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Computer science > INTERNET extd 2 > Flashcards

INTERNET extd 2 Flashcards

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1
Q

Various Internet Services

A

Internet services include Email, Internet Videoconferencing, Internet Telephony, Content Streaming, Instant Messaging, Usenet and Newsgroups, Telnet, and more.

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2
Q

Email Services

A

Email allows the exchange of digital messages. Today’s email systems are based on a store-and-forward model, enabling servers to accept, forward, deliver, and store messages, allowing users and their computers not to be online simultaneously.Gmail Features

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3
Q

Gmail Features

A

Gmail offers various features such as scheduling emails, sending large attachments via Google Drive, utilizing smart compose for quicker email composition, advanced search options, and more.

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4
Q

Web Sites Supporting Email Services

A

Websites like Gmail, Rediff Mail, Yahoo! Mail, Hotmail, Inbox Mail, and Zoho Mail offer email services.

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5
Q

Internet Video Conferencing

A

Video conferencing involves live audio-visual meetings between multiple participants, facilitated by a strong internet connection. It’s commonly used for business communication and requires appropriate hardware and software.

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6
Q

Video Conferencing Requirements

A

Requirements for video conferencing include a stable internet connection, a video display device, a computer or conference phone, various peripherals, and video conferencing software.

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7
Q

Top Video Conferencing Software

A

Top video conferencing software includes Google Meet, Skype, Zoom, Cisco Webex Meetings, Google Hangouts Meet, and Microsoft Teams.

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8
Q

What are some alternative names for Internet phone service?

A

VoIP, Internet Phone Service, and Broadband Phone Service are alternative names for Internet telephony.

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9
Q

How does Internet phone service differ from traditional telephone service?

A

Internet phone service uses the internet connection to send and receive voice, operating independently of the Public Switched Telephone Network (PSTN).

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10
Q

What protocol is used in Internet telephony to route calls through the internet?

A

VoIP (Voice over Internet Protocol) is the special protocol used to route calls through the World Wide Web.

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11
Q

How is streaming content defined?

A

Streaming content is an audio or video file played while being downloaded from the internet.

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12
Q

What is the benefit of streaming media?

A

Streaming media significantly reduces or eliminates wait times for online content, depending on the internet connection speed.

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13
Q

What defines Instant Messaging (IM)?

A

IM is a form of online chat allowing real-time text communication over the internet.

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14
Q

Can you name some popular IM services?

A

Some popular IM services include Facebook, WhatsApp, Skype, Hangout, qq, and WeChat.

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15
Q

What is Usenet?

A

Usenet is a distributed Internet Discussion System enabling users to read and post messages to categories known as newsgroups.

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16
Q

What protocol does Usenet use?

A

Usenet uses the Network News Transfer Protocol (NNTP) to organize newsgroups into subject hierarchies.

17
Q

What defines a Web Client and a Web Server?

A

In a web environment, a Client is any machine that requests information, and the Server is the machine that receives the request and sends back the requested information.

18
Q

What is the role of a Web Server?

A

A Web Server is designed to accept requests from remote computers and send the requested information back to those computers.

19
Q

What does URL stand for?

A

URL stands for Uniform Resource Locator, and it’s the global address for documents and resources on the World Wide Web.

20
Q

What refers to the Web Client in a web environment?

A

The Web Client is the browser on a user’s PC or Mac that makes requests to remote servers.

21
Q

How is a URL structured?

A

It consists of a protocol identifier, which specifies the protocol to use, and a resource name, which indicates the IP address or domain name where the resource is located.

22
Q

How is a domain name structured?

A

A domain name is separated by dots and typically consists of an organization’s name and a suffix, which represents the type of organization. For instance, “ibm.com” or “un.org”.

23
Q

What is the function of a proxy server?

A

A proxy server acts as a relay between the client and the server, helping prevent unauthorized access to private networks and serving as a tool to build a firewall.

24
Q

Can you name some common gTLDs?

A

Some commonly used generic top-level domains (gTLDs) are .com (for businesses), .edu (for educational institutions), .org (for non-commercial organizations), among others.

25
Q

How does a proxy server work in handling requests to the Internet?

A

All requests to the Internet go through the proxy server, which evaluates the request and forwards it to the Internet, and responses from the Internet first go through the proxy server to the user.

26
Q

What are search engines?

A

Search engines are software systems designed to search for information on the World Wide Web, easily accessed via internet browsers like Google Chrome, Safari, etc.

27
Q

How are search results presented by search engines?

A

The search results are typically shown in a line of results known as Search Engine Results Pages (SERPs).

28
Q

How can information be searched using these engines?

A

Searches can be conducted based on textual, voice-based, or image inputs, and the results can include web pages, images, and other file types.

29
Q

Who developed Google Search?

A

Google Search is a web search engine developed by Google and handles over three billion searches each day.

30
Q

What features does Google Search provide?

A

Beyond searching for words, Google Search includes features like synonyms, weather forecasts, maps, sports scores, and movie showtimes.

31
Q

Who operates Bing?

A

Bing is a web search engine owned and operated by Microsoft, available in 40 languages and offering web, video, image, and map search products.

32
Q

How was Bing introduced and what replaced it?

A

Bing replaced Microsoft’s previous search engines like MSN Search, Windows Live Search, and Live Search on June 3, 2009.

33
Q

What is Yahoo Search and when was it launched?

A

Yahoo Search is a web search engine owned by Yahoo, launched in March 1995, written in PHP scripting language, and available in 40 languages.

34
Q

What notable feature did Yahoo introduce in 2008?

A

Yahoo introduced SearchScan, which automatically alerts users about viruses, spyware, and spam websites.

35
Q

What are the sequential steps in which a search engine operates?

A

A search engine typically follows three main steps in its operation:

Web Crawling
Indexing
Ranking

36
Q

What is Indexing in the context of a search engine’s operations?

A

Indexing involves storing and organizing the content discovered during the web crawling process. Once content is indexed, it becomes a potential result to be displayed for relevant queries.

37
Q

What is a Web Crawler or Spider in the context of search engines?

A

A Web Crawler is an Internet bot that systematically browses the web, typically managed by search engines for web indexing purposes. It starts with a list of URLs to visit (seeds) and identifies hyperlinks on these pages, adding them to the list of URLs to visit (crawl frontier). Googlebot is one of the most widely recognized web crawlers.

38
Q

What is Ranking and how does it function in search engine operations?

A

Ranking involves providing the most suitable content to answer a user’s query. Search results are ordered from most relevant to least relevant to provide the best possible answer to the searcher’s query.

39
Q

What are some notable points about search engines in terms of ranking and commercial ventures?

A

Most web search engines are commercial enterprises supported by advertising revenue. Some allow advertisers to have their listings ranked higher in search results for a fee.
Search engines that don’t accept payment for search results make money by running search-related ads alongside regular search results. They generate revenue when users click on these ads.

Computer science (13 decks)

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