Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Physical Media
In order to define what is meant by a physical medium let us reflect on the brief life of a bit. Consider a bit travelling from one end system through a series of links and router to another end systems. The source end system first transmits the bit and shortly thereafter the first router in the series receive the bit the first router then transmits the bit and shortly thereafter a second router the bit and so on. Thus the bit when travelling from sources to destination passes through a series of transmitter receiver pairs. For each transmitter receiver pair the bit is sent by propagating electromagnetic waves or optical pulses across a physical medium.
Physical media can be divided in to two categories: Guided and unguided media guided media include twisted pair cable coaxial cable and fiber optic cable. Unguided media is free space. Unguided media, which are those that provide a conduit from one device to another include twisted pair cable coaxial cable and fiber poetic cable. A signal travelling along any of these media is directed and contained by the physical limits of the medium.
Unguided Media Transport electromagnetic waves without using a physical conductor. This type of communication is often referred to as wireless communication. Signals are normally broadcast through free and thus available to anyone who has a device capable of receiving them.
figure classes of transmission media
GRP uses a composite metric complete up of bandwidth and delay by default, it updates each 60 Seconds and will trigger an update if the topology changes.
Can you describe the concept of TTL?
Q. Quality of Service - multiplicative decrease? Quality of Service The collective consequence of service performance which determines the degree of satisfaction of a
Differentiate between Fast fading and Slow fading Fast fading refers to changes in signal strength among a transmitter and receiver as the distance among the two changes by a s
How Does Network Topology Affect The Cost And Network Performance, Computer Science.
What is the basic difference between latches and flip flops? Ans) flip flops have clock signal whereas latches dont require anyclock pulse..
Router A router is used to route (transfer) data among two or more same networks. It verifies the next network point to which a data packet should be forwarded. The router is l
Dimensionality of Interconnection Network Dimensionality refers the arrangement of processing elements or nodes in an interconnection network. In linear network or single dimen
In this example we will see the use of parallel construct with private and firstprivate clauses. At the end of the program i and j remain undefined as these are private to thread i
This example demonstrates the use of parallel sections construct. The three functions, fun1, fun2, and fun3, all can be executed concurrently. Note that all the section directives
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd