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Q. Why congestion occurs?
Congestion
Emerge if the load on the network is greater than the capacity of the network
- Load that is the number of packets sent to the network
- Capacity that is the number of packets a network can handle
Why congestion occurs?
- Because routers and switches have queues that hold the packets before and after processing
Congestion control: keep the load below capacity
The packet is place at the end of the input queue
The processing module moves the packet from the queue and forwards the packet
The packet is put in an appropriate output queue
Q. Explain Dynamic Domain Name System? DDNS - Dynamic Domain Name System automatically updates the DNS master file - Sent by DHCP to a primary DNS server; secondary se
Why do we require class and how many different parts of class exists?
EIGRP metric
User Datagram Protocol - UDP is a connectionless oriented transport protocol for use when the upper layers give error-recovery and reliability. UDP does not series data or re-assem
Q. Define transport layer of osi model? - The transport layer regulates information flow to makes sure end-to-end connectivity between host applications reliably and accurately
OSI= Open System Interconnection.
FCS= Frame Check Sequence CRC (Cyclic Redundancy Check) algorithm runs in switch that known as FCS (Frame Check Sequence)
What is Ring topology The network consists of a set of repeaters joined by point-to-point links in a closed loop. Each station attaches to the network at a repeater and can tra
Q. Fiber-Optic Cable as transmission media? - Made of glass signals are transmit like light pulses from an LED or laser - Light is as well a form of electromagnetic energy
What are the two broad class classifications under which Networks can be divided? All computer networks fit in one of the two dimensions namely: a) Transmission Technol
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