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Q. Use of Infrared?
- Frequencies among 300 GHz and 400 THz
- Short-range communication
- High frequencies can't penetrate walls
- Necessitate line-of-sight propagation
- Advantage prevents interference between systems in adjacent rooms
- Disadvantage can't use for long-range communication or outside a building due to sun's rays
Computer Networks 1. Differentiate WAN and LAN. 2. Describe the TCP/IP Reference Model with diagram. 3. Explain Circuit switching and message switching. 4. List the fu
A typical layer 2 switch has a number of features. Identify and explain 5 features that you think are important that you would consider in your evaluation of L2 switches offered b
Hold-Down Timers - Routers ignore network update information for a number of periods.
Q. Calculate Utilization percentage of the link? - System: Stop and wait ARQ - Bandwidth: 1Mbps - Round trip for one bit: 20ms - Frame length: 1000 bits Utilizatio
Question: (a) Describe briefly the difference between flow control and congestion control in relation to a connection-oriented protocol such as TCP. (b) What is the initia
Consider figure. Assume a new flow E is added that takes a path from R1 to R2 to R6. How does the max-min bandwidth allocation change for the 5 flows?
What are the benefits of wireless devices One benefit is that if everyone uses standard, everyone can talk to anyone. Another benefit is that extensive use of any standard will
Switch Generally called as two layer switch . it performs on physical and data link layers. It is a bridge it has many ports that allow better performance. Since
ARP(ADDRESS RESOLUTION PROTOCOL) is a network layer protocol which associates the physical hardware address of a network node(commonly called as a MAC ADDRESS) to its ip address. n
Demarcation is the point in which responsibility changes hands.
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