Skip to content Home Questions Play Progress Daily Challenge Questions › Computers and Information Technology › Networking and Security Questions QUESTION Consider the following statements about email protocols: 1. The SMTP (Simple Mail Transfer Protocol) is commonly used for sending emails between mail servers. 2.… Open question → QUESTION In a star network, how many lines are required for connecting N nodes to the host node? Open question → QUESTION What is a ‘Firewall’ in the context of network security? Open question → QUESTION Which networking device operates at Layer 2 of the OSI model and forwards data based on MAC addresses? Open question → QUESTION When the sender and receiver of an email are on the same system, we need only ______ user agents. Open question → QUESTION A _________ is a program that can self - replicate and propagate over the network. Open question → QUESTION Which networking protocol is used to assign IP addresses dynamically to devices on a network? Open question → QUESTION Which of the following is an example of multi-factor authentication for PC security? Open question → QUESTION What function does the public key serve in digital signature verification? Open question → QUESTION Which of the following represents the Two - Factor Authentication (2FA)? Open question → QUESTION According to Google’s Gmail Help guidance checked in October 2026, what is the total attachment-size limit for a personal Gmail message? Open question → QUESTION Which kind of computer security requires verifying the genuineness of the individuals or organisations that want to access a system? Open question → QUESTION Symmetric encryption is also known as: Open question → QUESTION Which of the following best describes the primary difference between broadband and dial-up Internet connections? Open question → QUESTION In symmetric encryption, how many keys are used to encrypt and decrypt data? Open question → QUESTION Which Government of India platform leverages Artificial Intelligence to enable digital services and internet access in various Indian languages? Open question → QUESTION Which of the following is a major limitation of symmetric encryption in securing communications? Open question → QUESTION What is the primary purpose of enabling encryption for data in transit across a network? Open question → QUESTION In network and information security, what is the primary objective of a Trojan horse malware? Open question → QUESTION Which of the following protocols provides end-to-end encryption for securing email content from unauthorized access? Open question → QUESTION In the OSI model, which layer performs packet routing between different networks using logical (IP) addressing? Open question → Home Questions Play Progress 