Ports
What port is used for HTTP
80
This layer works with packets?
Internetwork/Network
TCP is famous for more reliable features, including a session opener called what?
Three way Handshake
IPv4 is made up of how many bits?
32
What does DNS do?
Resolve hostnames to IP addresses
What port is used for RDP?
3389
This layer accepts packets and turns them into segments
Transport
UDP due to lack of QOS features is better suited for what types of data?
VoIP, Streaming, Zoom meetings
IPv6 is made up of how many bits?
128
What does DHCP do?
Lease out IP configuration information (port 67, 68)
What application layer protocol uses ports 21, and 20?
FTP
This layer works with 1's and 0's
Network access
What are the 3 types of packets sent in a successful 3 way handshake
Syn, Ack, Syn-Ack
Which format is correct for an Ipv6 address:
1. x.x.x.x
2. fe80::1
3. 123:44444:13
2
What does telnet do?
Nothing because it is insecure and should not be used
Console line configuration of remote hosts (port 23)
What port does DNS use?
53
Depending on the protocol, the transport layer works with what?
Segments / Datagrams
UDP is not see as reliable, Why so?
No acknowledgement, No checking, SImply sending as fast as possible
What was the main reason IPv6 was invented?
To combat the shortage of IPv4 addresses
What does NTP do?
Set the time on hosts (port 123)
Rather than telnet, you should use what SSH which uses port?
22
Do the layers work together to take data from an application and send them across the network in perfect harmony?
Yes
TCP uses a window size, what is the job of the window size while data is being transmitted?
To give the sender/receiver a chance to acknowledge that all data in the previous window has been sent
You found the GIMME!!
Free points lol
What does SMTP do?
Send emails between email servers (port 25)