Computer Network

Web Applications and Security Class 10 Notes | Unit-4 IT Class 10

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Get Latest Web Applications and Security Class 10 Notes and pdf covering Accessibility Options, Networking Fundamentals, Instant Messaging, Google Talk, Blog, Internet Security, Workplace Safety and Health Safety. All the topics in Web Applications and Security Class 10 Notes Notes are well organized and prepared very concisely in easy language by experts to ensure sure […]

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Networking and Internet Class 11 Notes | IT 802 Unit-2

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IT 802 Unit 2 Networking and Internet Class 11 Notes designed as per CBSE suggested syllabus covering all topics in easy language and concisely. This Networking and Internet Class 11 Notes is very useful and specially designed by well experienced IT professional for all those students learning IT 802 Class 11. Session 1:  Computer Networking

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Write advantages and disadvantages of Tree topology

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Advantages of Tree topology: It is most suitable for large networks. Failure of any node does not affect network communication. It is Flexible network because new node can be added easily without interrupting whole network. Large community for support. It provide highly secured network. Disadvantages of Tree topology: It depends upon central cable (backbone), which

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Write two advantages and disadvantages of bus topology

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Advantage of bus topology: It is very simple to design and install. less caballing is required as compared to other topologies. Best suited for small network (LAN). Very cost effective. easily expandable Disadvantages of bus topology: Not suitable for large network. If cable (backbone) is failed, entire network goes down. though its design is simple,

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Compare Mesh topology with Tree topology

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Mesh Topology Tree Topology It is comparatively more complex it is comparatively less complex Difficult to install and maintain comparatively less difficult to install and maintain Expensive                                                Comparatively less expensive Each node can be treated as router Routers are set separately Failure of any node doesn’t affect entire network communication Failure of higher node

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How is a LAN different from WAN

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LAN WAN Area covered by LAN is around 10km radius WAN can cover entire country or globe Transmission speed is high in LAN Transmission speed is low in WAN LAN setup is comparatively less expensive Wan set is expensive It uses Ethernet, Wifi technology for communication It uses optical fiber, satellite technology for communication LAN

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How is repeater different from an amplifier

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Repeater Amplifier It reproduces signal It increases amplitude of signal Repeater is a sole device Amplifier is part of repeater It has high gain and low output power It has low gain and high output power Mainly used in fixed environment Mainly used in remote and mobile environment Noise elimination is effective in repeater It

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What is Gateway What does it do

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A gateway is a node considered as the entrance point to other networks, so that different networks can communicate with each other. It connects different network follows different protocols and different properties. Gateway can be any software, hardware or combination of both. Gateway can acts as a proxy server or firewall.

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