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Q. Use of Infrared?
- Frequencies among 300 GHz and 400 THz
- Short-range communication
- High frequencies can't penetrate walls
- Necessitate line-of-sight propagation
- Advantage prevents interference between systems in adjacent rooms
- Disadvantage can't use for long-range communication or outside a building due to sun's rays
What are firewalls? Firewalls serve to protect an internal network from external attacks. These external threats can be hackers who need to steal data or computer viruses that
Skype is a web-based service which offers cheap and free phone calls. Explain step by step (in terms of networking technology) what really happens from the point when you initiate
Q. What is Data traffic? Data traffic Peak data rate : max data rate of the traffic Average data rate = (amount of data)/time Maximum Burst size: max. l
How optimal MTU size is measured
Router# reload is the command to reload the router
What is the equivalent layer or layers of the TCP/IP Application layer in terms of OSI reference model? The TCP/IP Application layer really has three counterparts on the OSI mo
What are the Advantages of adaptive routing (1) An adaptive routing method can improve performance, as realised by the network user. (2) An adaptive routing method can aid
The science and art of manipulating messages in order to create them secure is known as cryptography..... Two types are:- Symmetric key cryptography and Asymmetric key crypto
Network layer duties Internetwork - Physical and Data link layers are jointly responsible for data delivery on the network from node to node
Define the Class B Addresses? First two octets are the network number as well as the last two octets are the host number 16382 probable blocks for assignment to organi
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