DISCOVERING COMPUTERS TECHNOLOGY IN A WORLD OF COMPUTERS .

1y ago
176 Views
29 Downloads
280.63 KB
11 Pages
Last View : 5d ago
Last Download : 1m ago
Upload by : Elise Ammons
Transcription

Full file at -1st-Edition-Vermaat-Solutions-ManualDiscovering Computers 2014Chapter 2DISCOVERING COMPUTERS: TECHNOLOGY IN AWORLD OF COMPUTERS, MOBILE DEVICES, AND THEINTERNETCHAPTER TWO: THE INTERNETEND OF CHAPTER SOLUTIONSSTUDY GUIDEThis study guide identifies material you should know for the Chapter 2 exam. You maywant to write the answers in a notebook, enter them on your digital device, record them into aphone, or highlight them in your book. Choose whichever method helps you remember the best.1. Explain how ARPANET contributed to the growth of the Internet.ARPANET built a network of four main host computers, or servers in 1969. Today,millions of hosts connect to this network, which is now known as the Internet.2. Describe the role of a host on a network.A host is any computer that provides services and connections to other computer on anetwork.3. Identify the role of the W3C.The W3C oversees research and sets standards and guidelines for many areas of theInternet.4. Define the term, broadband. List popular wired and wireless broadband Internet services.Broadband Internet service has fast data speeds and an always-on connection. Popularwired broadband Internet service technologies include: cable internet service, DSL, andFTTP. Popular wireless broadband Internet service technologies include: Wi-Fi, mobilebroadband, fixed wireless, and satellite Internet service.5. State the purpose of a hot spot and where you might find one.A hot spot is a wireless network that provides Internet connections to mobile computersand devices. Many public locations, such as airports, hotels, schools, malls, coffee shops,and city parks are hot spots.6. ISP stands for .ISP stands for Internet service provider.7. Briefly describe how data and information travel the Internet.1Full file at -1st-Edition-Vermaat-Solutions-Manual

Full file at -1st-Edition-Vermaat-Solutions-ManualDiscovering Computers 2012Chapter 2Data and information travel on the Internet by transferring from one network to anotheruntil reaching the final destination.8. Describe the purpose and composition of an IP address. [EB] What are IPv4 and IPv6?An IP address is a sequence of numbers that uniquely identifies the location of eachcomputer or device connected to the Internet. An IP address consists of numbersseparated by periods or colons. IPv4 and IPv6 are addressing schemes for IP addresses.IPv6 added additional length to IP address, increasing the number of possible addresses.9. Define the term, domain name.A domain name is a text-based name that corresponds to the IP address of a server thathosts a website.10. Identify the purpose of several generic TLDs. Identify ICANN’s role with TLDs.Popular TLDs include: .com (commercial organizations), .edu (educational), .gov(government), .mil (military), .net (network providers), and .org (nonprofits). ICANNapproves and controls TLDs.11. Describe how and why cybersquatters register domain names.Cybersquatters buy and register unused or lapsed domain names so that they can profitby selling them.12. State the purpose of a DNS server.A DNS server translates a domain name to its IP address.13. Differentiate between static and dynamic webpages.A static webpage displays the same content to all visitors. A dynamic webpage customizessome or all of the viewed content based on the user’s preferences or past experience.14. Distinguish among the web, a webpage, a website, and a web server.The web is a worldwide collection of electronic documents. A webpage is an electronicdocument on the web. A website is a collection of related webpages and associated items.A web server is a computer that delivers requested webpages to computers and mobiledevices.15. Explain the purpose of a browser. List ways you can browse safely.A browser is an application that enables users with an Internet connection to access andview webpages on a computer or mobile device. Safe browsing techniques include:verifying the website is safe, clearing your browser history, using a phishing filter,enabling a pop-up blocker, and browsing anonymously.16. Name examples of popular browsers for personal computers and mobile devices.Popular browsers for personal computers include Chrome, Firefox, Internet Explorer,Safari, and Opera. Mobile browsers include opera Mini, Safari, Google Android’sbrowser, Google Chrome, Firefox Mobile and Internet Explorer Mobile.17. Describe the function of tabbed browsing.Full file at -1st-Edition-Vermaat-Solutions-Manual

Full file at -1st-Edition-Vermaat-Solutions-ManualDiscovering Computers 2014Chapter 2Tabbed browsing uses tabs to display multiple webpages in a browser window.18. [EB] Explain how a phishing filter can protect you.A phishing filter warns or blocks you from potentially fraudulent or suspicious websites.19. Define the term, web address. Name a synonym.A web address is the unique address of a webpage. A web address is also called a URL.20. Name and give examples of the components of a web address.A web address incudes protocol (http), host name (www), domain name (nps.gov), path(history/), and/or filename (places.htm).21. Describe the purpose of a web feed and the role of a feed reader.A web feed contains content that has changed on a webpage. A feed reader reads a user’sspecified web feeds and collects their most recent content.22. Explain the relationship between web and mobile apps.A web app is an application stored on a web server that you access through a browser. Amobile app is an application you download to a mobile device. Services such as banksand email often sync their web app and mobile app versions so you can access the datafrom anywhere you have an Internet connection, regardless of the computer or deviceused.23. Describe the purpose of GPS receivers, and why they are embedded in smartphones.A GPS receiver is a handheld, mountable, or embedded device that contains an antenna,radio receiver, and processor. Most smartphones include GPS receivers to that users candetermine their location, obtain directions, and locate points of interest.24. Besides webpages, identify other items a search engine can find.Search engines can locate: images, videos, maps, audio, publications, people orbusinesses, and blogs.25. [EB] Name the products or services of Yahoo! and Google, with respect to browsing.Yahoo! and Google are popular websites that includes email, search services, and more.26. Describe how to use a search engine. What are some ways you can refine a search?Search engines require that you enter a word or phrase, called search text, to describethe item you want to find. To improve your results, use specific nouns, put the mostimportant terms first, list all possible spellings, read the search engine’s Helpinformation, and try other search engines.27. Differentiate between a search engine and a subject directory.A search engine provides results based on the search terms a user provides. A subjectdirectory classifies webpages in an organized set of categories, such as sports orshipping.3Full file at -1st-Edition-Vermaat-Solutions-Manual

Full file at -1st-Edition-Vermaat-Solutions-ManualDiscovering Computers 2012Chapter 228. Explain how to use a social networking site for personal or business uses.You can use a social networking site for personal use to share photos, videos, personalgreetings, and status updates; recommend or like online content; and check in alocations. Business uses include connecting with customers, providing promotionaloffers, and targeted advertisements.29. List ways to use social networking sites securely.Social networking site safety tips include; choose friends carefully, limit friends, prohibitemail address book scams, divulge only relevant information, be leery of urgent requestsfor help, read the privacy policy, and manage your profile.30. Describe the purpose of these types of websites: informational; media sharing andbookmarking; news, weather, and sports; educational; business, governmental, andorganizational; blogs; wikis; health and science; entertainment; financial; travel andmapping; shopping and auctions; career and employment; and portals.Informational websites contain factual information. Media sharing and bookmarkingwebsites enables members to manage and share media. News, weather, and sportswebsites contain newsworthy material. Educational websites offer avenues for formaland informal teaching and learning. Business, governmental, and organizationalwebsites provide customers and citizens with information. Blogs are informal websitesconsisting of time-stamped articles in a diary or journal format. Wikis enable users toorganize, edit, and share information. Health and science websites provide informationfor public access, or for professionals to share information. Entertainment websites offermusic, videos, shows, performances, events, and more. Financial websites enable users toaccess financial records, use online banking, and make investments. Travel and mappingwebsites enable users to reserve a flight, hotel, or vehicle. Shopping and auction websitesenable you to purchase products and services. Career and employment websites providecareer information and job listings. Portals provide a variety of Internet services fromone location.31. List techniques to protect yourself from identity theft.Guidelines to protect yourself from identity theft include: do not tap or click links inspam, install a firewall, clear or disable cookies, turn off file and printer sharing, set up afree email to use for merchant forms, and more.32. Describe ways you can shop online safely.Online shopping safety tips include: read customer reviews, look for seals of approval,create a strong password, check website details, and beware of requests to supply furtherinformation.33. List some criteria you can use to narrow your search for a job online.To narrow your job search online, enter relevant keywords, select an appropriatecategory, and limit your results to a geographic area.34. Define the term, e-commerce. Differentiate among B2C, C2C, and B2B e-commerce.E-commerce is a business transaction that occurs over an electronic network such as theFull file at -1st-Edition-Vermaat-Solutions-Manual

Full file at -1st-Edition-Vermaat-Solutions-ManualDiscovering Computers 2014Chapter 2Internet. B2C is the sale of goods and services to the general public. C2C is whenconsumers sell directly to each other, and B2B is when businesses provides goods andservices to other businesses.35. List the seven criteria for evaluating a website’s content.The seven criteria for evaluating a website’s content are: affiliation, audience, authority,content, currency, design, and objectivity.36. Identify and briefly describe the steps in web publishing.The steps in web publishing are: Plan: identify the purpose and audience. Design: select appearance, layout, colors, and formats. Determine content. Create: use a word processing program, content management system, websiteauthoring software, text editor, and possibly website management software. Host: transfer the webpage from your computer to a web server. Maintain: keep contents current and ensure links work properly.37. refers to any application that combines text with media.Multimedia refers to any application that combines text with media.38. Describe website accessibility guidelines.Website accessibility guidelines increase access for all users, including those with pooreyesight or color blindness; tremors and loss of muscle control; hearing loss; seizuredisorders, and other disabilities including dyslexia.39. Explain how webpages use graphics, animation, audio, video, virtual reality, and plugins.A graphic is a visual representation of nontext information. An animation is a series ofstill images to create motion. Audio includes music, speech, or other sound. Video clipsconsist of images displayed in motion. Virtual reality is the use of computers to simulatea real or imagined environment that appears as a 3D space. Plug-ins are programs thata browser uses to display multimedia elements on a webpage.40. Define the terms, thumbnail and infographic.A thumbnail is a small version of a larger object that you usually can tap or click todisplay a larger image or object. An infographic is a visual representation of data orinformation.41. Name the types of graphics formats used on the web and how they use compression.JPEG and PNG formats are commonly used on the web. JPEG balances image qualityand file size, so the more it is compressed the smaller the image is. PNG is a compressedformat that restores all image details when the file is viewed.42. Describe the purpose of these Internet services and explain how each works: email, emaillists, instant messaging, chat rooms, discussion forums, VoIP, and FTP.Email is the transmission of messages and files via a computer or network. An email list5Full file at -1st-Edition-Vermaat-Solutions-Manual

Full file at -1st-Edition-Vermaat-Solutions-ManualChapter 2Discovering Computers 2012is a group of email addresses used for mass distribution of a message. Instant messagingis real-time Internet communications that allow you to exchange message or files. Chatrooms are websites or applications that permit users to chat with others who are onlineat the same time. Discussion forums are online areas in which users have writtendiscussions about a subject. VoIP enables users to s peak to other users via

Discovering Computers 2014 Chapter 2 1 DISCOVERING COMPUTERS: TECHNOLOGY IN A WORLD OF COMPUTERS, MOBILE DEVICES, AND THE INTERNET CHAPTER TWO: THE INTERNET END OF CHAPTER SOLUTIONS STUDY GUIDE This study guide identifies material you should know for the Chapter 2 exam. You may want to write the answers in a notebook, enter them on your digital device, record them into a