Computer Knowledge

Database Management Systems

5,543 Questions

Database Management Systems (DBMS) form the core framework for data storage, retrieval, and security in modern software applications. Concepts such as the E-R model, backup planning, SQL integration, and big data architecture are essential for computer knowledge sections. This hub offers a comprehensive set of practice questions to master DBMS fundamentals and advanced database operations.

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Database Management Systems Questions

Multiple choice economics planning and collecting data different types of data primary and secondary data collecting data

Data is_______________.

  1. Collectio of information about a person

  2. Collection of information regarding the comparative things

  3. Both A & B

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Data is collection of information regarding the comparative things. Data can consist both qualitative as well as quantitative information. It is usually formatted in a specific way.

Multiple choice economics planning and collecting data different types of data primary and secondary data collecting data

When data is classified on the basis of attribute it is termed as________.

  1. Geographical

  2. Qualitative

  3. Chronological

  4. Both a&c
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When data is classified on the basis of attribute it is termed as qualitative data. Qualitative data highlights the quality of the information. Attribute gets the special emphasis in analysing the data.

Multiple choice economics planning and collecting data different types of data primary and secondary data collecting data

Secondary data should be _______________.

  1. accurate

  2. reliable

  3. suitable

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Secondary data is the second-hand information since the secondary  data is not collected or gathered by the user. It should be accurate, reliable and suitable. For example, government censs report is a secondary data.

Multiple choice economics planning and collecting data different types of data primary and secondary data collecting data

Data collected by research institutions is ________________.

  1. primary data

  2. secondary unpublished data

  3. secondary published data

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Primary data is also known as raw data. It is the first-hand information. Data collected or gathered by research institutions is primary data. Primary data is collected only for a specificc purpose.

Multiple choice economics planning and collecting data different types of data primary and secondary data collecting data

Primary data is _______________.

  1. first hand information

  2. already published data

  3. original in nature

  4. (A) and (C)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Primary data is the data, which is collected for the first time by investigators. It s also known as raw data. It is the first-hand information. It refers to the collection of data for a specific purpose. It is original in nature since it is collected directly by the user.

Multiple choice economics planning and collecting data different types of data primary and secondary data collecting data

The sources from where primary data can be collected are known as _______________.

  1. outside sources

  2. secondary sources

  3. primary sources

  4. inside sources
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Primary data is the data, which is collected for the first time by investigators. It s also known as raw data. It is the first-hand information. It refers to the collection of data for a specific purpose. The sources from where primary data can be collected are known as primary sources.

Multiple choice economics planning and collecting data different types of data primary and secondary data collecting data

'Collection of data' refers to systematic recording of results -
A. By counting
B. By enumeration
Select the correct answer from the options given below -

  1. B only

  2. A only

  3. Either A or B

  4. Neither A nor B
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

'Collection of data' refers to systematic recording of results either by counting or by enumeration. Collecting data by enumeration is much more expensive than collecting data by counting.

Multiple choice economics planning and collecting data different types of data primary and secondary data collecting data

_________refers to the data which is already collected and published by other authorities.

  1. Primary Data

  2. Unprocessed data

  3. Secondary Data

  4. None of above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Secondary data is the second-hand information as it is not collected by the user. Thus, secondary data refers to the data which is already collected and published by other authorities. For example, government census report is a secondary data.

Multiple choice economics planning and collecting data different types of data primary and secondary data collecting data

Secondary data is __________________.

  1. first hand information

  2. already published data

  3. original in nature

  4. (A) and (C)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Secondary data is the second-hand information since the secondary  data is not collected or gathered by the user. It should be accurate, reliable and suitable. For example, government census report is a secondary data. Thus, secondary data that we originally collected at an earlier time by a different person for a different purpose. It is already published data.

Multiple choice business organisation and correspondence postal services 4 - rapid communication and other facilities communication services postal services and warehouses communication and transport services importance, types and documentation in warehousing meaning of warehousing and warehousing warehousing

You need to provide guidance to your work team on how to use a new database that will become operational next week.

Which of the following would be the most suitable email type to convey the instructions?

  1. Authorization email

  2. Announcement email

  3. Instruction email

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

You need to provide guidance to your work team on how to use a new database that will become operational next week.

In this situation instruction email  would be the most suitable email type to convey the instructions. Any instruction or order which needs to  get delivered to a mass of people or a team, then instruction email should be used.