Explanation

• Quick Sort is the fastest in the average case among the given options.
• It has an average time complexity of O(n log n).
• It uses a divide-and-conquer strategy to sort data efficiently.

Last verified on 23-06-2026

Explanation

• Data compression decreases the file size by reducing redundant data.
• It helps in storing and transmitting data more efficiently.
• Compressed files use less storage space.
• It improves file transfer speed over networks.
• Data can usually be restored after decompression.

Last verified on 23-06-2026

Explanation

• Manual data processing is NOT a characteristic of cloud computing.
• Cloud computing works automatically without manual handling of data.
• It provides services like storage, processing, and software over the internet.
• It is based on automation and remote servers.

Last verified on 23-06-2026

Explanation

• A single row(s) in a database table is called a record(s) or tuple(s).
• It represents a complete set of related data about one entity.
• Each record contains multiple fields (columns).
• Records store information about a single entity (e.g., one student).
• It is a basic unit of data storage in databases.

Additional information:

• In a database, columns are called Fields or Attributes.

Last verified on 12-04-2026

Explanation

• Integration Testing is used to combine and test old and new system components together.
• It checks whether different modules or systems work properly when connected.
• This testing focuses on data flow and interaction between systems.
• It is done after unit testing and before system testing.

Last verified on 23-06-2026

Explanation

• The Turing Test checks whether a machine can exhibit human-like intelligence.

Additional information:

• Proposed by: Alan Turing
• Year: 1950
• Field: Artificial Intelligence (AI)
• Purpose: To test machine intelligence
• Method: Human judge interacts via text and identifies machine vs human

Last verified on 23-06-2026

Explanation

• DNS (Domain Name System) is the protocol/service that resolves domain names into IP addresses.
• It converts easy-to-remember website names (e.g., google.com) into numerical IP addresses used by computers.
• Port used: 53
• Protocol type: Application layer protocol
• DNS was introduced in 1983 by Paul Mockapetris.

Last verified on 23-06-2026

Explanation

• Full form: Internet Assigned Numbers Authority (IANA)
• Function: Allocation of IP addresses, domain root zone, protocol numbers
• Parent organization: ICANN
• Regional distribution: Through RIRs (like ARIN, RIPE NCC, APNIC)
• Role: Maintains global internet numbering system

Last verified on 22-06-2026

Explanation

• The Data Bus transfers actual data between CPU and memory.
• It carries information that is being processed or stored.
• It is a two-way communication path in most systems.

Additional information:

• Address Bus: Carries memory location (address)
• Control Bus: Carries control signals (read/write)
• System Bus: Combination of all three buses
• Direction: Mostly bidirectional for data transfer

Last verified on 22-06-2026

Explanation

• A ransomware attack encrypts a victim’s data and demands money (ransom) to restore access.
• It locks files or entire systems until payment is made, usually in cryptocurrency.
• It is a type of malicious cyber attack (malware).
• Even after payment, data recovery is not guaranteed.
• It mainly targets individuals, companies, and government systems.

Last verified on 22-06-2026