search engine Flashcards
revision (21 cards)
How do search engines work?
Finding results relative to certain keywords in the search.
What is an ISP?
An ISP is a company that provides an internet connection for businesses and homes, usually for a monthly fee.
What does DNS stand for?
Domain Name System
What is the function of DNS?
Converts a URL into an IP address.
Provide an example of a URL and its corresponding IP address.
URL: www.google.com, IP Address: 172.217.16.228
What is a Web Server?
A web server (e.g. Apache) is a piece of software for transferring files between two computers using a web browser.
What role do web browsers play?
Web browsers interpret code that is downloaded from a web page for display.
What is the World Wide Web?
The World Wide Web is an information system that uses URLs to identify documents and other web resources that can be linked and viewed over the internet.
Fill in the blank: A web server is used for _______ between two computers.
transferring files
True or False: An ISP does not have a DNS database.
False
What does the World Wide Web use to identify documents?
Uniform Resource Locators (URLs)
What does a Hub do in a network?
Copies all data packs to all devices on the network, but only the device that requires the data will recognize and accept it.
How does a Switch function in a network?
Analyzes each packet of data and sends it to the computer it was intended for.
What is the primary role of a Router in a network?
Stores the addresses of computers on the network and transfers data between devices, connecting at least two different networks.
What is a Server?
A piece of computer hardware or software that provides functionality for other programs or devices known as clients.
Fill in the blank: A ______ is a device that connects at least two different networks.
[Router]
True or False: A Hub analyzes data packets before sending them to devices.
False
What is the difference between a Hub and a Switch?
A Hub copies data packs to all devices, while a Switch analyzes data packets and sends them to the intended computer.
Fill in the blank: A ______ provides functionality for clients in a network.
[Server]
What is the purpose of a Router?
To transfer data between devices and connect different networks.
True or False: A Server can only be hardware.
False
