Introduction to Computer Networks Spring 2013 Chapter 1 Data Communications and Networks Overview and Protocol Layers Dr. Çağrı Güngör 1 Basic Info about the Course • Course Content (tentative): — Computer networks; network architectures; protocol layers; TCP/IP; principles of Internet; wireless networks; introduction to network management‚ etc.. • Course Objectives: — Understand widely known network protocols‚ communication architectures‚ and wireless networks‚ — Learn TCP/IP and protocol
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Wireless Network A wireless network‚ as its name would suggest‚ is a network of computers and computer peripherals that are connected to each other without wires. This enables ease of communication‚ especially for mobile computing platforms. Further‚ there are a number of other advantages to a wireless network that make them increasingly common in both the workplace and at home. Nearly all wireless networks in the world work on a standard set up by the Institute of Electrical and Electronics
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REAL TIME POWER SYSTEM SECURITY ASSESSMENT USING ARTIFICIAL NEURAL NETWORKS REAL TIME POWER SYSTEM SECURITY ASSESSMENT USING ARTIFICIAL NEURAL NETWORKS Abstract Contingency analysis of a power system is a major activity in power system planning and operation. In general an outage of one transmission line or transformer may lead to over loads in other branches and/or sudden system voltage rise or drop. The traditional approach of security analysis known as exhaustive security analysis involving
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Introduction Network architecture is a combination of topology and protocols. In this paper‚ I will discuss topology‚ which is the defined as the shape of a network or how a network is laid out. Topology also consists of how the different components or nodes of a network are connected and how they communicate with each other. Topologies are either logical or physical. In addition‚ in the sections of this paper‚ I will compare and contrast some different conventional architecture and what types of topologies
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the security features currently employed by the company. Management outlined a comprehensive plan that included a complete hardware refresh‚ security best practices and end user training. Team “C” will devote resources to assess the physical and network security issues and concerns at each Riordan plant. Once those have been identified‚ Team “C” will identify the data security issues and concerns present at each Riordan plant. Finally‚ Team “C” will address web security issues and concerns present
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Network security concepts Network security starts with authenticating‚ commonly with a username and a password. Since this requires just one detail authenticating the user name —i.e. the password— this is sometimes termed one-factor authentication. With two-factor authentication‚ something the user ’has’ is also used (e.g. a security token or ’dongle’‚ an ATM card‚ or a mobile phone); and with three-factor authentication‚ something the user ’is’ is also used (e.g. a fingerprint or retinal scan)
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encompasses the network solution and security considerations is a major consideration for your company. Considering that the company will be expanding from one (1) floor to three (3) floors in the very near future you‚ as the CIO‚ are responsible for the design of the infrastructure and security protocols. You have been tasked with designing a network that is stable‚ redundant‚ and scalable. In addition‚ speed and reliability are important considerations. Assumptions should be drawn regarding network usage
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Social Networks Do the names MySpace‚ Facebook etc. ring a bell? They probably do because they are some of the most popular sites on the internet today. These sites are all called ’social networking’ sites because they help people meet and discuss things online. Each of these social networking sites has its own strengths: MySpace is especially popular among teenagers‚ Facebook is popular with college age people. The common thread between all of these social networks is that they provide a place
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Security Security document: Session 8 Laura Abraham Telecommunications Networks: CIS 313-DL Security will be implemented throughout different areas of the network: The main security will be the Cisco firewall: The IOS firewall works at both the network and application layer. This means that not only are we protected against intrusion at the network layer‚ the firewall will also protect against any application resources that we implement. Different firewall policies can be configured for
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Organizational structures developed from the ancient times of hunters and collectors in tribal organizations through highly royal and clerical power structures to industrial structures and today’s post-industrial structures. [edit] Organizational structure types [edit] Pre-bureaucratic structures Pre-bureaucratic (entrepreneurial) structures lack standardization of tasks. This structure is most common in smaller organizations and is best used to solve simple tasks. The structure is totally centralized
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