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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.
IEEE 802.4-Token bus Physical line or tree however logical ring. Stations know "left" as well as "right" stations. One token "passed" from station to station. Only station with
Q. Why we use numbering frames? Why numbering frames? Stop--and-wait ARQ, 1. Numbering Frames prevents the retaining of duplicate frames.. 2. Numbered acknowled
Post Office Protocols Version In computing the post office protocol version 3 (POP3) is an application layer internet standard protocols used by local e mail clients
Questions: A signal of amplitude 10 mV is fed to the amplifier in the figure. What is the amplitude of the voltage at the output from the amplifier?
Single company or organization owns this. They are usually LAN technologies. There can be multiple LANs in a campus or building linked together. They are sometimes known Intranet.
OBJECTIVES After studying this part, you should be able to: Explain the Metrics for Performance Evaluation; Notify about various Parallel System Overheads; Desc
Algorithm: Odd-Even Transposition //Input: N numbers that are in the unsorted form //Assume that element bi is assigned to pi for I=1 to N { If (I%2 != 0) //i.e Odd
What are the Disadvantages of Microwaves? a. Attenuation by solid objects: birds, snow, rain, and fog. b. Reflected from flat surfaces such as water and metal. c. Diffra
Password Authentication Protocols (PAP) PAP implements the traditional username and password authentication methods. At the request from an authenticator the client respon
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