A … is the smallest addressable unit of space on a hard disk drive.

The encryption protocol using public key encryption for encoding data sent over the Internet is known as …

Which ONE of the following is NOT part of the machine cycle?

A hardware interrupt is …

Quad pumping is ...

Which ONE of the following Boolean expressions is correct?

A rootkit is ...

… takes place when the sender address and other parts of an e-mail header are altered to appear as though the e-mail originated from a different source.

Which ONE of the following is an example of a correctly constructed URL for a secure website?

The two files below are examples of music files.Which ONE of the following file extensions is most likely to be associated with these two files? 

Give TWO reasons why the managers requested to be issued with the laptop rather than the tablet.

A tablet uses an SSD for storage of data and files.
(a) What does the acronym SSD stand for?
(b) List THREE comparative differences between the features and performance of an SSD and an HDD in table format.

The tablet has a system recovery partition on its SSD.
(a) Explain what partitioning of a disk means.
(b) Briefly explain why there is a need for a system recovery partition, specifically on tablets.

Both a tablet and a laptop use cache memory. Explain the purpose of cache memory in a computer system.

DDR RAM improves the transfer of data between the RAM and the CPU when compared to SD RAM. Explain how this improvement is accomplished.

Give TWO reasons why a tablet and a laptop cannot use the same type of RAM.

List FOUR of the basic components a CPU must contain to be able to execute instructions.

Different CPUs use different instruction sets. What is a CPU instruction set?

Both types of CPU support multithreading. Explain the concept of multithreading.

Name TWO physical aspects of CPUs that are built in during the manufacturing process to improve the performance of CPUs.

State TWO advantages of USB over FireWire.

Would the software used for the editing of videos be considered application software or system software?

Name the type of connection the modem will use with the uploading of results.

Explain what is meant by the term cloud in this context.

Is the storing of results in a cloud a good idea? Motivate your answer.

The managers decided to use inkjet printers because they are less expensive. Persuade them to use laser printers instead by giving TWO good arguments in favour of laser printers.

Spooling is a technique that is used to accommodate large volumes of printing. Explain what spooling is.

The USB-port used to connect the printer uses serial data transfer. Explain the difference between serial and parallel data transfer.

Briefly explain the basic concept VoIP.

Name a VoIP client that the managers could use to host the conference call.

Name ONE other way (besides a conference call) in which the managers could have discussions and collaborate online.

Give ONE possible reason why the DLL files are missing.

What needs to be done so that the manager will be able to use the software again?

When new software is installed on a computer system running a Windows operating system an entry is made into the registry of the system. Explain in computing terms what the registry is.

Someone requested the managers to e-mail them the video footage as an attachment. Give TWO reasons why this request is possibly not feasible.

Explain the concept of podcasting.

Why will podcasting be an advantage for people who want to watch the video more than once?

Name ONE example of an electronic medium that can be used to inform friends and family when a new podcast is available.

Explain the term broadband.

ADSL is an example of a cabled broadband connection.
(a) Is ADSL a digital or an analogue connection?
(b) Give ONE advantage of an ADSL connection.

Give an example of another cabled broadband connection.

Justify the parents' concerns by describing TWO ways in which personal information provided on a website can be misused.

Suggest ONE measure that a contestant can take to protect personal information that needs to be published on the Internet.

Explain what social engineering is.

Describe ONE way in which social engineering can be prevented.

What is meant by the term tweet?

What term is used to refer to the practice of publishing insulting remarks about people on an online or public forum?

What is a blog?

How would the contestants be advantaged by the blog?

Entries must be done electronically on the website. A request was made that there must also be an alternative way to handle the entries because of the digital divide in South Africa. What is meant by the term digital divide?

Members of the IT team can work on the voting system from home instead of at the head office. Discuss the disadvantages of working from home from the IT members' point of view.

The category options of the competition are Dance, Drama and Music. The following two controls have been suggested (see attached resource). Give TWO reasons why Suggestion A is a better choice.

The input control in the screen shot below may cause users to select both options when they enter the gender of a contestant. Suggest how this situation can be prevented.

Only contestants between the ages of 13 and 18 are allowed to take part in the competition.
The following control is used to enter the age of the contestants (see attached resource). Explain why data entered using this control will be valid but not necessarily correct. Use an example with actual values as part of your explanation.

When the secretary tries to add data of newly registered contestants into the tblContestants table, an error message is displayed when she enters a value into the School_ID field.

(a) Select the type of error that occurs in this case from the given list below. Write only the letter (A–C) as your answer:
A-Update anomaly
B-Insert anomaly
C-Delete anomaly

b)What needs to be done to be able to register the new contestants that cannot be registered currently?

Give TWO reasons why a database is a better structure to keep data about contestants than a text file.

What type of key is the School_ID field in the tblContestants table?

Another table needs to be added to convert the database into first normal form. Draw the new table, indicating the name of the table and appropriate fields and keys.

NOTE:
Draw only the new table and NOT the two given tables.

Explain the relationship between the newly defined table in the question above and the relevant given table (tblContestants or tblSchools) with specific reference to the fields involved.

Define an object in computer programming terms.

Give ONE example of an object that needs to be created for this program.

A class for this program has been defined with public attributes. Give TWO reasons why this is NOT good programming practice.

The output will not be correct due to TWO logical errors. Identify the instructions causing the logical errors and write down their line numbers and the correct instructions.

The name of the contestant with the highest score must also be displayed.

Write line(s) of pseudocode that need to be added to the given algorithm to accomplish this task. Use the line numbers to indicate the position where the new line(s) of pseudocode should be inserted into the given algorithm.

The system design document (SDD) is one of the first documents developed. List THREE aspects that form part of the SDD.

List THREE aspects that should be included in the test plan.

Why is it important to include hardware and software requirements in user documentation?

The function/method called in line 6 uses the following two parameters:

• Hour
• Minute

(a) What are parameters in terms of programming?
(b) Suggest a suitable data type for these parameters. Explain your choice of data type.

The function/method called in line 7 will use 'try …' protection blocks.
Write down the general structure of a 'try …' protection block AND briefly explain the purpose of each section.

Write down the logical condition to complete the IF-statement in line 8 of the given algorithm.

If this algorithm is correctly coded and executed, it will cause an error in line 4 due to a mistake that was made in line 10.
(a) Explain the cause of the error.
(b) Briefly explain how to correct the mistake.

Is Bluetooth a suitable technology to use in this scenario? Motivate your answer.

What is the transmission rate of standard Bluetooth devices (3 Mbps or 3 Gbps)?

An audience member's voting controller does not connect to the wireless network although the member is within range of the server.

Name TWO possible troubleshooting steps that can be followed to solve the problem. Replacing the voting controller is not an option.

Explain what a relational database is.

Give the name of ONE example of an existing database system that could be used to create this database.

Name TWO specific responsibilities of a database administrator.

Explain what is meant by streamed.

Name TWO components that are required to be able to stream a live event.

An entrepreneur is recording the live broadcast on his home computer. He plans to sell copies of the recording. Discuss the ethical issues of these activities.

State TWO advantages of a wireless network over a cabled network.

State TWO additional hardware components that are required to create the wireless network.

Which network protocol would be appropriate to use for the wireless network?

State TWO types of programs that can be used to retrieve data from a computer without the permission or knowledge of the user.

Explain how the organiser could check whether there is any unauthorised software running on his computer.

Describe TWO ways in which the organisers can prevent their computers from being accessed by unauthorised software.

Describe THREE functions of an operating system.

State TWO advantages of a proprietary operating system over an open source operating system.

Explain why software designed for the Apple Mac cannot run on a computer that uses the Microsoft Windows operating system.

The cloud server probably uses RAID technology. Briefly explain what RAID is. (Expanding the acronym will NOT be accepted as an answer.)

Several levels of RAID can be implemented. Motivate why the cloud server will probably use RAID 1 rather than RAID 0.

'Cloud computing' can be beneficial for green solutions in terms of hardware. Explain this statement briefly.

Give a summary of the main responsibilities of a systems analyst.

Apart from a database administrator and a systems analyst, name TWO other types of IT specialists who will most probably be employed by the organiser of this project.

Motivate why the above statement is valid by referring to TWO of the following aspects:
• Faster and improved data processing
• Improved data storage
• Improved communication

Give ONE example of a well-known Internet search engine.

Give TWO hints for conducting an effective Internet search AND give an example with each hint which is applicable to a search for the website for this competition.