Jun 182011
 

http://ipv6.he.net/certification/

Guru technical test — not done yet, despite being sage!
covers technical knowledge of IPv6 routing and IPv6 related protocols.

When using auto-configuration, what is used from the host to configure the last 64bits of the IPv6 address?
Random number generator is used
Nothing on the host is used
The IPv4 address on the ethernet interface
The MAC address of the ethernet interface
The loopback interface IPv4 address
Question 2
A MAC address is only 48bits. So when using auto-configuration, what is used to fill in the missing 16bits?
FFFF
FE80
0
Nothing, a MAC is really 64bits
FFFE
Question 3
On many routers, which one of the following commands is used to configure an IPv6 address on an interface?
ip address 2001:A:B:C::1/64
ipv6 address 2001:A:B:C:1
ipv6 address 2001:A:B:C::1/64
ipv6 address 2001:A:B:C:1/64
Question 4
What is the length of an IPv6 packet header?
40 bytes
128 bits
16 bytes
32 bits
Question 5
Which of the following organizations assigns IPv6 addresses?
ARIN
RIPE
APNIC
LACNIC
AFRINIC
All of the above
Question 6
What protocol number is used for 6in4 IPv4 packets?
41
6
53
4
Question 7
Which of the following is the 6to4 IPv6 prefix?
ff00::/8
2001:0000::/32
2001:db8::/32
2002::/16
Question 8
Which of the following well-known prefixes is used for Teredo?
2001:0000::/32
2002::/16
ff00::/8
2001:db8::/32
Question 9
Which of the following is an IPv4-mapped IPv6 address?
fe80::20c:dbff:fefb:232b
2001:db8::/32
::10.10.10.2
::ffff:10.10.10.2
Question 10
On operating systems that support it, IPv4-mapped IPv6 addresses are used to:
make it so that you have to write separate code for IPv6 socket calls and IPv4 socket calls
map IPv4 addresses to an IPv6 address to make it so that IPv6 socket system calls can be used with both IPv4 or IPv6 addresses
map IPv6 addresses to IPv4
Question 11
Which of the following is an IPv4-compatible IPv6 address?
fe80::20c:dbff:fefb:232b
::ffff:10.10.10.2
2001:db8::/32
::10.10.10.2
Question 12
IPv4-compatible IPv6 addresses are deprecated in RFC 4291.
True
False
Question 13
Should you ever see packets with IPv4-mapped IPv6 addresses on the wire (outside of a host)?
No
Yes
Question 14
Which version of OSPF supports IPv6?
OSPFv3
OSPFv6
OSPFv0
OSPFv1
Question 15
Which of the following can be used by an IPv6 host to learn the address of a default gateway?
stateless autoconfiguration
neighbor introduction protocol
neighbor discovery protocol
international autoconfiguration
Question 16
Which of the following can be used by a host to learn its own IPv6 address?
neighbor discovery protocol
international autoconfiguration
neighbor introduction protocol
stateless autoconfiguration
Question 17
If you translate IPv4 packets to IPv6 or IPv6 packets to IPv4, this is called:
6in4
completely compatible with all protocols
nat64/dns64/ds-lite
not possible
Question 18
On many routers, what command shows IPv6 routes?
show ipv6 ospf summary
show ipv6 route
show ipv6 bgp summary
Question 19
On many routers, what command shows IPv6 BGP sessions?
show ipv6 ospf summary
show ipv6 bgp route
show ipv6 bgp summary
Question 20
On many routers, what command shows IPv6 BGP routes?
sh ipv6 ospf
sh ipv6 bgp

  2 Responses to “HE.net IPV6 Certification questions and answers — Guru”

  1. Q1) The MAC address of the ethernet interface
    Q2) FFFE
    Q3) ipv6 address 2001:A:B:C::1/64
    Q4) 40 bytes
    Q5) All of the above
    Q6) 41
    Q7) 2002::/16
    Q8) 2001:0000::/32
    Q9) :ffff:10.10.10.2
    Q10) map IPv4 addresses to an IPv6 address to make it so that IPv6 socket system calls can be used with both IPv4 or IPv6 addresses
    Q11) ::10.10.10.2
    Q12) True
    Q13) No
    Q14) OSPFv3
    Q15) neighbor discovery protocol
    Q16) stateless autoconfiguration
    Q17) nat64/dns64/ds-lite
    Q18) show ipv6 route
    Q19) show ipv6 bgp summary
    Q20) sh ipv6 bgp

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