NCTI question with complete solution
graded A+ 2023 passed
Question - correct answer Answer
What was the primary driver for development of IPv6? - correct answer To address the issue of IPv4
address exhaustion.
When comparing IPv4 to IPv6, which of the following statements is true - correct answer IPv4 uses a 32-
bit address scheme, while IPv6 uses a 128-bit address scheme.
In IPv6-enabled networks, static addressing is no longer allowed. - correct answer FALSE
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. - correct answer TRUE
In IPv6, Quality of Service (QoS) is radically changed, utilizing only the flow label for all QoS provisioning.
- correct answer FALSE
Unfortunately, only RIP (Routing Information Protocol) and OSPF (Open Shortest Path First) are capable
of routing IPv6. - correct answer FALSE
What size are IPv4 and IPv6 addresses, respectively? - correct answer 32-bits, 128-bits.
IPv4 addresses are written in dotted-decimal. Which of these best describes how IPv6 addresses are
written? - correct answer Hexadecimal 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). - correct answer FALSE
, An example of a single 16-bit "hextet" in an IPv6 address could be shown like this: - correct
answer :54a2:.
What is an "IID"? - correct answer Interface Identifier.
How large is a typical user-centric IPv6 subnet size, for a single subnet, using CIDR notation? - correct
answer /64
What does the notation "2000::/3" mean, in terms of the initial IETF allocation for IPv6 global unicast
space? - correct answer That 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? - correct
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? - correct answer /48.
What is a unique aspect of an "anycast" address? - correct answer It 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: - correct answer The location in the
IPv6 routing hierarchy of a particular subnet.
The rightmost 64-bits of an IPv6 unicast address typically describe: - correct answer The specific
interface on the subnet.
The main types of IPv6 addresses are: - correct answer Unicast, anycast, and multicast.
What does the term "ULA" mean? - correct answer Unique Local Addresses.
graded A+ 2023 passed
Question - correct answer Answer
What was the primary driver for development of IPv6? - correct answer To address the issue of IPv4
address exhaustion.
When comparing IPv4 to IPv6, which of the following statements is true - correct answer IPv4 uses a 32-
bit address scheme, while IPv6 uses a 128-bit address scheme.
In IPv6-enabled networks, static addressing is no longer allowed. - correct answer FALSE
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. - correct answer TRUE
In IPv6, Quality of Service (QoS) is radically changed, utilizing only the flow label for all QoS provisioning.
- correct answer FALSE
Unfortunately, only RIP (Routing Information Protocol) and OSPF (Open Shortest Path First) are capable
of routing IPv6. - correct answer FALSE
What size are IPv4 and IPv6 addresses, respectively? - correct answer 32-bits, 128-bits.
IPv4 addresses are written in dotted-decimal. Which of these best describes how IPv6 addresses are
written? - correct answer Hexadecimal 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). - correct answer FALSE
, An example of a single 16-bit "hextet" in an IPv6 address could be shown like this: - correct
answer :54a2:.
What is an "IID"? - correct answer Interface Identifier.
How large is a typical user-centric IPv6 subnet size, for a single subnet, using CIDR notation? - correct
answer /64
What does the notation "2000::/3" mean, in terms of the initial IETF allocation for IPv6 global unicast
space? - correct answer That 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? - correct
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? - correct answer /48.
What is a unique aspect of an "anycast" address? - correct answer It 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: - correct answer The location in the
IPv6 routing hierarchy of a particular subnet.
The rightmost 64-bits of an IPv6 unicast address typically describe: - correct answer The specific
interface on the subnet.
The main types of IPv6 addresses are: - correct answer Unicast, anycast, and multicast.
What does the term "ULA" mean? - correct answer Unique Local Addresses.
