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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. Diffracted (split) around solid objects.
d. Refracted by atmosphere, thus causing beam to be projected away from receiver.
QUESTION 1 (a) Draw a use-case model for the above system. You must identify all possible actors and use-cases. (b) Assume you are using the Rational Unified Process a
When programming a server or a client, we have to deal with port numbers and IP addresses, but we usually do this through an abstraction called a socket. Sockets are the standard A
An FDDI frame or Token Ring frames those points to serious problem with the ring, like a broken cable. The beacon frame carries the address of the station thought to be down.
a) Consider a hypothetical arrangement of ‘self-learning' bridges shown in the figure below. Assuming all are initially empty, give the forwarding tables for each of the bridges B
What is Ring Topology? The physical ring topology is a circular loop of point-to-point links. Every device connects directly to the ring or indirectly by and interface device o
Process to send data is called as encapsulation and process to receive data is called De-encapsulation.
What is Frequency diversity Due to the transmission is spread out over a larger bandwidth, frequency-dependent transmission impairments, like as noise bursts and selective fadi
What is the difference between routable and non- routable protocols? Ans) Routable protocols can work with a router and can be used to build huge networks. Non-Routable protocol
What are the advantages and disadvantages of the three types of routing tables? The three types of routing tables are fixed, dynamic, and fixed central. The fixed table must be
Illustrate a traffic light is an example of what type of mechanism Ans) A Traffic light is an example of flow control.
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