Computer Science Test 5 Nddc Scholarship

Telecommunication refers to the electronic transmission of information (signals). While it can transmit the data found on a disk (like text or sound files), it cannot physically move a hardware object like a floppy disk or hard drive through the wires.

A MODEM (MOdulator-DEModulator) is essential for converting a computer's digital signals into analog signals that can travel over phone lines. It also does the reverse, turning incoming analog sounds back into digital data the computer can understand.

When a device is 'online,' it has an active connection to a network and is capable of sending, receiving, and processing data. This state implies that the system is authenticated and reachable by other nodes on the network, distinguishing it from an 'offline' state where the connection is severed or inactive.

The '.com' top-level domain (TLD) stands for 'commercial.' While it has become the most common and unrestricted TLD on the web used by many types of entities, its original and primary purpose was to identify businesses and for-profit commercial organizations.

Dynamic Data Exchange (DDE) is a technology used in older versions of Windows that allows different applications to share data and send commands to one another. For example, it could be used to automatically update a table in a word processor when the source numbers in a spreadsheet were changed.

Google is primarily a search engine. It uses automated 'spiders' or 'crawlers' to index billions of pages across the World Wide Web, allowing users to find specific information by entering keywords. Unlike a directory, which is human-curated, a search engine uses complex algorithms to rank and display the most relevant results.

In a client-server model, the 'client' (the browser) requests data, while the 'server' (the host) stores the data and serves it upon request. A host is any computer hardware that provides resources, services, and applications to users or other nodes on the network.

An Intranet is a private, internal network restricted to the members of a specific organization, used for sharing internal information and resources safely. The Internet is a public, global network of networks that connects millions of private, public, academic, business, and government networks worldwide.

This is false. Most images found on the internet are protected by copyright law from the moment they are created. Unless an image is explicitly marked as 'Public Domain' or released under a specific license (like Creative Commons), you generally need permission from the owner to use or distribute it.

A Very Small Aperture Terminal (VSAT) is a small satellite earth station used for two-way data, voice, and video signals. Because the dish antennas are typically less than 3 meters in diameter, they are 'very small' compared to the large satellite dishes used by major telecommunications hubs.