Computer application.pdf

Computer application Chapter (2) Connecting and communicating online Questions and Answers Q1) Explain how ARPANET contributed to the growth of the Internet? A1) 1: Allow scientist at different physical locations to share information’s and work together. 2: Func...

Computer application Chapter (2) Connecting and communicating online Questions and Answers Q1) Explain how ARPANET contributed to the growth of the Internet? A1) 1: Allow scientist at different physical locations to share information’s and work together. 2: Function even if a part of the network were disabled or destroyed by a disasters. ARPANET: Advanced Research Projects Agency Network In summary: linked scientific and academic researchers across the US Q2) Describe the role of a host on a network? A2) a host is a server, provides services and connections to other computers on a network Q3) Identify the role of the W3C? A3) overseas research and sets standards and guidelines for many areas of the internet Q4) Define the terms, dongle and broadband. List popular wired and wireless broadband Internet services. A4) Dongle: small device that connects to a computer and enables additional functions when attached Broadband: fast data transfer speeds and always-on connection examples: cable internet service, DSL, FTTP, fixed wireless, mobile broadband, satellite internet service Q5) State the purpose of a hot spot, and list tips for using hot spots safely. A5) purpose: wireless network that provides internet connections to mobile computers and devices safe tips: avoid typing passwords, sign out, disable wireless connection, don’t leave unattended, beware of over the shoulder snoopers Q6) ISP stands for A6) Internet Service Provider Q7) Briefly describe how data and information travel the Internet? A7) Use servers and clients and etc to transfer data. like highway. Q8) Describe the purpose and composition of an IP address. Differentiate between IPv4 and IPv6. A8) IP address: sequence of numbers that uniquely identifies the location of each computer or device connected to the internet IPv4: 74.125.224.72 IPv6: 2001:4860:4860:8844 Q9) Define the term, domain name. List general steps to register for a domain name. A9) Domain name: text based name that corresponds to the IP address of a server that hosts a website. steps: run a browser. locate registrar and navigate to website. search for name you can get Prepared by: Mohamud Salad  Computer application Q10) Identify the purpose of several generic TLDs. Identify ICANN’s role with TLDs. A10).com: commmercial organizations.edu: educational institutions.gov: government agencies.mil: military organizations.net: network providers or commercial companies.org: nonprofit organizations Q11) Describe how and why cyber squatters register domain names. A11) make people buy them back Q12) State the purpose of a DNS server. A12) translates domain name to its associated IP address so the request can be routed to the correct computer Q13) Differentiate between static and dynamic webpages? A13) Static: see same content Dynamic: content regenerated each visit Q14) Distinguish among the web, a webpage, a website, and a web server.? A14) web: worldwide collection of documents webpage: electronic document on web web site: collection of related webpages and associated items web server: computer that delivers requested webpages to you computer or mobile device Q15) Explain the purpose of a browser. Describe the function of tabbed browsing? A15) A browser enables users with internet connection to access and view webpages. Tabbed browsing: top of browser shows a tab for each webpage at top of browser Q16) List ways you can browse safely? A16) 1.verify website is safe 2. turn off location sharing 3. never store passwords 4.use phishing filter 5. pop-up block 6. private browsing 7. Proxy Q17) Name examples of popular browsers for personal computers and mobile devices. A17) chrome, fire fox, internet explorer, opera, safari Q18) Define the term, web address. Name a synonym? A18) Web address: unique address of webpage; Name a synonym: URL Q19) Name and give examples of the components of a web address. A19) Protocol Host Name Domain Name Path Prepared by: Mohamud Salad  Computer application [http://] {www.} [nps.gov] {/history} Webpage Name: [/places.htm] Q20) Describe the purpose of a web feed? A20) content that has changed on a website Chapter (4) Programs and Apps Questions and Answers Q1) List categories of programs and apps. _____ is another word for program? A1) Categories of programs and apps :retail, custom, web app, mobile app, mobile web app, shareware, free ware, open source, public domain; Software is another word for program. Q2) Define these terms: operating system, tools, and system software? A2) Operating system: set of programs that coordinates all the activities among computer or mobile hardware. –Tools and activities –system software Tools: enable you to perform maintenance type tasks usually related to managing devices, media, and programs System software: operating system and other tools Q3) List examples of desktop and mobile operating systems? A3) desktop: mac OS, windows, Linux, chrome Mobile operating systems: android, iOS, windows phone Q4) Describe how an operating system interacts with the computer? A4) serves as interface b/w user and apps or programs. Q5) List software available in variety of forms? A5) Retail, Custom, Web app, Mobile app, Mobile web app, Shareware, Freeware, Open source, Public domain Q6) ____ software performs functions specific to a business or industry. A6) retail software Q7) Differentiate among web apps, mobile apps, and mobile web apps. A7) web apps: app on a web server mobile apps: download from app store , mobile web apps: display in browser or mobile device Q8) List any restrictions for shareware, freeware, open source, and public domain software? A8) shareware: copyright, pay after trial freeware: copy right, cannot be Prepared by: Mohamud Salad  Computer application incorporated in all apps intended for sell open source: none public domain: no copyright restrictions Q9) Explain considerations for safely downloading software and apps? A9) search for popular, compatible, read ratings and reviews Q10) Describe steps to register and activate software? A10) submit name and personal information Prepared by: Mohamud Salad