3 minutes
http://ipv6.he.net/certification/
Covers technical knowledge of well known IPv6 prefixes and expands on your understanding of IPv6 related Linux and Windows commands.
1. What command shows IPv6 addresses configured on ethernet interfaces under UNIX (Linux, FreeBSD, etc.)?
- ip -a
- ifconfig /all
- ip link show
- ifconfig ✅
- ipconfig
2. What command shows IPv6 addresses configured on ethernet interfaces under Microsoft Windows?
- netsh interface show
- ifconfig /all
- netsh
- ifconfig
- ipconfig ✅
3. Under FreeBSD, what does the generic tunneling interface start with?
- png
- gif ✅
- fxp
- jif
4. Under Linux, what kernel module needs to be loaded to support IPv6 networking?
- ip6tables
- eepro1000
- ipv6 ✅
- sit
5. Are routers allowed to fragment IPv6 packets?
- Yes
- No ✅
6. How many bytes are in an IPv6 address?
- 1
- 128
- 16 ✅
- 8
7. How many /48 subnets are available in a /32 prefix?
- 256
- 6
- 128
- 65536 ✅
8. Which protocol is used for manually configured tunnels?
- 6to4
- 6in4 X
- Teredo
9. Which of the following is the IPv6 documentation prefix?
- ::/8
- 2002::/16
- 2001:db8::/32 ✅
- fe80::/10
10. Which of the following is the IPv6 link-local prefix?
- 2002::/16
- fe80::/10 ✅
- ::/8
- ff00::/8
11. Which of the following is the IPv6 multicast prefix?
- ::/8
- ff00::/8 ✅
- fe80::/10
- 2002::/16
12. Which of the following is the IPv6 ULA (unique local addresses) prefix?
- fe80::/10
- fc00::/7 ✅
- 2002::/16
- ff00::/8
13. Which of the following is a subnet of 2001:db8::/32?
- fe80::20c:dbff:fefb:232b
- 2001:db8:7fa5::/48 ✅
- 2001:db9::/32
- 2001:db8::/16
14. On Linux, how would you traceroute to the IPv6 address of he.net?
- owamp he.net
- traceroute6 he.net ✅
- smokeping he.net
- tracert6 he.net
15. On Windows Vista, how would you traceroute to the IPv6 address of he.net?
- smokeping he.net
- traceroute6 he.net
- owamp he.net
- tracert he.net ✅
16. On Linux, what is the IPv6 ping command?
- pong
- pingit
- plonk!
- ping6 ✅
17. Which command forces the UNIX command ssh to use IPv6 to connect to example.com (useful for domains with both A and AAAA records)?
- ssh -4 example.com
- ssh -6 example.com ✅
- putty example.com
- ssh6 example.com
18. You would force the UNIX command ssh to use IPv4 (useful if it had both A and AAAA records) to connect to example.com using which command?
- ssh4 example.com
- ssh -6 example.com
- ssh -4 example.com ✅
- putty example.com
19. Which command forces the UNIX command wget to use IPv6 to make a HTTP GET request to he.net (useful for domains with both A and AAAA records)?
- http he.net
- wget -4 he.net
- wget -6 he.net ✅
- wget6 he.net
20. Which command forces the UNIX command wget to use IPv4 to make a HTTP GET request to he.net (useful for domains with both A and AAAA records)?
- wget -4 he.net ✅
- http he.net
- wget -6 he.net
- wget4 he.net
21. Which command forces the UNIX command mtr to use IPv6 to traceroute to he.net (useful for domains with both A and AAAA records)?
- mtr6
- mtr -4 he.net
- mtr -6 he.net ✅
- ping6 he.net
22. Which command forces the UNIX command mtr to use IPv4 to traceroute to he.net (useful for domains with both A and AAAA records)?
- mtr -4 he.net ✅
- mtr -6 he.net
- ping4 he.net
- mtr4 he.net