Key in the number

Exercise and reference answers

Questions

1. Answer

   32

   Question

   How many bits long is an IPv4 address?

2. Answer

   12

   Question

   How many hexadecimal digits are in a MAC address?

3. Answer

   128

   Question

   How many bits long is an IPv6 address?

4. Answer

   13

   Question

   How many root servers sit at the top of the DNS hierarchy?

5. Answer

   1024

   Question

   How many kilobytes make one megabyte?

Instructions

Work out each answer and key it in on the pad.

Explanation