O Level Solved Paper (m4-r5) | O Level Internet of things Paper

1. Each question below gives a multiple choices of answers. Choose the most appropriate one.

1.1. Microcontroller used in Arduino UNO prototyping board is

(a) ATmega328m
(b) ATmega328p
(c) ATmega2560
(d) ATmega356p

1.2.Which of the following is not a main element of IoT

(a) People
(b) Process
(c) Security
(d) Things

1.3. To easily interface add-on modules with Arduino we can use

(a) General PCB
(b) Connectivity circuit boards
(c) Arduino shields
(d) Other high-end Arduino boards

1.4.Which symbol is used in Arduino to calculate Modulo

(a) #
(b) $
(c) %
(d) !

1.5. With respect to the body language, the handshake conveys the confidence is

(a) Firm
(b) Limp
(c) Loose
(d) Incomplete knowledge

1.6. Botnet is often used to launch ___________ attack

(a) DoS
(b) DDoS
(c) Brute force
(d) Passive

1.7.The IIoT stands for

(a) Indepth Internet of T
(b) Innovative Internet of Things
(c) Industrial Internet of Things
(d) Information Internet of Things

1.8.The default method(s) in Arduino program is/are

(a) Only loop()
(b) only setup()
(c) setup() and loop()
(d) can be either loop() or setup()

1.9. which of the following communication medium supports highest data rate

(a) Optical fiber
(b) Wifi
(c) Ethernet
(d) Bluetooth

1.10. Which of the following is not a standard protocol used in IoT domain.

(a) Wifi
(b) Z-wave
(c) Zigbee
(d) LoMe


2. Each statement below is either TRUE or FALSE. Identify and mark them accordingly in the answer book.

2.1. The total resistance of resistor is low when connected in series.

2.2. Microprocessor has only processing capability, no serial interface or interrupts are available.

2.3. Capacitor blocks AC and allows DC to pass through.

2.4. Ohms law calculates the power consumed by an electrical appliance.

2.5. IIoT targets applications related to health and fitness.
2.6. Time management is primarily creating an environment conducive to effectiveness.
2.7. Arduino program statement for generating one second delay is - delay(100);
2.8. Stress is an emotional reaction to physical and psychological demands.
2.9. In ATmega328p, p stands for pico power.
2.10. Mirai botnet attack was originated from IoT cameras.

4. Fill in the blanks in 4.1 to 4.10 below, by choosing appropriate words and phrases given in the
list below:
4.1 ___________ IC contains memory, input-output peripherals along with processing
capability.
4.2 Analog Write method is used for ____________ pins in Arduino.
4.3 The term Internet of Things was first coined by ____________
4.4 Modern PC has ____________ as main component in CPU.
4.5 ___________is medium weighted extension of cloud computing in IoT domain.
4.6 ___________ is designed to launch botnet attacks from IoT .
4.7 The founder of Arduino project is ____________
4.8 Personality is derived from Latin word – persona meaning ____________
4.9 The statement describing what has happened is called _______________
4.10 _________ board of Arduino family can be used to sewn into clothing

PART TWO
(Answer any FOUR questions)
5.

(a) What is a sensor? Explain its working with example.

(b) What are the different communication modes available to connect things in an
IoT domain?

(c) What is the role of setup method in an Arduino program?

(4+8+3)
6.

(a) What are Things in IoT domain? what is meant by connected things.

(b) Write a C program to depict an IoT uses where LED is switched ON once the
button is pressed and released and next time button is pressed and released,
the LED is switched OFF

(7+8)
7.

(a) Explain the different functional blocks in a IoT ecosystem?

(b) Discuss the role of digital, analog and PWM pin in Arduino UNO?

(7+8)
8

(a) What are the determinants of personality? Explain motivation and self-esteem
in detail.

(b) Write a C program to interface DHT sensor and LED. The program will switch ON LED once the temperature rises above 25 degrees?

(7+8)

9. Briefly explain the following (Any three):

(a) Microcontroller

(b) OSI Model

(c) Stress management

(d) Etiquettes & manners

(e) Botnet