Ports
Onion Vibes
Handshake Vs. Shotgun
IP building
Protocols and their day jobs
100

What port is used for HTTP

80

100

This layer works with packets?

Internetwork/Network

100

TCP is famous for more reliable features, including a session opener called what?

Three way Handshake

100

IPv4 is made up of how many bits?

32

100

What does DNS do?

Resolve hostnames to IP addresses

200

What port is used for RDP?

3389

200

This layer accepts packets and turns them into segments

Transport

200

UDP due to lack of QOS features is better suited for what types of data?

VoIP, Streaming, Zoom meetings

200

IPv6 is made up of how many bits?

128

200

What does DHCP do?

Lease out IP configuration information (port 67, 68)

300

What application layer protocol uses ports 21, and 20?

FTP

300

This layer works with 1's and 0's

Network access

300

What are the 3 types of packets sent in a successful 3 way handshake

Syn, Ack, Syn-Ack

300

Which format is correct for an Ipv6 address:

1. x.x.x.x

2. fe80::1

3. 123:44444:13

2

300

What does telnet do?

Nothing because it is insecure and should not be used

Console line configuration of remote hosts (port 23)

400

What port does DNS use?

53

400

Depending on the protocol, the transport layer works with what?

Segments / Datagrams

400

UDP is not see as reliable, Why so?

No acknowledgement, No checking, SImply sending as fast as possible

400

What was the main reason IPv6 was invented?

To combat the shortage of IPv4 addresses

400

What does NTP do?

Set the time on hosts (port 123)

500

Rather than telnet, you should use what SSH which uses port?

22

500

Do the layers work together to take data from an application and send them across the network in perfect harmony?

Yes

500

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

500

You found the GIMME!!

Free points lol

500

What does SMTP do?

Send emails between email servers (port 25)

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