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<p class="MsoNormal">Take 2. I have to train my mail client to stop sending emails before I finish !</p>
<p class="MsoNormal"><span style="color:#1F497D"> </span></p>
<p class="MsoNormal">Hi Folks</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I am just browsing the VCAA 2013 exam and 2 items jump out at me:</p>
<p class="MsoNormal"> </p>
<p class="MsoListParagraph" style="text-indent:-18.0pt"><span style="">1.<span style="font:7.0pt "Times New Roman"">
</span></span>Section B, Q 5 – What is a record and what is a file ?</p>
<p class="MsoNormal" style="margin-left:36.0pt">Examiners’ report states a record is a control structure ?????</p>
<p class="MsoNormal" style="margin-left:36.0pt"> </p>
<p class="MsoNormal" style="margin-left:36.0pt"><i><span style="font-family:"Verdana","sans-serif"; color:red">A record is a
<u>control structure</u> and method of storing and grouping related data together: eg ID 001, Name Fred, LastName Jones. This data is a record as it is relevant to each other and stored together.<br>
A record is a data structure which stores related information such as name, score, year in one data store. Individual data stored in a record can be accessed through an index to find the related information within that record.</span></i></p>
<p class="MsoNormal" style="margin-left:36.0pt"> </p>
<p class="MsoNormal"><span style="color:#0070C0"> A control structure is a block of code that dictates the flow of control such as branching, selection, looping, function call and not a storage structure.</span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoListParagraph" style="text-indent:-18.0pt"><span style="">2.<span style="font:7.0pt "Times New Roman"">
</span></span>Section C , Q 14</p>
<p class="MsoNormal"><span style="font-family:"Verdana","sans-serif"; color:black">A major security concern for the software being designed to run on the drone is that hackers (unauthorised users) could take over control of the drone.<br>
State two measures that could prevent this from happening. Clearly explain how each would prevent unauthorised access to the drone.</span></p>
<p class="MsoNormal"><span style="font-family:"Verdana","sans-serif"; color:black"> </span></p>
<p class="examiner" style="line-height:14.65pt"><i><span style="font-family:"Verdana","sans-serif"; color:red">Install a firewall
<u>between the tablet and router</u><br>
- A firewall controls which user can and cannot have access to certain ports.<br>
- The firewall would only allow the park rangers access to the drones and would prevent unauthorised outside users.</span></i></p>
<p class="examiner" style="line-height:14.65pt; orphans:auto; text-align:start; widows:auto; word-spacing:0px">
<i><span style="font-family:"Verdana","sans-serif"; color:red">Ensure all path instructions are encrypted<br>
- Encryption changes the ‘plain text’ of the flight instructions into unreadable ‘ciphertext’.<br>
- This will ensure that the drones can only accept instructions from the official tablet devices and nothing else.</span></i></p>
<p class="MsoNormal"><span style="color:#0070C0"> Has anyone seen a
<b><i>firewall inside a network</i></b> ???? A firewall between a Wireless client ( tablet ) and the Access Point ??</span></p>
<p class="MsoNormal"><span style="color:#0070C0">Strong Encryption with strong passwords is the way to go as well as 2 factor authentication ( physical, biometric, username, password ). A passphrase for connecting to the access point, then a separate password
/ biometric/fingerprint for using the software on the table.t. You do not close ports internally on a LAN. A firewall separates different networks and not devices within a network. You do not close ports to control who has accesses within a network.
</span></p>
<p class="MsoNormal"><span style="color:#0070C0"> </span></p>
<p class="MsoNormal"><span style="color:#0070C0"> Sorry folks, but this one is disappointing.
</span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="color:#1F497D">Kind Regards</span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="">Kevork Krozian</span></p>
<p class="MsoNormal"><span style="">IT Pathways Manager</span></p>
<p class="MsoNormal"><span style="">Ringwood Trade Training Facility </span></p>
<p class="MsoNormal"><span style="">Tel: 0419 356 034</span></p>
<p class="MsoNormal"> </p>
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