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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 6 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
a. 1.How can data communications networks affect businesses?
2. Discuss three important applications of data communications networks in business and personal use. 3. Define information lag and discuss its importance
4. Describe the progression of communications systems from the 1800s to the present.
b. 1. Describe the progression of information systems from the 1950s to the present.
2. Describe the progression of the Internet from the 1960s to the present.
3. How do local area networks (LANs) differ from metropolitan area networks (MANs), wide area networks (WANs), and backbone networks (BNs)?
4. Â What is a circuit?
c. 1. What is a client?
2.What is a server?
3. Why are network layers important?
4. Describe the seven layers in the OSI network model and what they do.
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Q4
a. 1. Describe the five layers in the Internet network model and what they do.
2. Explain how a message is transmitted from one computer to another using layers.
3. Describe the three stages of standardization.
4. How are Internet standards developed?
b. 1. Describe two important data communications standards-making bodies. How do they differ?
2. What is the purpose of a data communications standard?
3. What are three of the largest interexchange carriers (IXCs) in North America?
4. Name two regional Bell operating companies (RBOCs). Which one(s) provide services in your area?
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