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Grade 11 IT Term 1 Revision Flashcards | StudBud
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Grade 11 IT Term 1 Revision
How can a single-core CPU multitask?
What is a Trojan horse?
Grade 11 IT Term 1 Revision
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1
What is a Trojan horse?
An email virus
Malware disguised as useful software
A security program
Antivirus software
2
How can a single-core CPU multitask?
Switching between tasks rapidly
Executing multiple instructions at once
Using a secondary processor
Using system memory
3
What describes multiprocessing?
Splitting CPU time between tasks
Using multiple computers
Storing programs in RAM
Running multiple programs
4
Example of data validation check?
Ensuring numeric input
Formatting text
Checking internet
Compressing files
5
What is one function of the motherboard?
Connecting components
Running applications
Protecting from viruses
Storing data
6
What does Plug-and-Play do?
Auto-configures a new device
Increases internet speed
Plays multimedia files
Protects from malware
7
Which is NOT a network type?
LAN
WAN
USB
HAN
8
Difference between virus and worm?
Virus auto-spreads, worm needs user
Worm auto-spreads, virus needs user
Virus affects software, worm affects hardware
Worm removable, virus not
9
What is a Home Area Network (HAN)?
A global network
A network for an entire city
A network in a home
A business network
10
What is a hard disk cache?
Solid-state drive
Backup storage
Internet file storage
High-speed memory in CPU
11
What is the purpose of BIOS?
Provide extra memory
Improve app performance
Translate programming instructions
Start the computer
12
Can multiprocessing happen on a single-core CPU?
No, single-core doesn't support it
Yes, if extra RAM
Yes, executes multiple instructions
No, needs multiple cores
13
What is the purpose of RAM?
Store BIOS
Increase internet speed
Permanent storage
Temporary storage for active programs
14
What is virtual memory?
Acts as temporary RAM
Backs up files
Increases CPU speed
Stores data permanently
15
Best solution for 'Low virtual memory'?
Delete temp files
Install new OS
Increase virtual memory or add RAM
Restart computer
16
Why is RAM-CPU point-to-point important?
Faster data transfer
Prevents malware
Improves portability
Increases battery life
17
What does ‘Low virtual memory’ mean?
Corrupt OS
Full hard drive
Running out of virtual memory
CPU overheating
18
Why keep backups off-site?
Protect from disasters
Increase storage space
Easier access
Prevent unauthorized access
19
What is NOT a threat to data?
Malware attacks
OS updates
Human error
Hardware failure
20
What is data validation?
Checking errors in a database
Encrypting data
Compiling code
Checking accuracy of data
21
What is true about bus connections?
Shared communication path
Multiple cables per connection
No longer used
Direct device communication
22
Which is NOT a network benefit?
Faster data sharing
Increased security risks
Centralized storage
Easier collaboration
23
Difference between primary and secondary memory?
Primary = external, Secondary = CPU
No difference
Primary = immediate access, Secondary = long-term storage
Primary = long-term, Secondary = temporary
24
Which statement is true about compilers?
Translate entire program at once
Only for debugging
Execute line by line
Not needed in modern programming
25
What does GIGO stand for?
Graphical Interface Graphical Output
General Input General Output
Garbage In, Garbage Out
Global Internet Gateway Online
26
What is bandwidth in networking?
Total data transferred
CPU processing speed
Hard drive space
Number of devices
27
What is a thread?
A type of cable
A storage area in RAM
A program part running independently
A programming error
28
What is a computer network?
Storage device
Collection of programs
System connecting multiple computers
Antivirus software
