Online World

SQL (Structured Query Language) is the standard language used to communicate with and manage relational databases.

Bluetooth technology operates in the 2.4 GHz ISM band, which falls within the microwave spectrum.

Twisting the wires in UTP (Unshielded Twisted Pair) cables helps to cancel out electromagnetic interference (crosstalk) from external sources and adjacent pairs.

The three standard transmission modes are Simplex, Half-duplex, and Full-duplex. Half-Simplex is not a recognized technical term for a transmission mode.

A data packet typically contains a header (with source and destination addresses), a payload (the actual data), and a trailer (with error control bits). Route instructions are determined by routers, not stored inside the packet itself.

Search engines use software programs called spiders, crawlers, or bots to index the web. Bugs are generally errors in software, not the software itself.

HTML stands for HyperText Markup Language. It is the standard language used to create and structure content on the web.

A web browser is an application used to access and display web pages. Web servers are responsible for storing web pages.

The Internet and modern networking rely on packet switching, where data is broken into small packets that travel independently across the network.

RFID (Radio Frequency Identification) chips are commonly used in ubiquitous computing for tracking and identifying objects or people.

Cloud computing involves storing and accessing data over the internet instead of on a local hard drive. This data is stored on external servers managed by cloud providers.

VoIP (Voice over IP) uses IP addresses to route data packets to the correct destination on a network, just like other internet traffic.

Typing in all capital letters is considered shouting in online communication and is generally discouraged as poor netiquette.

A podcast is a series of spoken-word, audio episodes, all focused on a particular topic or theme, that a user can subscribe to and download.

A blog (short for weblog) is an online journal or informational website displaying information in reverse chronological order.

Wikis are collaborative websites where users can create and edit content. While some wikis are open to the public, most require users to be registered members to contribute.

Common access levels include Read Only, Read/Write, and Full Control. Read/View is redundant and not a standard technical term for access permissions.

Zipping is the common term for compressing files to reduce their size. Other options like lacing, fastening, and buttoning are not standard technical terms for file compression.

Pay-per-click (PPC) is a standard model of online advertising where advertisers pay a fee each time one of their ads is clicked. The other terms are fabricated variations.

Video conferencing is a communication tool used for meetings or collaboration, rather than an entertainment service. Online gaming, on-demand films, and radio players are all primary forms of digital entertainment.

Email is a digital method used to send and receive messages between users, classifying it as a communication service. It does not fit into commerce, government, or real-time categories in the same way.

Online tax returns are a service provided by government agencies for citizens to fulfill their fiscal obligations. Banking, travel, and auctions are typically private sector services.