MCQ on Database Management Systems | NIELIT CCC Plus

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Q61. What is a ‘Primary Key’ in a database table?
a) A unique identifier for each record
b) A type of field used for dates
c) A format for displaying text
d) A function for sorting data

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Correct Answer: a) A unique identifier for each record
Explanation: A Primary Key is a unique identifier for each record in a table, ensuring that no two records have the same key.

Q62. What action should you take if you need to search for a specific record in a table?
a) Use the Find function
b) Use the Sort function
c) Use the Design View
d) Use the Print Preview

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Correct Answer: a) Use the Find function
Explanation: The Find function allows you to search for specific records within a table based on search criteria.

Q63. Which of the following is NOT typically a benefit of using forms in a database?
a) Simplifies data entry
b) Automates report generation
c) Provides a user-friendly interface
d) Ensures data validation

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Correct Answer: b) Automates report generation
Explanation: Forms are used for data entry and validation, not for automating report generation, which is typically handled by the Report Wizard.

Q64. How can you ensure that data in a table remains consistent and accurate?
a) Implement validation rules and constraints
b) Regularly update records
c) Use the Find and Replace function
d) Frequently print the table

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Correct Answer: a) Implement validation rules and constraints
Explanation: Validation rules and constraints ensure that the data entered into the table adheres to specified standards and rules.

Q65. Which view would you use to change the appearance of a report’s layout?
a) Layout View
b) Design View
c) Data View
d) Print View

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Correct Answer: a) Layout View
Explanation: Layout View allows you to adjust the appearance and layout of a report before printing.

Q66. What is the function of a ‘Report Wizard’?
a) To guide users in creating and formatting reports
b) To define field types
c) To enter data
d) To run queries

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Correct Answer: a) To guide users in creating and formatting reports
Explanation: The Report Wizard provides a step-by-step guide to creating and formatting reports based on database data.

Q67. To make the design of a form more user-friendly, what should you consider?
a) Adding clear labels and instructions
b) Creating complex queries
c) Designing new tables
d) Printing the form

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Correct Answer: a) Adding clear labels and instructions
Explanation: Adding clear labels and instructions improves the usability of a form, making data entry easier for users.

Q68. What is an ‘Input Mask’ in the context of a database field?
a) A format that restricts the type of data entered into a field
b) A tool for designing forms
c) A method for creating queries
d) A feature for printing reports

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Correct Answer: a) A format that restricts the type of data entered into a field
Explanation: An Input Mask defines a specific format for data entry, ensuring that data is entered consistently.

Q69. When you need to adjust the size of columns in a table, what should you do?
a) Drag the column borders
b) Use the Sort function
c) Open the table in Design View
d) Use the Find function

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Correct Answer: a) Drag the column borders
Explanation: Adjusting the size of columns is typically done by dragging the column borders in the table view.

Q70. What feature would you use to generate a report that summarizes data from a query?
a) Report Wizard
b) Query Wizard
c) Form Wizard
d) Table Design View

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Correct Answer: a) Report Wizard
Explanation: The Report Wizard helps you generate a report summarizing data from a query.

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