1. What are the four generic architectural components of a public communications network? Define each term?
The Generic architectural Components are Subscribers, Subscriber Line, Exchanges and Trunks.
Subscribers: The gadgets that connect to the system, for example, phones and modems.
Subscriber Line: The link between the subscriber and the network.
Exchanges: The exchanging focuses in the system.
Trunks: The branches between trades. Trunks convey numerous voice-recurrence circuits utilizing either FDM or synchronous TDM.
2. Explain the difference between datagram and virtual circuit operation?
In the data gram approach, every packet is dealt with freely, with no reference to Packets that have gone some time recently. In the virtual circuit approach, a pre-arranged course is set up prior to any packets are sent. When the course is set up, every one of the packets …show more content…
Briefly explain ATM, VCC, and VPC.
ATM: An Asynchronous Transfer Mode (ATM) Pseudo wire (PW) is utilized to convey ATM cells over a MPLS system. This empowers administration suppliers to offer "imitated" ATM administrations over existing MPLS systems.
VCC: The data transmission of a virtual way is coherently isolated into particular virtual channels utilizing a virtual divert identifier in the ATM header. Not at all like virtual ways, have virtual channels shared the data transmission inside of a virtual way powerfully.
VPC: The data transmission of the transmission way is consistently isolated into discrete virtual ways what's more, recognized utilizing the VPI as a part of the ATM header. Each virtual way is dispensed an altered measure of transfer speed. Virtual ways don't powerfully change their data transfer capacities past what has been assigned.
4. What are the three layers of IEEE 802 reference models? What are their major functions?
The layers of IEEE 802 Reference Models are 1. LLC Sublayer (logical link control) 2. MAC Sublayer (Media Access Control) 3. Physical layer.
The Generic architectural Components are Subscribers, Subscriber Line, Exchanges and Trunks.
Subscribers: The gadgets that connect to the system, for example, phones and modems.
Subscriber Line: The link between the subscriber and the network.
Exchanges: The exchanging focuses in the system.
Trunks: The branches between trades. Trunks convey numerous voice-recurrence circuits utilizing either FDM or synchronous TDM.
2. Explain the difference between datagram and virtual circuit operation?
In the data gram approach, every packet is dealt with freely, with no reference to Packets that have gone some time recently. In the virtual circuit approach, a pre-arranged course is set up prior to any packets are sent. When the course is set up, every one of the packets …show more content…
Briefly explain ATM, VCC, and VPC.
ATM: An Asynchronous Transfer Mode (ATM) Pseudo wire (PW) is utilized to convey ATM cells over a MPLS system. This empowers administration suppliers to offer "imitated" ATM administrations over existing MPLS systems.
VCC: The data transmission of a virtual way is coherently isolated into particular virtual channels utilizing a virtual divert identifier in the ATM header. Not at all like virtual ways, have virtual channels shared the data transmission inside of a virtual way powerfully.
VPC: The data transmission of the transmission way is consistently isolated into discrete virtual ways what's more, recognized utilizing the VPI as a part of the ATM header. Each virtual way is dispensed an altered measure of transfer speed. Virtual ways don't powerfully change their data transfer capacities past what has been assigned.
4. What are the three layers of IEEE 802 reference models? What are their major functions?
The layers of IEEE 802 Reference Models are 1. LLC Sublayer (logical link control) 2. MAC Sublayer (Media Access Control) 3. Physical layer.