Palo Alto Networks (PANW) Certified Cybersecurity Entry-level Technician (PCCET) Practice Exam

How many bytes are in an IPv6 address?

1. 4

2. 8

3. 16

4. 32

The correct answer is: 16

An IPv6 address consists of 128 bits, which can be broken down into 16 bytes. Each byte is made up of 8 bits, and when you divide 128 by 8, you arrive at 16. This allows for a significantly larger address space compared to IPv4, which only uses 32 bits or 4 bytes. The expanded byte size in IPv6 addresses accommodates the increasing number of devices and networks in the world, providing necessary unique addresses. This is crucial for the functioning of the internet as it continues to grow. The other choices do not accurately represent the byte count of an IPv6 address, making 16 the only correct answer.