Lecture CCNA Exploration 4.0 (Kỳ 1) - Chapter 1: Living in a Network Centric World

This chapter describe how networks impact our daily lives. Describe the role of data networking in the human network. Identify the key components of any data network. Identify the opportunities and challenges posed by converged networks. Describe the characteristics of network architectures: fault tolerance, scalability, quality of service and security. Install and use IRC clients and a Wikiserver.
Nội dung trích xuất từ tài liệu:
Lecture CCNA Exploration 4.0 (Kỳ 1) - Chapter 1: Living in a Network Centric World Chapter 1-Living in a Network Centric World CCNA Exploration 4.0 Objectives • Describe how networks impact our daily lives. • Describe the role of data networking in the human network. • Identify the key components of any data network. • Identify the opportunities and challenges posed by converged networks. • Describe the characteristics of network architectures: fault- tolerance, scalability, quality of service and security. • Install and use IRC clients and a Wiki server. Học viện mạng Bach Khoa - Website: www.bkacad.com Communication in a Network-Centric World Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life 1.1.1.1 • Communication is almost as important to us as our reliance on air, water, food, and shelter. • The communication method changes and evolves constantly. • Early data network: limited to exchanging character-based information between connected computer systems. • Current networks have evolved to carry voice, video streams, text, and graphics between many different types of devices. Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life The way we live Học viện mạng Bach Khoa - Website: www.bkacad.com Lab 1.1.1.4 • http://googleearthonline.blogspot.com/ Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life Học viện mạng Bach Khoa - Website: www.bkacad.com Extra: Wikipedia Học viện mạng Bach Khoa - Website: www.bkacad.com Extra: RSS • A podcast is a digital media file, or a related collection of such files, which is distributed over the Internet using syndication feeds for playback on portable media players and personal computers. • A web feed is a data format used for providing users with frequently updated content. Content distributors syndicate a web feed, thereby allowing users to subscribe to it. Making a collection of web feeds accessible in one spot is known as aggregation, which is performed by an Internet aggregator. A web feed is also sometimes referred to as a syndicated feed. • RSS (Really Simple Syndication) is an XML-based vocabulary that specifies a means of describing news or other Web content that is available for feeding (distribution or syndication) from an online publisher to Web users. Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life The way we learn • Communication, collaboration, and engagement are fundamental building blocks of education. The learning materials include interactive activities, assessments, and feedback. • Traditional learning methods: student can obtain information only from the textbook and the instructor. • E-learning courseware: contain voice, data, and video; any time, anywhere; online discussion. Combine instructor-led classes with online courseware. • Access to high quality instruction. • Removed geographic barriers Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life • The Cisco Networking Academy Program is an example of a global online learning experience. • Online courseware and delivery offer many benefits: 1. Current and accurate training materials. 2. Availability of training to a wide audience. 3. Consistent quality of instruction. 4. Cost reduction. Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life The way we work • Many different types of information services: e-mail, video, messaging, and telephony. • Intranets for private, extranets for suppliers, vendors, and customers. Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life The way we work • Many different types of information services: e-mail, video, messaging, and telephony. • Intranets for private, extranets for suppliers, vendors, and customers. Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life The way we play • Supported by services delivered by the data network Học viện mạng Bach Khoa - Website: www.bkacad.com How Networks Impact Daily Life Học viện mạng Bach Khoa - Website: www.bkacad.com Communication – An essential Part of Our Lives Học viện mạng Bach Khoa - Website: www.bkacad.com Communication • Basic characteristics of communication: 1. Rules or agreements are 1st established 2. Important information may need to be repeated 3. Various modes of communication may impact the effectiveness of getting the message across. Học viện mạng Bach Khoa - Website: www.bkacad.com Quality of Communications External Factors • The quality of the pathway between the sender and the recipient • The number of times the message has to change form • The number of times the message has to be redirected or readressed • The number of other messages being transmitted simultaneously on the communication network • The amount of time allotted for successful communication Học viện mạng Bach Khoa - Website: www.bkacad.com