slides
... • Can be used when media unit size is smaller than packet size (as may be the case with audio) and end-to-end delay is not important • Units are resequenced before transmission so that originally adjacent units are separated by a guaranteed distance and returned to original order at the receiver • D ...
... • Can be used when media unit size is smaller than packet size (as may be the case with audio) and end-to-end delay is not important • Units are resequenced before transmission so that originally adjacent units are separated by a guaranteed distance and returned to original order at the receiver • D ...
Brief Timeline of the Internet
... When we talk about the Internet, we talk about the World Wide Web from the past four or five years. But, its history goes back a lot further; all the way back to the 1950s and 60s. "Where was I," you ask, "while all this was happening?" Well, it's quite simple really: the Space Program. America was ...
... When we talk about the Internet, we talk about the World Wide Web from the past four or five years. But, its history goes back a lot further; all the way back to the 1950s and 60s. "Where was I," you ask, "while all this was happening?" Well, it's quite simple really: the Space Program. America was ...
Slide 1
... • Transport-layer multiplexing (gather data chunks at the source host from different sockets and pass to network layer) and demultiplexing (delivering the data in transportlayer to the correct socket) extend host-to-host services between two end systems to a delivery service between two processes ru ...
... • Transport-layer multiplexing (gather data chunks at the source host from different sockets and pass to network layer) and demultiplexing (delivering the data in transportlayer to the correct socket) extend host-to-host services between two end systems to a delivery service between two processes ru ...
Chapter 01_02 - UniMAP Portal
... Internet not originally designed with (much) security in mind original vision: “a group of mutually trusting users attached to a transparent network” Internet protocol designers playing “catch-up” security considerations in all layers! ...
... Internet not originally designed with (much) security in mind original vision: “a group of mutually trusting users attached to a transparent network” Internet protocol designers playing “catch-up” security considerations in all layers! ...
Chapter 2 Protocols and Architecture
... —Source must activate comms. Path or inform network of destination —Source must check destination is prepared to receive —File transfer application on source must check destination file management system will accept and store file for his user —May need file format translation ...
... —Source must activate comms. Path or inform network of destination —Source must check destination is prepared to receive —File transfer application on source must check destination file management system will accept and store file for his user —May need file format translation ...
Chapter 2 Protocols and Architecture
... —Source must activate comms. Path or inform network of destination —Source must check destination is prepared to receive —File transfer application on source must check destination file management system will accept and store file for his user —May need file format translation ...
... —Source must activate comms. Path or inform network of destination —Source must check destination is prepared to receive —File transfer application on source must check destination file management system will accept and store file for his user —May need file format translation ...
IDS
... which has scalability issues. Thus they might not be able to detect the worm in its early stage. ...
... which has scalability issues. Thus they might not be able to detect the worm in its early stage. ...
Steganography of VoIP Streams
... o PRBRNS (Packet Raw Bit Rate) [bits/packet]: How much information may be covertly sent in one packet. o SB0: Total amount of bits that can be covert send in the fields of the first packet. o SBj: Total amount of bits that can be covertly sent in the fields of the following packets o l is number of ...
... o PRBRNS (Packet Raw Bit Rate) [bits/packet]: How much information may be covertly sent in one packet. o SB0: Total amount of bits that can be covert send in the fields of the first packet. o SBj: Total amount of bits that can be covertly sent in the fields of the following packets o l is number of ...
Lecture 2 - Networking Devices
... First, bridging occurs at the data link layer or layer 2,while routing occurs at the network layer or layer 3 of the OSI model. Second, bridges use physical or MAC addresses to make data forwarding decisions. Routers use a different addressing scheme that occurs at layer ...
... First, bridging occurs at the data link layer or layer 2,while routing occurs at the network layer or layer 3 of the OSI model. Second, bridges use physical or MAC addresses to make data forwarding decisions. Routers use a different addressing scheme that occurs at layer ...
Broadcast-and-select networks
... – Contention: a single receiver must tune to two or more channels at the same time • We need a Medium Access Control (MAC) protocol ...
... – Contention: a single receiver must tune to two or more channels at the same time • We need a Medium Access Control (MAC) protocol ...
Lecture 2 - Networking Devices
... First, bridging occurs at the data link layer or layer 2,while routing occurs at the network layer or layer 3 of the OSI model. Second, bridges use physical or MAC addresses to make data forwarding decisions. Routers use a different addressing scheme that occurs at layer ...
... First, bridging occurs at the data link layer or layer 2,while routing occurs at the network layer or layer 3 of the OSI model. Second, bridges use physical or MAC addresses to make data forwarding decisions. Routers use a different addressing scheme that occurs at layer ...
Chapter 10: Electronic Commerce Security
... Recall that - Secrecy is the prevention of unauthorized information disclosure Privacy is the protection of individual rights to nondisclosure ...
... Recall that - Secrecy is the prevention of unauthorized information disclosure Privacy is the protection of individual rights to nondisclosure ...
Chapter 2 Protocols and Architecture
... —Source must activate comms. Path or inform network of destination —Source must check destination is prepared to receive —File transfer application on source must check destination file management system will accept and store file for his user —May need file format translation ...
... —Source must activate comms. Path or inform network of destination —Source must check destination is prepared to receive —File transfer application on source must check destination file management system will accept and store file for his user —May need file format translation ...
Part 1 R1 What is the difference between a host and an end system
... can be problematic and cause gaps. Statistical Multiplexing fixes this issue by only allowing the time needed to send each message be used. ...
... can be problematic and cause gaps. Statistical Multiplexing fixes this issue by only allowing the time needed to send each message be used. ...
IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661,p-ISSN: 2278-8727 PP 37-41 www.iosrjournals.org
... A malicious node may disrupt the normal operation of a network by dropping packets.This type of attack can be classified into two types: (a) Black hole attack and (b) Gray holeattack. b. Blackhole Attack In blackhole attack, a malicious node uses its routing protocol in order to advertise itselffor ...
... A malicious node may disrupt the normal operation of a network by dropping packets.This type of attack can be classified into two types: (a) Black hole attack and (b) Gray holeattack. b. Blackhole Attack In blackhole attack, a malicious node uses its routing protocol in order to advertise itselffor ...
lesson19
... • As with the ‘extended’ receive-descriptors, it is necessary for a device-driver to setup each ‘packet-split’ receive-descriptor any time it is going to be ‘reused’, since prior buffer-addresses get overwritten during a packet-reception by the network controller • So driver needs a formula for reca ...
... • As with the ‘extended’ receive-descriptors, it is necessary for a device-driver to setup each ‘packet-split’ receive-descriptor any time it is going to be ‘reused’, since prior buffer-addresses get overwritten during a packet-reception by the network controller • So driver needs a formula for reca ...
Network : Group of two or more computer systems linked together ,it
... Is a collection of computers associated with each other around the world through an extensive network of computers share the resources .the Internet network type WAN and is also dependent on the protocol (TCP/IP) for the exchange of process information ...
... Is a collection of computers associated with each other around the world through an extensive network of computers share the resources .the Internet network type WAN and is also dependent on the protocol (TCP/IP) for the exchange of process information ...
Chapter 3. QoS Mechanisms
... • An example of Layer 3 classification is IPTOS (Internet protocol type of service – IPv4 and IPv6 standard defined a prioritization field in the IP header RFC 1349 defined a TOS field in IPv4 header. The type of service field consists of a 3-bit precedence subfield, a 4-bit TOS subfield, and the fi ...
... • An example of Layer 3 classification is IPTOS (Internet protocol type of service – IPv4 and IPv6 standard defined a prioritization field in the IP header RFC 1349 defined a TOS field in IPv4 header. The type of service field consists of a 3-bit precedence subfield, a 4-bit TOS subfield, and the fi ...
Ch. 8 Circuit Switching - The Coming
... logical connection; intermediate nodes have less processing required. – Multiplexing and switching of logical connections take place at layer 2 instead of layer 3 (eliminating a layer of processing). – No hop-by-hop flow control and error control-(performed at a higher layer if at all). – Less overh ...
... logical connection; intermediate nodes have less processing required. – Multiplexing and switching of logical connections take place at layer 2 instead of layer 3 (eliminating a layer of processing). – No hop-by-hop flow control and error control-(performed at a higher layer if at all). – Less overh ...
Optical Burst Switching Obs.doc
... logical connection; intermediate nodes have less processing required. – Multiplexing and switching of logical connections take place at layer 2 instead of layer 3 (eliminating a layer of processing). – No hop-by-hop flow control and error control-(performed at a higher layer if at all). – Less overh ...
... logical connection; intermediate nodes have less processing required. – Multiplexing and switching of logical connections take place at layer 2 instead of layer 3 (eliminating a layer of processing). – No hop-by-hop flow control and error control-(performed at a higher layer if at all). – Less overh ...
Document
... Introduction • Visualization has been used in computer science education • Visualization of computer security concepts are needed – Embry-Riddle Aeronautical Univ. developed interactive modules for such topics as buffer overflow vulnerabilities, cryptography, etc. ...
... Introduction • Visualization has been used in computer science education • Visualization of computer security concepts are needed – Embry-Riddle Aeronautical Univ. developed interactive modules for such topics as buffer overflow vulnerabilities, cryptography, etc. ...
Chapter 13 slides
... 13.2 Basic Terminologies • Each cloud represented computers of an Internet Service Provider (ISP) • The ISP clouds are not directly connected • Instead they are connected by routers, which are special purpose computer for this purpose • How do these routers know where to send information? A univers ...
... 13.2 Basic Terminologies • Each cloud represented computers of an Internet Service Provider (ISP) • The ISP clouds are not directly connected • Instead they are connected by routers, which are special purpose computer for this purpose • How do these routers know where to send information? A univers ...
IST 201 - York Technical College
... • TCP/IP Model combines first three layers of OSI • TCP/IP Model combines data link & phys into network access • TCP/IP – simpler • TCP/IP – internet was built based on it • OSI – guide for understanding communication process ...
... • TCP/IP Model combines first three layers of OSI • TCP/IP Model combines data link & phys into network access • TCP/IP – simpler • TCP/IP – internet was built based on it • OSI – guide for understanding communication process ...
Radio Communication
... • What is “Internet” ? – To “the man in the street” = Web-browsing - multimedia service platform – Interactive information services – Streaming audio/video – Rich exponentially growing content ...
... • What is “Internet” ? – To “the man in the street” = Web-browsing - multimedia service platform – Interactive information services – Streaming audio/video – Rich exponentially growing content ...