Computer Science

Zhang Yiming is the founder of ByteDance, the company that launched TikTok (originally known as Douyin in China) in 2016. The other options are founders of different companies unrelated to TikTok.

Google+ was a social networking platform created by Google as an alternative to Facebook, which is also a social networking site. The other options (Amazon, Flickr, Bing) serve different purposes and are not direct alternatives to Google+.

Mozilla Firefox is a widely used web browser, designed for accessing and navigating the internet. It is not an antivirus software, a URL, or a COO (Chief Operating Officer).

A computer virus is a type of computer program designed to replicate itself and spread to other computers, often causing harm or unwanted effects. It is not a microorganism, electromagnetic wave, or a useful micro component.

UDP (User Datagram Protocol) is a communication protocol used for sending data over the internet but is not a method or technology used to access the web. ISDN, Modem, and DSL are all technologies that provide internet access.

A web browser's primary function is to retrieve, interpret, and display websites to users. It does not open applications, manage files, or edit text directly.

SEO (Search Engine Optimization) refers to the process of optimizing a website to improve its organic (non-paid) search engine rankings, making 'Organic' the correct answer.

PHP originally stood for 'Personal Home Page', but it now stands for 'PHP: Hypertext Preprocessor', which is a recursive acronym. This is the correct and current meaning of PHP in programming.

Transferring files from the internet to your computer is called downloading. Uploading is sending files from your computer to the internet, caching is storing data temporarily, and logging refers to recording events or data.

Mosaic, developed in 1993 by Marc Andreessen and others, was one of the first widely used graphical web browsers, which helped popularize the World Wide Web.

The original question asks which format is widely used for transmitting streaming video data on the internet. The options given are MP3, AVI, WMA, and WAV. Based on authoritative sources, the formats MP3, WMA, and WAV are primarily audio formats and are not used for video streaming. AVI is a video container format but is not widely used for streaming video on the internet. Instead, modern streaming commonly uses formats like MP4 (with H.264/AVC codec), WebM, and others. However, since the question's options do not include these common streaming formats, and AVI is the only video format listed, AVI is the best choice among the given options, though it is not the most accurate representation of widely used streaming formats. Therefore, the correct answer remains B (AVI) given the options, but it should be noted that AVI is not the standard for internet streaming video today. The explanation is updated to clarify that AVI is a video format (unlike the other audio-only options) but is not the most common streaming format currently used on the internet.

Tim Berners-Lee's first web browser was originally named WorldWideWeb but was later renamed Nexus to avoid confusion between the software and the information space (the World Wide Web).

Web pages are primarily written using Hypertext Markup Language (HTML), which structures the content on the web. The other options do not represent languages used for writing web page code.

HTML (HyperText Markup Language) is the primary language used to create and structure content on the web, making it the major language of the web.

In Google Chrome, pressing Ctrl + D opens the dialog to bookmark the current web page, allowing you to save it easily. The other shortcuts perform different functions: Ctrl + H opens history, Ctrl + K moves the cursor to the address bar for search, and Ctrl + U views the page source.

A web browser is the software used to access the World Wide Web (www). It allows users to retrieve, present, and navigate web pages. MS Word, Adobe Reader, and Excel are not designed for web browsing.

The domain ".com" is primarily used by commercial or profit-oriented businesses, whereas ".edu" is for educational institutions, ".org" is typically for non-profit organizations, and ".net" was originally intended for network providers.

Search engines maintain databases (indexes) of web pages on various topics, enabling users to find relevant information quickly. Newsgroups and news servers are related to discussion forums and message distribution, while the World Wide Web is the entire system of interlinked web pages, not a database maintainer.

HTML stands for Hypertext Markup Language, which is the standard language used to create and design webpages by structuring content and hyperlinks.

A search engine uses software called a 'spider' (or crawler) to automatically browse and index documents on the internet, enabling efficient search functionality.

SEO (Search Engine Optimization) is the process of optimizing a website to improve its ranking in search engine results, making it the most effective method among the options listed. PPC (Pay-Per-Click) is a paid advertising method, affiliate marketing involves promoting products for commission, and social media is a platform for engagement, not a direct ranking method.

HTML header tags range from <h1> to <h6>. By default, <h1> is the largest header and <h6> is the smallest. Among the given options (H1, H2, H3, H4), H4 is the smallest header tag by default. The question asks for the smallest header among the options provided, so the correct answer is H4.

HTML (HyperText Markup Language) is the fundamental language used to create and structure web pages, making option C the correct answer.

An IP address uniquely identifies a device on the internet, allowing it to send and receive data. It is not a domain name, web browser, or search engine, which serve different functions.

Telnet is a network protocol used to provide a bidirectional, interactive, text-based communication facility for remote login to another host over a TCP/IP network. It allows a user to open a virtual terminal on a remote system, transmitting keystrokes and receiving display output. It is not a gateway, search engine, or browser protocol. The correct description is that Telnet is a network protocol for remote access via command-line interface.