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Question: a) Explain briefly three typical network topologies giving one advantage and one disadvantage of each topology. Explain the three topologies with appropriate diagrams
Three layers are called upper layers a) Application Layer - 7 b) Presentation Layer - 6 c) Session Layer - 5
Authoritative DNS Servers Every organization with publicly accessible hosts ( such as web server and mail several on the internet must provide publicly accessible D
Q. What are the Error Correction Techniques ? Error Correction Error Correction Techniques Retransmission Forward Error Correction Burst Error Corre
Customer Premise Equipment (CPE) are devices physically located at the subscriber's premises. Includes both owned and leased equipment.
Explain Presentation layer in OSI model
The address for a device as it is recognized at the Media Access Control (MAC) layer in the network architecture. MAC address is usually stored in ROM on the network adapter card a
Repeaters - Operate only in physical layer - Connects two segments of the same LAN - Both segments must be of the same protocol - Only forwards frames; does not filter
Describe Network Topology and VPN Network Topology refers to the layout of a computer network. It presents how devices and cables are physically laid out, as well as how they j
What is one basic requirement for establishing VLANs? A VLAN needs dedicated equipment on each end of the connection that permits messages entering the Internet to be encrypted
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