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ITGS Vocabulary
ITGS Vocabulary
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1
Embedded systems are found in..
GPS systems, they have to provide immediate output
cars, where they run for a very short time
washing machines, where they are not real-time systems
traffic lights, their reliability is not an important aspect
2
Which statements are true in case of bitmap graphics?
Images consume less storage space
store data as mathematical equations
Increasing size reduces quality
zooming in increases quality
3
Certificate Authority is used to
verify the authority of yourself
verify the security of the website
verify the owner of the public key
verify that the sender is not a bot
4
Message that is transformed into a non-understandable form is
plaintext
CAPTCHA
ciphertext
5
How to avoid malicious software?
Downloading movies illegally
By clicking on colourful ads
Installing anti-virus software
Opening email attachments you were excepting
6
Data synchronisation can take place with a(n) ............ connection
infra-red
UBS
bluetooth
web cam
7
Access levels are set, so that
everything in the system would be secured
some people wouldn't access certain files and modify them
in case of emergency, some users would access certain files
no one but the administrator gets to modify anything
8
Computer Misuse Act is for:
authorised modification of data stored on a computer
commiting further crime when gaining unauthorised access
gaining authorised access to a computer system
gaining unauthorised access to a computer system
9
Policy, whereby individuals' data will be collected unless specifically requested not to be is
opt-out policy
opt-in policy
10
Which statements are true in case of vector graphics?
images consume lots of storage place
store data as grids of pixels
doesn't require fast computer to manipulate complex graphics
No quality loss when zooming in
11
Optical mark recognition (OMR) is used to
mark down answers in surveys
recognise false statements in essay drafts (google docs)
check trends in webpages
capture human-marked data from document forms
12
Intellectual Property
refers to 'Homo sapiens' possessions', includes estate
refers to 'creations of the mind', includes films, essays
refers to 'artificial intelligence', includes built-in brain
refers to 'smart people's property', includes supercomputers
13
Which statement is true regarding CSV(comma separated values) and TSV(text separated values)?
neither save fields or records into plain text files
both save fields and records into plain text files
14
an electrostatic digital printing is done with a(n)
inkjet printer
dot matrix printer
laser printer
15
'Digital divide' means
A number of PC's divided by the number of its hardware parts
the gap between people who can access IT and who can not
when digital gadgets are broken/divided
16
Composite image is recieved when
multiple colour contrasts are highlighted on one picture
the compositor of the image has made it from the scratch
editing tools are used to combine images
17
Malware is used to infect computers with
rootkits, which gather all data and performs an ID theft
backdoors, which allow remote third party user to control it
stuxnet, which sends spam constantly in dos form
blacklists, which prevent accessibility to malicious sites
18
Different kinds of GPU:
onboard graphics
single add-on cards
multiple take-off cards
offboard graphics
19
The failover system mechanism is used to
to increase the reliability and availability of IT resources
switch between system components in case of downtime
to decrease the reliability and availability of IT resources
turn off the computer in case of downtime
20
Converenge - computers in the past can perform tasks that are today done in separate devices
false, the other way around
true
21
Fields which are frequently used to search a table are called
MySQL
primary keys
indexes
records
22
The term normalisation is defined as process of
making a relational database of numbers with 2 decimalplaces
creating a relational database which has no redundant data
creating a relational database which has only redundant data
23
What characterises a Braille keyboard?
Braille dots have combinations to produce lettersof alphabet
Braille keyboard uses a small number of keys
Braille dots are placed on a standard keyboard
24
Examples of application suites are:
Paint
The Microsoft office
Spotify
Adobe
25
common formats for general file compression include
zip
4zip
rar
gimp
26
Radio-frequency identification (
RFID
) uses electromagnetic fields to
identify and delete tags attached to objects
identify and track tags attached to objects
identify and rewrite tags attached to objects
identify and modify tags attached to objects
27
Compression in images is used to reduce what?
amount of storage space required
text lenght in videos/music
repeated data in images
the variety of colours used
28
How to create poor presentations:
text is hard to read against colourful background
big font with short sentences
heading is black and formal
29
All IT systems have these three essential components:
windows xp, photoshop, processing
motherboard, video card, output
input, output, processing
input, gimp, the sims 3
30
Shared devices connect directly to switch which is
like a smarter version of hubs, they save a bandwith
most basic and cheapest device compared to similar gadgets
31
After the sender sends their message, it is ........... using their private key
digitally filed
digitally signed
digitally analysed
digitally modified
32
How does anti-virus work?
Combines definition based scanning and heuristic scanning
Shuts the system, deletes all malicious files and restarts
Runs in the background and scan files after they are opened
Identifies viruses by virus definition file
33
TSL (transport layer security) is what?
An older encryption algorithm used by wireless networks
Standard encryption protocol used for secure communication
Digital sertificate for idendity verifications
34
What does OCR stand for?
Only Character Recognition
Optical Character Recognition
Original Character Recognition
Optical Character Resolution
35
'Character check' checks ..
that a field contains only certain characters
that numeric field is above or below a certain value
whether the field is blank
the number of characters in a field
36
Video cardsare also known as
GPU
Processor unit
CPU
Professor unit
37
Embedded system is
combination of computer hardware and OS
combination of software and OS
combination of computer hardware and software
38
Biometric enrolment is a process where
data is analyzed by biometric systems
data is sent away by biometric enrolling
data is collected by biometric systems
39
Virtual Private Network uses encryption to create an encrypted tunnel from
one server to metropolitan area network in the same location
one computer to a local network in another location
one computer to a storage area network in another location
one server to campus area network in the same location
40
All bitmap image are stored in the computer as what?
rectangular lattice of millipixels
rectangular grid of pixels
quatrefoilar grid of megapixels
41
Software which gives the freedom for users to modify its code and share it and is free forever:
commercial software
FOSS
shareware
freeware
42
There's often no secondary storage devices, a slow processor and small amount of RAM in
chubby clients
fat clients
thin clients
43
Companies that probably use supercomputers
Selver
AMD
McDonalds
NASA
44
set of rules that govern identification of devices on a network and how the info is exchanged
TCP (transmission Control Protocol)
WMI (Windows Management Instrumentation)
IP (internet protocol)
45
One of the biggest issues related to databases (stated in ITGS workbook) is
lack of data (amount)
data integrity
not enough applications to make tables
46
Network monitoring systems perform checks including:
if a web site's response time is within an acceptable time
if bandwith is being used efficiently
monitoring and checking server resources
looking for regular traffic patterns
47
What is the main difference between LCDs and CRTs?
CRT displays produce higher quality images
LCD displays are generally cheaper, thinner and heavier
LCD displays are typically lighter
LCD screens have native resolution
48
Ethical issues raise questions like:
What are the disadvantages of this system?
How did the IT development emerge?
What are the consequenses?
Who is responsible?
49
IP/TCP in ITGS stands for
internet provider/transfer client problems
internet problemacy/translate control protocol
internet protocol/transmission control protocol
internet protocol/transmission client protocol
