Questions about protocols and network layers?

Question

Hello, I have some questions is anybody could help me:
The questions ask:
Provide transport layer protocol and default port's that FTP, SSH, Telnet, Web, Secure web, DNS and TFTP

So far I have
FTP: 7
SSH: 7 port 22
Telnet: 7, port 23
Web?
Secure Web?
DNS: 7, 53
TFTP 6, 69
Does anybody know what is he talking about WEB and Secure web? is he asking about IP HTTPS

Answer 1

WEB is port 80 standard http

Secure Web is port 443 https

Why are we doing your homework when a search engine would easily answer this with lots of detail??? :)

Answer 2

Protection against DNS Query Flood attacks from real or fake IP address sources, DNS Reply Flood attack, DNS Cache Poisoning attacks, DNS Protocol vulnerability attacks and DNS Reflection attacks. https://prohoster.info/en/zhashchita-ot-ddos

Answer 3

Ftp uses 20/21, data is 20 control 21 both TCP.



When the question is transport layer protocol, I would assume:



TCP or UDP.



Like DNS is both TCP and UDP, SSH is TCP only, telnet is TCP only, etc.

Answer 4

Web is probably HTTP

Secure web is probably HTTPS