1.9 Which one of the following will NOT help to promote green computing?

D. Making hard copies of electronic documents

A. Performing a spell check on soft copies of documents

B. Scanning documents that need to be shared with others

C. Training people to use Outlook effectively

4.1 Give anti-theft strategies for hardware, besides preventing physical access to the place where the hardware is kept.

Lockable cabinets (for storing computer ‘boxes’)

Motion sensors (to detect when a device is moved, and set off an alarm

4.2 Explain briefly the concept of ‘sleep mode’ in terms of a computer and how this mode is activated

Sleep mode’ is a power-saving mode

a way in which the computer cuts power to (most) components

It activates when the computer has not been used for a period of time

4.3 Give reasons why a person might choose to buy a tablet rather than a laptop, besides any issues relating to cost or the software that can be loaded onto these devices

Tablet is physically smaller than a laptop (more portable)

Tablet has longer battery life than a laptop

(less frequent charging required)

4.4 Give common differences between the hardware components on a server compared to client computers. Note: Be specific. Avoid broad statements such as ‘faster’ or ‘more powerful’

More storage (larger hard drive)

4.5 Give reasons why a DSLR camera can create higher quality images than a ‘point-and-shoot’ camera, besides any issues relating to the ‘zoom’ type. Note : Be specific. Avoid broad statements such as ‘better for night photography’ / ‘better wide angle shots’

DSLR cameras let you change lenses

DSLR cameras have larger sensors

DSLR cameras have higher ISO ratings (higher/better sensitivity to light

DSLR cameras have smaller sensors

4.6 Give potential disadvantages of implementing biometric security to control access to a room or building.

Needs additional hardware and software (cost factor)

May be inconvenient to re-program the device each time another person needs access

Does not need additional hardware and software (cost factor)

Maybe convenient to re-program the device each time another person needs access

The specifications of two monitors are given below. Monitor A 28" 2 milliseconds Monitor B 23" 6 milliseconds Give TWO reasons why a gamer might prefer Monitor A , rather than Monitor B . You must also give the name or ‘explanation’ of what each specification refers to in each case.

The screen size of Monitor A is higher than that of Monitor B

The response time (speed at which pixels are updated) of Monitor A is faster than that of Monitor B

The screen size of Monitor B is lower than that of Monitor A

The response time (speed at which pixels are updated) of Monitor B is lower than that of Monitor A

4.9.4 Suppose the image was damaged in some way on a specific item and could not be scanned. Give another input method that could be used to enter the data on the image.

type in the number below the barcode

4.9.3 Give advantages of using RFID technology

RFID tags are durable and reusable

RFID readers can read multiple RFID tags at once

4.10 Give general disadvantages of using dedicated devices rather than human input to capture data

battery problem / faulty software

Only sensor-detectable data can be collected

Devices in remote locations can be difficult/expensive to repair or replace

4.12.2 Give other ways, besides use keyboard shortcuts, in which a user can try to prevent health problems that may arise from the improper use of input devices

Position mouse and keyboard close to each other

Use ergonomically designed equipment

5.1 Servers are powerful computers found in network environments. 5.1.1 Give advantages for a user, in saving their work to a server rather than to their own computer.

User can access their work from any computer on the network

User does not need to back up their work themselves

User’s computer might have low storage capacity (small HDD)

User’s computer might have high storage capacity (large HDD)

Grade 11 Theory Part 1

Authored by Daphne Josephs

Computers

11th Grade

Used 2+ times

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57 questions

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

1.1 Which one of the following statements about a switch in computer networking is FALSE?

A. Computing devices are connected to a switch with cables.

B. A switch allows communication between computers in a network.

C. The main function of a switch in any network is to obtain internet access.

D. More than one switch can be used in a computer network.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which one of the following specifications is common both to monitors and to printers?

A. Monthly duty cycle

B. Resolution

C. 4K

D. Aspect ratio

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

1.3 Which one of the following is NOT used to hold data created by the user?

A. RAM

B. SD card

C. Hard drive

D. ROM

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1.4 Which one of the following is a possible result (answer) of the formula shown below, when entered in a spreadsheet?

A. 16.4231

B. 9.74488

C. 100.6521

D. – 0.4089

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

1.5 Which one of the following statements about memory and storage is FALSE?

A. Storage operates at lower speeds than memory.

B. Storage, unlike memory, holds data and programs even when the computer is switched off.

C. Both magnetic and optical storage work mechanically.

D. Storage is more expensive per GB than memory.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

1.6 Which one of the following is a document that contains the basic layout and sections needed for a particular type of document?

A. Template

B. Form

C. Theme

D. Style

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

1.7 ‘Monthly duty cycle’ is a specification of a ...

A. digital camera.

B. workstation.

C. printer.

D. scanner.

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Grade 11 Theory Part 1

1.1 Which one of the following statements about a switch in computer networking is FALSE?

Which one of the following specifications is common both to monitors and to printers?

1.3 Which one of the following is NOT used to hold data created by the user?

1.4 Which one of the following is a possible result (answer) of the formula shown below, when entered in a spreadsheet?

1.5 Which one of the following statements about memory and storage is FALSE?

1.6 Which one of the following is a document that contains the basic layout and sections needed for a particular type of document?

1.7 ‘Monthly duty cycle’ is a specification of a ...

1.8 Which one of the following devices do ATM thieves use to obtain your PIN?

1.9 Which one of the following will NOT help to promote green computing?

1.10 Which one of the following devices would NOT be used by a person who suffers from poor motor control?

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