Question

For each of the following four networks,discuss the consequences if a connection fails.
a. Find
devices arranged in a
mesh topology
b. Find devices arranged an a star topology
Ic. find devices auranged in
d. Find devices auanged in
a ring topology
bus topology​

Answer 1

Answer:

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Explanation:

Five devices arranged in a mesh topology If one connection fails, the other connections will still be working.

Answer 2

Answer:

Explanation:

1. For n devices in a network, what is the number of cable links required for a mesh, ring, bus, and star topology?

Ans: n(n-1)/2 cable link are required for mesh, n for ring, n-1 cable link for bus, and n cable link for star topology.

2. What is the difference between half-duplex and full-duplex transmission modes?

Ans: In half-duplex mode, each station can both transmit and receive, but not at the same time.When one device  is sending, the other can only receive,and vice versa. Like walkie-talkies.

In full-duplex mode, both station can transmit and receive simultaneously. Like telephone network.

3. What are some of the factors that determine whether a communication system is a LAN or WAN?

Ans: Size and Coverage of area determine whether a communication system is LAN or WAN. A LAN normally covers an area less than 2 mile, a WAN can be worldwide.

4. Identify the five components of a data communications system?

Ans: A data communications system has five components-(i) Message, (ii) Sender, (iii) Receiver, (iv)Transmission medium, (v) Protocol.

5. What are the advantages of a multipoint connection over point-to-point connection?

Ans: In a multipoint environment, the capacity of the channel is shared, either spatially or temporally. If several devices can use the link simultaneously, it is a spatially shared connection. If users must take turns, it is a timeshared connection.

6. Why are standard needed?

Ans: Standard are essential in creating and maintaining an open and competitive market for equipment manufacturers and in guaranteeing national and international interoperability  of data and telecommunications technology and processes. Standard provide guidelines to manufacturers, vendors, government agencies, and other service providers to ensure the kind of interconnectivity necessary in today's marketplace and in international communications.