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basic functions of e-mail system are given as followscomposition refers to the procedure of creating messages and the answers. though any text editor
electronic mailelectronic mail which is famous as e-mail as it is known to its number of users has been around for more than two decades. before 1990
medium earth orbiting satellite is an orbit which is located just above the few hundred miles to a few thousands above the earth surface. it is of
low-earth orbiting have more advantageous in mobile based communication devices like pdas cell phones and automobile communications. the low-earth
geo stationary satellitethe satellite which is known as earth-orbiting satellite is called geo stationary satellite. the geo stationary satellite is
describe circuit switching packet switching and virtual circuit packet switching. explain their suitability for different applications such as
circuit switching is a term used in communication where the communicating nodes will be connected through a dedicated channel before any
what is multiplexing and demultiplexing? explain.describe time division frequency division and wavelength division multiplexing.what is adsl? how
skype is a web-based service which offers cheap and free phone calls. explain step by step in terms of networking technology what really happens from
name various types of guided and unguided transmission media. if you are connecting your office computers through a local area network which
the network layer is used to route physical data to the destination point it decides the actual path from where data travels to destination point.
the transport layer implements reliable data transport services. the various functions of transport layer are listed belowthe transport layer is
in distributed data processing explain two scenarios where vertical partitioning and horizontal partitioning are used.distributed data processingthe
a udp header does not have sequence number and acknowledgement number fields. is it an advantage or a disadvantage? explain your answer in
A Checklist of the Cabling Specifications that i will give to a Cable Contractor - the list must have cables, connectors and other hardware required for installion of the network
Suppose the following block of 2 bytes in Hexadecimal is to be sent in a multicast system using a checksum of 1 byte:A935
In this phase of the project you will include Part I (presumably improved as needed based upon week 3 feedback) and then you will recommend solutions for the security weaknesses you identified in the
Respond to a classmate who summarized a different modulation scheme than you. Compare his or her modulation scheme to the one you selected. What are the major differences? Why is there a need for diff
A common message integrity check is DES-CBC, which means encrypting the message in CBC mode and using the final ciphertext block as the checksum.
Suppose there are exactly two packet switches between a sending host and a receiving host. The transmission rate between the sending host and switch#1 is R1
Suppose you can access the caches in the local DNS servers of your department. Can you propose a way to roughly determine the web servers (outside your department) that are not popular among the users
Assume that you are to design a TDM carrier, say DS-489, to support 30 voice channels using 6 bit samples and a structure similar to DS-1. Determine the required bit rate. Assume that the sa
Your company network currently consists of workstations, switches and routers. There are 12 departments in the company. The company has agreed to use the reserved (private) class B address range.
Name the five layers of the Internet protocol stack and give an example of protocol for each layer (except for the lowest layer). Do not use abbreviations or acronyms.
Imagine you are designing an application-layer protocol for streaming video. How would you deal with the unreliability of the Internet Protocol? Which aspects of unreliability would most aff