Nt2799 Oral Exam Topic I: The input/ output Process 1. A person wishes to purchase a personal computer for home usage. Identify the internal hardware components this computer should contain. a. Mother board b. Power supply c. RAM d. NIC e. Graphic card if not on mother board f. Processor 2. Explain in simple terms the I/O process. a. The Input / Output Process - simply put anything that puts input into the computer is an Input device‚ such as a keyboard or mouse. Output is what comes out such as
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that might be provided include network throughput‚ user response times‚ and line utilization. SNMP Overview The Simple Network Management Protocol (SNMP) is an application layer protocol that facilitates the exchange of management information between network devices. It is part of the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite. SNMP enables network administrators to manage network performance‚ find and solve network problems‚ and plan for network growth. This chapter
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output of each adjacent layer. The OSI model is a protocol stack where the lower layers deal primarily with hardware‚ and the upper layers deal primarily with software. The OSI model’s seven layers are designed so that control is passed down from layer to layer. The seven layers of the OSI model are shown: Layers Functionality Application Application support such as File Transfer Protocol (FTP)‚ Telnet‚ and Hypertext Transfer Protocol (HTTP) Presentation Encryption‚ Server Message
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transport or application layer. 2. What is the history of the OSI reference model? How did it come about and why was it created? Use your textbook and Internet research to support your answer. A. It was created to standardize the way networks communicate. 3. What is the history of the TCP/IP model? Why was it created? Use your textbook and Internet research to support your answer. A. The model was to show the standard procedures and made it so people could understand how it worked. 3.2
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consists of seven layers that include Application‚ Presentation‚ Session‚ Transport‚ Network‚ Data Link and Physical. The Application layer often dubbed Layer 7 is the most common layer to end users and can consist of applications such as Microsoft’s Internet Explorer or other browser software. The Presentation layer provides a translation of application data to network format in order to be processed and is considered bidirectional. The Session layer is responsible for controlling communication between
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IP Data Networks Recognize the purpose and functions of various network devices such as Routers‚ Switches‚ Bridges and Hubs. Select the components required to meet a given network specification. Describe the purpose and basic operation of the protocols in the OSI and TCP/IP models. Welcome to the first chapter in your study for CCENT and CCNA! This chapter begins Part I‚ which focuses on the basics of networking. Because networks require all the devices to follow the rules‚ this part starts with
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life. Technology has taken over our lives and has become one of the basic necessities. One of them is Internet. Users are the most important part of the internet and with the day by day advancement in internet technology‚ that day is not far when our everyday life communication will be equipped with digital communications‚ protocols‚ microcontrollers and so on. The concept of IOT aims to make internet more accessible and easy to use in every aspect of life such as in home appliances‚ monitoring‚ vehicles
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network security. It mentions about the present situation of network security and an analysis of the reason that lead to unsafe network environment. Then the article introduces two frequently used protocols in network security: HTTP (Hypertext Transport Protocol) and HTTPS (Hypertext Transfer Protocol over Secure Socket Layer)‚ then compare them and give a brief conclusion. On the other side‚ the article introduces how firewall protects network security in hardware aspects. Keywords: Network;
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employee access. Extranet- Type of network that allows outside vendors special access to limited info in a company. Protocols- Rules of communication. * An identified sender and receiver * An agreed-upon method of communicating * Common language and grammar * Confirmation or acknowledgement requirements Elements of a Network: * Rules or agreements: protocols or how the message is semt‚ directed‚ received and interpreted. * Massages: units of info that travels * Medium:
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DATA COMMUNICATIONS 10-1 Communication Basics Computer communications is at three levels – Application level – Computer level – Communication channel Protocol – Set of rules for communications – OSI Standard 10-2 OSI Reference Model Layer 7 6 5 4 3 2 1 Name Application Layer Presentation Layer Session Layer Transport Layer Network Layer Data Link Layer Physical Layer Purpose Application-to-application communication Manage data representation
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