Rule 1 (Leading Zeros)
The shortened version of the segment 09f0 using Rule 1.
What is 9f0?
The maximum number of times a "::" can appear in a valid address.
What is 1?
The total number of hextets (segments) in a Preferred Format address.
What is 8?
The compressed version of 0000:0000:0000:0000:0000:0000:0000:0001.
What is ::1?
Expand the hextet a3 to its full 4-digit Preferred Format.
What is 00a3?
The single digit used to represent 0000 after omitting leading zeros.
What is 0?
The double colon is used to replace a contiguous string of segments consisting of this value.
What is all zeros (0000)?
The official term for the format written as x:x:x:x:x:x:x:x.
What is Preferred Format?
The term used for an address that has used both Rule 1 and Rule 2 to reduce digits.
What is Compressed Format?
Expand the hextet 0 to its full 4-digit Preferred Format.
What is 0000?
The Rule 1 version of the segment 00ab.
What is ab?
If an address has two zero-strings of equal length, this is the one that best practice says to replace.
What is the first string?
The number of hexadecimal digits found in one hextet of a Preferred Format address.
What is 4?
The compressed version of fe80:0000:0000:0000:0123:4567:89ab:cdef.
What is fe80::123:4567:89ab:cdef?
How many segments are missing (represented by the double colon) in the address 2001:db8:abcd::1234?
What is 4?
The rule that prevents you from shortening abc0 to abc.
What is "Rule 1 only applies to leading zeros"? (or Trailing Zero rule)
The reason the double colon cannot be used twice in the same address.
What is "it would result in more than one possible address"? (or Ambiguity)
True or False: 2001:0DB8:0000:1111:0000:0000:0000:0200 is a valid Preferred Format address.
What is True? (Addresses are not case-sensitive)
The compressed version of 2001:0db8:0000:1111:0000:0000:0000:0200.
What is 2001:db8:0:1111::200?
The Preferred Format expansion of 2001:db8:a:1:c012:90ff:fe90:1.
What is 2001:0db8:000a:0001:c012:90ff:fe90:0001?
Apply Rule 1 ONLY (no double colons) to this entire address: 0000:0db8:000a:0001:c012:90ff:fe90:0000.
Hint: Every segment must still be separated by a colon, and trailing zeros must stay exactly where they are.
What is 0:db8:a:1:c012:90ff:fe90:0?
Identify the specific "Best Practice" error in this compressed address: 2001:db8::1:0:0:1.
Hint: Look at the length of the replaced zero string versus the zero string left in the middle.
What is "the double colon was not used on the longest string of zeros"?
Provide the 32-digit Preferred Format version of the address :: .
Hint: You must provide all 8 segments, and each segment must have exactly 4 digits.
What is 0000:0000:0000:0000:0000:0000:0000:0000?
Fully compress this address using Best Practice: 2001:0db8:0000:0000:ab00:0000:0000:0000.
(Hint: There is a group of two zero-hextets and a group of three zero-hextets. Choose wisely.)
What is 2001:db8:0:0:ab00::?
Provide the Preferred Format expansion of fe80::0.
Hint: The last segment is a single 0, and the :: represents all the segments in between. You still need 8 total segments.
What is fe80:0000:0000:0000:0000:0000:0000:0000?