Subnetting Part-06

Question-51

Which of the following is a multicast address? A) 2003::5734 B) fc00::d30f:b5e9 C) ff03::9c18:9b05 D) fe80::e05c:bea0 For your answer select only the letter (e.g. 'B').

The correct answer is: C

::1/128 is the loopback address ::FFFF:0:0/96 are the IPv4-mapped addresses. fe80::/10 are the link-local unicast. ff00::/8 are multicast addresses fc00::/7 are Unique Local Addresses

Question-52

Which of the following is a valid IPv6 address. Present your answer simply as the letter of the valid addres (e.g. 'A'). A?2001:50fa:a5d2:5a5a:6adf:6ca0 B?2001:10a6b::1d6f C?2001:db5x::d259 D?2001:94bd::512

The correct answer is: D

There is only one valid IPv6 address: A?An IPv6 address is made up of eight 16-bit blocks, not six. B?A valid IPv6 address is made up of 16-bit blocks, which are represented by up to four hexadecimal digits and cannot exceed the hex value 'ffff'. C?A valid IPv6 address uses hexadecimal values, which never go above 'f'. D?This is valid

Question-53

Are the following two IP addresses in the same subnet? Answer either 'yes' or 'no'. 2001:5c5f::6932 2001:9b1a::8738

The correct answer is: No

In IPv6, the first 48 bits are used for the routing prefix and the next 16 bits are used for the subnet ID. Because of this, the first 64 bits (or four 16-bit blocks) must be the same for two addresses to be on the same subnet.

Question-54

You have a device with a MAC address of cc-28-a5-d5-15-8f. What will be the automatically generated link-local address? For your answer select the correct letter (i.e. 'A'). A) fe80::ce28:a5ff:fed5:158f B) fe80::cc28:a5d5:158f C) 2003::cc28:a5d5:158f D) 2001::cc28:a5ff:fed5:158f

The correct answer is: A

Every device will have a unique MAC address. Because of this the MAC address can be used to create a unique IPv6 address. 0xFFFE is inserted into the middle of the MAC address to create a 64-bit length address, and the 7th bit of the address is flipped. This address is then prepended with fe80::/64.

Question-55

Which of the following is a valid IPv6 address. Present your answer simply as the letter of the valid addres (e.g. 'A'). A?2001:59ex::a64f B?2001:c98e::2992:f265:291f C?2001:108c9::efbb D?2001:e436:f485:df8:eb95:df8b

The correct answer is: B

There is only one valid IPv6 address: A?A valid IPv6 address uses hexadecimal values, which never go above 'f'. B?This is valid C?A valid IPv6 address is made up of 16-bit blocks, which are represented by up to four hexadecimal digits and cannot exceed the hex value 'ffff'. D?An IPv6 address is made up of eight 16-bit blocks, not six.

Question-56

Are the following two IP addresses in the same subnet? Answer either 'yes' or 'no'. 2001:eae6:f52c:4a75:5b1b:48ff:f344:4121 2001:eae6:f52c:e5d9:a6f2:ead0:3fe8:bca6

The correct answer is: No

In IPv6, the first 48 bits are used for the routing prefix and the next 16 bits are used for the subnet ID. Because of this, the first 64 bits (or four 16-bit blocks) must be the same for two addresses to be on the same subnet.

Question-57

Which of the following is a IPv4 mapped address? A) ::560d:db5e B) ::ffff:25.45.169.197 C) 2003::4ad D) ff04::b6a2:8f2b For your answer select only the letter (e.g. 'B').

The correct answer is: B

::1/128 is the loopback address ::FFFF:0:0/96 are the IPv4-mapped addresses. fe80::/10 are the link-local unicast. ff00::/8 are multicast addresses fc00::/7 are Unique Local Addresses

Question-58

Are the following two IP addresses in the same subnet? Answer either 'yes' or 'no'. 2001::4683:3097:dee5:638 2001::edbb:909a:8732:c1d3

The correct answer is: Yes

In IPv6, the first 48 bits are used for the routing prefix and the next 16 bits are used for the subnet ID. Because of this, the first 64 bits (or four 16-bit blocks) must be the same for two addresses to be on the same subnet.

Question-59

Contract the following IPv6 address:?00d3:009f:0000:4345:0000:952b:0000:0000

The correct answer is: d3:9f:0:4345:0:952b::

Remove leading zeros Use :: on the longest set of zeros possible, or on the leftmost set of zeros Do not use :: on a single 16-bit set of zeros IPv6 must be written in lowercase.

Question-60

Which of the following is a Loopback address? A) 2003::ecb9 B) ::1/128 C) fe80::4735:f080 D) 2003::cd82 For your answer select only the letter (e.g. 'B').

The correct answer is: B

::1/128 is the loopback address::FFFF:0:0/96 are the IPv4-mapped addresses.fe80::/10 are the link-local unicast.ff00::/8 are multicast addressesfc00

"Think of subnetting as the blueprint for your network, ensuring every segment has a clear purpose and efficient path."