Q:

What is data cleaning? How can we do that?

Answer

Data cleaning is also known as data scrubbing. Data cleaning is a process which ensures the set of data is correct and accurate. Data accuracy and consistency, data integration is checked during data cleaning. Data cleaning can be applied for a set of records or multiple sets of data which need to be merged.


Data cleaning is performed by reading all records in a set and verifying their accuracy. Typos and spelling errors are rectified. Mislabeled data if available is labeled and filed. Incomplete or missing entries are completed. Unrecoverable records are purged, for not to take space and inefficient operations.

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Q:

Application_Start: This event occurs when the first user visits a page of the application.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

whenever user visits a page application Application_start event occurs

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Subject: .NET
Job Role: Software Architect

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Q:

How does IDMS insure data integrity?

Answer

IDMS uses record locks to prevent another run-unit from updating the same record.

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Q:

What is dual-boot system?

Answer

Dual boot system allows you to install and maintain two operating systems on a single PC. The purpose for this is to maintain compatibility between older and newer software. For example, there maybe programs that only work under Windows 98, therefore having a dual boot system between Windows 98 and another version like Windows XP is a good choice.

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Q:

What is copy constructor?

Answer


Copy constructor is a constructor function with the same name as the class and used to make deep copy of objects.

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Subject: C++

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Q:

Which among the following validators validates controls if controls contain data?

A) CompareValidator B) RangeValidator
C) RequiredFieldValidator D) None
 
Answer & Explanation Answer: C) RequiredFieldValidator

Explanation:

RequiredFieldValidator is used to validate the controls if they contain data

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Filed Under: .NET
Job Role: Software Architect

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Q:

What is Analysis service repository?

Answer

Every Analysis server has a repository to store metadata for the objects like cubes, data sources etc. It’s by default stored in a MS Access database which can be also migrated to a SQL Server database.

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Subject: SQL

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Q:

HTML documents are saved in

A) Machine language codes B) ASCII text
C) Special binary format D) None of the above
 
Answer & Explanation Answer: B) ASCII text

Explanation:

Word and WordPad can save documents as ASCII text and HTML, but this approach can lead to problems. NotePad should launch with a new document open.

From the File pull-down menu, Select "Save As," save the file to the Desktop, and name the file using the ".html" extension (e.g., "home.html").

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