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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.
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Can you describe passive and active route states?
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Ans) The Transport Layer : Segments upper-layer applications. Establishes an end-to-end connection. Sends segments from one end host to another. Optionally, make sures
FDDI Media Access Control Unlike CSMA/CD networks such like Ethernet token-passing networks are deterministic--you are able to calculate the maximum time that will pass before
Token Passing Station is able to send only when it receives a special frame called a token Token circulates around the ring If station wishes to sen
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Describe any good security technology A good security technology should be powerful enough to support the features that the administrators need, including rules validation to i
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