Database & IT Law

JKSSB Sub-Inspector (Telecommunication) · Computer Science & Networking Systems · 18 practice questions with answers and explanations: 3 Easy, 9 Medium, 6 Hard.

Sample questions

Sample Easy question 1

What does a 'primary key' refer to in a database table?

  1. A unique identifier for each record
  2. A password to access the database
  3. A backup copy of data
  4. A type of query
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Answer: A. A primary key uniquely identifies each record in a database table.

Sample Medium question 2

What does 'AI' stand for?

  1. Artificial Intelligence
  2. Automated Interface
  3. Advanced Internet
  4. Applied Informatics
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Answer: A. AI stands for Artificial Intelligence.

Sample Hard question 3

In database design, what does a 'primary key' ensure?

  1. Uniqueness of each record in a table
  2. Faster internet speed
  3. Data encryption
  4. Data compression
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Answer: A. A primary key uniquely identifies each record in a database table.

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