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Presentation
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Information Technology (IT)
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Professional Development
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Practice Problem
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Easy
21070438 Linh
Used 33+ times
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0 Slides • 120 Questions
1
Multiple Choice
Question 1. Which of the following is not an essential component of an embedded system
Microprocessor
Ram
Keyboard
Input/output device
2
Multiple Choice
Question 2. Which of the following is true about interruption latency in an embedded system?
It is the time between the occurrence of an interruption and the start of its processing.
It is the time between the start of interrupting processing and the completion of interruption
processing.
It is the time taken by the system to acknowledge an interruption.
It is the time taken by the system to return from an interruption.
3
Multiple Choice
Which of the following is a real-time operating system (RTOS)?
Windows
Linux
VxWorks
MacOS
4
Multiple Choice
Which of the following is not a type of microcontroller architecture?
Harvard
Von Neumann
ARM
RISC
5
Multiple Choice
Which of the following is true about firmware in an embedded system?
It is software that is stored in read-only memory (ROM).
It is software that is stored in random access memory (RAM)
It is software that is stored on a hard disk
It is software that is executed by the microcontroller
6
Multiple Choice
Which of the following is an example of an analog-to-digital converter (ADC.?
SPI
UART
I2C
SAR
7
Multiple Choice
Which of the following is an example of a digital-to-analog converter (DAC)?
SPI
UART
I2C
R-2R ladder
8
Multiple Choice
Which of the following is true about watchdog timers in an embedded system?
They are used to monitor the system clock.
They are used to monitor the power supply.
They are used to monitor the system state.
They are used to monitor the temperature.
9
Multiple Choice
Which of the following is true about power management in an embedded system?
It is not necessary in battery-powered systems.
It is typically implemented using hardware and software techniques.
. It is not important for systems that operate continuously.
It is only important for systems with high power requirements.
10
Multiple Choice
Which of the following is true about real-time constraints in an embedded system?
They are not important for non-critical applications.
They can be relaxed if necessary to improve system performance.
They are typically specified in terms of response time and deadline.
They are only important for systems with simple control logic
11
Multiple Choice
Which of the following is a technique for reducing power consumption in an embedded system?
Increasing the clock frequency
Increasing the supply voltage
Using hardware accelerators
Using high-power peripherals
12
Multiple Choice
Which of the following is true about system-on-chip (SoC. design?
It involves integrating multiple chips into a single circuit board.
It involves integrating multiple components into a single chip.
It is only used in high-end embedded systems.
It is not compatible with real-time operating systems.
13
Multiple Choice
Which of the following is true about system testing in an embedded system?
It is not necessary if the software is thoroughly tested.
It is typically performed using simulation tools.
It is only important for safety-critical systems.
It involves testing the hardware, software, and system-level functionality.
14
Multiple Choice
Which of the following is true about interrupts in an embedded system?
They are always asynchronous.
They are always synchronous.
They can be either synchronous or asynchronous.
They are not used in real-time systems.
15
Multiple Choice
Which of the following is true about the CAN bus?
It is a hardware-based communication protocol.
It is only used in low-speed communication applications.
It is a master-slave communication protocol.
It is a peer-to-peer communication protocol
16
Multiple Choice
Which of the following is true about SPI communication?
It is a half-duplex communication protocol.
It is a full-duplex communication protocol.
It is a synchronous communication protocol.
It is a peer-to-peer communication protocol.
17
Multiple Choice
Which of the following is true about I2C communication?
It is a half-duplex communication protocol.
It is a full-duplex communication protocol.
It is a synchronous communication protocol.
It is a peer-to-peer communication protocol.
18
Multiple Choice
An embedded system is a combination of _______.
Software and Devices
Hardware and Devices
Hardware and software
Devices and application software
19
Multiple Choice
Which of the following are hardware components of an embedded system?
Computer processor
Device peripherals
Computer memory
Computer processor, memory and Device peripherals
20
Multiple Choice
Which of the following is true about UART communication?
It is a half-duplex communication protocol.
It is a full-duplex communication protocol.
It is a synchronous communication protocol.
It is a peer-to-peer communication protocol.
21
Multiple Choice
Which of the following is true about DMA in an embedded system?
It is not used in real-time systems.
It stands for “Direct Memory Access.
It is used for communicating with peripherals.
It is used for communicating with peripherals.
22
Multiple Choice
Which of the following is true about bootloaders in an embedded system?
They are used to load the operating system.
They are used to load the application software.
They are stored in volatile memory.
They are not important for system security
23
Multiple Choice
Which of the following is true about real-time operating systems (RTOS) in an embedded system?
They are only used in large-scale systems.
They are not important for system performance.
They provide deterministic scheduling of tasks.
They provide non-deterministic scheduling of tasks.
24
Multiple Choice
Which of the following is true about the memory hierarchy in an embedded
system?
The CPU cache is the largest and slowest level of memory.
The main memory is the smallest and fastest level of memory.
The secondary storage is the smallest and slowest level of memory.
The memory hierarchy is used to balance speed and capacity.
25
Multiple Choice
Which of the following is true about digital signal processing (DSP) in an
embedded system?
It is only used in audio and video processing.
It can be used for a variety of signal processing applications.
It requires an analog signal as input.
It is slower than analog signal processing
26
Multiple Choice
Which of the following is true about serial communication in an embedded system?
It is only used for short-distance communication.
It is slower than parallel communication.
It is more complex than parallel communication.
It is used for both short and long-distance communication
27
Multiple Choice
Which of the following is true about analog-to-digital conversion (ADC) in an embedded system?
It is used for converting digital signals to analog signals.
It is used for converting analog signals to digital signals.
It is not important for sensor applications
It is faster than digital-to-analog conversion.
28
Multiple Choice
Which of the following is true about pulse-width modulation (PWM) in an
embedded system?
It is used for digital-to-analog conversion.
It is used for analog-to-digital conversion.
It is used for controlling the duty cycle of a signal.
It is used for synchronizing signals.
29
Multiple Choice
Which of the following is true about inter-integrated circuit (I2C) in an embedded system?
It is a high-speed serial communication interface.
It is a low-speed serial communication interface.
It is a parallel communication interface.
It is used for audio and video processing.
30
Multiple Choice
Which of the following is true about universal asynchronous receiver-transmitter (UART) in an embedded system?
It is a low-speed serial communication interface.
It is a high-speed serial communication interface.
It is a parallel communication interface.
It is used for audio and video processing.
31
Multiple Choice
Which of the following is true about sensors in an embedded system?
They are used for processing digital signals.
They are used for converting analog signals to digital signals.
They are used for storing data.
They are used for transmitting data.
32
Multiple Choice
Which of the following is true about actuators in an embedded system?
They are used for processing digital signals.
They are used for converting analog signals to digital signals.
They are used for storing data.
They are used for controlling physical systems.
33
Multiple Choice
Which of the following is true about the pulse width modulation (PWM) technique in an embedded system?
It is used for analog-to-digital conversion.
It is used for controlling physical systems.
It is used for event-driven systems.
It is used for digital signal processing.
34
Multiple Choice
Which of the following is true about the inter-integrated circuit (I2C) protocol in an embedded system?
It is a high-speed serial communication interface.
It is a low-speed serial communication interface.
It is a parallel communication interface.
It is used for audio and video processing.
35
Multiple Choice
Which of the following is true about the serial peripheral interface (SPI) protocol in an embedded system?
It is a high-speed serial communication interface.
It is a low-speed serial communication interface.
It is a parallel communication interface.
It is used for audio and video processing.
36
Multiple Choice
Which of the following is true about the universal asynchronous receiver[1]
transmitter (UART) interface in an embedded system?
It is a high-speed serial communication interface.
It is a low-speed serial communication interface.
It is a parallel communication interface.
It is used for audio and video processing.
37
Multiple Choice
Which of the following is true about the direct memory access (DMA) technique in an embedded system?
It is used for analog-to-digital conversion.
It is used for controlling physical systems.
It is used for transferring data between memory and peripherals.
It is used for event-driven systems.
38
Multiple Choice
Which of the following is true about the watchdog timer (WDT) in an embedded system?
It is used for analog-to-digital conversion.
It is used for controlling physical systems.
It is used for detecting system errors and resetting the system.
It is used for event-driven systems.
39
Multiple Choice
Which of the following is true about the system on a chip (SoC. in an embedded system?
It consists of only the microcontroller and memory.
It consists of only the microcontroller and peripherals.
It consists of the microcontroller, memory, and peripherals on a single chip.
It consists of the microcontroller, memory, and peripherals on separate chips.
40
Multiple Choice
Which of the following is true about the real-time operating system (RTOS. in an embedded system?
It is only used in large-scale embedded systems.
It is not suitable for time-critical applications.
It provides a multitasking environment with predictable response times.
It does not provide any support for task scheduling.
41
Multiple Choice
Which of the following is true about the firmware in an embedded system?
It is a type of software that runs on the host computer.
It is a type of hardware that controls the operation of the microcontroller.
It is a type of software that is permanently stored in memory.
It is a type of software that is used for debugging and testing.
42
Multiple Choice
Which of the following is true about the device driver in an embedded system?
It is a type of hardware that controls the operation of the microcontroller.
It is a type of software that is permanently stored in memory.
It is a type of software that interacts with the hardware peripherals.
It is a type of software that provides a user interface.
43
Multiple Choice
Which of the following is true about the boot loader in an embedded system?
It is a type of hardware that controls the operation of the microcontroller.
It is a type of software that is permanently stored in memory.
It is a type of software that loads the operating system into memory.
It is a type of software that provides a user interface.
44
Multiple Choice
Which of the following is true about the watchdog timer in an embedded system?
It is a type of software that is used for debugging and testing.
It is a type of hardware that controls the operation of the microcontroller.
It is a type of hardware that provides a mechanism for detecting and recovering from system errors.
It is a type of software that provides a user interface.
45
Multiple Choice
Which of the following is true about the interrupting handler in an embedded system?
It is a type of hardware that controls the operation of the microcontroller.
It is a type of software that is used for debugging and testing.
It is a type of software that handles interrupts generated by the hardware peripherals.
It is a type of software that provides a user interface.
46
Multiple Choice
Which of the following is true about the system clock in an embedded system?
It is a type of hardware that controls the operation of the microcontroller.
It is a type of software that is used for debugging and testing
It is a type of hardware that provides a mechanism for synchronizing the operation of the system components.
It is a type of software that provides a user interface.
47
Multiple Choice
Which of the following is true about the power management unit (PMU. in an embedded system?
It is a type of hardware that controls the operation of the microcontroller.
It is a type of software that is used for debugging and testing.
It is a type of hardware that provides a mechanism for managing the power consumption of the system.
It is a type of software that provides a user interface, management, power sequencing, and power fault detection.
48
Multiple Choice
Which of the following is true about the real-time clock (RTC. in an embedded system?
It is a type of hardware that controls the operation of the microcontroller.
It is a type of software that is used for debugging and testing.
It is a type of hardware that provides a mechanism for keeping track of the time and date.
It is a type of software that provides a user interface.
49
Multiple Choice
Which of the following is true about the analog-to-digital converter (ADC. in an embedded system?
It is a type of hardware that controls the operation of the microcontroller.
It is a type of software that is used for debugging and testing.
It is a type of hardware that provides a mechanism for converting analog signals to digital signals.
It is a type of software that provides a user interface.
50
Multiple Choice
Which of the following is true about the digital-to-analog converter (DAC. in an embedded system?
It is a type of hardware that controls the operation of the microcontroller.
It is a type of software that is used for debugging and testing.
It is a type of hardware that provides a mechanism for converting digital signals to analog signals.
It is a type of software that provides a user interface.
51
Multiple Choice
Which of the following is not the hardware components of an embedded system?
Linker
Loader
Compiler
All
52
Multiple Choice
Which of the following designed system factors are minimized for an embedded application?
Performance
Cost and Size
Size and Performance
Performance and Cost
53
Multiple Choice
If the deadline of an embedded system cannot complete its task within its deadline then it is called ............................. type of embedded system.
Soft real time
Hard real time
Stand alone
Networked embedded system
54
Multiple Choice
If the task deadline of an embedded system is completed within its deadline, then it is called ______ type of embedded system.
Soft real time
Hard real time
Stand alone
Networked embedded system
55
Multiple Choice
Which of the following is an example of an embedded system that completes its task within its deadline?
Microwave oven and Traffic lights
Traffic lights and Buzzer
Buzzer and Microwave
None
56
Multiple Choice
In which of the following embedded systems devices communicates with servers?
Soft real time
Hard real time
Stand alone
Networked embedded systems
57
Multiple Choice
Which of the following are the examples of networked embedded systems?
ATM machine and Smart watch
Smart watch and Micro-oven
Micro-oven and ATM
All
58
Multiple Choice
LAN stands for _________.
Local Area Network
Local Avoiding Network
Location Area Network
None
59
Multiple Choice
WAN stands for _______.
Wide Area Network
Wide Avoiding Network
Wonder Area Network
All
60
Multiple Choice
Which of the following software represents machine-based code in target base code and verifies errors in code?
Compiler
Assembler
Debugger
All
61
Multiple Choice
Which of the following embedded system software converts each line of assembly based code to machine-based code at a time?
Compiler
Assembler
Debugger
All
62
Multiple Choice
Which of the following ES software are the examples of Assembler software?
C
C++
GNU
JAVA
63
Multiple Choice
Which of the following ES software are the examples of compiler software?
C
C++
ALL
JAVA
64
Multiple Choice
Which of the following hardware is used as alternative for an embedded system?
ICE (In-Circuit Emulator)
Emulator
Memory
Counters
65
Multiple Choice
Which of the following devices is volatile memory?
Flash drives
Computer BIOS
Motherboard
All
66
Multiple Choice
Which of the following IC are microprocessors?
MC6800
8085
8086
All
67
Multiple Choice
Which of the following IC are microcontrollers?
MC6800 and 8051
8051and ATmega328
ATmega328 and 8086
8086 and MC6800
68
Multiple Choice
8086 type processor is designed with how many bits?
4 bit
8 bit
16 bit
32 bit
69
Multiple Choice
Embedded software has the following components?
Program/script
OS
Firmware
All
70
Multiple Choice
Which architecture in DSP reduces the execution time?
Harvard
CISC
Von Neumann
Program storage
71
Multiple Choice
How does an embedded system communicate with the outside world?
Memory
Output
Peripherals
Input
72
Multiple Choice
What is an embedded system?
A stand-alone computer system
A system that performs a variety of computing tasks
A dedicated system designed to perform a specific task
A system embedded into a network
73
Multiple Choice
Which programming language is widely used in embedded system development?
Python
C
JavaScript
Ruby
74
Multiple Choice
Which component is the heart of an embedded system?
RAM
Input Device
Microcontroller
Output Device
75
Multiple Choice
Which of the following best describes the software in an embedded system?
General-purpose software
Operating System
Firmware
Utility software
76
Multiple Choice
Which of the following is NOT a characteristic of embedded systems?
Real-time operation
Task-specific functionalities
High storage capacity
Optimized for power consumption
77
Multiple Choice
Embedded systems usually have __________ boot-up times.
Long
Moderate
Short
Variable
78
Multiple Choice
Embedded systems are generally _________.
Re-programmable
Non-reprogrammable
Often connected to the internet
Designed for multiple tasks
79
Multiple Choice
In embedded systems, what does "RTOS" stand for?
Remote Transfer Operating System
Real-Time Operating Software
Real-Time Operating System
Rapid Transfer Operating System
80
Multiple Choice
Which feature is essential for an RTOS?
Predictable response time
High storage capability
Multitasking capability
Internet connectivity
81
Multiple Choice
Embedded systems are typically designed for:
Broad functionalities
User upgradability
Specific applications
General-purpose computing
82
Multiple Choice
Which type of memory is typically used for permanent storage in embedded
systems?
RAM
ROM
Cache
DDR
83
Multiple Choice
In the context of embedded systems, what does "DSP" stand for?
Digital Signal Processor
Dedicated System Protocol
Device Specific Programming
Digital Systems Programming
84
Multiple Choice
Which of the following is NOT a primary component of an embedded system?
Microcontroller
Input device
Graphics card
Output device
85
Multiple Choice
An advantage of embedded systems over general-purpose systems is:
Higher processing power
Greater versatility
Lower cost
Better multitasking
86
Multiple Choice
Which of the following best describes "firmware"?
Hardware components of an embedded system
Temporary software that is easy to modify
Software that provides UI for embedded systems
Software programmed directly onto hardware components
87
Multiple Choice
The primary purpose of an RTOS in an embedded system is to:
Enhance the user interface
Manage tasks in real-time
Provide internet connectivity
Boost the system's processing power
88
Multiple Choice
What kind of embedded system is used in washing machines and printers?
Standalone embedded systems
Mobile embedded systems
Networked embedded systems
Real-time embedded systems
89
Multiple Choice
In the context of embedded systems, "SoC" stands for:
Software of Communication
System of Components
System on Chip
Software on Chip
90
Multiple Choice
Which of the following is an example of a real-time embedded system?
Digital watch
Microwave oven
Airbag system in cars
MP3 player
91
Multiple Choice
What is the primary storage type used for fast data access in embedded systems?
A. Hard Disk Drive
Flash Memory
CD-ROM
Magnetic Tape
92
Multiple Choice
What is the primary role of a watchdog timer in an embedded system?
To boost performance
To reset the system if it hangs
To improve connectivity
To update the firmware
93
Multiple Choice
Which of this best describes the difference between an embedded OS and desktop
OS?
Embedded OS is more versatile
Desktop OS is used in mobile devices
Embedded OS is tailored for specific tasks
Desktop OS has limited functionality
94
Multiple Choice
An embedded system's lifecycle is typically:
Shorter than that of general-purpose systems
Longer than that of general-purpose systems
Same as that of general-purpose systems
Unpredictable
95
Multiple Choice
A common challenge in embedded system design is:
High power consumption
Resource constraints
Easy upgradability
High storage requirements
96
Multiple Choice
Which one of the following offers CPUs as integrated memory or peripheral
interfaces?
Microcontroller
Microprocessor
Embedded system
Memory system
97
Multiple Choice
What is CISC?
Computing instruction set complex
Complex instruction set computing
Complementary instruction set computing
Complex instruction set complementary
98
Multiple Choice
What is RISC?
Ratio instruction set complex
Reduced instruction set computing
Accessing peripheral through interface
Address programming interface
99
Multiple Choice
What does API stand for?
Address programming interface
Application programming interface
Accessing peripheral through interface
Address programming interface
100
Multiple Choice
Intel Pentium 4 (2004. has 3.0 GHZ clock speed and about 9000 MIPS. IPC equals:
1
2
3
4
101
Multiple Choice
What does IPC stand for?
Internal Processer and Controller
Instructions per Cycle
Instructions per Clock
Instructions process in computer
102
Multiple Choice
In little endian format:
The least significant byte (LSB) is stored first (at the lowest memory address), and the most
significant byte (MSB) is stored last (at the highest memory address).
The least significant byte (LSB) is stored last (at the highest memory address), and the most
significant byte (MSB) is stored first (at the lowest memory address).
The least significant byte (LSB) is stored last (at the lowest memory address), and the most
significant byte (MSB) is stored first (at the highest memory address).
The least significant byte (LSB) is stored first (at the lowest memory address), and the most
significant byte (MSB) is stored last (at the highest memory address).
103
Multiple Choice
In big endian format:
The least significant byte (LSB) is stored first (at the lowest memory address), and the most
significant byte (MSB) is stored last (at the highest memory address).
The least significant byte (LSB) is stored last (at the highest memory address), and the most
significant byte (MSB) is stored first (at the lowest memory address).
The least significant byte (LSB) is stored last (at the lowest memory address), and the most
significant byte (MSB) is stored first (at the highest memory address).
The least significant byte (LSB) is stored first (at the highest memory address), and the most
significant byte (MSB) is stored last (at the highest memory address).
104
Multiple Choice
Level 1 of cache memory has:
Lowest speed
Highest speed
Biggest size
Smallest size
105
Multiple Choice
What does CMOS stand for?
Complementary mix operating system
Complementary metal oxide semiconductor
Carry multiplex open system
Current mobile operating system
106
Multiple Choice
When increasing clock speed of processor:
Instruction speed is reduced
Time of instruction process is no change
Power consumption of Chip is increased
Power consumption of Chip is decreased
107
Multiple Choice
ARM is the name of:
Processor architecture
Memory architecture
Communication bus
Communication standard
108
Multiple Choice
The memory which has a fixed content from manufacturer is:
RAM
EEPROM
MROM
Flash
109
Multiple Choice
To control active-low LED, how does LED connect to micro controller (µC)?
Anode of LED connects to the pin of µC, Cathode of LED connects to the Vcc
Anode of LED connects to the pin of µC, Cathode of LED connects to the Ground
Cathode of LED connects to the pin of µC, Anode of LED connects to the Vcc
Cathode of LED connects to the pin of µC, Anode of LED connects to the Ground
110
Multiple Choice
Translation flow from source code written in C programming to Assembly for
embedded circuit is:
Pre-processor -> Processor -> Compiler -> Loader
Processor -> Compiler -> Assembler -> Linker/loader
Pre-processor -> Compiler -> Assembler -> Linker/loader
Loader-> Compiler-> Assembler -> Linker
111
Multiple Choice
Optimization source code from C programming to Assembly is processed in:
Processor
Linker
Compiler
Assembler
112
Multiple Choice
Which is not an embedded system:
Laptop
Washing machine controller
Light automotive controller
Arduino micro controller
113
Multiple Choice
Which is not a feature of embedded system:
Specialization
Reliability
General purpose
Compact
114
Multiple Choice
Embedded system can be applied to:
Medical and Industrial
Medical and Industrial
Consumer and specialized electronics
ALL
115
Multiple Choice
Which is the name of an embedded system (application classification.?
Data communication
Signal amplification
Harmonic oscillator
None
116
Multiple Choice
Embedded system has:
Processor, memory, input data reader circuits, communication ports
Processor, memory card reader, I/O ports, communication ports
Processor, memory, I/O ports, communication ports
Processor, memory, I/O ports, USB
117
Multiple Choice
In the embedded system, which layer is indispensable?
Application software
Hardware
System software
Middleware
118
Multiple Choice
In the design of an embedded system, which does not model need specific plan?
Spiral
Waterfall
Code-and-fixed
Big-bang
119
Multiple Choice
Which layer is very near to the user?
Application software
System software
Hardware
Depend on package design and IC position inside an embedded system
120
Multiple Choice
The basic difference between Von Neumann and Harvard architecture is:
ALU structure
Register’s structure
Bus and memory organization
ALL
Question 1. Which of the following is not an essential component of an embedded system
Microprocessor
Ram
Keyboard
Input/output device
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