NCTI Final Exams: Progression Field Tech 2-3/3-
4/4-5/5-6 Conventional Exams (Latest Updates
2024/ 2025 STUDY BUNDLE WITH COMPLETE
SOLUTIONS) Questions and Verified Answers|
100% Correct| Grade A
What was the primary driver for development of IPv6? - ANSWERTo address the
issue of IPv4 address exhaustion.
When comparing IPv4 to IPv6, which of the following statements is true -
ANSWERIPv4 uses a 32-bit address scheme, while IPv6 uses a 128-bit address
scheme.
In IPv6-enabled networks, static addressing is no longer allowed. - ANSWERFALSE
Without IPv4's network address translation (NAT), IPv6 offers simpler packet
construction and better support for peer-to-peer and mobile-to-mobile types of
communications. - ANSWERTRUE
In IPv6, Quality of Service (QoS) is radically changed, utilizing only the flow label for
all QoS provisioning. - ANSWERFALSE
Unfortunately, only RIP (Routing Information Protocol) and OSPF (Open Shortest
Path First) are capable of routing IPv6. - ANSWERFALSE
What size are IPv4 and IPv6 addresses, respectively? - ANSWER32-bits, 128-bits.
IPv4 addresses are written in dotted-decimal. Which of these best describes how
IPv6 addresses are written? - ANSWERHexadecimal notation, dropping leading zeros
in each hextet, using the "::" notation to represent missing all-zero hextets.
IPv6 addresses are written in Binary Coded Decimal (BCD). - ANSWERFALSE
An example of a single 16-bit "hextet" in an IPv6 address could be shown like this: -
ANSWER:54a2:.
What is an "IID"? - ANSWERInterface Identifier.
How large is a typical user-centric IPv6 subnet size, for a single subnet, using CIDR
notation? - ANSWER/64
What does the notation "2000::/3" mean, in terms of the initial IETF allocation for
IPv6 global unicast space? - ANSWERThat global unicast addresses always start with
the first three bits "001" (first 3 bits of the address per the "/3" notation).
, Which of these prefix lengths would be a reasonable assignment for a service
provider? - ANSWER/32
Which of these prefix lengths would be a reasonable assignment for a small single-
homed commercial enterprise with no more than 15 or 20 networks? - ANSWER/48.
What is a unique aspect of an "anycast" address? - ANSWERIt is an address typically
assigned to more than one interface, typically on different nodes.
The leftmost 64-bits of an IPv6 unicast address typically describe: - ANSWERThe
location in the IPv6 routing hierarchy of a particular subnet.
The rightmost 64-bits of an IPv6 unicast address typically describe: - ANSWERThe
specific interface on the subnet.
The main types of IPv6 addresses are: - ANSWERUnicast, anycast, and multicast.
What does the term "ULA" mean? - ANSWERUnique Local Addresses.
The function of Unique Local Addresses are: - ANSWERFor use within a network
enclave, and not routed or announced to the public Internet.
Link-local addresses come from which part of the IPv6 address space? -
ANSWERFE8::/10.
IPv6 Multicast addresses always fall within what prefix? - ANSWERFF00::/8.
What kind of unicast address does every IPv6 interface have to have? - ANSWERLink-
local.
EUI-64 construction includes a unique marker for what purpose? - ANSWERA bit
within the IID (rightmost 64-bits) set to indicate the IID was built from a globally-
unique token.
The scope over which link-local IPv6 addresses must be unique is: - ANSWEROn the
link where the interface is configured.
In the multicast address FF02::1, the "0" describes: - ANSWERThe "flags" for the
address.
Which is an example of an IPv6 multicast address that a router would normally listen
for? - ANSWERFF02::1 (all nodes multicast, interface scope).
Which IPv6 multicast address does a DHCPv6 server listen on? - ANSWERFF05::1:3.
4/4-5/5-6 Conventional Exams (Latest Updates
2024/ 2025 STUDY BUNDLE WITH COMPLETE
SOLUTIONS) Questions and Verified Answers|
100% Correct| Grade A
What was the primary driver for development of IPv6? - ANSWERTo address the
issue of IPv4 address exhaustion.
When comparing IPv4 to IPv6, which of the following statements is true -
ANSWERIPv4 uses a 32-bit address scheme, while IPv6 uses a 128-bit address
scheme.
In IPv6-enabled networks, static addressing is no longer allowed. - ANSWERFALSE
Without IPv4's network address translation (NAT), IPv6 offers simpler packet
construction and better support for peer-to-peer and mobile-to-mobile types of
communications. - ANSWERTRUE
In IPv6, Quality of Service (QoS) is radically changed, utilizing only the flow label for
all QoS provisioning. - ANSWERFALSE
Unfortunately, only RIP (Routing Information Protocol) and OSPF (Open Shortest
Path First) are capable of routing IPv6. - ANSWERFALSE
What size are IPv4 and IPv6 addresses, respectively? - ANSWER32-bits, 128-bits.
IPv4 addresses are written in dotted-decimal. Which of these best describes how
IPv6 addresses are written? - ANSWERHexadecimal notation, dropping leading zeros
in each hextet, using the "::" notation to represent missing all-zero hextets.
IPv6 addresses are written in Binary Coded Decimal (BCD). - ANSWERFALSE
An example of a single 16-bit "hextet" in an IPv6 address could be shown like this: -
ANSWER:54a2:.
What is an "IID"? - ANSWERInterface Identifier.
How large is a typical user-centric IPv6 subnet size, for a single subnet, using CIDR
notation? - ANSWER/64
What does the notation "2000::/3" mean, in terms of the initial IETF allocation for
IPv6 global unicast space? - ANSWERThat global unicast addresses always start with
the first three bits "001" (first 3 bits of the address per the "/3" notation).
, Which of these prefix lengths would be a reasonable assignment for a service
provider? - ANSWER/32
Which of these prefix lengths would be a reasonable assignment for a small single-
homed commercial enterprise with no more than 15 or 20 networks? - ANSWER/48.
What is a unique aspect of an "anycast" address? - ANSWERIt is an address typically
assigned to more than one interface, typically on different nodes.
The leftmost 64-bits of an IPv6 unicast address typically describe: - ANSWERThe
location in the IPv6 routing hierarchy of a particular subnet.
The rightmost 64-bits of an IPv6 unicast address typically describe: - ANSWERThe
specific interface on the subnet.
The main types of IPv6 addresses are: - ANSWERUnicast, anycast, and multicast.
What does the term "ULA" mean? - ANSWERUnique Local Addresses.
The function of Unique Local Addresses are: - ANSWERFor use within a network
enclave, and not routed or announced to the public Internet.
Link-local addresses come from which part of the IPv6 address space? -
ANSWERFE8::/10.
IPv6 Multicast addresses always fall within what prefix? - ANSWERFF00::/8.
What kind of unicast address does every IPv6 interface have to have? - ANSWERLink-
local.
EUI-64 construction includes a unique marker for what purpose? - ANSWERA bit
within the IID (rightmost 64-bits) set to indicate the IID was built from a globally-
unique token.
The scope over which link-local IPv6 addresses must be unique is: - ANSWEROn the
link where the interface is configured.
In the multicast address FF02::1, the "0" describes: - ANSWERThe "flags" for the
address.
Which is an example of an IPv6 multicast address that a router would normally listen
for? - ANSWERFF02::1 (all nodes multicast, interface scope).
Which IPv6 multicast address does a DHCPv6 server listen on? - ANSWERFF05::1:3.
