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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
Q. What is an Error? At any time bits flow from one point to another they are subject to unpredictable changes because of interference The interference is able to change the
What is the difference between routable and non- routable protocols? Ans) Routable protocols can work with a router and can be used to build huge networks. Non-Routable protocol
The Five steps to data encapsulation (IN ORDER): 1) User information is changed into data. 2) Data is changed into segments. 3) Segments are changed into datagram and pack
DNS Message There are the only two kinds of DNS message DNS query and reply messages. Further mote both query and reply message have the same format as shown in figure.
Describe the count-to-infinity problem in distance vector
Star Topology Devoted point-to-point links to central controller (hub) Controller acts like exchange Advantages - Less expensive - Robustness Disadv
ATM designers select cells over packets because of the following facts: Cells are fixed length and memory management for them is easy. Handling variable length packets tends
differntiate between error control and flow control in data link layer
What is silly window syndrome? It is a difficulty that can ruin TCP performance. This problem happens when data are passed to the sending TCP entity in large blocks, but an int
Q. Explain about line coding? Line Coding Procedure of converting binary data to a digital signal DC Components Residual dc (direct-current) components or
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