exam questions Flashcards
Which one of the following would you NOT typically find in a Netbook
computer?
DVD drive
A collection of fixes, updates and new features since the release of the
original software is usually referred to as …
a service pack
Which one of the following refers to a set of ‘rules’ whereby a device is
automatically detected and configured for use when it is added to or installed
on a computer?
plug and play
It is used to connect a computer to a wired
network
NIC - network interface controller
The unit in which the resolution of a scanner is
measured
DPI-
A type of memory that contains boot-up instructions
for a computer to load the operating system
ROM read only memory
A digital camera with more options than a point-and-
shoot camera
DSLR digital single lens reflex
The unit used to measure the speed of a printer
PPM print per minute
A company that provides internet access
ISP internet service providere
An online storage facility
DROPBOX
The unit used to indicate or measure the
resolution of a digital camera
MP
A single fact or the smallest unit of data in a
database
FIELD
Printers that can create three-dimensional solid
objects from a digital model of the item
3D
Name the THREE main hardware components one should consider when
purchasing any type of computer for general computing purposes.
CPU / Processor
Hard drive / Storage
Memory / RAM
List TWO benefits of having a UPS connected to your computer.
Prevents data loss
Protects hardware against power surges / spikes
Gives time to save work and shut down properly (in case of load
shedding, etc.)
Give TWO general disadvantages or limitations of using touch screens for
input.
Data input / typing is not fast or easy (compared to physical
keyboard) ✓
* Touch screen can become dirty / oily / smudged ✓
* Does not work well on a desktop device or in office environment,
but is good on portable / handheld devces
* On-screen keyboards reduce screen display area whilst in use
* Some touch screens need extra pressure to work and may seem
unresponsive
* Quality of the ‘touch experience’ depends on operating system
being used
Give the additional hardware and software (apart from the computer
itself) that the teacher will need to convert the test papers to editable
text.
Additional hardware: scanner
Additional software: OCR software
Explain what the term ‘biometric’ refers to and give the main use of this
technology.
Refers to the use of unique biological / physical
characteristics ✓
* for security / identification / authorisation purposes
One of the options or specifications you need to look at when purchasing a
printer is the monthly duty cycle.
The maximum number of pages that can be printed in a month ✓
without the printer failing / breaking.
Distinguish between a typical and a custom software installation.
Typical installations: the components of the software that most
users
want ✓
Custom – you can choose which components to install ✓
State TWO advantages of cloud storage apart from cost issues.
Accessible wherever there is internet access ✓
* Accessible from / via a variety of devices ✓
* Backup and security handled by the service provider
* Saves space on local storage
* Allows for files to be synchronised across multiple devices
* Promotes easier sharing of files
* Do not lose data if computer is damaged / stolen, etc.
Hard drives become fragmented over time and need to be defragmented.
Faster speed ✓ (faster access to drive)
* Less loading time ✓ (retrieves files faster)
Briefly explain what a blog is. (1)
4.10.2 Give TWO examples of how bloggers make money via their blogs.
Blogs are online publishing tools. ✓ 1
4.10.2 Bloggers make money through:
* advertising ✓
* sponsorship ✓
* subscription
Give TWO functions of a motherboard.
Provides slots for connecting / adding components / adapters ✓
* Provides power to connected components ✓
* Allows for communication / data exchange between connected
components
* Provides connection for external devices via ports, etc.
Explain TWO main differences between UTP cables and fibre optic cables.
Fibre cables use light signals to transmit data, whereas UTP
cables use electrical signals to transmit data. ✓
- Fibre cables can span much longer distances while UTP cables
can only span a certain distance before the signal strength gets
weaker. ✓ - Fibre cables provide for much faster data transmission than UTP
cables. - Fibre cable is immune to eavesdropping.
- Fibre is not affected by electromagnetic interference.
Briefly explain what a keylogger is and why banks often warn about
them.
A type of (spyware) software that records keystrokes as
you type. ✓
They capture passwords, usernames, account numbers,
etc. ✓ (and pass these on to a third party), to commit identity
theft. ✓
Give TWO steps that can be taken to prevent unauthorised access to
computers.
Keep computers with valuable information in locked rooms and control
access to the room. ✓
* Ensure that the screen and keyboard are disabled when you are away
from the computer. ✓
* Make sure that the computer requires a login when starting and when
waking up from screensaver mode.
* Make sure that the computer does not have unrestricted access to the
Internet – Internet usage is controlled and monitored by utility software
such as firewalls, anti-virus and anti-spyware.
* Also ensure that not just any device can make a Bluetooth connection
to your device.
Name ONE example of an open-source office suite.
LibreOffice ✓
OpenOffice
Give the main advantage of open-source software, apart from the
fact that this software can be freely used and distributed.
The source code is freely available and can be modified.
Give ONE general hardware disadvantage of a laptop compared to
a desktop computer, apart from the fact that portable computers
sometimes have lower hardware specifications than non-portables.
More fragile and likely to be damaged
The hard drive of one of the desktop computers is running out of storage
space.
Give THREE suggestions on how to free up more disk space, apart from
adding another hard drive.
Run the Disk Cleanup utility. ✓
* Remove duplicate files / files no longer needed. ✓
* Delete ‘temp’ files (also in web browser). ✓
* Compress the drive, or selected files.
* Archive files no longer in use, to a secondary storage medium
(e.g. DVD).
* Uninstall programs no longer used, etc.
What is the most important specification of a monitor for most users?
size
Give the name of a port that has a higher data transfer rate than
USB 2.0.
USB 3.0 ✓
* USB 3.1
* USB Type-C (or USB-C)
* FireWire
* Thunderbolt
