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Question:
(a) In relation with a cellular network architecture, describe the following terms:
(i) Clusters (ii) Pico cells (iii) Nano cells (iii) Cell breathing
(b) What is the HO_Margin and how does it optimise handovers in cellular networks?
(c) Describe how a Mobile Terminating call, from a PSTN phone, is processed in a GSM network. Explain your answer with a diagram.
(d) Describe the different type of handovers available in UMTS and state which ones are soft or hard handovers. Explain your answer with a diagram.
Enumerate about the Traffic policing Traffic policing happens when a flow of data is regulated so that cells (or frames or packets) that exceed a performance level are discarde
Categories of traditional Ethernet a) Baseband - digital signals using Manchester encoding b) 10Base2, 10-Base-T, 10Base5, 10Base-FL c) First number signifies data rate
Question 1 This question concerns the main security goals (confidentiality, integrity, availability). Describe a situation which provides the goal of confidentiality but does not
How to protect computer Hardware by threats The first component in the computer system vulnerable to attacks or threats, and most important to be protected, is the hardware.
What is WAN? A wide area network is defines a LAN of LANs. WANs connect LANs that might be on opposite sides of a building, across the country or around the world. WANS
Linear Array: This is a most basic interconnection pattern. Processors are connected in a linear one-dimensional array. The first as well as last processors are attached with one a
FIBER OPTIC EXTENSION: The LAN extension using fiber optic is given in the figure below: Figure The fiber-modem translates digital data into pulses of light the
Explain teh term- Bits and Bitmap Many tiny dots, which are put together to make a picture. Bits are combined to make a graphic image called a bitmap. GIF and JPEG files are
Multicast Routing Protocols Multicast group addresses are assigned by IANA [Internet Assigned Numbers Authority for well known services and protocols. Information is exchang
a) Manages protocol access to the physical network medium b) Permits multiple devices to uniquely signify one another on the data link layer
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