Codes

Question 1

HTTP status codes

Answer 1

100 : informational 
200 : ok- success
300 : redirect
400 : client error 
500 : server error

Question 2

ICMP packet codes

Answer 2

0 - echo reply 
3 - destination unreachable
4 - flow control 
5 - redirect 
8 - echo request
11 - TTL exceeded