Computer Networks

An RJ45 cable, commonly used for Ethernet networking, contains 4 twisted pairs of wires, totaling 8 wires. This design helps reduce electromagnetic interference and crosstalk.

Client-Server Networks are more scalable and suitable for large organizations because they centralize resources and management, allowing for better control, security, and support for many clients. Peer-to-Peer and other listed networks are less scalable for large-scale use.

A protocol is a set of rules or procedures that govern data communication between devices, ensuring proper data transfer and interpretation. Therefore, 'Protocol' is the correct answer.

BSNL is a telecommunications company and not a technical term used in intranet networking, whereas IP, HTTP, and TCP are standard protocols and terms commonly used within intranets.

Vint Cerf and Bob Kahn are credited with developing TCP/IP, the fundamental protocols that underpin internet communication. The other options list notable figures in computing but are not associated with TCP/IP's creation.

FTP (File Transfer Protocol) is specifically designed for transferring files between computers over a network, making 'File transfer' the correct purpose. Other options like web browsing, caching, or refreshing are unrelated to FTP's main function.

SMTP (Simple Mail Transfer Protocol) is the standard protocol used to send emails between hosts on a network. FTP is for file transfer, TELNET is for remote login, and 'None of these' is incorrect.

An IP address consists of four numbers called octets, each representing 8 bits. The term 'octet' is standard in networking to describe these 8-bit segments.

TCP stands for Transmission Control Protocol, which is a fundamental protocol in the Internet protocol suite responsible for reliable data transmission.

An IP address consists of four numbers separated by dots, each called an octet because it represents 8 bits. Therefore, the four numbers in an IP address are called octets.