QoS Guarantee in Wirless Network
... – The data is collected by portable devices, and may stay (and be searched) on the devices: • Urban sensing (vehicle, people) – Multiple hops - to other mobiles of to the Access Point – This creates new challenges • Distributed index (ie, publish/subscribe) to find the data • Data sharing among mobi ...
... – The data is collected by portable devices, and may stay (and be searched) on the devices: • Urban sensing (vehicle, people) – Multiple hops - to other mobiles of to the Access Point – This creates new challenges • Distributed index (ie, publish/subscribe) to find the data • Data sharing among mobi ...
William Stallings, Cryptography and Network Security 3/e
... • The outside router advertises only the existence of the screened subnet to the Internet; therefore, the internal network is invisible to the Internet. • Similarly, the inside router advertises only the existence of the screened subnet to the internal network; therefore, the systems on the inside n ...
... • The outside router advertises only the existence of the screened subnet to the Internet; therefore, the internal network is invisible to the Internet. • Similarly, the inside router advertises only the existence of the screened subnet to the internal network; therefore, the systems on the inside n ...
CH01-Testbank-NetSec5e
... system in order to attain the applicable objectives of preserving the integrity, availability, and confidentiality of information system resources". 2. Three key objectives that are at the heart of computer security are: confidentiality, availability, and _________ . 3. An intelligent act that is ...
... system in order to attain the applicable objectives of preserving the integrity, availability, and confidentiality of information system resources". 2. Three key objectives that are at the heart of computer security are: confidentiality, availability, and _________ . 3. An intelligent act that is ...
Chapter 1 An Introduction to Networking
... – Log in using the username: CIS 1140 or ATCStudent1 – *Enter the password: student ...
... – Log in using the username: CIS 1140 or ATCStudent1 – *Enter the password: student ...
Networks - ZSIS-ITGS
... Security Security plays an important and necessary role in many parts of our lives. In the computing world it is used to protect data. Whether you like it or not, you are currently a stakeholder in various computer networks around you. You may not know which ones or how, but the fact that you are, ...
... Security Security plays an important and necessary role in many parts of our lives. In the computing world it is used to protect data. Whether you like it or not, you are currently a stakeholder in various computer networks around you. You may not know which ones or how, but the fact that you are, ...
Wired and Wireless Networks
... hubs can suffer performance slowdown if computers heavily utilize the network simultaneously. Use Ethernet switches instead of hubs to avoid this problem; a switch costs little more than a hub. Wireless networks using 802.11b support a maximum bandwidth of 11 Mbps, roughly the same as that of old, ...
... hubs can suffer performance slowdown if computers heavily utilize the network simultaneously. Use Ethernet switches instead of hubs to avoid this problem; a switch costs little more than a hub. Wireless networks using 802.11b support a maximum bandwidth of 11 Mbps, roughly the same as that of old, ...
Cybersecurity Chapter 3 Test Review
... that traffic to the corporate intranet is secure using HTTPS. He configures the firewall to deny traffic to port 80. Now users cannot connect to the intranet even through HTTPS. Which of the following is MOST likely causing the issue? The web server is configured on the firewall’s ...
... that traffic to the corporate intranet is secure using HTTPS. He configures the firewall to deny traffic to port 80. Now users cannot connect to the intranet even through HTTPS. Which of the following is MOST likely causing the issue? The web server is configured on the firewall’s ...
Najam_Resume_for_Job..
... Administering & designing LANs, WANs internet/intranet, and remote site networks. Communicating and negotiating with users, specialists, other staff and suppliers. Network connectivity troubleshooting, ping, tracert, telnet. Responsible for communication protocols, configuration, integration & secur ...
... Administering & designing LANs, WANs internet/intranet, and remote site networks. Communicating and negotiating with users, specialists, other staff and suppliers. Network connectivity troubleshooting, ping, tracert, telnet. Responsible for communication protocols, configuration, integration & secur ...
IEEE International Conference on Network Protocols
... covering all aspects of network protocol research, including design, analysis, specification, verification, implementation, and performance. ICNP 2016, the 24th annual edition, will be held in Singapore from Nov. 8-11, 2016. Papers with significant research contributions to the field of network prot ...
... covering all aspects of network protocol research, including design, analysis, specification, verification, implementation, and performance. ICNP 2016, the 24th annual edition, will be held in Singapore from Nov. 8-11, 2016. Papers with significant research contributions to the field of network prot ...
QlikView Components and Configurations
... • AccessPoint sends user/group info to QVS to receive document list • When a document is opened user/group info is also sent to QVS to receive a ticket. Depending on client, this ticket is either linked to a session id (Ajax) or sent to the client to be attached to the qvp-protocol (Plugin) ...
... • AccessPoint sends user/group info to QVS to receive document list • When a document is opened user/group info is also sent to QVS to receive a ticket. Depending on client, this ticket is either linked to a session id (Ajax) or sent to the client to be attached to the qvp-protocol (Plugin) ...
98-367 Title - Test4actual
... network. Mark has been assigned a project to track who tries to log into the system and the time of the day at which the attempts occur. He is also required to create a system to track when confidential files are opened and who is trying to open it. Now, Mark logs when someone is not able to make a ...
... network. Mark has been assigned a project to track who tries to log into the system and the time of the day at which the attempts occur. He is also required to create a system to track when confidential files are opened and who is trying to open it. Now, Mark logs when someone is not able to make a ...
Communication and Network - International University of Japan
... Network Data Security Encryption converts an original message into a form that can be understood only by the intended receiver Encryption key is applied to a set of unencrypted text to produce encrypted text Encryption algorithm: symmetric versus asymmetric algorithm. RSA is a symmetric algorithm ...
... Network Data Security Encryption converts an original message into a form that can be understood only by the intended receiver Encryption key is applied to a set of unencrypted text to produce encrypted text Encryption algorithm: symmetric versus asymmetric algorithm. RSA is a symmetric algorithm ...
Introduction to Communication Systems and Networks
... n Worldwide Interoperability for Microwave Access n Provides wireless transmission of data from point-tomultipoint links to portable and fully mobile internet access (up to 3 Mbit/s) n The intent is to deliver the last mile wireless broadband access as an alternative to cable and DSL n Based ...
... n Worldwide Interoperability for Microwave Access n Provides wireless transmission of data from point-tomultipoint links to portable and fully mobile internet access (up to 3 Mbit/s) n The intent is to deliver the last mile wireless broadband access as an alternative to cable and DSL n Based ...
Terms and QuesAnswers Chap009
... A system in which computing power is located and shared at different locations. Converts text-based addresses to IP addresses The most common way in which nodes can be connected to one another and communications can be controlled. A modem that stands apart from the computer and typically is connecte ...
... A system in which computing power is located and shared at different locations. Converts text-based addresses to IP addresses The most common way in which nodes can be connected to one another and communications can be controlled. A modem that stands apart from the computer and typically is connecte ...
Spanning Tree
... logins down - If there is a loop in your network you may not know about it if you don't check your switches *** Recommend using “Rapid Spanning Tree Protocol” if you are going to use this *** ...
... logins down - If there is a loop in your network you may not know about it if you don't check your switches *** Recommend using “Rapid Spanning Tree Protocol” if you are going to use this *** ...
coms3995 - Computer Science, Columbia University
... • cf. function & object abstraction (“information hiding”) – abstract data type ...
... • cf. function & object abstraction (“information hiding”) – abstract data type ...
ex3-7A-o-can
... • An access point is a Layer 2 device that functions like an 802.3 Ethernet hub. • Connects wireless clients (or stations) to the wired LAN. • Client devices communicate with the AP – not each other. • Converts the TCP/IP data packets from their 802.11 frame encapsulation to the 802.3 Ethernet frame ...
... • An access point is a Layer 2 device that functions like an 802.3 Ethernet hub. • Connects wireless clients (or stations) to the wired LAN. • Client devices communicate with the AP – not each other. • Converts the TCP/IP data packets from their 802.11 frame encapsulation to the 802.3 Ethernet frame ...
CV - Electrical and Computer Engineering
... characteristic of mm wave links, and employs memory and learning to achieve implicit transmit coordination in the network. 60 GHz millimeter wave wireless personal area networks (WPANs) We proposed a cross-layer modeling methodology and designed a directional multihop WPAN architecture for efficient ...
... characteristic of mm wave links, and employs memory and learning to achieve implicit transmit coordination in the network. 60 GHz millimeter wave wireless personal area networks (WPANs) We proposed a cross-layer modeling methodology and designed a directional multihop WPAN architecture for efficient ...
Chapter01Outline
... description: star/hierarchical; bus; mesh; ring; wireless. 4.10. Given a troubleshooting scenario involving a network with a particular physical topology (i.e., bus, star/hierarchical, mesh, ring, and wireless) an including a network diagram, identify the network area affected and the cause of the p ...
... description: star/hierarchical; bus; mesh; ring; wireless. 4.10. Given a troubleshooting scenario involving a network with a particular physical topology (i.e., bus, star/hierarchical, mesh, ring, and wireless) an including a network diagram, identify the network area affected and the cause of the p ...
Minimum Cost Blocking Problem in Multi
... protocols in terms of resiliency against blocking and node isolation-type attacks, especially in the wireless networks domain. • Multi-path protocols for WMNs make it extremely hard for an adversary to efficiently launch such attacks. This paper is an attempt to model the theoretical hardness of att ...
... protocols in terms of resiliency against blocking and node isolation-type attacks, especially in the wireless networks domain. • Multi-path protocols for WMNs make it extremely hard for an adversary to efficiently launch such attacks. This paper is an attempt to model the theoretical hardness of att ...
networking fundamentals
... Firewalls are systems that establish access control policies among networks. They can block information from entering a network or from getting out of that network, they can permit different users to perform different kinds of operations, according to the user's authorizations. Networks for Beginner ...
... Firewalls are systems that establish access control policies among networks. They can block information from entering a network or from getting out of that network, they can permit different users to perform different kinds of operations, according to the user's authorizations. Networks for Beginner ...
New Hampshire Department of Transportation I
... point-to-point microwave analog and time-division multiplexing (TDM) network that existed on 20 mountaintop sites throughout the state. Being one of the first states to integrate multiple stakeholders using existing traffic management protocols and configurations into a single shared wireless networ ...
... point-to-point microwave analog and time-division multiplexing (TDM) network that existed on 20 mountaintop sites throughout the state. Being one of the first states to integrate multiple stakeholders using existing traffic management protocols and configurations into a single shared wireless networ ...
Cybersecurity and Information Assurance PPT
... granting access and restricting access • Controls how users and systems communicate and interact with other systems and resources • First line of defense • Authenticate before allowing access to ...
... granting access and restricting access • Controls how users and systems communicate and interact with other systems and resources • First line of defense • Authenticate before allowing access to ...
Wireless security
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.