Chapter 11 Flashcards
Which 3 addresses are checked by NIC
- Physical address
- Broadcast address
- Multicast address
If any one of them matches then message goes to CPU otherwise CPU will not be disturbed.
Why we use network interface hardware (NIC)
It is because the speed of machine and the speed of network. Network speed is faster than computer. NIC or also known as network adapter card gives us solution.
What is DMA
Direct memory access is a process used by NIC. It allows NIC to operator as an isolated piece from CPU.
What is wiring scheme
How NIC connects to network is called wiring scheme.
What is thick ethernet
It is wiring scheme. It is called thick because it consists of very large coaxial cable. It is also known as 10base5.
What are 2 basic components of thick net/thick ethernet
- NIC
2. Transceiver
Does NIC deals with digital aspects of network
Yes like error detection, CRC frames attachment check
What is AUI cable
Attachment unit interface cable connects NIC and transceiver.
What is the role of terminator
It stops electrical signals to bounce back otherwise electrical signal will bounce back as mirror do. So it stops interference.
What is connection multiplexer
Transceiver should not be used between close computers. Engineer find the solution in connection multiplexer. Connection multiplexer is just another transceiver with multiple pouts. Computer connects to connection multiplexer and then multiplexer connects to transceiver and then thick ethernet cable.
What is thin ethernet
It is formally known as 10base2. It uses thin version of a coaxial cable. It is much cheaper than thick net. There is no need of transceiver in it.
What is bio net connector
In case of thin net, we do not use AUI cables instead we use special type of connector called BNC, bio net connector. BNC directly connects to NIC.
What is T connector
It connects thin net to NIC
What are 3 wiring schemes
- Twisted pair ethernet
- Thick ethernet
- Think ethernet
Does NIC an I/O device
Yes
