735316 Computer Network Principles

School of Engineering – 735316 Computer Network Principles

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INSTRUCTIONS                 Attempt ALL questions.

Write your answers in the space(s) provided Write in INK. Pencil will not be marked. Hand in before or at the due date and time. Late assignments will not be marked. Download now 735316 Computer Network Principles answers.

MARKS                            90 marks  (as indicated)

  1. the table below. For each IPv4 address, determine the Network Class the address belongs to and enter it. Give your proof by converting the first octet to binary and underline only the bit(s) which indicate the class:
IP Address Network Class Binary Identifier
220.224.10.22
172.31.120.32
129.216.91.148
172.17.123.110
72.16.10.129
207.19.6.100
128.0.128.16
10.0.24.131
224.0.0.4
192.168.255.2

Table 1.                                                                                                                                                                                  [20 marks]

  1. From the list above, identify and write down the private ip addresses, their classful default network masks and the matching network prefix:
Private IP Address Default Network Mask Prefix

Table 2                                                                                                                                         [9 marks]

  1. Write down the special address in Table 1:
    [1 mark]
    4. What is this address used for?:
                                                                                                                                        [1 mark]
    5. What is a  gateway address? 
                                                                                                                                        [1 mark] 4. Write down the default network masks for the network classes listed below:
Class A:
Class B:
Class C:

Table 3                                                                                                            [3 marks]

  1. Convert the following IP addresses written in dotted decimal to binary:
IP Address
(Dotted decimal)
 IP Address
(binary)
172.29.224.126                      .                       .                      .
65.72.238.29                      .                       .                      .
156.62.81.59                      .                       .                      .
10.10.10..5                      .                       .                      .

Table 4                                                                                                                      [4 marks]

  1. Convert the following IPv4 binary addresses to dotted decimal:
Binary IP Address Dotted Decimal IP Address
10101000.00100101.10011001.11001101
01010000.1010000.00000001.11110011
10110000.00011000.00100001.10011010
01111110.01101111.00000001.10000000

Table 5                                                                                                                                      [4 marks]

  1. The following host IP addresses all belong to IPV4 subnetted networks. Using the information provided (IP address and network prefix), fill in the table with the subnet mask, network address of the subnet and the number of hosts each subnet can accommodate.
Host IP Address Subnetwork Address Subnet Mask Number of Hosts
168.62.81.59/24
192.168.32.249/30
212.23.225.131/25
10.10.20.254/21
168.30.208.128/20

Table 6.                                                                                                                                     [15 marks]

  1. Using the subnet network addresses you calculated from the previous question, fill in the network information in the table below:
Subnetwork Address First Host Address Last Host Address Broadcast Address

Table 7                                                                                                                                      [20 marks]

  1. Convert AC to decimal.                          [1 mark]
  1. Given the following IPV6 subnetted network address, write down the next two subnet network addresses:
Subnetwork Address Next Subnet Address 1 Next Subnet Address 2
2001:13:110A:FFE::/64
2001:13:27:FF01::/64
2001:14:BADD:12FA::/64
2001:13:FEED:12FF::/64

                                                                                                                                                                                [8 marks]

  1. a) Is ::/128 a valid IPV6 address (no/yes):              ___                                                     [1 mark]
  2. b) What would the ipv6 address FEBE:AAAA::124/10 be used for?

                                                                                                     _____________________________           [1 mark 
  3. c).What is the  ipv6 address  ::1/128 used for?    ______________________________    [1 mark]

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