Net+ 4.5/4.6 Lesson

Multiple Choice

How many addresses can IPv4 have?

• 256
• 65536
• 16777216
• 4294967296

Multiple Choice

What number format is IPv6?

• Binary format
• Decimal format
• Octal format
• Hexadecimal format

Multiple Choice

How many 16-bit numbers does an IPv6 address have?

• 12
• 8
• 10
• 6

Multiple Choice

IPv6 is expressed in hexadecimal; how many hex characters are there per section?

• 4
• 2
• 8
• 6

Multiple Choice

What address in IPv6 is like a public IPv4 address?

• Global Unicast Address
• Multicast Address
• Link-Local Address
• Unique Local Address

Multiple Choice

What 3 digits does a globally unique unicast IPv6 address start with?

• 100

• 300
• 500
• 001

Multiple Choice

The first 4 characters of a link-local IPv6 address are

• FE90
• FE80
• FD00
• FF80

Multiple Choice

The last 64 bits of a link-local address are reserved for?

• Gateway Address
• Interface Identifier
• Subnet Mask
• Global Address

Match

Match the IPv6 packet headers

• Describes the packet’s priority.

• Used for quality of service (QoS) management, such as for real-time streams. This is set to 0 for packets not part of any delivery sequence or structure.

• Indicates the length of the packet payload, up to a maximum of 64 KB; if the payload is bigger than that, this field is 0, and a special Jumbo Payload (4 GB) option is established.

• Used to describe what the next extension header (if any) is, or where the actual payload begins.

• Replaces the TTL field in IPv4 but performs the same function.

Traffic Class

Flow Label

Payload Length

Next Header

Hop Limit

• Traffic Class

• Flow Label

• Payload Length

• Next Header

• Hop Limit

Multiple Choice

The first 8 bits of a multicast address in IPv6 indicate what

• The address type indicating it is within the multicast scope.

• The address type indicating it is a unicast address.
• The address type indicating it is a broadcast address.
• The address type indicating it is a reserved address.

Multiple Choice

Which bits in IPv6 define multicast groups?

• The last 112 bits define multicast groups in IPv6.

• The first 32 bits (prefix 'FF00::/32') define multicast groups in IPv6.
• The last 8 bits (prefix 'FF80::/8') define multicast groups in IPv6.
• The first 16 bits (prefix 'FE00::/16') define multicast groups in IPv6.

Multiple Choice

IPv4 and IPv6 need to communicate because

• to allow faster internet speeds
• to simplify network configurations
• to reduce the number of IP addresses
• to ensure interoperability between devices using different IP versions

Multiple Choice

IPv4 and IPv6 dual stack means that

• It means that both IPv4 and IPv6 protocols are supported and operational on the same network.
• Both protocols are disabled on the network.
• IPv6 is used exclusively without IPv4.
• Only IPv4 is supported on the network.

Multiple Choice

IPv4/v6 tunneling means

• A method to encapsulate IPv4 packets within IPv6 packets or vice versa for communication.
• A technique to convert IPv4 addresses to IPv6 addresses directly.
• A way to increase the size of IPv4 packets for better performance.
• A method for routing IPv6 packets without any encapsulation.

Multiple Choice

The NAT64 method for IPv4/v6 means

• NAT64 is used for IPv4 to IPv6 communication.
• NAT64 only supports IPv6 to IPv6 communication.
• NAT64 is a method for routing IPv4 packets exclusively.
• NAT64 enables IPv6 to IPv4 communication.

Multiple Choice

In the table, what type of address for IPv6 represents prefix address 2000::/3?

• Global Unicast Address
• Unique Local Address
• Multicast Address
• Link-Local Address

Multiple Choice

In the table, what type of address for IPv6 represents prefix address fe80::/10?

• Global Unicast Address
• Unique Local Address
• Multicast Address
• Link-Local Address

Open Ended

Why is IPv6 important?