ppt
... Multiple types of service Variety of networks Management of resources Cost-effective Low entry-cost Accountability for resources Where is security? ...
... Multiple types of service Variety of networks Management of resources Cost-effective Low entry-cost Accountability for resources Where is security? ...
UTP
... routers so that any application on any host on any single network can communicate with any application on any other host on any other network in the internet. ...
... routers so that any application on any host on any single network can communicate with any application on any other host on any other network in the internet. ...
The Politics of the Internet
... The Politics of the Internet – Week Two Creation of the World Wide Web Key step in bringing the Internet to the masses was the World Wide Web Invented in CERN by Tim Berners-Lee Idea was to create a way in which documents could be organized on the Internet And could link to each other – with ...
... The Politics of the Internet – Week Two Creation of the World Wide Web Key step in bringing the Internet to the masses was the World Wide Web Invented in CERN by Tim Berners-Lee Idea was to create a way in which documents could be organized on the Internet And could link to each other – with ...
stributed Computing : Current Theories and Current Practices
... networked environment. Although such an environment can be extremely complex, we thankfully have, for most all practical purposes, one network in this environment – the Internet, made up of a standard set of software protocols that are recognized by nearly all computer software creators. Most distri ...
... networked environment. Although such an environment can be extremely complex, we thankfully have, for most all practical purposes, one network in this environment – the Internet, made up of a standard set of software protocols that are recognized by nearly all computer software creators. Most distri ...
Introduction of Electronic Commerce
... • Internet - Packet switched over a physical network • ARPANet (1969) > NSFNet (1985) > WWW (1993) • Protocols govern how applications access the network Feb. 2 & 4, 2009 ...
... • Internet - Packet switched over a physical network • ARPANet (1969) > NSFNet (1985) > WWW (1993) • Protocols govern how applications access the network Feb. 2 & 4, 2009 ...
Slide 1
... An intrusion is any access to data or programs by hackers, criminals, or other unauthorized persons Looking for open ports is one of the most common ways of gaining unauthorized access to a network-based computer A port probe (or port scan) uses automated software to locate computers that have ...
... An intrusion is any access to data or programs by hackers, criminals, or other unauthorized persons Looking for open ports is one of the most common ways of gaining unauthorized access to a network-based computer A port probe (or port scan) uses automated software to locate computers that have ...
Deployment of Broad Band WMAN using Wi
... Seam less Roaming As the mobile client (a notebook or a PDA user) moves within WMAN it remains connected via Ethernet or 802.11 when docked and stays connected with 802.16 when roaming the city or suburbs The goal is to standardize handoffs between heterogeneous networks and support seam less r ...
... Seam less Roaming As the mobile client (a notebook or a PDA user) moves within WMAN it remains connected via Ethernet or 802.11 when docked and stays connected with 802.16 when roaming the city or suburbs The goal is to standardize handoffs between heterogeneous networks and support seam less r ...
Network
... • Satellite are also used are used to quickly send information between two points on Earth that are physically separated by a great distance. • Satellites are also used for services like : • Satellite radio and TV distribution • Satellite Internet services to consumers • Some Internet services also ...
... • Satellite are also used are used to quickly send information between two points on Earth that are physically separated by a great distance. • Satellites are also used for services like : • Satellite radio and TV distribution • Satellite Internet services to consumers • Some Internet services also ...
computer_network_basics
... forwarding: move packets from router’s input to appropriate router output ...
... forwarding: move packets from router’s input to appropriate router output ...
Network Firewall Technologies By: David W Chadwick
... • Application data is unpacked and examined • Harmful content is disposed of • Executables can be removed based on a security policy • Authors of Digitally Signed Code are checked against a trusted list • Text files can be scanned for a list of undesirable ...
... • Application data is unpacked and examined • Harmful content is disposed of • Executables can be removed based on a security policy • Authors of Digitally Signed Code are checked against a trusted list • Text files can be scanned for a list of undesirable ...
Architecture and dependability of large
... commonly use redundant connections between first- and second-level switches, none of the sites use redundant Ethernet connections between nodes and second-level switches, and only one (ReadMostly) uses redundant connections between the collocation facility’s network and the firstlevel switches. Desp ...
... commonly use redundant connections between first- and second-level switches, none of the sites use redundant Ethernet connections between nodes and second-level switches, and only one (ReadMostly) uses redundant connections between the collocation facility’s network and the firstlevel switches. Desp ...
Internetworking
... connects multiple backbones (sometimes referred to as peers). Regional networks are smaller backbones that cover smaller geographical areas (e.g., cities or states) A point of presence (POP) is a machine that is connected to the Internet. ...
... connects multiple backbones (sometimes referred to as peers). Regional networks are smaller backbones that cover smaller geographical areas (e.g., cities or states) A point of presence (POP) is a machine that is connected to the Internet. ...
Overview of Computer Networking
... Packet switching versus circuit switching Packet switching allows more users to use network! 1 Mbit link each user: 100Kbps when “active” active 10% of time circuit-switching: 10 users ...
... Packet switching versus circuit switching Packet switching allows more users to use network! 1 Mbit link each user: 100Kbps when “active” active 10% of time circuit-switching: 10 users ...
Chapter 2 Networks and the Internet
... To connect to the Internet, you log on to your Internet Service Provider (ISP). The ISP connects to another ISP or a backbone provider. One backbone provider connects to another at a Network Access Point (NAP). ...
... To connect to the Internet, you log on to your Internet Service Provider (ISP). The ISP connects to another ISP or a backbone provider. One backbone provider connects to another at a Network Access Point (NAP). ...
Application Note Connecting your installation to the Internet.
... There are two ways to setup the router to allow remote access traffic to pass through it. The first is called port forwarding and the second is called VPN. We will discuss both. Take another look at the riser above. Notice the local network is connected to the LAN of the router. LAN stands for “Loca ...
... There are two ways to setup the router to allow remote access traffic to pass through it. The first is called port forwarding and the second is called VPN. We will discuss both. Take another look at the riser above. Notice the local network is connected to the LAN of the router. LAN stands for “Loca ...
ppt
... – Port number modification requires TCP checksum recalculation • Fragmentation – Fragments should have the same destination • End-to-end connectivity – NAT destroys universal end-to-end reachability – NATted hosts are often unreachable ...
... – Port number modification requires TCP checksum recalculation • Fragmentation – Fragments should have the same destination • End-to-end connectivity – NAT destroys universal end-to-end reachability – NATted hosts are often unreachable ...
Chapter 8 Slides (Modified) File
... • Satellite are also used are used to quickly send information between two points on Earth that are physically separated by a great distance. • Satellites are also used for services like : • Satellite radio and TV distribution • Satellite Internet services to consumers • Some Internet services also ...
... • Satellite are also used are used to quickly send information between two points on Earth that are physically separated by a great distance. • Satellites are also used for services like : • Satellite radio and TV distribution • Satellite Internet services to consumers • Some Internet services also ...
the network and its role in digital imaging and communications in
... be without one. This is especially true for mission critical systems such as PACS servers, not only because damage or disruption of a PACS computer would slow the practice’s workflow and be costly to repair, but also because the medical information contained on the system could be both highly valuabl ...
... be without one. This is especially true for mission critical systems such as PACS servers, not only because damage or disruption of a PACS computer would slow the practice’s workflow and be costly to repair, but also because the medical information contained on the system could be both highly valuabl ...
Packet Switching
... bandwidth shared on demand statistical multiplexing. TDM: each host gets same slot in revolving TDM frame. Introduction ...
... bandwidth shared on demand statistical multiplexing. TDM: each host gets same slot in revolving TDM frame. Introduction ...
Wireless Technologies and Mobile IP
... voice users the TRUE GPRS throughput or data rate may be significantly less than that of the predicted ...
... voice users the TRUE GPRS throughput or data rate may be significantly less than that of the predicted ...
Introduction
... q excessive congestion: packet delay and loss v protocols needed for reliable data transfer, congestion control q Q: How to provide circuit-like behavior? v bandwidth guarantees needed for audio/video apps v still an unsolved problem (chapter 7) Introduction ...
... q excessive congestion: packet delay and loss v protocols needed for reliable data transfer, congestion control q Q: How to provide circuit-like behavior? v bandwidth guarantees needed for audio/video apps v still an unsolved problem (chapter 7) Introduction ...
05/05
... A node X is conditionally independent of its non-descendants given Parents(X). Markov Blanket of X: set consisting of the parents of X, the children of X, and the other parents of the children of X. X is conditionally independent of all other nodes in the network given its Markov ...
... A node X is conditionally independent of its non-descendants given Parents(X). Markov Blanket of X: set consisting of the parents of X, the children of X, and the other parents of the children of X. X is conditionally independent of all other nodes in the network given its Markov ...
VPN and NAT
... that translates addresses in incoming and outgoing datagrams – P = private address – G = globally-valid IP address Organization A’s private network ...
... that translates addresses in incoming and outgoing datagrams – P = private address – G = globally-valid IP address Organization A’s private network ...