L01
... They are built so that users from one location can communicate with users from another location WANs are slower than LANs Often require additional and costly hardware ...
... They are built so that users from one location can communicate with users from another location WANs are slower than LANs Often require additional and costly hardware ...
Ethernet: CSMA/CD (Carrier Sense Multiple Access with Collision
... Ethernet_802.3 (“Novell proprietary”) Ethernet_II (“DIX”) Ethernet_SNAP ...
... Ethernet_802.3 (“Novell proprietary”) Ethernet_II (“DIX”) Ethernet_SNAP ...
In preparation of Workprogramme 2000 IST: overview of status
... switching), commensurate with the expected evolution in user requirements and Internet-related services. ...
... switching), commensurate with the expected evolution in user requirements and Internet-related services. ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... Bandwidth of the links between the remote sites and HQ (IPSec with more Bandwidth scenario). Graphs 9 and 10 illustrate time average in server performance load (tasks/second and requests/second) in the two scenarios (before and after IPSec). the number of tasks and requests handled by the server inc ...
... Bandwidth of the links between the remote sites and HQ (IPSec with more Bandwidth scenario). Graphs 9 and 10 illustrate time average in server performance load (tasks/second and requests/second) in the two scenarios (before and after IPSec). the number of tasks and requests handled by the server inc ...
General Motors Dealer Infrastructure Guidelines
... Encryption: TLS Email encryption is recommended in order to make it more difficult for third parties to read email in transit ...
... Encryption: TLS Email encryption is recommended in order to make it more difficult for third parties to read email in transit ...
Virtual Private Network
... using a dedicated connection such as leased line, a VPN uses “virtual” connections routed though the internet. ...
... using a dedicated connection such as leased line, a VPN uses “virtual” connections routed though the internet. ...
What is wireless networking?
... session participants. Such a description is then used to negotiate the characteristics of the session so that all the devices can participate (negotiation of codecs used to encode media so all participants will be able to decode it). SIP is based on HTTP protocol. SIP is used to carry the descriptio ...
... session participants. Such a description is then used to negotiate the characteristics of the session so that all the devices can participate (negotiation of codecs used to encode media so all participants will be able to decode it). SIP is based on HTTP protocol. SIP is used to carry the descriptio ...
Introduction
... • Are there fundamental characteristics of WLAN traces that do not change with technology (e.g., they apply to future ad hoc networks)? – Study human mobility/behavior for non-wireless traces or nonnetwork traces and compare the characteristics – Suggest another way to investigate such question ...
... • Are there fundamental characteristics of WLAN traces that do not change with technology (e.g., they apply to future ad hoc networks)? – Study human mobility/behavior for non-wireless traces or nonnetwork traces and compare the characteristics – Suggest another way to investigate such question ...
C. Wireless Communications Security
... were viruses specifically targeting programmable logic controller (PLC) and SCADA systems. Even though there are proven and reliable encryption systems designed for industrial use, the overwhelming majority of SCADA systems in use do not use any authentication or encryption methods. In addition, the ...
... were viruses specifically targeting programmable logic controller (PLC) and SCADA systems. Even though there are proven and reliable encryption systems designed for industrial use, the overwhelming majority of SCADA systems in use do not use any authentication or encryption methods. In addition, the ...
TeleGuard 5GHz Point to Multipoint Radio Ethernet
... • SLA enforcement – supports committed information rates (CIR) and maximum information rates (MIR) per user, per direction; packet prioritization with IP TOS, VLAN, DiffServ and UDP/TCP port range classification and graceful degradation in case of congestion Security and Filtering Options • AES 128 ...
... • SLA enforcement – supports committed information rates (CIR) and maximum information rates (MIR) per user, per direction; packet prioritization with IP TOS, VLAN, DiffServ and UDP/TCP port range classification and graceful degradation in case of congestion Security and Filtering Options • AES 128 ...
Detailed Overview of Security and Privacy lecture slides
... It is computationally difficult to determine the private key from the public key, even with knowledge of the ...
... It is computationally difficult to determine the private key from the public key, even with knowledge of the ...
Security & Privacy on the WWW
... It is computationally difficult to determine the private key from the public key, even with knowledge of the ...
... It is computationally difficult to determine the private key from the public key, even with knowledge of the ...
Appendix B Network Basics - Austin Community College
... b) By connecting computers with peripheral devices c) By connecting many home computer devices over one line so that each one can share the Internet connection d) By transmitting radio signals from one computer device to the Internet connection ...
... b) By connecting computers with peripheral devices c) By connecting many home computer devices over one line so that each one can share the Internet connection d) By transmitting radio signals from one computer device to the Internet connection ...
Mobile Computing
... AP2 Mbps in 802.11: up to the Network 2.4 GHz band. AP 802.11b: up to 11 Mbps in the 2.4 GHz band. 802.11a/g: up to 54 Mbps in the 5/2.4 GHz band. 802.11n: up to 220+ Mbps in the 2.4/5 GHz band (two proposals not approved yet). Vendors already selling 802.11pre-n devices. ...
... AP2 Mbps in 802.11: up to the Network 2.4 GHz band. AP 802.11b: up to 11 Mbps in the 2.4 GHz band. 802.11a/g: up to 54 Mbps in the 5/2.4 GHz band. 802.11n: up to 220+ Mbps in the 2.4/5 GHz band (two proposals not approved yet). Vendors already selling 802.11pre-n devices. ...
PPP
... Idle state. The idle state means that the link is not being used. There is no active carrier, and the line is quiet. Establishing link. When one of the end point starts the communication, the connection goes into the establishing state. In this state, options are negotiated between the two parties. ...
... Idle state. The idle state means that the link is not being used. There is no active carrier, and the line is quiet. Establishing link. When one of the end point starts the communication, the connection goes into the establishing state. In this state, options are negotiated between the two parties. ...
Introduction to management of Information Technologies
... 1) Distinguish between Tear-drop and ping-of-death attacks. 2) What is an illicit content attack? What is the difference between a virus, a worm, and a Trojan horse? How could a stand-alone computer or a network be a victim of an illicit content attack? 3) What is an Open Mail server? How could you ...
... 1) Distinguish between Tear-drop and ping-of-death attacks. 2) What is an illicit content attack? What is the difference between a virus, a worm, and a Trojan horse? How could a stand-alone computer or a network be a victim of an illicit content attack? 3) What is an Open Mail server? How could you ...
6.11 Advanced Topics: Networks
... Gigabit Ethernet is being deployed today and the 10 gigabit Ethernet standard was ratified in 2003. Ethernet is codified as IEEE standard 802.3. Computers became thousands of times faster than they were in 1978, but the shared interconnection was no faster for almost 20 years. Hence, past engineers ...
... Gigabit Ethernet is being deployed today and the 10 gigabit Ethernet standard was ratified in 2003. Ethernet is codified as IEEE standard 802.3. Computers became thousands of times faster than they were in 1978, but the shared interconnection was no faster for almost 20 years. Hence, past engineers ...
Advances in Natural and Applied Sciences
... looping (deadlock) problem during reconfiguration situation. It is implemented in the distributed manner, and works at the link level to feed the new routing function in both wire and wireless links in the basic service sets. In 2-layer WNoc architecture, the long distance packets given priority to ...
... looping (deadlock) problem during reconfiguration situation. It is implemented in the distributed manner, and works at the link level to feed the new routing function in both wire and wireless links in the basic service sets. In 2-layer WNoc architecture, the long distance packets given priority to ...
Niagra Falls Bridge Commission Success Story
... agencies cooperating with one another. Not only does the agency span an international border, but it also relies on local law enforcement agencies and other entities in both countries. ...
... agencies cooperating with one another. Not only does the agency span an international border, but it also relies on local law enforcement agencies and other entities in both countries. ...
Chapter 7 Review
... Mobile users in your network report that they frequently lose connectivity with the wireless network on some days, but on other days they don’t have any problems. Which of the following types of attacks could cause this? A. IV B. Wireless jamming C. Replay D. WPA cracking ...
... Mobile users in your network report that they frequently lose connectivity with the wireless network on some days, but on other days they don’t have any problems. Which of the following types of attacks could cause this? A. IV B. Wireless jamming C. Replay D. WPA cracking ...
vpn - BSNL Durg SSA(Connecting India)
... VPNs require an in-depth understanding of public network security issues and proper deployment of precautions Availability and performance depends on factors largely outside of their control Immature standards VPNs need to accommodate protocols other than IP and existing internal network technology ...
... VPNs require an in-depth understanding of public network security issues and proper deployment of precautions Availability and performance depends on factors largely outside of their control Immature standards VPNs need to accommodate protocols other than IP and existing internal network technology ...
LSD1526 - A Distributed Three-hop Routing
... networks and infrastructure wireless networks have been receiving increased attention due to their ultra-high performance. An efficient data routing protocol is important in such networks for high network capacity and scalability. However, most routing protocols for these networks simply combine the ...
... networks and infrastructure wireless networks have been receiving increased attention due to their ultra-high performance. An efficient data routing protocol is important in such networks for high network capacity and scalability. However, most routing protocols for these networks simply combine the ...
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.