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Question:
(a) Short Message Service (SMS) is a service available on most mobile phones that allows the sending of short messages between mobile phones, other handheld devices and even landline telephones.
Briefly describe why an SMS is limited to 160 characters.
(b) Multimedia Messaging Service (MMS) is a standard for a telephony messaging systems that allow sending messages that includes multimedia objects (images, video, audio, rich text) and not just text messages as in Short message service.
Briefly explain the two modes of delivery in MMS.
(c) Prepare the basic steps that should be taken to secure a WiFi network.
A default route is used if there is not a particular entry in the routing table for the destination.
In spite of the incompatibilities among networks, researchers have devised a function that gives universal service among heterogeneous networks known 'internetworking'. It uses bot
PVM (Parallel Virtual Machine) is a portable message-passing programming system, designed to link divide heterogeneous host machines to form a "virtual machine" which is a one, man
Undesirable Sharing With the good comes the bad while networking allow the easy sharing of useful information it also the sharing of undesirable data. One sign
What is the importance of Encryption on a network? Encryption is the process of translating information into a code that is unreadable by the user. It is then translated back o
What can be done to fix signal attenuation problems? A common way of dealing with like problem is to use repeaters and hub, because it will help regenerate the signal and thus
implementing cnet sliding window protocol with 6 nodes
A subnet is the part of an IP network.
A communications channel is pathways over which information can be communicate. It may be described by a physical wire that connects communicating devices, or by a radio, laser, or
Question : a) Describe the following core components of a cellular based network: i) Cell ii) MSC iii) HLR & VLR iv) PSTN b) Explain why frequency reuse is consi
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