Which statement(s) about IPv6 addresses are true? Leading zeros are r...
In order to shorten the written length of an IPv6 address, successive fields of zeros may be replaced by double colons. In trying to shorten the address further, leading zeros may also be removed. Just as with IPv4, a single device's interface can have more than one address; with IPv6 there are more types of addresses and the same rule applies. There can be link-local, global unicast, and multicast addresses all assigned to the same interface.
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Which statement(s) about IPv6 addresses are true? Leading zeros are r...
Explanation:
IPv6 (Internet Protocol version 6) is the most recent version of the Internet Protocol, designed to replace IPv4. It uses a 128-bit address format, allowing for a significantly larger number of unique addresses compared to IPv4.
Statements:
a) Leading zeros are required.
This statement is false. Leading zeros in each field of an IPv6 address are optional. For example, the address 2001:0db8:0000:0000:0000:0000:1428:57ab can be written as 2001:db8:0:0:0:0:1428:57ab. Leading zeros can be omitted to simplify the address.
b) Two colons (::) are used to represent successive hexadecimal fields of zeros.
This statement is true. The double colon (::) can be used to represent one or more successive hexadecimal fields of zeros. This compression technique can only be used once in an IPv6 address to avoid ambiguity. For example, the address 2001:0db8:0000:0000:0000:0000:1428:57ab can be compressed as 2001:db8::1428:57ab.
c) Two colons (::) are used to separate fields.
This statement is false. Colons are used to separate fields in an IPv6 address, but the double colon (::) is used for compression, not separation. The fields are separated by colons, such as 2001:0db8:0000:0000:0000:0000:1428:57ab.
d) A single interface will have multiple IPv6 addresses of different types.
This statement is true. A single interface can have multiple IPv6 addresses of different types. Some common types of IPv6 addresses include link-local, global unicast, and multicast addresses. Each type of address serves a specific purpose in communication.
Conclusion:
From the given statements, options 2 and 4 are true. Leading zeros are not required in IPv6 addresses, and two colons (::) are used to represent successive hexadecimal fields of zeros. Additionally, a single interface can have multiple IPv6 addresses of different types. Therefore, the correct answer is option B.
Which statement(s) about IPv6 addresses are true? Leading zeros are r...
B