networking question need to be solved

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Semester 2, 2017 FINAL EXAMINATION Page 1 of 10 HIT274 – Network Engineering Applications

THIS EXAMINATION PAPER AND SUPPLIED MATERIALS ARE NOT PERMITTED TO BE REMOVED FROM ANY EXAMINATION VENUE IN ANY CIRCUMSTANCE. THIS EXAMINATION IS PRINTED DOUBLE-SIDED.

Charles Darwin University Final Examination

HIT274 – Network Engineering Applications

DURATION

Reading Time: 10 minutes

Writing Time: 180 minutes

INSTRUCTIONS TO CANDIDATES

The examination has 3 sections

Section A:

Suggested Time:

Multiple Choice Questions: Answer ALL questions

45 minutes (30 marks)

Section B:

Suggested Time:

Short Answer Questions: Answer ALL questions

95 minutes (50 marks)

Section B:

Suggested Time:

Case Study: Answer ALL questions

40 minutes (20 marks)

Questions in section A must be answered directly onto the Examination Paper. Section B and C are to be answered in the booklets provided.

Note that questions ARE NOT of equal value.

Do not commence writing until instructed to do so.

EXAM CONDITIONS

You may begin writing from the commencement of the examination session. The reading time indicated above is provided as a guide only.

This is a CLOSED BOOK examination

No calculators are permitted

No handwritten notes are permitted

No dictionaries are permitted

ADDITIONAL AUTHORISED MATERIALS EXAMINATION MATERIALS TO BE SUPPLIED

No additional printed material is permitted

1 x 16 Page Book 1 x Scrap Paper

Family Name

Given Name/s

Student Number

Teaching Period Semester 2, 2017

Semester 2, 2017 FINAL EXAMINATION Page 2 of 10 HIT274 – Network Engineering Applications

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THIS EXAMINATION IS PRINTED

DOUBLE-SIDED.

THIS PAGE HAS BEEN INTENTIONALLY

LEFT BLANK.

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Section A

Multiple Choice Questions

Total No of Marks for this section: 30

This section should be answered directly into this booklet by placing an X next to your chosen answers. Please

ensure that your name and student number have been written on this booklet.

Each question is worth 1 mark.

Suggested Time allocation for Section A: 45 mins

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Section B

Short Answer Questions

Total No of Marks for this section: 50

This section should be answered in the Answer Booklet provided.

Marks for each question are indicated.

Suggested Time allocation for Section B: 95 mins

Question 1

Complete the table below:

Full IPv6 Abbreviated IPv6

a FE80:0000:0000:0000:0A00:0000:0000:054A

b 9:B200:80:F0A:A000:C:885:5000

c 0C12:00A8:2001:0000:0000:0000:0000:0DB8

(3 marks)

Question 2

Complete the table below

Address / length Prefix

a 9ADF:E00:0:50A:FACE:BAFF:FE00:0/96

b D1E1:F0:52E:D3F2:FACE:BAFF:FE00:0/72

c DEF4::CAFE:F0A0:BAFF:FE00:0/62

(3 marks)

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Question 3

a. What is the summary route to reach HQ LANs?

b. What is the summary route to reach Branch1 LANs?

c. What is the summary route to reach Branch2 LANs?

d. What is the summary route from the ISP router to reach all LANs?

e. List 3 advantages of route summarisation

(11 marks)

Question 4

Given the IP address of 138.152.0.0/16, allocate IP address to the following groups using VLSM.

 Group A: 1000 users

 Group B: 400 users

 Group C: 200 users

 Group D: 50 users

 Group E: 4 users

Semester 2, 2017 FINAL EXAMINATION Page 6 of 10 HIT274 – Network Engineering Applications

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Answer the following questions:

a. What is the last host address and subnet mask (in dotted decimal notation) of group A?

b. What is the first host address and subnet mask (in dotted decimal notation) of group C?

c. What is the broadcast address and subnet mask (in dotted decimal notation) of group D?

d. What is the network address and subnet mask (in dotted decimal notation) of group E?

(8 marks)

Question 5

Write down four advantages of dynamic routing compared to static routing?

(4 marks)

Question 6

Compare the differences between NAT and PAT

(4 marks)

Question 7

Write down three good practices when configuring routers and explain why they are good practices.

(3 marks)

Question 8

Explain the use of the following commands:

a. switchport port-security mac-address sticky

b. switchport port-security maximum 8

(2 marks)

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Question 9

The legacy inter-VLAN routing is shown. Answer the following questions:

a. What are the disadvantages of such a setup?

b. What is a better alternative? Draw diagram to illustrate.

c. What additional configurations are needed for such alternative setup?

(6 marks)

Question 10

Create a one line standard ACL that matches the criteria for the following:

Criteria Answers

a Packets from 172.16.5.4

b Packets from hosts with 192.168.6 as the

first three octets

c Packets from any host

d Packets from subnet 10.1.200.0/21

e Packets from subnet 10.1.200.0/27

f Packets from subnet 192.168.9.64/30

(6 marks)

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Section C

Case Study

Total Number of Marks for this section: 20

This section should be answered in the Answer Booklet provided.

Marks for each question are indicated.

Suggested Time allocation for Section C: 40 mins

A topology is set up with some information given:

 The “show ip route” information for routers W, X and Z are given.

 Router Y has only 2 active interfaces.

 There are only 4 routers used for this topology.

 IP addresses of some devices in the topology are also given

Router W

Semester 2, 2017 FINAL EXAMINATION Page 9 of 10 HIT274 – Network Engineering Applications

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Router X

Router Z

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The information about some of the devices is shown in the table below:

Devices interface IP Mask Default gateway

PC0 f0 192.168.10.1 192.168.10.14

PC1 f0 192.168.10.17 255.255.255.240

PC2 f0 192.168.10.81

PC3 f0 255.255.255.240 192.168.10.113

Server g0

Router Y

s0/0/0 255.255.255.240 -

g0/0 255.255.255.240 -

1. Based on all the given information, draw the topology of the setup, clearly identifying the LANs, the type

of cable used and the connections between the routers. The IP address and the prefix for each network are

to be shown clearly in the diagram.

(10 marks)

2. Complete the given table above.

(10 marks)