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lecture13_2014
lecture13_2014

... C. After you have a plan, start from extracting the necessary data and decide on the relevant tools to use at the first step. When running a tool make sure to summarize the results and extract the relevant information you need to answer your question, it is recommended to save the raw data for your ...
Chapter One - Villanova University
Chapter One - Villanova University

... Data Communications and Computer Networks: A Business User's Approach, Fifth Edition ...
Networking and Other Equipment > Network Interface Cards - L-com
Networking and Other Equipment > Network Interface Cards - L-com

... The Linksys EtherFast 10/100Mbps LAN Card is a high performance network adapter for desktop computers with 32-bit PCI expansion slots. The card's 10/100Mbps combo RJ45 port automatically detects a network's maximum speed and adjusts itself accordingly. This PC card also features Wake-OnLAN (WOL) eve ...
Lecture Note Ch.2
Lecture Note Ch.2

... time with port addresses a, b, and c. The receiving computer is running two processes at this time with port addresses j and k. Process a in the sending computer needs to communicate with process j in the receiving computer. Note that although physical addresses change from hop to hop, logical and p ...
CH 2 Packet Filtering
CH 2 Packet Filtering

... - Packet headers are small segments of information that are stuck at the beginning of a packet to identify it - Packets are directed, or routed, by the values that are located in their packet headers  Source address  Destination address  Port number of the protocol with which they are communicati ...
Soft Sensing-Based Multiple Access for Cognitive Radio Networks
Soft Sensing-Based Multiple Access for Cognitive Radio Networks

... errors on the performance of cognitive radio networks. While the issue of spectrum sensing errors has been investigated at the physical layer [10], [11], [12], [13], [14], cognitive multiple access design in the presence of sensing errors has received little attention. To mitigate the negative impac ...
Mobilink Software User Guide - cdma-mobi.com.ua
Mobilink Software User Guide - cdma-mobi.com.ua

... SMS Messaging charges and character limit are network operator dependent. Contact your network operator for details. ...
UMTS
UMTS

... • Flexible channel bandwidths ranging from 1.4 MHz to 20 MHz (UMTS: static bandwidth of 5 MHz per channel); therefore better adaptation to user requirements • Data rates: up to 300 MBit/s downlink and 75 MBit/s uplink; very low latency under 5 ms • Official standard with implementations by several p ...
1. When a collision occurs in a network using CSMA/CD, how do
1. When a collision occurs in a network using CSMA/CD, how do

... A random delay is used to ensure a collision-free link. A random delay value for each device is assigned by the manufacturer. A standard delay value could not be agreed upon among networking device vendors. A random delay helps prevent the stations from experiencing another collision during the tran ...
Diapositiva 1
Diapositiva 1

... with different configurations, but always with two new equipment and reusing the previous switch/router.  We chose the more advantageous: separated L2 and L3 equipment in one node, same equipment in the other node. ...
Chapter 07.ppt
Chapter 07.ppt

... Nodes over a large area Often uses common carrier lines Originally developed for mainframe networks Many functions taken over by LANs Still exist for many applications ...
NETWORK STRUCTURES
NETWORK STRUCTURES

... Provides connections and routing of packets in the communication network. Includes handling the address of outgoing packets, decoding the address of incoming packets, and maintaining routing information for proper response to ...
attacks in mobile adhoc networks: a survey
attacks in mobile adhoc networks: a survey

... [email protected], ‡ [email protected], ‡ [email protected] ...
Chapter4
Chapter4

...  You can use online “IP address locator” to find out where a packet comes from ...
The Center for Autonomic Computing
The Center for Autonomic Computing

... Alice’s public keys Bob’s public keys Carol’s public key Social network Information system ...
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... • At the early stage of the worm, only limited worm samples. • Host based sensors can only cover limited IP space, which has scalability issues. Thus they might not be able to detect the worm in its early stage. ...
EQ23854856
EQ23854856

... [2]. Using the information captured by the packet sniffer an administrator can identify erroneous packets and use the data to pinpoint bottlenecks and help maintain efficient network data transmission. This is unlike standard network hosts that only receive traffic sent specifically to them. The sec ...
papers/Win2K_1Gbps
papers/Win2K_1Gbps

... high performance software written at the UW, a WindowsNT workstation on the Stanford campus packetized a studio-quality HDTV feed and sent it to a WindowsNT workstation at the University of Washington in Seattle where it was fed into Sony HDCAM decoders for display to a live audience in Meany Theate ...
SWOON: A Testbed for Secure Wireless Overlay Networks
SWOON: A Testbed for Secure Wireless Overlay Networks

... Sometimes it is also insufficient to use network simulators directly since these simulators, abstracting some system attributes, do not model the bottlenecks from experimental nodes, such as CPUs, buses, devices and drivers. The SWOON (Secure Wireless Overlay Observation Network) testbed is an emula ...
Technology Note: Internetworking Products
Technology Note: Internetworking Products

... and to share resources, such as files, printers, modems, and other peripherals. ( Larger networks will sometimes include long-distance connections, and may be referred to as WANs, or wide area networks. A brief summary of LAN technologies is included in Exhibit 1) Although sending email and sharing ...
Ch. 8 Circuit Switching
Ch. 8 Circuit Switching

... telephone network (PSTN). • Fig. 10.3 illustrates two possible connections over the PSTN. ...
Zigbee - K.f.u.p.m. OCW
Zigbee - K.f.u.p.m. OCW

...  There are a verity of standards that address mid to high data rates for voice, PC LANs, video, etc. However, up till now there hasn’t been a wireless network standard that meets the unique needs of sensors and control devices. ...
UNIX SVR4 SYSTEM
UNIX SVR4 SYSTEM

... service requests from computers on a TCP/IP network. • When a connection request arrives, inted spawns the server process and passes the network connection to it. ...
Chapter 07 - Computer Science
Chapter 07 - Computer Science

... Examples: television and radio signals, voice, ...
Bright Lines
Bright Lines

... LANs offer computer users many advantages. ...
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Piggybacking (Internet access)

Piggybacking on Internet access is the practice of establishing a wireless Internet connection by using another subscriber's wireless Internet access service without the subscriber's explicit permission or knowledge. It is a legally and ethically controversial practice, with laws that vary by jurisdiction around the world. While completely outlawed or regulated in some places, it is permitted in others.A customer of a business providing hotspot service, such as a hotel or café, is generally not considered to be piggybacking, though non-customers or those outside the premises who are simply in reach may be. Many such locations provide wireless Internet access as a free or paid-for courtesy to their patrons or simply to draw people to the area. Others near the premises may be able to gain access.Piggybacking is distinct from wardriving, which involves only the logging or mapping of the existence of access points.
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