ISRO PRL Technical Assistant CS/IT 2025

Detailed Explanation:

Phishing is a social-engineering attack in which an attacker impersonates a trusted person or organization.

The attacker uses deceptive emails, messages, or websites to persuade victims to disclose credentials, financial details, or other sensitive information.

Detailed Explanation:

A universal logic gate can be used by itself to construct any Boolean function.

NAND is universal; NOR is also universal.

Among the listed options, NAND is the universal gate.

Detailed Explanation:

The binary number 0011010₂ has place values 16, 8, 4, 2, and 1 in its active positions.

Its value is 16 + 8 + 2 = 26.

Detailed Explanation:

POP stands for Post Office Protocol.

POP3 is a commonly used version that allows an email client to retrieve messages from a mail server.

Detailed Explanation:

Convert each hexadecimal digit into four binary bits.

Hexadecimal 2 is 0010, and hexadecimal A (decimal 10) is 1010.

Combining the nibbles gives 00101010.