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what is error detection what are its methodsdata can be corrupted during transmission for reliable communication errors must be deducted and
what are the responsibilities of application layerthe application layer enables the user whether human or software to access the network it gives
what are the concerns of the physical layerphysical layer coordinates the functions needed to transmit a bit stream over a physical mediuma physical
which layers are user support layersthree layers are come under user support layer-a session layerb presentation layer andc application
which layers are network support layersa physical layerb data link layer andc network
list the layers of osithere are seven layers in osi modela physical layerb data link layerc network layerd transport layere session layerf
what is synchronous tdmin stdm the multiplexer allocates exactly the same time slot to every device at all times whether or not a device has anything
what is tdmtdm is a digital process that can be applied when the data rate capacity of the transmission medium is greater than the data rate needed
what is wdmwdm is conceptually the similar as fdm except that the multiplexing and demultiplexing includes light signals transmitted by fiber optics
name the categories of multiplexingthere are three categories of multiplexinga frequency division multiplexing fdmb time division multiplexing
what is multiplexingmultiplexing is the set of techniques that permits the simultaneous transmission of multiple signals across a single data
define the terms unicasting multiccasting and broadcastingif the message is sent from a source to a one destination node it is called unicastingif
what is round trip timethe duration of time it takes to send a message from one end of a network to the other and back is known as
when a switch is said to be congestedit is possible that a switch receives packets faster than the shared link can accommodate and keeps in its
define routingthe process of determining systematically hoe to forward messages toward the destination nodes based on its address is known as
define bandwidth and latencynetwork performance is calculated in bandwidth throughput and latency delay bandwidth of a network is given by the number
what are the key design issues of a computer network a connectivityb cost-effective resource sharingc support for common servicesd
what are the key elements of protocolsthe key elements of protocols area syntax it refers to the structure or format of the data that is the
name the factors that affect the performance of the network a number of usersb type of transmission mediumc hardwared
1 what must a kernel provide for an effective user-level thread implementation 2 with respect to the quantum q in a scheduling
write the c program having class name studentinfo that is used to store the vu student information this class should store your vuid campus id name
explain segmentation hardwarewe define an completion to map two-dimensional user-defined addresses into one-dimensional physical addresses this
what is segmentationin a segmented memory management scheme a programmer views a program to be collection of program components called as segments
hashed page table methoda general approach for managing address spaces larger than 32 bits is to use a hashed page table with the hash values being