IP and Routing Concepts

Question 1

Which mathematical base does the binary system use, and which digits represent
it?

Answer 1

Base 2, two digits: 0 and 1

Question 2

What is a bit?

Answer 2

smallest unit of data in a computer. Single binary value, either 0 and1

Question 3

What is an octet

Answer 3

8-bit string (IPv4 consists of 4 octets)

Question 4

Which mathematical base does the hexadecimal system use, and which digits
represent it?

Answer 4

Base 16, 10 digits and 6 characters: 0–9, A, B, C, D, E, F

(Letters represent 10-15)

Question 5

Binary number: 110101101001
Find hexadecimal number

Answer 5

D 6 9 (Group into sets of four, convert each group to hex, combine digits)

Question 6

How long is an IPv6 address in bits?

Answer 6

128 bits

Question 7

What is the corresponding IPv6 term for an IPv4 octet?

Answer 7

A “hextet”

Question 8

Name two IPv6 unicast address types (Lists 4)

Answer 8

1. Global unicast (the equivalent of an IPv4 public address)
2. Link-local FE80::/10 (the equivalent of an IPv4 APIPA address)
3. Loopback::1/128 (the equivalent of an IPv4 loopback address)
4. Unique-local FC00::/7 (the equivalent of an IPv4 private address)

Question 9

What is the default suffix of an IPv6 address?

Answer 9

/64

Question 10

What are the three parts of an IPv6 with a suffix of /64?

Answer 10

• First 45 bits (3 hextets): Global routing prefix, global identifier
• First 16 bits (1 hextet): Subnet ID, network identifier
• Last 64 bits (4 hextets): Interface ID, host identifier

Question 11

Global Unicast

Answer 11

Similar to IPv4 - allows devices
to communicate globally on the internet