Chapter 4 - Networks And The Effects Of Using Them Flashcards
1
Q
Why do we network?
A
- To share data
- To communicate
- To share resources eg. Printers and scanners
2
Q
Parts of a data packet
A
Header, Body, Footer
3
Q
What is contained in the Header of a data packet?
A
- Destination addresses - IP address
- Senders address
- Packet number - out of the total
- Sequence number/Packet length
- ACK number (if set) - tells the sender if the packet had been received
- Checksum/digit - for error detection
- Time to live
- Padding - separate header and body
4
Q
What does the router do?
A
Date to be sent between different types of networks
Which is used to connect computers and devices to the Internet
Can be used to connect a want to
WAN to a LAN
5
Q
Define router
A
- An intelligent device that can perform the following:
- Read read, met data and decide to send it
- Decide the fastest route
- It can format the data suit the destination network
- Filter traffic
- Exchange protocol, information across networks
6
Q
Define IP address
A
Internet protocol address - unique number assigned to every device connected to the internet
Is subject to change depending on location
7
Q
Define MAC address
A
Media access control
Unique identifier given to every device by the manufacturer
Does not change
8
Q
What is a Routing table
A
Stores all of the IP addresses of the various destinations to know where to send the data packets and the route to use
