RRB Technician Grade I 19 Dec 2024 Shift 1 Paper

Concept:HTTP is the core protocol for web communication, and HTTP 1.1 is the version universally supported by all modern browsers.Explanation:HTTP stands for Hypertext Transfer Protocol.It governs how web browsers and servers exchange hypertext documents and other resources.$\text{HTTP 1.1}$ is a standard protocol version adopted by all major browsers.It supports persistent connections, enabling multiple requests and responses over a single connection.It introduced chunked transfer encoding and improved caching mechanisms over $\text{HTTP 1.0}$.Mozilla Firefox, Google Chrome, and Microsoft Edge all require support for $\text{HTTP 1.1}$.Newer versions like $\text{HTTP 2}$ and $\text{HTTP 3}$ exist, but they are not among the listed options.$\text{HTTP 2}$ adds multiplexing and header compression, while $\text{HTTP 3}$ uses the QUIC protocol.HTTPS is the encrypted version of HTTP using SSL/TLS.The options $\text{HTTP 2.1}$, $\text{HTTP 3.1}$, and $\text{HTTP 1.2}$ are not recognized protocol versions.Hence, $\text{HTTP 1.1}$ is the correct choice.Answer:Option C: $\text{HTTP 1.1}$