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Degree Level Essays

Recently submitted

Question: TMA 01 Drawing on what you have learned from the making social lives DVD and Learning Companion 1, outline how some benefit and others lose on a street you know.

Answer: City Road in Cardiff is a typical street with many different shops and establishments just like any other road you might find...


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  • Subject: Introducing the social sciences
  • Course: DD101
  • Level: Degree
  • Year: 1st
  • Mark: Not available
  • Words: 982
  • Date submitted: August 26, 2014
  • Date written: February, 2012
  • References: Yes
  • Document type: Essay*
  • Essay ID: 5998

Question: TMA 02 Outline the argument that rubbish is not worthless.

Answer: In this essay we will looking at rubbish and seeing how it is a massive part of the consumer society of today,...


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  • Subject: Introducing the social sciences
  • Course: DD101
  • Level: Degree
  • Year: 1st
  • Mark: Not available
  • Words: 1290
  • Date submitted: August 26, 2014
  • Date written: November, 2012
  • References: Yes
  • Document type: Essay*
  • Essay ID: 5997

Question: TMA 05 Write a report that examines the challenges to expert knowledge in understanding and managing risk.

Introduction
Risk in our Lives
Expert Knowledge & How they can Conflict
Lay Knowledge
Conclusion
Reference
Self reflection

Answer: Introduction This report will examine the disputed role of expert knowledge in understanding and managing risk. It will look at the definitions...


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  • Subject: Introducing the social sciences
  • Course: DD101
  • Level: Degree
  • Year: 1st
  • Mark: Not available
  • Words: 1900
  • Date submitted: August 26, 2014
  • Date written: June, 2012
  • References: Yes
  • Document type: Essay*
  • Essay ID: 5996

Question: MU123 TMA 02

Answer: (a) (i) A Factor Tree for 2475 as a product of prime factors: 2475 / \ 825 3 / \ 275 3...


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  • Subject: Mathematics
  • Course: Mathematics
  • Level: Degree
  • Year: 1st
  • Mark: Not available
  • Words: 1015
  • Date submitted: August 25, 2014
  • Date written: Not available
  • References: No
  • Document type: Essay*
  • Essay ID: 5995

Question: TMA 02 Part 1: Option A

Describe the different types of evidence used in evolutionary psychology and explain why evolutionary psychology needs to use a multi-method approach. (Word count 1004)

Part 2 Methods questions (Word count 155)

Answer: Evolutionary psychology attempts to provide an overarching framework to explain human behaviour and looks for similarities and differences that exist between humans...


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  • Subject: Exploring Psychology
  • Course: DSE212
  • Level: Degree
  • Year: 1st
  • Mark: Not available
  • Words: 1159
  • Date submitted: August 25, 2014
  • Date written: Not available
  • References: Yes
  • Document type: Essay*
  • Essay ID: 5994

Question: TMA 01 Part 1 Describe the similarities and differences in the way identify is conceptualised by the Psychosocial Theory and Social Identity Theory. (Word count 1067)

Answer: This assignment will outline the theories and the findings from two different psychological approaches Henry Tajfel’s (1919-1982) Social Identity Theory, which focuses...


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  • Subject: Exploring Psychology
  • Course: DSE212
  • Level: Degree
  • Year: 1st
  • Mark: Not available
  • Words: 991
  • Date submitted: August 25, 2014
  • Date written: Not available
  • References: Yes
  • Document type: Essay*
  • Essay ID: 5993

Question: TMA 02 Question 3 (30 marks)

This question allows you to demonstrate your ability to configure and test a network of routers using Cisco’s Packet Tracer simulator. The Packet Tracer file for this question T216_13B_TMA02_Q3.pka will be found here. To answer the question open Packet Tracer and load this file. Configure your network as shown in Figure 1 using Command Line Interface (CLI) instructions. Your configuration should be as complete as possible.
Include:
. hostnames as given below
. enable secret password ‘class’
. console password ‘cisco’
. 5 vty lines password ‘cisco’
. correctly configured interfaces using DCE clock rates of 56000 bps as required
. RIP routing protocol v1
. message of the day banner with the message: ‘Unauthorized access prohibited!’

There is no requirement to configure any switches or PCs as they have been preconfigured for you. For this question all you need to configure are the three routers in the network shown in Figure 1. The Packet Tracer ‘configuration function’ has been disabled so you will have to configure the routers through the CLI as if you were accessing them via the console interface or via telnet. No link exists between Router2 and Router3, so the associated interfaces should not be configured at this time.

Q3 Tasks
The routers at your company's network were interconnected as shown in Figure 1 on the previous page but have not yet been configured. It is your role to configure the routers using the configuration list shown above and addressing table shown in Table 1. Then test the network to ensure it all works. The switches and PCs have already been configured in the Packet Tracer file associated with this question.

The secret password and the banner message do not contribute to this score, neither do shutdown commands.

(a) Copy and paste into your answer document the configuration for R2 as given when you type the ‘show running-configuration’ command. Highlight the text you want to copy and press the copy button to save to the clipboard. You can then paste this text into your answer document.

Figure 1 Network (indicators have been turned off for clarity)
Add a one line descriptive comment on each command or group of commands you enter stating what the commands are doing. Comments are preceded by an exclamation mark. Also you should edit out unnecessary lines (such a blank lines and additional compilation text) leaving only the lines showing your configuration and comments. You will be penalised by up to two marks if you fail to do this editing.
(15 marks)

(b) Insert a screenshot into your answer document to show the results of typing a command on R1 to display the routing table. Explain, in a sentence or two, each line of the output and how it shows that this router is learning about the network. Pay particular attention to the metrics. Marks will be lost if an inappropriate command is chosen to display the routing table or if a screenshot is not given. You will be penalised 1 mark if you fail to show a screenshot.
(3 marks)

(c) Insert a screenshot into your answer document to show the results of typing a command on R3 to display a single-line IP status for each interface. Describe, in one or two sentences, what this information tells you about each of the interfaces on this router. Marks will be lost if an inappropriate command is chosen or if a screenshot is not given. You will be penalised by 1 mark if you fail to show a screenshot.
(2 marks)

(d) Describe briefly how you tested your network to ensure you have connectivity for each PC on the network. Give a screenshot from PC2 showing that this PC can communicate with the other two PCs. These PCs and switches have been configured for you and will work if you have configured the routers correctly. You will be penalised by 2 marks if you fail to show an appropriate screenshot in your answer.
(5 marks)

(e) Save your Packet Tracer file as _T216_13B_TMA02_Q3.pka where is your Open University Personal Identifier code (in the form A1234567). You can find this code on your StudentHome home page. Zip up a copy of this file along with your answer document and send to your tutor using the online TMA/EMA service. Details of how to do this can be found from the Help section of your StudentHome.
(5 marks)

Question 4 (25 marks)
All parts of this question are about IP addresses. You can only gain full marks if you show your workings and/or explanations as appropriate. Giving just a numeric answer will not be sufficient to gain full marks. Note: subnet 0 should be used as the first usable subnet in all parts of
this question. Contact your tutor if you are unsure what this means.

(a) The following questions relate to a 172.16.0.0/12 network IPv4 address.
(i) Which portion of the network IP address 172.16.0.0/12 is the network, which part is the host and which gives the subnet mask? How have you been able to identify these parts, and how many networks and hosts can this network address support?
(4 marks)

(ii) What subnet mask should be applied to the network IP address 172.16.0.0/16 to give at least 100 useable hosts per subnet with the maximum possible number of subnets? (2 marks)

(b) The class C network IP address allocated to a network administrator is 192.168.150.0/28.
(i) How many possible subnets are there? (2 marks)

(ii) How many hosts and how many usable hosts are there in each subnet? (4 marks)

(iii) What is the network address of the second subnet? (2 marks)

(iv) What is the broadcast address of the sixth subnet? (2 marks)

(v) What is the address of the first useable host in the eleventh subnet? (2 marks)

(c) The IP addresses used in this question so far are part of a special set of private IP address blocks used on computer networks.

(i) Write down the missing private address (block) and its subnet mask.

(ii) Describe how the use of private IP addresses differs from the public IP addresses found on the internet.

(iii) What techniques are employed to ensure hosts using these addresses can still access the internet?
Note that this question refers to private address blocks listed in RFC 1918 and should not include any other reserved addresses.
(5 marks)

Question 5 (20 marks)
The following three listings were taken from a network simulated on Packet Tracer. The show ip route command was executed on each of the three routers in the network. For clarity, unnecessary output has been omitted. The routers used were Cisco 1841, each with the WIC-2T 2 port asynchronous/synchronous serial network module fitted. (The same routers and interfaces as used in Question 3). Assume FastEthernet interfaces have been assigned the lowest usable address on the networks to which they are directly connected.

Q5 Tasks
Use the information in the three listings above to answer the following questions (a–d):

(a) Provide an addressing table showing which device interfaces have been assigned to which IP addresses and subnet masks.
(5 marks)

(b) Derive the topology diagram of your network based on your interpretation of the listings shown on the previous page. You need only show the three routers and their interface connections – there is no need to show any other devices. You may provide an annotated screenshot from Packet Tracer or use any drawing aid you choose (a scanned drawing will be acceptable) but the correct symbols must be used for devices and interconnects. You should include the devices, interconnecting cables, interface identification and network addresses.
(4 marks)

(c) Provide a configuration listing for the Campus2 router. To keep your listing to a manageable length, only show the configuration for this router and do not include any extraneous output or blank lines. (6 marks)

(d) Describe briefly how you went about using the ‘show IP route’ command outputs to identify the topology of an unknown network. Why do you think this output is more useful than say looking at the running configuration files of each router? Your answer should not exceed 300 words – one mark will be deducted for answers over 300 words.
(5 marks)

Answer: Question 3 (b) [Image Screen shot 1] This is the list of all networks that the router knows about, their metric (the...


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  • Subject: T216 Cisco networking CCNA
  • Course: T216 Cisco networking CCNA
  • Level: Degree
  • Year: 2nd/3rd
  • Mark: Not available
  • Words: 2466
  • Date submitted: August 25, 2014
  • Date written: April, 2013
  • References: Yes
  • Document type: Essay*
  • Essay ID: 5992

Question: TMA 01 Question 2 (20 marks)

This question allows you to demonstrate your ability to work with the different number bases associated with this module. In every case you must show your working to gain full marks. By all means use a calculator to check that your answers are correct, but it will be very useful for you to be able to manipulate these types of numbers without using a calculator.

a) Convert each of the following binary numbers (in dotted binary form) to dotted decimal as shown in the Cisco Academy Network Fundamentals online material in Chapter 6. Remember to show your working.

b) Find the decimal result of ANDing the two decimal numbers shown in each of the following pairs. Remember to show your working for the decimal/binary conversion, the binary/decimal conversion and the AND function.
The AND function has the following properties:
· If the two compared values are both 1, the result is 1.
· If one of the values is 0 and the other is 1, the result is 0.
· If both of the compared values are 0, the result is 0.

Answer: In each of the conversions below, the binary octets of the 32 digit dotted binary number can be converted into a decimal...


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  • Subject: T216 Cisco networking CCNA
  • Course: T216 Cisco networking CCNA
  • Level: Degree
  • Year: 2nd/3rd
  • Mark: Not available
  • Words: 1456
  • Date submitted: August 25, 2014
  • Date written: February, 2013
  • References: No
  • Document type: Essay*
  • Essay ID: 5991

Question: T216 TMA 01 Question 3
This lab asks you to design and apply an IPv4 addressing scheme to the network shown in Figure 1 given the network address 192.168.1.0/24. You should use equal size subnets and use the smallest size of subnet possible given the following requirements:

· The LAN connected to router R1 will require enough IP addresses to accommodate 15 hosts (including the router).
· The LAN connected to router R2 will require enough IP addresses to accommodate 30 hosts (including the router).
· The link between R1 and R2 will require IP addresses at the end of each link.
Subnet the Address Space

a)  Design a subnetting scheme and answer the following questions:
i) Into how many equally sized subnets must the given network address be divided to give the maximum number of subnets? Show your working.
ii) Give the subnet mask for this network in dotted decimal and slash formats.
iii) How many useable hosts are available in each subnetwork? Briefly justify your answer.
(8 marks)

Reflect upon the suitability of the configuration
f) Subnetting was developed to make more efficient use of the limited number of IPv4 addresses available. Do you consider this network subnetting scheme makes efficient use of the available addresses or not? Whatever your decision, you should justify it in terms of complexity, numbers of unused hosts, equipment needs, et cetera. You will be penalised if your decision about efficient use of addresses is not stated clearly.

b) Apply your addressing scheme using the following instructions. Hence complete Table
(Note: Subnets number from 0 upwards)
i) Assign the second subnet to the LAN attached to R1 (R1LAN).
ii) Assign the third subnet to the serial link between R1 and R2 (R1-R2).
ii) Assign the fourth subnet to the LAN attached to R2 (R2LAN).

Answer: i) There is 1 x LAN connected to router R1 and 1 x LAN connected to router R2. 1 x subnet will...


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  • Subject: T216 Cisco networking CCNA
  • Course: T216 Cisco networking CCNA
  • Level: Degree
  • Year: 2nd/3rd
  • Mark: Not available
  • Words: 1035
  • Date submitted: August 25, 2014
  • Date written: February, 2013
  • References: Yes
  • Document type: Essay*
  • Essay ID: 5990

Question: TMA 07 Final Reflecting on progress.

Answer: AA100 The Arts Past and Present has covered a wide range of topics that has helped me obtain a starting block to...


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  • Subject: The arts past and present
  • Course: AA100
  • Level: Degree
  • Year: 1st
  • Mark: Not available
  • Words: 749
  • Date submitted: August 22, 2014
  • Date written: May, 2014
  • References: Yes
  • Document type: Essay*
  • Essay ID: 5989

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