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NCTI exam 2023 with 100% correct answers
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NCTI exam 2023 with 100% correct answers
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NCTIWhat 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.
The function of Unique Local Addresses are: - correct answer -For use within a network enclave, and not
routed or announced to the public Internet.
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