IPV6 Certification questions and answers

[LuD]

stub. should add my noes, queries and questions here from the certtification process for future reference.



[update: 2012-02-10. I've decided to go through the whole process again, just for giggles. I'll document it this time]

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0. Newbie Test

1. How many bits are in an IPv6 address?
128 X
64
32
48

2. Which of the following choices is a valid IPv6 address?
2001:0DB8:HE:6939::1
ipv6.example.com
192.168.0.1
2001:0DB8::0::FF2e:1
2001:0DB8:0:FF2E::1 X

3. How many /64 subnets are available in a /48 prefix?
256
340,282,366,920,938,463,463,374,607,431,768,211,456
18,446,744,073,709,551,616
65536 X

4. How many available IPv6 addresses are there in a /64 allocation?
18,446,744,073,709,551,616 X
65536
4,294,967,296
2^128

5. What operating systems currently support IPv6?
Linux
BSD
MacOSX
Vista/Windows 2008
All of the these support IPv6 X


1. Enthusiast Test

Covers technical knowledge of ping and traceroute commands on Linux and Windows.


1. What command do you use to ping an IPv6 address on Free Open Source UNIX platforms such as Linux, FreeBSD, etc?
ping -A inet6
ping --ipv6
ping6 X
pingsix


2. What command do you use to traceroute to an IPv6 address on Free Open Source UNIX platforms such as Linux, FreeBSD, etc?
traceroute -A inet6
traceroute --inet6
traceroute6 X
traceroutesix

3. What command do you use to ping an IPv6 address on a Microsoft Windows platform?
pingsix
ping --inet6
ping X
ping --ipv6

4. What command do you use to traceroute to an IPv6 address on a Microsoft Windows platform?
traceroute
traceroute6
tracert --ipv6
tracert X

5. IPv6 addresses are written using what number base?
hexadecimal (base 16) X
octal (base 8)
binary (base 2)
decimal (base 10)

6. Hexadecimal digits are represented by:
0 to 9
0 to 9 and A to F X
0 to 7
0 and 1


2. Administrator Test

Covers technical knowledge of DNS and general IPv6 topics.

1. On Redhat, CentOS, and Fedora Core systems that don't accept ::/0 as the IPv6 default route, which of the following should you use instead?
::1/128
fe80::/10
0.0.0.0
2000::/3 X

2. When configuring forward DNS entries for use with an IPv6 address, what record type do you use?
AAAA X
PTR
mysql
A

3. When configuring reverse DNS with BIND for addresses in the IPv6 allocation 2001:A:B:C::/64, what is the correct format for the zone?
2.0.0.1.0.0.0.A.0.0.0.B.0.0.0.C
C.0.0.0.B.0.0.0.A.0.0.0.1.0.0.2.ip6.arpa X
2.0.0.1.0.0.0.A.0.0.0.B.0.0.0.C.ip6.arpa
2.0.0.1.A.B.C
C.B.A.1.0.0.2.ip6.arpa

4.What is the IPv6 default route?
::/0 X
0.0.0.0
127.0.0.1
::1/128

5. What is the IPv6 localhost address?
::/0
::1/128 X
127.0.0.1
0.0.0.0

6. Which of the following is a link-local address?
::1 XX
::
fe80::20c:dbff:fefb:232b X
3ffe:3200::/32

7. Which of the following URLs specifies a literal IPv6 address correctly?
ipv6://2001:470:0:64::2
http://[2001:470:0:64::2] X
http:[2001:470:0:64::2]
http://2001:470:0:64::2

8. Which of the following URLs specifies a literal IPv6 address and port number correctly?
https://2001:0db8:85a3:08d3:1319:8a2e:0370:7344:443
https:[2001:0db8:85a3:08d3:1319:8a2e:0370:7344]:443
https://[2001:0db8:85a3:08d3:1319:8a2e:0370:7344].443
https://[2001:0db8:85a3:08d3:1319:8a2e:0370:7344]:443 X

9. If you run native IPv4 and IPv6 at the same time this is called:
6in4
6and4
NAT-PT
Dual stack X

10. How do you use the dig command to get the IPv6 address record for domain he.net?
dig he.net 6
dig he.net A
dig he.net AAAA X

11. How do you use the dig command to get the PTR record for the IPv6 address 2001:470:0:76::2?
dig 2001:470:0:76::2
dig 2001:470:0:76::2 PTR
dig -x 2001:470:0:76::2 X


3. Professional Test

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