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Question:
a) Evary cell in a cellular network is assigned a band of frequencies. The allocated frequencies are divided into two types of channels. Indentify and describe each type.
b) Explain the steps involved in a cellular phone to cellular phone call.
c) What is the motivation for cell design? What are the advantages and disadvantages of small cell sizes?
d) What are the main differences between the first and second generation cellular networks?
e) What are the 2.5G cellular networks and why they are needed? Explain a popular 2.5G system.
f) What are 3G cellular systems and why they are needed?
Explain the term Confidentiality - Firewall Design Policy Whilst some corporate data is for public consumption, the vast majority of it should remain private.
The features are needed to implement top down parsing are? Ans. Source string marker, Prediction making mechanism and also matching and backtracking mechanism features are need
It is a mixture of hardware and software to perform needed task
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a. It improves quality by providing consistent advice and by making reduction in the error rate. b. Expert systems are reliable and they do not overlook relevant info
Which of the memory is volatile memory ? Ans. A volatile memory is RAM. Term Volatile memory implies the contents of the RAM get erased as soon as the power goes off.
Explain the working of a 2-bit digital comparator with the help of Truth Table. Ans. Digital comparator is a combinational circuit which compares two numbers, A and B; and
Explain the working of light pens Light pens still exist, but due to several disadvantages they are not as popular as other input devices that have been developed. For example,
Q. Explain what is Internal Modems ? Internal Modems: Internal Modems plug in expansion slots in your PC. Internal Modems are efficient andcheap. Internal Modems are bus-specif
Explain in detail companding. Companding: It is the process of compressing and expanding. This includes compressing the signal at the transmitter and expanding this at the re
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