Networking.2
... Wireless Networks Types BSS (Basic Service Set) – Configuration when multiple devices connect to an access point. ESS (Extended Service Set) – The network design when multiple access points connect to the same main network. SSID (Service Set Identifier) – A set of 32 alpha numeric characters ...
... Wireless Networks Types BSS (Basic Service Set) – Configuration when multiple devices connect to an access point. ESS (Extended Service Set) – The network design when multiple access points connect to the same main network. SSID (Service Set Identifier) – A set of 32 alpha numeric characters ...
Mobile Applications and Web Services
... − Contiki realises the separation of concern of the basic system support form the rest of the dynamically loadable and programmable services (called processes). − The services communicate with each other through the kernel by posting events. − The ContikiOS kernel does not provide any hardware abstr ...
... − Contiki realises the separation of concern of the basic system support form the rest of the dynamically loadable and programmable services (called processes). − The services communicate with each other through the kernel by posting events. − The ContikiOS kernel does not provide any hardware abstr ...
Security in Automotive Domain Using Secure Socket Layer
... oscillating device. Nodes can be added to the LIN network scientific and medical (ISM) band at 2.45 GHz. It enables without requiring hardware or software changes in other wireless ad-hoc networking of various devices like personal slave nodes. And the maximum transmission speed will be digital assi ...
... oscillating device. Nodes can be added to the LIN network scientific and medical (ISM) band at 2.45 GHz. It enables without requiring hardware or software changes in other wireless ad-hoc networking of various devices like personal slave nodes. And the maximum transmission speed will be digital assi ...
Data Encryption Standard - gozips.uakron.edu
... computer Back door – an intentional design element of some software that allows developers of a system to gain access to the application for maintenance or technical problems Rootkits and bots – malicious or legitimate software code that performs functions like automatically retrieving and colle ...
... computer Back door – an intentional design element of some software that allows developers of a system to gain access to the application for maintenance or technical problems Rootkits and bots – malicious or legitimate software code that performs functions like automatically retrieving and colle ...
ReviewSheet Midterm2 Last modified January 7
... 6. In a Frequency Hopping Spread Spectrum (FHSS) technique, each bit to be transmitted by the sender is replaced by its chip code. 7. RIP (Routing Information Protocol) is used inside an autonomous system. 8. RIP is based on distance vector routing. 9. The hopping sequence in FHSS (Frequency Hopping ...
... 6. In a Frequency Hopping Spread Spectrum (FHSS) technique, each bit to be transmitted by the sender is replaced by its chip code. 7. RIP (Routing Information Protocol) is used inside an autonomous system. 8. RIP is based on distance vector routing. 9. The hopping sequence in FHSS (Frequency Hopping ...
Mobile Applications and Web Services
... between the operating system and the application. − Tasks, commands and events are fundamental building blocks of the TinyOS run-time environment. − Tasks are monolithic processes that should be executed until they are complete. − This means they can not be blocked by other tasks but they can be int ...
... between the operating system and the application. − Tasks, commands and events are fundamental building blocks of the TinyOS run-time environment. − Tasks are monolithic processes that should be executed until they are complete. − This means they can not be blocked by other tasks but they can be int ...
Software-Defined Wireless Transport Networks for - 5G
... of unused resource from one operator to another, which is not possible with a local approach. The control and management actions in SDN come from a logically centralized controller, keeping the logic to instruct the underlay devices in order to take actions in the data plane. Assuming a backhaul net ...
... of unused resource from one operator to another, which is not possible with a local approach. The control and management actions in SDN come from a logically centralized controller, keeping the logic to instruct the underlay devices in order to take actions in the data plane. Assuming a backhaul net ...
Review Questions of Switching Networks
... A VLAN is a logically separate IP subnetwork. VLANs allow multiple IP networks and subnets to exist on the same switched network. A VLAN allows a network administrator to create groups of logically networked devices that act as if they are on their own independent network, even if they share a commo ...
... A VLAN is a logically separate IP subnetwork. VLANs allow multiple IP networks and subnets to exist on the same switched network. A VLAN allows a network administrator to create groups of logically networked devices that act as if they are on their own independent network, even if they share a commo ...
Firewalls: An Effective Solution for Internet Security
... costly, and time consuming. It is critical to remember, however, that firewall design and implementation are simply the beginning point of having a firewall. Firewalls that are improperly maintained soon lose their value as security control tools. One of the most important facets of firewall mainten ...
... costly, and time consuming. It is critical to remember, however, that firewall design and implementation are simply the beginning point of having a firewall. Firewalls that are improperly maintained soon lose their value as security control tools. One of the most important facets of firewall mainten ...
Topic 6: Using Networks - St Andrew`s High School
... advantage of networks (and particularly the Internet). Processors - Networks are demanding equipment with very high throughput and need the flexibility to support these applications. Memory Backing Storage - Network storage is simply about storing data so that network clients can access it. The simp ...
... advantage of networks (and particularly the Internet). Processors - Networks are demanding equipment with very high throughput and need the flexibility to support these applications. Memory Backing Storage - Network storage is simply about storing data so that network clients can access it. The simp ...
Wireless Sensor Networks
... Collaborative Processing (2) • In a sensor network, one can remove redundant information in the data through in-network aggregation and compression local to the nodes that generate the data, before shipping it to a remote node. • The amount of nonredundant data that a network generates grows as O(l ...
... Collaborative Processing (2) • In a sensor network, one can remove redundant information in the data through in-network aggregation and compression local to the nodes that generate the data, before shipping it to a remote node. • The amount of nonredundant data that a network generates grows as O(l ...
Security for Internet QoS
... OPEN message, send a KEEPALIVE message – Established: upon successful receiving and checking the KEEPALIVE message, is not ready for data and exchange UPDATE, KEEPALIVE, and NOTIFICATION messages ...
... OPEN message, send a KEEPALIVE message – Established: upon successful receiving and checking the KEEPALIVE message, is not ready for data and exchange UPDATE, KEEPALIVE, and NOTIFICATION messages ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... Since the benefits of co operating networking were recognized [1],[2],several initial attempts on extending cooperative networking to MIMO have been reported [12]-[17].Well tang and hua first considered the optimal relay amplification matrix for the basic three-node MIMO-CN under the assumption that ...
... Since the benefits of co operating networking were recognized [1],[2],several initial attempts on extending cooperative networking to MIMO have been reported [12]-[17].Well tang and hua first considered the optimal relay amplification matrix for the basic three-node MIMO-CN under the assumption that ...
Intelligent Mobility Management Model for Heterogeneous Wireless
... point of attachment and enter into the low signal strength area in a homogeneous wireless network. In a heterogeneous environment, users have an opportunity to access the different technologies networks. A user may be benefited from different network characteristics (coverage, bandwidth, latency, po ...
... point of attachment and enter into the low signal strength area in a homogeneous wireless network. In a heterogeneous environment, users have an opportunity to access the different technologies networks. A user may be benefited from different network characteristics (coverage, bandwidth, latency, po ...
Study on Secure Mobile Communication based on the
... Another method consists of encrypting the data by hooking up IP packets by rooting the smartphone. This method is advantageous in that data can be encrypted for all applications used in the smartphone. But the encrypted data also runs the risk of becoming exposed to malicious software attacks or hac ...
... Another method consists of encrypting the data by hooking up IP packets by rooting the smartphone. This method is advantageous in that data can be encrypted for all applications used in the smartphone. But the encrypted data also runs the risk of becoming exposed to malicious software attacks or hac ...
how to avoid getting on the front pages for the
... certificates, smart cards, and other authentication Authentication is the act of verifying that things (or people) are what (or who) they claim to be. In the physical world, such verification can be accomplished by looking at the object, if it is familiar, or by looking at a picture identification ...
... certificates, smart cards, and other authentication Authentication is the act of verifying that things (or people) are what (or who) they claim to be. In the physical world, such verification can be accomplished by looking at the object, if it is familiar, or by looking at a picture identification ...
DCRS-5750F Dual Stack Ethernet Switch Datasheet Product Overview
... The DCRS-5750F support abundant multicast features. The product support rich multicast features such as IGMPv1/v2/v3 and snooping etc. As the rich application experience, the product support multicast vlan register and multicast receive control and illegal multicast source detect functions. Easy hig ...
... The DCRS-5750F support abundant multicast features. The product support rich multicast features such as IGMPv1/v2/v3 and snooping etc. As the rich application experience, the product support multicast vlan register and multicast receive control and illegal multicast source detect functions. Easy hig ...
Slide 1
... The receiving process only listens at the port intermittently (why?) What happens to data if this process is not yet listening? ...
... The receiving process only listens at the port intermittently (why?) What happens to data if this process is not yet listening? ...
MET Connect Presentation
... SIM Card – We send you your Telstra SIM card provisioned and ready to go You just need to supply the MODEM with 24VDC and Plug a patch lead between your network switch and the MODEM’s Ethernet port and you’re up and running. ...
... SIM Card – We send you your Telstra SIM card provisioned and ready to go You just need to supply the MODEM with 24VDC and Plug a patch lead between your network switch and the MODEM’s Ethernet port and you’re up and running. ...
LAN / WAN / Extranet และ Network Topology แบบต่าง ๆ
... • The star ring topology divides the network into smaller networks each having a concentrator or hub used to connect clients. • Concentrators are joined together using a master concentrator (sometimes called the main hub) in the form of a ring. • The advantage is that network traffic is handled by a ...
... • The star ring topology divides the network into smaller networks each having a concentrator or hub used to connect clients. • Concentrators are joined together using a master concentrator (sometimes called the main hub) in the form of a ring. • The advantage is that network traffic is handled by a ...
Chapter 2: Attackers and Their Attacks
... “You cannot attack what you do not see” is the philosophy behind Network Address Translation (NAT) systems Hides the IP addresses of network devices from attackers Computers are assigned special IP addresses (known as private addresses) ...
... “You cannot attack what you do not see” is the philosophy behind Network Address Translation (NAT) systems Hides the IP addresses of network devices from attackers Computers are assigned special IP addresses (known as private addresses) ...
OSI Security Architecture
... Aspects of Security • The OSI security architecture focuses on 3 aspects: security attacks, mechanisms, and services. 1. Security attack: Any action that compromises the security of information owned by an organization. 2. Security service: A processing or communication service that enhances the sec ...
... Aspects of Security • The OSI security architecture focuses on 3 aspects: security attacks, mechanisms, and services. 1. Security attack: Any action that compromises the security of information owned by an organization. 2. Security service: A processing or communication service that enhances the sec ...
Downloads
... Maintain the ability to make and receive important business phone calls and voicemails through any major catastrophic disasters, storms, power grid failures etc. You have the power to divert your calls wherever you like via the Web Portal. Other popular features included with our products are: ...
... Maintain the ability to make and receive important business phone calls and voicemails through any major catastrophic disasters, storms, power grid failures etc. You have the power to divert your calls wherever you like via the Web Portal. Other popular features included with our products are: ...
answers - Princeton CS
... 4(a) Many enterprise networks only allow registered machines to access the local area network. Some of these networks configure the DHCP server to assign a computer (or MAC address) the same IP address every time it connects to the network. Give one reason why. (3 points) Tracking traffic by IP addr ...
... 4(a) Many enterprise networks only allow registered machines to access the local area network. Some of these networks configure the DHCP server to assign a computer (or MAC address) the same IP address every time it connects to the network. Give one reason why. (3 points) Tracking traffic by IP addr ...
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.