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Translation
Translation

... • I. Read the following statements carefully, and decide whether they are true (T) or false (F) according to the text. – ___1.The name “Ethernet” was derived from the similar fundamentals between computers communicating over a shared coaxial cable and radio broadcast systems over the ether. – ___2.E ...
Lecture 1
Lecture 1

... • Specifies the exact path a packet must go for up to the first 9 hops • It is strict because it must go through this path or not at all. • Ex: Strict Source Route through 1,4,3 ...
A Probabilistic Misbehavior Detection Scheme towards
A Probabilistic Misbehavior Detection Scheme towards

... that try to maximize their own benefits by enjoying the services provided by DTN while refusing to forward the bundles for others, or malicious nodes that drop packets or modifying the packets to launch attacks. Recently, there are quite a few proposals for misbehaviors detection in DTNs, most of wh ...
Data Link Layer
Data Link Layer

...  easy in wired LANs: measure signal strengths, compare transmitted and received signals – difficult in wireless LANs: received signal strength overwhelmed by local transmission strength – detection not functional --> don’t use /CD. Use Collision Avoidance (CA). Small reservation packets used to req ...
File: IIB ACCEPTABLE USE POLICY for Internet/Online
File: IIB ACCEPTABLE USE POLICY for Internet/Online

... when so designated by the user. However, if a user is believed to be in violation of the guidelines stated in this policy, a system administrator or Coordinator may need to gain access to private correspondence or files. An attempt will be made to notify the user of such inspections whenever possibl ...
Lecture 1
Lecture 1

... • Other topics (that are not specific to ad hoc networks) include: ...
Final Powerpoint project <- - 851KB
Final Powerpoint project <- - 851KB

... port of external CSU/DSU. • 1 DB25 port for analog modem or ISDN. • 8 RJ-45 10BaseT Ethernet ports, one with ...
Routing Protocols Overview - Home
Routing Protocols Overview - Home

... Routing Configuration • Enabling an IP routing protocol on a router involves the setting of both global and routing parameters. • The router command starts a routing process and allows you to select a routing protocol • The network command enables the routing process to determine which interfaces p ...
Declarative Networking - CIS @ UPenn
Declarative Networking - CIS @ UPenn

I - IGRP
I - IGRP

... • Metric based on bandwidth and delay by default – Optional: Can include reliability, load, and MTU. ...
SNMP Data Types
SNMP Data Types

... Version 2 was not widely adopted due to serious disagreements over the security framework in the standard ...
SCAN: a Dynamic Scalable and Efficient Content Distribution Network
SCAN: a Dynamic Scalable and Efficient Content Distribution Network

... overlay_naïve, and the traffic of overlay_naïve is quite close to IP_static • Far less frequent event than access & update dissemination ...
CS422: Intro to Network Class Review
CS422: Intro to Network Class Review

... • how bad guys can attack computer networks • how we can defend networks against attacks • how to design architectures that are immune to attacks ...
Introduction
Introduction

... • Other topics (that are not specific to ad hoc networks) include: – Small worlds - peer-to-peer networks – IP mobility - STRESS. ...
NTT Technical Review, Mar. 2008, Vol. 6, No. 3
NTT Technical Review, Mar. 2008, Vol. 6, No. 3

... and can accommodate a lot of USs, which consist of wireless terminals and terminal equipment (TE). TEs are, for example microminiature sensors and actuators. Wired terminals are IP terminals that communicate with wireless terminals in WAUN and are accommodated through an IP-GW. A wired terminal rece ...
Chapter 6 Telecommunications and Networks
Chapter 6 Telecommunications and Networks

... – Integrated Services Digital Network (ISDN) lines are used to dial into the Internet and receive information at high speeds. – Digital Subscriber Lines (DSL) use existing phone lines and new switched connections to achieve faster speeds than traditional dial-up. – T lines are digital, high-speed, l ...
Apresentação do PowerPoint
Apresentação do PowerPoint

presentation2
presentation2

... – groups raw data bits received via the physical layer into frames, for passing on to the upper layers – may include an error recovery mechanism and also a flow control mechanism, although this may be done at the transport layer ...
Chapter 07 - Computer Science
Chapter 07 - Computer Science

... Most use a store-and-forward, packet-switched technology to deliver messages ...
DRS5000 Configuration
DRS5000 Configuration

... Log into the Webmin portion of the DRS5000 In the left menu click on Servers to open list Click on PostgreSQL Database Server On the right, click on Allowed Hosts At the bottom of the allowed hosts list, click on Create a new allowed host Click on the radio button to fill next to Network (the lower ...
22.3 Figure 22.1 Direct and indirect delivery 22.4 22
22.3 Figure 22.1 Direct and indirect delivery 22.4 22

... Show the forwarding process if a packet arrives at R1 in Figure 22.6 with the destination address 180.70.65.140. Solution The router performs the following steps: 1. The first mask (/26) is applied to the destination address. The result is 180.70.65.128, which does not match the corresponding networ ...
Chapter 6 - University of Cyprus
Chapter 6 - University of Cyprus

... wireless hosts  laptop, PDA, IP phone  run applications  may be stationary (non-mobile) or mobile ...
TCP Ports
TCP Ports

... Most widely used open standard protocol  The first layered protocol model for internetwork communications was created by the DoD (Department of Defense) and DARPA (Defense Advanced Research Project Agency) in the early 1970s and is often referred to as the DoD model.  It defines four categories of ...
A Network Intrusion Testbed through Honeypots
A Network Intrusion Testbed through Honeypots

... implemented and tested a network intrusion honeypot. His goal was to test and explore different configurations of a honeypot to see how the honeypot would behave when deployed over a large network, particularly on the network of University of Western Australias Department of Computer Science. The pr ...
Intradomain routing protocols
Intradomain routing protocols

... 3. Given map, run Dijkstra’s shortest path algorithm (SPF) => get paths to all destinations 4. Routing table = next-hops of these paths. 5. Hierarchical routing: organization of areas, and ...
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Computer network

A computer network or data network is a telecommunications network which allows computers to exchange data. In computer networks, networked computing devices exchange data with each other along network links (data connections). The connections between nodes are established using either cable media or wireless media. The best-known computer network is the Internet.Network computer devices that originate, route and terminate the data are called network nodes. Nodes can include hosts such as personal computers, phones, servers as well as networking hardware. Two such devices can be said to be networked together when one device is able to exchange information with the other device, whether or not they have a direct connection to each other.Computer networks differ in the transmission media used to carry their signals, the communications protocols to organize network traffic, the network's size, topology and organizational intent. In most cases, communications protocols are layered on (i.e. work using) other more specific or more general communications protocols, except for the physical layer that directly deals with the transmission media.Computer networks support applications such as access to the World Wide Web, shared use of application and storage servers, printers, and fax machines, and use of email and instant messaging applications.
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