(4) 1. Convert 1111 1010 1011₂ to a) Hexadecimal and to b) Decimal: show your work:

1. Converted to Hexadecimal:

(4) 2. Convert E9A₁₆ to a) Binary and to b) Decimal: show your work:

(2) 3. Convert this subnet mask to slash notation: 255.255.255.248

(show your work using bits, but dont show dec to bin conversion)

(2) 4. Convert this subnet mask to Dotted Decimal notation (show your work using bits): /12

(show your work using bits, but dont show dec to bin conversion)

(2) 5. Write this IPv6 Address in its shortest form: 2001:cdba:0000:0000:0000:0000:3257:9652

(2) 6. Expand this IPv6 Address into its longest form: 3FFE:FFFF::8:800:20C4:0

or each device, state the OSI network layer it functions on and whether it can isolate a collision domain (or not) and whether it can isolate a broadcast domain (or not):

Device	OSI Layer	Isolates Collision Domain (Y/N)?	Isolates a Broadcast Domain (Y/N)?
Hub
Switch
Router

(2) 7. What is the meaning of the IP address 127.0.0.1 ? What is it used for?

(2) 8. Write the IP Version 6 loopback address:

(4) 9. What is the difference between a MAC address and an IP address? (i.e. define each and show the difference)

(6) 10. Given the following network: 172.16.125.200/10

a) What is the network number (network portion of the address)?

b) What is the host portion of the address?

c) Is a host with address: 172.48.100.155 on the same subnet? Why or why not?

(16) 11. Given the following network: 192.168.10.0/24 Subnet this network with a /25 subnet mask

a) What class was the original network? (1mk)

b) How many bits are borrowed? (1mk)

c) How many new networks are there? How many hosts per network? (4mks)

d) What is the new subnet mask in dotted decimal notation? (1mks)

e) What is the Block Size? (1mk)

f) List out the new networks, the IP range in each network and the networks broadcast address (8mks)