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WorksheetsAS ASSESSMENT
Total questions: 37
Worksheet time: 18mins
Which of the following is NOT a component of a control system?
Sensor
Actuator
Microprocessor
Compiler
In a feedback control system, the data sent back to the processor is called:
Signal
Output
Feedback
Error
What type of sensor is used in automatic streetlights?
Temperature sensor
Light sensor
Pressure sensor
Motion sensor
Which device converts a signal into mechanical motion in a control system?
Sensor
Transducer
Microcontroller
Actuator
The main purpose of a control system in an industrial process is to:
Reduce power usage
Improve safety
Automate tasks
All of the above
Which of the following is an example of a monitoring system?
Burglar alarm
CCTV surveillance
Central heating system
Traffic light control
In a closed-loop control system, the system adjusts itself based on:
Predefined commands
User input
Feedback from sensors
Random conditions
What type of sensor is used in smoke detection systems?
Light sensor
Heat sensor
Gas sensor
Motion sensor
A system that responds to real-time data is called:
Batch system
Reactive system
Real-time system
Monitoring system
The role of a microprocessor in a control system is to:
Store data
Process input signals and issue commands
Perform mechanical actions
Transmit feedback signals
Which of the following is NOT a characteristic of a good algorithm?
Clarity
Efficiency
Infinite loops
Correctness
What is the purpose of a flowchart?
To describe hardware components
To visually represent the logic of a program
To display system designs
To store data
A diamond shape in a flowchart represents:
Decision making
Start or stop
Input/output
Processing
What does the term "pseudocode" mean?
Code written in an unknown language
A representation of an algorithm in a simple, structured language
An error in coding
A real programming language
In a flowchart, arrows are used to indicate:
Data flow
Direction of process flow
Mathematical operations
Program termination
Which of the following is an example of an iterative process in pseudocode?
If-Else statement
WHILE loop
Variable declaration
Input/output statement
What is the purpose of an algorithm?
To write complex code
To solve problems logically
To replace flowcharts
To eliminate programming errors
A step in an algorithm that is executed based on a condition is called:
Input/output
Conditional step
Iteration
Data processing
What is the first step in writing a pseudocode?
Identify the output
Define the inputs
Understand the problem
Draw the flowchart
The term "iteration" in programming refers to:
Repeating a set of instructions
Making a decision
Stopping the program
Defining a variable
Which of the following is a method of phishing?
Sending fake emails
Calling users to trick them
Redirecting users to fake websites
All of the above
Smishing is carried out through:
Emails
Text messages
Phone calls
Websites
What type of malware disguises itself as legitimate software?
Trojan horse
Worm
Spyware
Adware
Pharming attacks typically involve:
Infecting a computer with a virus
Redirecting users to a fake website without their knowledge
Intercepting online communications
Sending spam emails
A virus differs from a worm because it:
Replicates itself
Needs a host file to spread
Is harmless
Encrypts data
Vishing involves tricking users via:
Emails
Phone calls
Fake websites
Text messages
Which of the following is NOT an example of malware?
Virus
Trojan horse
Spyware
Firewall
Which is a preventive measure against phishing?
Avoiding public Wi-Fi
Not clicking on suspicious links
Installing antivirus software
Using secure passwords
A strong password should NOT include:
Numbers
Special characters
Common words like "password"
Upper and lower-case letters
Fraud in e-security often involves:
Stealing sensitive information
Crashing websites
Sending spam emails
Modifying legitimate software
Types of sensor
Sound
Actuator
Pump
Light
Temperature
What is the third step in the basic monitoring and control system?
The sensor will constantly monitor the surrounding environment
The data readings from the sensor will normally analogue and will be converted to digital signal
The microprocessor will send a signal to an actuator to trigger any action that needs to be taken
The microprocessor processes the value and compares it to a pre-set value
Needed so the computer can understand analogue sensor readings
Digital to analogue converter (DAC)
Analogue to digital converter (ADC)
Sensor to digital conversion (SDC)
Digital compression (DC)
When an email is sent pretending to be from a bank, asking the recipient to click on a link and enter their login credentials, which are then stolen by the attackers. It is which kind of attack?
Smishing
Pharming
Phishing
Vishing
A cyber attack that redirects website traffic to a fake website to steal personal data.
Phishing
Smishing
Malware
Pharming
A types of malware that disguises itself as legitimate software to trick users into installing it, allowing unauthorized access to the victim's system.
Ransomware
Spyware
Trojan Horse
Adware
A type of malware that collects data about your browsing habits for the purpose of targeted advertising
Spyware
Adware
Ransomware
Rootkit
