Jun 182011
 

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 X
ipconfig

2. What command shows IPv6 addresses configured on ethernet interfaces under Microsoft Windows?
netsh interface show
ifconfig /all
netsh
ifconfig
ipconfig X

3. Under FreeBSD, what does the generic tunneling interface start with?
png
gif X
fxp
jif

4. Under Linux, what kernel module needs to be loaded to support IPv6 networking?
ip6tables
eepro1000
ipv6 X
sit

5. Are routers allowed to fragment IPv6 packets?
Yes
No X

6. How many bytes are in an IPv6 address?
1
128
16 X
8

7. How many /48 subnets are available in a /32 prefix?
256 XX
6
128 XX
65536 X

8. Which protocol is used for manually configured tunnels?
6to4
6in4 X
Teredo

9. Which of the following is the IPv6 documentation prefix?
::/8 XX
2002::/16 XX
2001:db8::/32 X
fe80::/10

10. Which of the following is the IPv6 link-local prefix?
2002::/16
fe80::/10 X
::/8
ff00::/8

11. Which of the following is the IPv6 multicast prefix?
::/8
ff00::/8 X
fe80::/10
2002::/16

12. Which of the following is the IPv6 ULA (unique local addresses) prefix?
fe80::/10
fc00::/7 X
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 X
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 X
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 X

16. On Linux, what is the IPv6 ping command?
pong
pingit
plonk!
ping6 x

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 X
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 X
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 X
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 X
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 X
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 X
mtr -6 he.net
ping4 he.net
mtr4 he.net

  One Response to “HE.net IPV6 Certification questions and answers — Professional”

  1. Highly descriptive article, I enjoyed that a lot.
    Will there be a part 2?

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