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Questions and Answers
What is the main function of W3C?
What is the minimum RAM requirement for a good browsing experience?
What is the primary function of a modem?
What is the unit of measurement for modem speed?
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What is the minimum resolution required for a color monitor?
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What is the minimum hard disk space required for storing Internet software and temporary files?
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What type of modem is a card fitted inside the computer?
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What is the function of demodulation in a modem?
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What is the primary function of EFT technology?
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What is the term used to describe transactions through a mobile phone network and data connection?
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What is the main advantage of e-commerce over traditional commerce?
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What is the primary purpose of encryption in e-commerce?
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What is an example of a well-known e-commerce site?
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What is the term used to describe electronic shopping malls?
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What is the process that operates on a message to assure message source authenticity and integrity?
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What is included in the services of mobile commerce?
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What is the primary function of TCP/IP?
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What type of Internet access is suitable for users who frequently download or upload a fair amount of data?
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What is the main purpose of dialer software?
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What is the primary function of a web browser?
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What is the result of the colossal growth of the Internet?
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What is electronic mail (e-mail) primarily used for?
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What is a characteristic of the Internet?
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What is an advantage of using the Internet?
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What is the primary function of the Bcc field in an email?
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What is the protocol used for sending email?
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What is the function of the DNS server in the email process?
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What is the purpose of breaking down an email address into two parts?
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What is the role of the mail server in the email process?
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What is the primary function of the Cc field in an email?
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What is the protocol used for accessing email messages?
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What is required to send an email?
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What is the primary purpose of a script in a web page?
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Which of the following is NOT a programming language used to provide dynamism to a web page?
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What is the primary mechanism by which a virus infects a computer system?
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What is the common initial action of a virus when it infects a computer system?
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What is the full form of the acronym 'VIRUS'?
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What is the primary method by which a virus spreads from one computer to another?
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Which of the following is a type of virus that may only be slightly irritating?
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What is the term used to describe the ability of a virus to replicate itself without the user's knowledge or permission?
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Study Notes
Internet Services
- The Internet provides directory and database services, Internet white pages, and domain name registration.
- The World Wide Web Consortium (W3C) was founded in 1994 to develop common protocols for the evolution of the World Wide Web.
Getting Connected to the Internet
- The basic requirements for getting connected to the Internet include a computer with at least a 386-microprocessor chip, 16 MB of RAM, a color monitor, and a hard disk with at least 200 MB of free space.
- A modem is necessary to transmit data over telephone lines, with speeds measured in kilobits per second (Kbps).
- There are two types of modems: internal modems (fitted inside the computer) and external modems.
Internet Software
- Three types of software are required to connect to the Internet: TCP/IP, dialer software, and a web browser.
- TCP/IP is the basic communication protocol of the Internet, allowing programs on the user's computer to communicate over the Internet.
- Dialer software instructs the modem to dial the phone number and identify the user's machine to the access provider's system for access to the network.
- A web browser is essential for viewing information available on the World Wide Web.
Internet Applications
- The Internet provides a wide variety of services, including electronic mail, file transfer, vast information resources, interest group membership, interactive collaboration, multimedia displays, real-time broadcasting, and shopping opportunities.
- Electronic mail (e-mail) is a fast, easy, and inexpensive way of communicating with other Internet users around the world.
- E-commerce enables the purchase of goods and services online, with developments in software providing increased facilities, such as digital signatures and encryption.
Electronic Mail
- Electronic mail (e-mail) allows users to send messages to multiple recipients using Cc (carbon copy) and Bcc (blind carbon copy).
- Attachments can be sent with e-mails, such as files created with programs like MS Word or Zip files.
- The electronic mailing system works like the postal service, with mail servers forwarding mail using SMTP (Simple Mail Transfer Protocol) in conjunction with POP (Post Office Protocol) and IMAP (Internet Mail Access Protocol) servers.
Dynamism on the Web
- Dynamism on the web is achieved using programming languages such as Perl, JavaScript, VBScript, Active Server Pages, PHP, and eXtensible Markup Language (XML).
- Scripts are written to provide interaction with web servers, allowing users to interact with web pages.
Internet and Viruses
- Viruses are programs or small code segments written with malicious intent, capable of attaching themselves to existing programs or files and replicating without the user's knowledge or permission.
- Viruses can enter computer systems from external sources like CD, pen drive, or e-mail and execute when an infected program is executed.
- There are many types of viruses, ranging from slightly irritating to destructive, with various levels of destructiveness.
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Description
Learn about the basic requirements for connecting to the Internet, including the role of directory and database services, World Wide Web Consortium, and more.
