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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.
Question: (a) Explain and illustrate different architectures for IEEE802.11 (WiFi). (b) The MAC management of IEEE802.11 handles transmitter activity for power management.
Systolic Array This interconnection network is a kind of pipelined array architecture and it is designed for multidimensional flow of data. It is used for executing fixed algor
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Problem 1. Explain the TCP/IP Reference Model with diagram 2. Describe the following Maximum Data Rate of a Channel Signal to Noise Ratio 3. Describe the
State the benefits of Infrared light Infrared light does not penetrate walls or other opaque objects. This has two benefits: First, infrared communications can be more simply
Can you define the method of CIDR?
1. A computer system has a two-level memory cache hierarchy. The L1 cache has a zero hit penalty, a miss penalty of 5 ns and a hit rate of 95 percent. The L2 cache has a miss pena
Determine the rate of communication line The dog could carry 21 gigabytes or 168 gigabits. A speed of 18 km/hour that is equal to 0.005 km/sec. The time to travel the distance
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