To receive a message through a Network, do you need an Address? What kind of add
ID: 3792749 • Letter: T
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To receive a message through a Network, do you need an Address? What kind of address? give an example for each What is a Protocol? Explain briefly List (the name of) a protocol for PAN 3 Protocols for LAN; 5 protocols for the Internet List a few choices that you have for WAN. Specify the channels, and their speed What is the form of the signals for data/messages? Draw a picture for it. What is the form of the signal that carries the message(used for c: exergy)? Draw a picture for it. what is modulation, what is a modem?Explanation / Answer
1. Yes we need three addresses to receive a message through a network. They are,
a. MAC address and b. IP address c. Port number
MAC addresses are the low level components of an Ethernet network(and/or wifi).
They allow a device to communicate with a machine on the local physical network(LAN). MAC addresses are required to make a local Ethernet(or wifi) network function. They allow a network device to attract the at tension of single directly connected device, even though the physical connection is shared. This can be important when thousands of devices are connected together within a single organisation.
Whereas, IP addresses is an unique address that computing devices such as personal computers, tablets, smart phones use to identify itself and communicate with other devices in the IP network. Examples are IPV4 and IPV6.
Port number ,added to a computer's IP address , completes the destination address for a communication session.
2. In information technology, a protocol is the special set of rules that end points in a telecommunication connection use when they communicate. Protocols specify interactions between the communicating entities. Example TCP/IP Protocol.
3. a. ZigBee
b. 1.Ethernet
2. Token Ring
3. ATM(Asynchronous Transfer Mode)
c. 1. TCP/IP(Transmission Control Protocol/Internet Protocol)
2. UDP(User Datagram Protocol)
3. POP(Post Office Protocol)
4. HTTP(Hypertext Transfer Protocol)
5. FTP(File Transfer Protocol )
4. 1. ISDN- Integrated Services Digital Network has two defined interface standards: basic Rate Interface(BRI) and Primary Rate Interface(PRI).
BRI uses three separate channels, two bearer channels of 64 Kbps each and a delta channel of 16kbps.
PRI is generally carried over T1 line and can provide transmission rates of upto 1.544 Mbps. It is composed of 23 B channels, each providing 64kbps for data/voice capacity, and one 64 Kbps D channel, which is used for signalling .
2. T carrier lines - T1 transmission speed of 1.544 Mbps ,T2 offers transmission speed of 6.312 Mbps , uses 96 64 Kbps B channels,T3 offers transmission speed of up to 44.736 Mbps , using 672 64 Kbps B channels.
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