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Q. Show the Flow characteristics?
Flow characteristics
Reliability - if lacking means that packets or ACKs are lost
- more important with FTP, SMTP than with audio conferencing
Delay - source to destination delay
- telephony, audio & video conferencing more prone to delay
Jitter - variation in delay for packets belonging to the same flow
- real-time audio & video cannot tolerate high jitter
Bandwidth
Can you describe dual home architecture?
Consider a signal x(t) = 10 cos(2πfct + 4 cos 2πfmt). Assume frequency modulation. The message frequency fm = 2:3 kHz. Calculate the modulation index and find the bandwidth when
It is an additional 16-bit number which uniquely identifies the specific service on any given machine on the Internet. Port numbers are 16 bit wide, so each of the computers on the
Q. What is Bus Topology? Multipoint configuration One cable acts like a backbone to link all devices Advantages: Effortlessness of installation and less cabling
Disadvantages of Fiber Optics - Installation/maintenance - Unidirectional - Cost
Fragmentation - Wireless environment is very noisy - Corrupt frames must be retransmitted - Large frames must be divided into smaller ones to increase efficiency
Q. What are the Local Network Security Issues? Local Network Security Issues Password Protection - Encrypted username & password Group/Owner ID's - File Permissi
What is a dedicated server? A network server designated to provide one particular service is known as dedicated server. For example if a computer is assigned for database servi
Link State Packet When a router floods the network with information about its neighbourhood. It is said to be advertising. The basis of this advertising is a short pack
Domain Name A domain name is a way to recognize and locate computers connected to the Internet. This is a text name of a computer in network or Internet. Domain names are chan
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