Analysis and Countermeasures of Network Security LiuBingyao Abstract This article is concerned about 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
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presentations‚ practical. Course Contents: 1. Internetworking & Internet Protocols:: Internetworking Basics‚ Internetworking Model‚ Ethernet Networking‚ Network topologies‚ Ethernet Cabling‚ Wireless Networking‚ OSI Reference Model:- Application layer‚ Presentation layer‚ Session layer‚ Transport layer‚ Network layer‚ Data link layer‚ Physical layer. TCP/IP & DoD Model‚ Binary to Decimal & Hexadecimal Conversion‚ IP Addressing‚ IP Terminology‚ Private IP Addressing. Broadcast Addresses.
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printers. The radiology information system data center consists of Apple cluster servers‚ data center workstations and two printers. The OR/ICU/ward floor consists of Apple Mac Pro’s and iMAC systems‚ Cisco 1250 series wireless access points and one HP Model 4350 printer. The information technology data center contains a hospital HIS computer system‚ a Windows exchange server‚ several data center workstations‚ a RAS server and an Internet server. (Univ of Phoenix‚ 2012). Internal Data
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headers and trailers? D. Frame(Your Answer) 7. Which OSI layer defines the functions of logical network-wide addressing and routing? D. Layer 4(Your Answer) 8. Which OSI layer defines the standards for cabling and connectors? A. Layer 1 9. Which OSI layer defines the standards for data formats and encryption? D. Layer 6(Your Answer) 10. Which of the following terms are not valid terms for the names of the seven OSI layers? C. Transmission(Your Answer) E. Internet(Your
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Reviewer DataCom: Chapter 1-5 Chapter 1: Intranet- Restricted group on a company and only allows internal 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
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ENTERPRISES NETWORK END TO END SOLUTION Submitted for the partial fulfillment of the Degree Of Bachelor of Technology (Computer Science and Engineering) Submitted by: XXXXXXXXX YYYYYY ZZZZZZZZ Submitted to: XXXXXXXXXXXX Training Co-ordinator CSE Department ------------------------------------------------- -------------------------------------------------
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Course Syllabus College of Information Systems & Technology NTC/249 Version 2 Wide Area Networking Concepts Copyright © 2013 by University of Phoenix. All rights reserved. Course Description This course covers Wide Area Networking concepts and its interface with metropolitan area networks (MAN) and local area networks (LAN). The course will cover telecommunication technologies‚ backbone technologies‚ hardware device protocol‚ hardware selection and usage‚ and basic WAN security considerations
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Question-3 6 Question-4 7 Question-5 8 Question-6 9 Question-7 10 Question-8 11 Question-1 Discuss the two basic “media access control” methods for shared media used in the TCP/IP suite. ANSWER: In the Open Systems Interconnection (OSI) model of communication‚ the Media Access Control layer is one of two sub layers of the Data Link Control layer and is concerned with sharing the physical connection to the network among several computers. Each computer has its own unique MAC address.
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DATA COMMUNICATION (Basics of data communication‚ OSI layers.) K.K.DHUPAR SDE (NP-II) ALTTC ALTTC/NP/KKD/Data Communication 1 Data Communications History • 1838: Samuel Morse & Alfred Veil Invent Morse Code Telegraph System • 1876: Alexander Graham Bell invented Telephone • 1910:Howard Krum developed Start/Stop Synchronisation ALTTC/NP/KKD/Data Communication 2 History of Computing • 1930: Development of ASCII Transmission Code • 1945: Allied Governments develop the First Large Computer
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products The OSI Model’s Seven Layers Defined and Functions ExplainedArticle ID: 103884This article was previously published under Q103884Expand all | Collapse allOn This Page * SUMMARY * PHYSICAL LAYER * DATA LINK LAYER * NETWORK LAYER * Communications Subnet * TRANSPORT LAYER * End-to-end layers * SESSION LAYER * PRESENTATION LAYER * APPLICATION LAYER * Properties * Give FeedbackSUMMARYThe Open Systems Interconnect (OSI) model has seven layers
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