📝 Advanced Practice Questions (Security & Full Mock) - Page 4
Showing questions 61 to 80 of high-level competitive standards.
Q61. Which type of malware replicates itself to spread to other computers across a network?
Correct Answer: B) Worm
Explanation: Unlike viruses, computer worms are standalone malware that replicate and spread without human intervention.
Q62. What does HTTPS use for encrypting communication over the computer network?
Correct Answer: A) SSL / TLS protocol
Explanation: HTTPS secures web traffic using Secure Sockets Layer (SSL) or Transport Layer Security (TLS).
Q63. Which gate is known as a universal logic gate because it can implement any Boolean function?
Correct Answer: B) NAND / NOR
Explanation: NAND and NOR gates can be combined to build any logic gate or circuit.
Q64. What is the base of the Hexadecimal number system?
Correct Answer: D) 16
Explanation: Hexadecimal uses 16 symbols ranging from 0-9 and letters A-F.
Q65. Which command in Linux is used to view the contents of a text file?
Correct Answer: B) cat
Explanation: The cat (concatenate) command is commonly used to display file contents in terminal.