Explanation

• Data refers to a collection of raw facts and figures.
• Data can include numbers, words, symbols, or observations.
• When data is processed and organized, it becomes information.
• Example: 85, 90, 76 are raw data; their calculated average is information.

Last verified on 03-09-2026

Explanation

• Hashing is a one-way process that converts data into a fixed-length hash value.
• Encryption converts data into ciphertext that can be reversed (decrypted) using a key.
• Hashing is commonly used for password verification and data integrity.
• Encryption is used to protect confidential information during storage or transmission.

Last verified on 02-09-2026

Explanation

• The Network Layer (Layer 3) is responsible for logical addressing and routing.
• It uses IP addresses to identify devices across different networks.
• It determines the best path for packets from source to destination.
• Routers primarily operate at this layer.

Last verified on 02-09-2026

Explanation

Explanation

• An IP address (like 192.168.1.1) consists of four numbers, each ranging from 0 to 255.
• Each of these numbers is called an octet because it contains 8 bits.

Last verified on 02-09-2026

Explanation

• IPv4 (Internet Protocol version 4) uses a 32-bit address system.
• It allows about 4.3 billion unique IP addresses.
• It is written in dotted decimal format (e.g., 192.168.1.1).

Additional information:

• IPv6 length → 128 bits

Last verified on 26-05-2026

Explanation

• UPS (Uninterruptible Power Supply) provides backup power to a computer during a power failure.
• It helps prevent the loss of unsaved data by keeping the computer running temporarily.
• It can also protect equipment from certain power fluctuations.

Last verified on 01-09-2026

Explanation

• (x + y) = 5 + 3 is not a valid assignment in Python.
• The program raises a SyntaxError before execution.

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Explanation

• A password containing letters, numbers, and special characters is stronger because it increases the number of possible combinations, making it much harder to guess or crack.
• Using different character types greatly increases password complexity.
• Strong passwords are more resistant to brute-force and dictionary attacks.
• Longer and more complex passwords provide better security.
• Password strength is based on length and randomness.

Last verified on 01-08-2026

Explanation

The correct data processing sequence is Input → Processing → Output → Storage.

• Input is the stage where raw data is entered into the computer.
• Processing converts raw data into meaningful information.
• Output presents the processed information to the user.
• Storage saves the data or information for future use.

Last verified on 01-08-2026