Corporate Design PowerPoint Basic Templates
... Commissioning LAN Preconditions The controller is set up (bus address, power supply, ….) OZS164 basic settings have been made (language, date, time, user accounts, device list) DSL broadband router is set up and has Internet access OZS164 is connected to PC via USB (also see „commissioning“ ...
... Commissioning LAN Preconditions The controller is set up (bus address, power supply, ….) OZS164 basic settings have been made (language, date, time, user accounts, device list) DSL broadband router is set up and has Internet access OZS164 is connected to PC via USB (also see „commissioning“ ...
Wireless LAN Networking
... or home. Laptop users have the freedom to roam anywhere in the office building or home without having to hunt down a connector cable or available jack. Every room in a wireless home or office can be “connected” to the network, so adding more users and growing a network can be as simple as installing ...
... or home. Laptop users have the freedom to roam anywhere in the office building or home without having to hunt down a connector cable or available jack. Every room in a wireless home or office can be “connected” to the network, so adding more users and growing a network can be as simple as installing ...
File2
... One disadvantage of a ring network is that if a network device fails (such as a PC or a server), the devices downstream from the failed device cannot communicate with the network The physical wiring can resemble a star pattern using a central device called Multistation Access Unit (MAU) wiring w ...
... One disadvantage of a ring network is that if a network device fails (such as a PC or a server), the devices downstream from the failed device cannot communicate with the network The physical wiring can resemble a star pattern using a central device called Multistation Access Unit (MAU) wiring w ...
Intro to Internet-services from Security Standpoint
... network spanning across two or more buildings: it is easier to install and maintain antennas on top to link different building then cables underground. – Home or small organization wireless LAN, so no one can get anything meaningful from the radio waves it’s being run on. October 22, 2002 ...
... network spanning across two or more buildings: it is easier to install and maintain antennas on top to link different building then cables underground. – Home or small organization wireless LAN, so no one can get anything meaningful from the radio waves it’s being run on. October 22, 2002 ...
View/Open
... One of the oldest and still most common transmission media is twisted pair. A twisted pair consists of two insulated copper wires, typically about 1 mm thick. The wires are twisted together in a helical form, just like a DNA molecule. Twisting is done because two parallel wires constitute a fine a ...
... One of the oldest and still most common transmission media is twisted pair. A twisted pair consists of two insulated copper wires, typically about 1 mm thick. The wires are twisted together in a helical form, just like a DNA molecule. Twisting is done because two parallel wires constitute a fine a ...
What is a Network? - ITCK
... • In its broadest sense, a network consists of two or more entities, or objects , sharing resources and information. • Those networks are everywhere. You have grown accustomed to working with them, possibly without even knowing it. For example: You or Your Father, Mother, Sister, Brother. • The huma ...
... • In its broadest sense, a network consists of two or more entities, or objects , sharing resources and information. • Those networks are everywhere. You have grown accustomed to working with them, possibly without even knowing it. For example: You or Your Father, Mother, Sister, Brother. • The huma ...
Lecture note 13
... • Destination address (DA): The final destination address of the MAC service data unit (MSDU). • Source address (SA): The address of the MAC entity that initiated the MSDU transmission. • Receiver address (RA): The address of the access point that is to receive the frame next. • Transmitter address ...
... • Destination address (DA): The final destination address of the MAC service data unit (MSDU). • Source address (SA): The address of the MAC entity that initiated the MSDU transmission. • Receiver address (RA): The address of the access point that is to receive the frame next. • Transmitter address ...
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... has a radio antenna. On laptops with built-in wireless networking, this antenna may be internal. Wireless antennas act as both transmitters and receivers. The WAP is essentially a wireless bridge (or switch, as multiple end devices can connect simultaneously). It operates by connecting wireless clie ...
... has a radio antenna. On laptops with built-in wireless networking, this antenna may be internal. Wireless antennas act as both transmitters and receivers. The WAP is essentially a wireless bridge (or switch, as multiple end devices can connect simultaneously). It operates by connecting wireless clie ...
omnet-tutorial - edited
... Easy to configure using .ini file Batch execution of the same simulation for ...
... Easy to configure using .ini file Batch execution of the same simulation for ...
Instructor`s Manual to Accompany
... TCP/IP Protocol Suite One of the most important skills is a strong knowledge of the foundation upon which network communications rests, namely Transmission Control Protocol/Internet Protocol (TCP/IP). Understanding TCP/IP concepts helps effectively troubleshoot computer network problems and diagnose ...
... TCP/IP Protocol Suite One of the most important skills is a strong knowledge of the foundation upon which network communications rests, namely Transmission Control Protocol/Internet Protocol (TCP/IP). Understanding TCP/IP concepts helps effectively troubleshoot computer network problems and diagnose ...
Chapter 5 Overview of Network Services
... • Point-to-Point Protocol (PPP) establishes a TCP/IP link between two computers using a modem. • A PPP connection is designed to be in use for only short periods of time because it is not considered an “always-on” Internet connection. • There are two ways to create a PPP connection. • One way to con ...
... • Point-to-Point Protocol (PPP) establishes a TCP/IP link between two computers using a modem. • A PPP connection is designed to be in use for only short periods of time because it is not considered an “always-on” Internet connection. • There are two ways to create a PPP connection. • One way to con ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... Adhoc networks came into existence when more than two wireless mobile nodes accepts to pass packets to each other .In MANET, [AODV] Adhoc on Demand Distance Vector routing protocol is frequently used. Popularity, on networking motivated the development of adhoc mobile networks .Adhoc mobile network ...
... Adhoc networks came into existence when more than two wireless mobile nodes accepts to pass packets to each other .In MANET, [AODV] Adhoc on Demand Distance Vector routing protocol is frequently used. Popularity, on networking motivated the development of adhoc mobile networks .Adhoc mobile network ...
Introduction to IT Security - Virginia Alliance for Secure Computing
... Security Mechanism: A mechanism that is designed to detect, prevent or recover from a security attack. ...
... Security Mechanism: A mechanism that is designed to detect, prevent or recover from a security attack. ...
Exploration_LAN_Switching_Chapter7
... Wi-Fi certification is provided by the Wi-Fi Alliance (http://www.wi-fi.org), a global, nonprofit, industry trade association devoted to promoting the growth and acceptance of WLANs. Standards ensure interoperability between devices made by different manufacturers. Internationally, the three key ...
... Wi-Fi certification is provided by the Wi-Fi Alliance (http://www.wi-fi.org), a global, nonprofit, industry trade association devoted to promoting the growth and acceptance of WLANs. Standards ensure interoperability between devices made by different manufacturers. Internationally, the three key ...
lesson05 - Seneca - School of Information & Communications
... • By default, two NPS Network Policies are preconfigured in Windows Server 2008. • The first default policy is Connections To Microsoft Routing And Remote Access Server, which is configured to match every remote access connection to the Routing and Remote Access service. • When Routing and Remote Ac ...
... • By default, two NPS Network Policies are preconfigured in Windows Server 2008. • The first default policy is Connections To Microsoft Routing And Remote Access Server, which is configured to match every remote access connection to the Routing and Remote Access service. • When Routing and Remote Ac ...
Chapter 10 - Computer Science Technology
... • Virus protection for servers and desktop computers is a must • There should be policies aimed at preventing viruses from being downloaded or spread • Backup procedures for all data that can’t be easily reproduced should be in place, and a disaster recovery procedure must be devised • Security is a ...
... • Virus protection for servers and desktop computers is a must • There should be policies aimed at preventing viruses from being downloaded or spread • Backup procedures for all data that can’t be easily reproduced should be in place, and a disaster recovery procedure must be devised • Security is a ...
Network Security Parameter Analysis Using Simulation Approach
... nodes that participate in the network to maximize their own benefit by using network resources while saving their own resources. Whereas Malicious nodes directly attack a network by disrupting its normal operation. Packet dropping is a passive attack which can result in repeated retransmissions, whi ...
... nodes that participate in the network to maximize their own benefit by using network resources while saving their own resources. Whereas Malicious nodes directly attack a network by disrupting its normal operation. Packet dropping is a passive attack which can result in repeated retransmissions, whi ...
Understand the Concepts of the Internet, Intranet, and
... appointed an MIT scientist named John Licklider to lead it. He had just published his first memorandum on the "Galactic Network" concept ... a futuristic vision where computers would be networked together and would be accessible to everyone. ...
... appointed an MIT scientist named John Licklider to lead it. He had just published his first memorandum on the "Galactic Network" concept ... a futuristic vision where computers would be networked together and would be accessible to everyone. ...
How a Wireless NetWorks
... pair wires that connect each home to the central-office telephone switch at each end, and all connecting wires and switches in-between. • Rules – Rules, or protocols, define how something is accomplished. At a presentation such as this, for example, the usual protocol is that a listener will raise h ...
... pair wires that connect each home to the central-office telephone switch at each end, and all connecting wires and switches in-between. • Rules – Rules, or protocols, define how something is accomplished. At a presentation such as this, for example, the usual protocol is that a listener will raise h ...
A Novel Architecture for Searching Items in Wireless Personal Area
... developed for the growth of WLAN. In addition, there are also many standard protocols are available for wireless connectivity. Wireless Personal Area Network (WPAN) has been introduced after WLAN of low cost [1]. WPAN is a low range network. It serves to interconnect all the ordinary computing and c ...
... developed for the growth of WLAN. In addition, there are also many standard protocols are available for wireless connectivity. Wireless Personal Area Network (WPAN) has been introduced after WLAN of low cost [1]. WPAN is a low range network. It serves to interconnect all the ordinary computing and c ...
IOSR Journal of Electronics and Communication Engineering (IOSRJECE)
... WiMAX (Worldwide Interoperability for Microwave Access) was formed in April 2001, in anticipation of the publication of the original 10-66 GHz IEEE 802.16 specifications. WiMAX is a high throughput packet data transfer technology that supports both delay tolerant, burst-based services like web brows ...
... WiMAX (Worldwide Interoperability for Microwave Access) was formed in April 2001, in anticipation of the publication of the original 10-66 GHz IEEE 802.16 specifications. WiMAX is a high throughput packet data transfer technology that supports both delay tolerant, burst-based services like web brows ...
lec1
... – Byzantine faults are attempted security violations – usually limited by not knowing some secret keys ...
... – Byzantine faults are attempted security violations – usually limited by not knowing some secret keys ...
Document
... Why is security more of a concern in wireless? No inherent physical protection – Physical connections between devices are replaced by logical associations – Don’t need physical access to the network infrastructure (cables, hubs, routers, etc.) for xmitting messages Wireless broadcast transmissi ...
... Why is security more of a concern in wireless? No inherent physical protection – Physical connections between devices are replaced by logical associations – Don’t need physical access to the network infrastructure (cables, hubs, routers, etc.) for xmitting messages Wireless broadcast transmissi ...
An integrated approach based on cross
... portable digital devices have become increasingly popular among businesses and consumers. A broadband mobile wireless access network is therefore widely envisioned to have tremendous market potential. When designing a broadband mobile wireless network, it is important to keep in mind its special req ...
... portable digital devices have become increasingly popular among businesses and consumers. A broadband mobile wireless access network is therefore widely envisioned to have tremendous market potential. When designing a broadband mobile wireless network, it is important to keep in mind its special req ...
Wireless security
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Wireless security is the prevention of unauthorized access or damage to computers using wireless networks. The most common types of wireless security are Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). WEP is a notoriously weak security standard. The password it uses can often be cracked in a few minutes with a basic laptop computer and widely available software tools. WEP is an old IEEE 802.11 standard from 1999, which was outdated in 2003 by WPA, or Wi-Fi Protected Access. WPA was a quick alternative to improve security over WEP. The current standard is WPA2; some hardware cannot support WPA2 without firmware upgrade or replacement. WPA2 uses an encryption device that encrypts the network with a 256-bit key; the longer key length improves security over WEP.Many laptop computers have wireless cards pre-installed. The ability to enter a network while mobile has great benefits. However, wireless networking is prone to some security issues. Hackers have found wireless networks relatively easy to break into, and even use wireless technology to hack into wired networks. As a result, it is very important that enterprises define effective wireless security policies that guard against unauthorized access to important resources. Wireless Intrusion Prevention Systems (WIPS) or Wireless Intrusion Detection Systems (WIDS) are commonly used to enforce wireless security policies.The risks to users of wireless technology have increased as the service has become more popular. There were relatively few dangers when wireless technology was first introduced. Hackers had not yet had time to latch on to the new technology, and wireless networks were not commonly found in the work place. However, there are many security risks associated with the current wireless protocols and encryption methods, and in the carelessness and ignorance that exists at the user and corporate IT level. Hacking methods have become much more sophisticated and innovative with wireless access. Hacking has also become much easier and more accessible with easy-to-use Windows- or Linux-based tools being made available on the web at no charge.Some organizations that have no wireless access points installed do not feel that they need to address wireless security concerns. In-Stat MDR and META Group have estimated that 95% of all corporate laptop computers that were planned to be purchased in 2005 were equipped with wireless cards. Issues can arise in a supposedly non-wireless organization when a wireless laptop is plugged into the corporate network. A hacker could sit out in the parking lot and gather information from it through laptops and/or other devices, or even break in through this wireless card–equipped laptop and gain access to the wired network.