bcs 304 data communication and networking
... 30. GSM(Global System for Mobile Communication) is a _______ digital mobile telephones standard using a combination Time Division Multiple Access(TDMA) and FDMA(Frequency Division Multiple Access) a. b. c. d. ...
... 30. GSM(Global System for Mobile Communication) is a _______ digital mobile telephones standard using a combination Time Division Multiple Access(TDMA) and FDMA(Frequency Division Multiple Access) a. b. c. d. ...
Lecture 5
... bits transferred between sender/receiver instantaneous: rate at given point in time average: rate over longer period of time ...
... bits transferred between sender/receiver instantaneous: rate at given point in time average: rate over longer period of time ...
Chapter 6 – Connectivity Devices
... Bridges- Continued • A bridge does not know initially what stations are associated with what ports. The Forwarding Table must be built • Once a bridge is installed, it polls the clients on each of its ports to provide their MAC address • Once the bridge receives this information, it is recorded in ...
... Bridges- Continued • A bridge does not know initially what stations are associated with what ports. The Forwarding Table must be built • Once a bridge is installed, it polls the clients on each of its ports to provide their MAC address • Once the bridge receives this information, it is recorded in ...
Slide 1 - University of Dayton
... Any two computers in a peer-to-peer network may communicate directly with one another, or they may ...
... Any two computers in a peer-to-peer network may communicate directly with one another, or they may ...
ppt
... • Layer N may duplicate lower level functionality – E.g., error recovery to retransmit lost data ...
... • Layer N may duplicate lower level functionality – E.g., error recovery to retransmit lost data ...
ppt
... • Impact ordering used to detect loss • TCP uses re-order of 3 packets as heuristic • Decrease in threshold would cause many “bad” rexmits • But would increase rexmit opportunities by 65-70% ...
... • Impact ordering used to detect loss • TCP uses re-order of 3 packets as heuristic • Decrease in threshold would cause many “bad” rexmits • But would increase rexmit opportunities by 65-70% ...
slides - Winlab
... Contents are advertised by hosts through their routers which in turn advertise to neighboring routers. (Similar to RIP) Content Request To route a content request packet, the content id of the packet is seen and the next hop is looked up on the forwarding table. Best amongst the multiple hosts ...
... Contents are advertised by hosts through their routers which in turn advertise to neighboring routers. (Similar to RIP) Content Request To route a content request packet, the content id of the packet is seen and the next hop is looked up on the forwarding table. Best amongst the multiple hosts ...
山东建筑大学试卷 共 4页 第 1 页 至 学年 第 1 学期 课程名称 计算机
... 12、There are two fundamental approaches to building a network core: _____ switching and _____ switching. And in ____ switched networks, the resources are not reserved; a session’s messages use the resources on demand, and as a consequence, may have to wait for access to a communication link. ...
... 12、There are two fundamental approaches to building a network core: _____ switching and _____ switching. And in ____ switched networks, the resources are not reserved; a session’s messages use the resources on demand, and as a consequence, may have to wait for access to a communication link. ...
Quality of Service
... depending on the traffic at the moment the packet is sent. There is no guarantee that the packets arrive at the destination in order. This model is not quite as simple as it looks. Some issues have to be considered such as: The multiprotocol routers can translate from packet format to another when t ...
... depending on the traffic at the moment the packet is sent. There is no guarantee that the packets arrive at the destination in order. This model is not quite as simple as it looks. Some issues have to be considered such as: The multiprotocol routers can translate from packet format to another when t ...
Lecture 9: Communication Security
... HTTP Digest Authentication is definitely not suitable for an application such as Internet banking which requires a high level of security. It provides no confidentiality for user transactions and limited integrity. It is also vulnerable to ‘man-in-the-middle’ attacks. TLS provides confidentiality an ...
... HTTP Digest Authentication is definitely not suitable for an application such as Internet banking which requires a high level of security. It provides no confidentiality for user transactions and limited integrity. It is also vulnerable to ‘man-in-the-middle’ attacks. TLS provides confidentiality an ...
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Networking & Security
... The network capacities of Linux OS : Support of many network protocols File sharing and printing Internet / Intranet Services Remote execution of application Acting as network interconnection ...
... The network capacities of Linux OS : Support of many network protocols File sharing and printing Internet / Intranet Services Remote execution of application Acting as network interconnection ...
5 G ppt - WordPress.com
... telecommunication • It is developed in 1980s and completed in early 1990s. • It provides a speed up to 2.4kbps. • It is based on analog system. • It allows user to make call in one country. • It has low capacity, unreliable handoff, poor voice links , and no security at all since voice calls were pl ...
... telecommunication • It is developed in 1980s and completed in early 1990s. • It provides a speed up to 2.4kbps. • It is based on analog system. • It allows user to make call in one country. • It has low capacity, unreliable handoff, poor voice links , and no security at all since voice calls were pl ...
Forcepoint™ Stonesoft Next Generation Firewall
... piece meal across network layers or protocols using techniques such as masking and obfuscation. Once inside networks, threats are reassembled where they can hide, exfiltrating sensitive data for days, months, or even years. Forcepoint NGFW applies layered threat discovery techniques to network traff ...
... piece meal across network layers or protocols using techniques such as masking and obfuscation. Once inside networks, threats are reassembled where they can hide, exfiltrating sensitive data for days, months, or even years. Forcepoint NGFW applies layered threat discovery techniques to network traff ...
Presentation16
... operating normally & the establishment and management of open channels is managed separately by a further protocol (known as CSMA/CD - more on this later) all channels are “open” for communication packets are numbered, so they can be correctly assembled at the receiving end ...
... operating normally & the establishment and management of open channels is managed separately by a further protocol (known as CSMA/CD - more on this later) all channels are “open” for communication packets are numbered, so they can be correctly assembled at the receiving end ...
Computer Network
... A computer network or data network is a telecommunications network that allows computers to exchange data. In computer networks, networked computing devices pass data to each other along data connections. The connections (network links) between nodes are established using either cable media or wirel ...
... A computer network or data network is a telecommunications network that allows computers to exchange data. In computer networks, networked computing devices pass data to each other along data connections. The connections (network links) between nodes are established using either cable media or wirel ...
eCommerce – Workshop #1
... • World wide web: common technique for publishing information on the internet, accessed through web browser which display web pages pf embedded graphics and HTML/XML encoded text. • Hyperlink: method of moving between one website page and another, indicated to the user by an image or text highlighte ...
... • World wide web: common technique for publishing information on the internet, accessed through web browser which display web pages pf embedded graphics and HTML/XML encoded text. • Hyperlink: method of moving between one website page and another, indicated to the user by an image or text highlighte ...
Networking
... The Ethernet (IEEE 802.3) standard transmits data in little chunks called packets Break long messages into short “packets” Keeps one user from hogging a line Each packet is tagged with where it’s going ...
... The Ethernet (IEEE 802.3) standard transmits data in little chunks called packets Break long messages into short “packets” Keeps one user from hogging a line Each packet is tagged with where it’s going ...
IP Packet Switching COS 461: Computer Networks Spring 2008 (MW 1:30‐2:50 in COS 105) Mike Freedman
... • IP means never having to say you’re sorry… – Don’t need to reserve bandwidth and memory – Don’t need to do error detecTon & correcTon – Don’t need to remember from one packet to next ...
... • IP means never having to say you’re sorry… – Don’t need to reserve bandwidth and memory – Don’t need to do error detecTon & correcTon – Don’t need to remember from one packet to next ...
Chapter 3 OSI Model
... UDP is used for client-server type request queries & applications in which prompt delivery is more important than accurate delivery such as transmitting speech or video. ...
... UDP is used for client-server type request queries & applications in which prompt delivery is more important than accurate delivery such as transmitting speech or video. ...
COS 461: Computer Networks Spring 2009 (MW 1:30‐2:50 in CS 105) Mike Freedman Teaching Assistants: WyaI Lloyd and Jeff Terrace
... Wme, discussions with friends are encouraged. However, when the Wme comes to write code that solves the problem, such discussions are no longer appropriate ‐ the program must be your own work. If you have a quesWon about how to use some feature of C, UNIX, etc., you can certainly ask your frie ...
... Wme, discussions with friends are encouraged. However, when the Wme comes to write code that solves the problem, such discussions are no longer appropriate ‐ the program must be your own work. If you have a quesWon about how to use some feature of C, UNIX, etc., you can certainly ask your frie ...
IP / MPLS - IDG Communications
... • Network has full QoS feature support with Service Level Guarantees to support lower latency, packet loss and jitter • 100% Powered by Cisco Systems – Single vendor platform • Infrastructure is SOUL owned and operated, and independent of Telstra • In excess of 900 employees in offices throughout Au ...
... • Network has full QoS feature support with Service Level Guarantees to support lower latency, packet loss and jitter • 100% Powered by Cisco Systems – Single vendor platform • Infrastructure is SOUL owned and operated, and independent of Telstra • In excess of 900 employees in offices throughout Au ...