Internet and Networking Fundamentals

CALTIGER.COM was a web portal/website, not an Internet Service Provider (ISP). BSNL, VSNL, and GLIDE were/are ISPs that provide internet connectivity services to users.

JAVA is a programming language. MS-OFFICE is application software, ORACLE is a database management system, and FLASH is animation software - none are programming languages themselves.

LCD (Liquid Crystal Display) is an output device that displays visual information. A digitized camera, spaceball (input device), and joystick are all input devices that send data to the computer.

Hypertext documents are linked through pointers (hyperlinks), which are references that connect one document to another. DNS is for domain name resolution, TELNET is for remote login, and Homepages are the main pages of websites.

MIME (Multipurpose Internet Mail Extensions) allows various data types including audio, images, and non-ASCII text to be sent via email (SMTP). It extends the original SMTP protocol which only handled ASCII text.

Flash (now Adobe Animate) is specifically designed for creating animations and interactive content. Photoshop and PaintShop Pro are primarily image editing tools, while PageMaker is for desktop publishing layout.

Dennis Ritchie created the C programming language at Bell Labs in the 1970s. C became one of the most influential languages, serving as the foundation for many modern languages like C++, Java, and Python.

Java encompasses multiple components: the programming language syntax, the Java Virtual Machine (JVM) runtime environment that executes Java bytecode, and the extensive Java Class Library frameworks that provide pre-built functionality.

Both Internet Explorer and Netscape Navigator are web browsers. The question uses confusing negative phrasing - option D 'none' is meant to indicate that none of the options are 'not browsers,' meaning both are browsers.

Bridges connect network segments at the data link layer. Routers connect different networks using IP addresses. Gateways connect networks with different protocols or architectures. All three can be used to connect networks.

Cookies are simple text files with limited functionality - they store small pieces of data and cannot execute file system operations like writing, deleting, or formatting files. This design prevents malicious websites from causing damage through cookie mechanisms.

TELNET is a network protocol that uses port 23 by default for remote terminal connections. It allows users to log into remote computers and execute commands as if they were directly connected to the machine.

IRC (Internet Relay Chat) is specifically designed for real-time group communication in chat rooms. It enables multiple users to join channels and exchange text messages instantly, making it the foundational protocol for online chat applications.

PPP (Point-to-Point Protocol) became the standard for dial-up connections because it offers better error correction, authentication, and data compression compared to older protocols like SLIP. While TCP/IP runs over PPP, PPP itself handles the dial-up connection establishment.

Search engines use automated software robots called spiders or crawlers to index web pages, whereas directories are typically organized and maintained by human editors without relying on web crawlers.

A computer virus is a type of malware that, when executed, replicates by modifying other computer programs and inserting its own code. This distinguishes it from other malware types like Trojans (which disguise themselves but don't replicate) and worms (which are standalone and spread through networks).

Bandwidth can be measured in different units depending on context. Digital bandwidth (data transfer capacity) is measured in bits per second, while analog bandwidth (frequency range) is measured in Hertz (cycles per second). The question tests understanding that both measurement units exist.

An extranet combines public internet accessibility with private intranet security, allowing controlled external access to internal resources for partners, customers, or suppliers while maintaining confidentiality of sensitive information.

FTP (File Transfer Protocol) is a two-way protocol that allows users to both upload files from their local system to a remote server AND download files from the server to their local system, making option C the correct answer.

Major ISPs indeed expand beyond basic connectivity to offer value-added services like cloud hosting, security solutions, managed IT services, and integrated technology packages to increase revenue and customer retention in competitive markets.

VPN stands for Virtual Private Network, which creates a secure, encrypted connection over a public network (like the internet) to allow remote users to access private resources as if they were directly connected to the private network.

MIME (Multipurpose Internet Mail Extensions) is a protocol that extends email to support non-text attachments like images, audio, and video, allowing diverse file types to be sent over SMTP-based email systems.

Usenet is indeed a global discussion system where users post and read messages in organized newsgroups covering thousands of topics, functioning as an electronic bulletin board that predates the modern web forum.

DNS (Domain Name System) is the hierarchical distributed naming system that translates human-readable domain names like 'example.com' into machine-readable IP addresses like '192.0.2.1', acting as the internet's phonebook.