MIS Module 7: Objectives
State three advantages that 5G wireless communications will provide over 4G communications
- More bandwidth - Lower latency - Supports many more devices - Enables exciting new applications
Identify three advantages associated with software-defined networking
- New applications can be made available earlier - Risk of human error is reduced - Network support and operation costs are reduced
State the purpose of client-side programming languages and three commonly used server-side programming languages
- The purpose of client side programming languages are provide an interface to allow the client computer to request services of the server computer. - Three commonly used server-side programming languages are PHP, C++, Java, and Python.
Coaxial Cable
Insulated copper wire, cleaner/faster transmission than twisted pair, more expensive
Describe how the Internet works, including the roles of the Internet backbone, TCP/IP protocol, IP address, switches, and routers
Internet backbone: - High-speed, long-distance communication link Transmission Control Protocol/Internet Protocol (TCP/IP): - Collection of communication protocols - Interconnects network devices on a packet switching network IP address: - 64-bit number uniquely identifying a computer Switch: - Keeps a record of the MAC address of all the devices connected to it Determines port a frame of data should be directed to Router: - Directs data packets to other networks until each packet reaches its destination
Explain how intranets and extranets use Internet technologies
Intranet: - Internal corporate network - Uses Internet and WWW standards and products Extranet: - Built using Web technologies - Links selected company intranet resources with customers, suppliers, or other business partners
Describe four network types in common use today
Personal area network (PAN): Connects devices close to one person Local area network (LAN): Connects systems and devices within a small area Metropolitan area network (MAN): Connects users and their computers in a geographical area that spans a campus or city Wide area network (WAN): Connects large geographic regions
Describe three networks topologies in common use today
Star network: - Devices connect through a single central device called the hub node Bus network: - Devices connected to a common backbone - Serves as a shared communications medium Mesh networks: - Multiple access points link a series of devices across a large area
Outline the process and tools used in developing five common Internet and Web applications
Tools for creating Websites include Adobe Dreamweaver, RapidWeaver, and Nvu
Twisted Pair Wire
Twisted pairs of copper wires, widely available, limitations on transmission speed/distance, cheaper
Describe five common Internet and Web applications
Youtube, Wikipedia, Facebook, Flickr, Twitter
Wireless Networking
802.11 ac is the most recent standard with the highest transmission speeds and most stable connections
Describe how the Web works, including the roles of the client/server architecture, Domain Name System, URL, hyperlinks, Web browser, HTML, XML, and CSS
Client/server architecture: - Many clients request and receive services from servers on the network Domain name system (DNS): - Maps the name people use to locate a Web site to the IP address that a computer uses to locate a Web site Uniform Resource Locator (URL): - Web address specifying the exact location of a Web page using letters and words that map to an IP address and a location on the host Hyperlinks: - Highlighted text or graphics in a Web document - Opens a new Web page when clicked Hypertext Markup Language (HTML): - Standard Web page description language - HTML tags (tags) indicate how to format text or graphic Extensible Markup Language (XML): - Markup language for Web documents - XML does not have a predefined tag set Cascading Style Sheet (CSS): - Markup language for defining the visual design of a Web page or group of pages
Fiber-Optic Cable
Extremely thin glass bound together, much smaller, higher transmission rates, most expensive
