daws

D
When you have a potential IoT idea you want to develop properly, what must you first define?
A.Its Unique Value Proposition
B.Problem it sets out to solve
C.Route to market

B
Is it useful completing a business plan for a personal or in-house IoT product?
A.Yes

A
What is Fog computing?
A.It is a type of computing that enhances P2P applications.
B.It is a type of computing that sends controller data to a sensor.
C.It is a type of computing that disperses servers and services globally in distributed data centers.

D
What is an example of cloud computing?
A.A continuous interaction between people, processes, data, and things.
B.A service that offers on-demand access to shared resources.
C.A network infrastructure that spans a large geographic area.

B
What is used to uniquely identify devices connected to the Internet?
A.gateway address
B.IP address
C.device name

B
Which word or phrase most accurately sums up the main benefit of IoT technology?
A.Accuracy
B.Efficiencies
C.Energy use

B
How can IoT help combat climate change?
A.Smart devices working to reduce energy use.
B.Prevention of methane release from cows.
C.Free internet in cities to help people operate in the city more easily.

A
Which of the following disruptions - caused by vehicles becoming fully autonomous - were the people surveyed most worried about?
A.Reduced private ownership of cars.
B.Less traffic lights on roads.
C.Reduced number of driving jobs.
D.Less space needed for parking.

C
Smart cities use the Internet of Things to improve the quality of citizens' lives. True or False?
A.True

A
Which of the following is one of the ways IoT monitoring of dairy cows improves dairy farming?
A.The system tells you when cows are ready for milking, saving time spent on monitoring the herd.
B.The system can sound alarms when cows roam into neighbouring paddocks.
C.The system notices the cows that are unwell, so they are treated quicker, which speeds up recovery time.

C
What are the descriptors for Big Data? (as coined by IBM)
A.Speed, True, Diversity, Amount
B.Vast, Velocity, Variance, Verified

C
Which of the following functions does NOT apply to a typical data centre's services?
A.Data storage
B.Data management
C.Data analysis
D.Data security

E
Which terminology deals with the excitation or stimulus applied to a system from an external source, for the generation of an output?
A.Input signal
B.Output signal
C.Error signal
D.Analogue signal

A
Closed-loop Systems use feedback where a portion of the output signal is fed back to the input to reduce errors and improve stability.
A.True

A
Which challenge comes under securing the information?
A.Signaling
B.Security
C.Presence detection

B
Which challenge comes under IoT devices, reliable bidirectional signaling.
A.Signaling
B.Security
C.Presence detection

A
Which challenge comes when we use many devices on the same network?
A.Signaling
B.Security
C.Presence detection

D
Which of the following issues are considered in IoT?
A.Security Issue
B.Reliablity Issue
C.Standard Issue

D
IoT is a paradigm that involves ubiquitous presence in the environment.
A.True

A
IoT stands for __________
A.Industrial Internet of Things
B.Internet Internet of Things
C.Intelligence Internet of Things

A
Which possibility ensures load balancing and peak levelling of energy consumption?
A.Transportation and logistics
B.Energy and utilities
C.Automotive

C
Which possibility connects the production line to suppliers?
A.Transportation and logistics
B.Energy and utilities
C.Automotive

D
Which possibility is highest contributor to cost overhead for manufacturing facilities?
A.Transportation and logistics
B.Energy and utilities
C.Plant control flow operation

D
_________ will enable the humans to access, control and manage the operation.
A.IoT
B.Bigdata
C.Network

A
In _________ the embedded devices and objects working under IoT are resource constrained.
A.Health
B.Industry
C.Home

D
What type of networks is interacting under IoT?
A.Heterogeneous only
B.Homogeneous Only
C.Both hetero and homogeneous

A
Managing of resources can be done by implementing ________
A.Protocols
B.Algorithms
C.Networks

D
Resource management will elaborate the key aspects of _________
A.Industrial managements
B.Energy management
C.Network management

C
Which category finds an increase in applications targeting health and fitness?
A.Personal IoT
B.Group IoT
C.Community IoT

A
Which category is used in the context of connected cars?
A.Personal IoT
B.Group IoT
C.Community IoT

B
Which category could be used by citizens to contribute to a smart city?
A.Personal IoT
B.Group IoT
C.Community IoT

C
Which category is used for business to consumer process?
A.Personal IoT
B.Group IoT
C.Community IoT

D
Voice recognition software and virtual assistant programs offer for ________ and _________
A.Communication
B.Communication and Entertainment
C.Entertainment

B
_________ is particularly appealing when the human's hands or eye are otherwise occupied
A.Voice recognition
B.Sound recognition
C.Amplitude recognition

A
Voice telephony is an efficient means of __________ with machines that can listen.
A.Mono-directional voice communication
B.Bi-directional voice communication
C.Voice recognition

B
Without ___________ IoT devices can easily lead to catastrophe.
A.Software
B.Management system
C.Cloud

B
What IoT collects?
A.Human generated data
B.Sensor data
C.Machine generated data

C
Which requires data stream management?
A.Bigdata
B.IoT
C.Bigdata & IoT

B
The IoT operates at ___________ scale
A.Machine
B.Human
C.Device

A
Fritzing is open source, free software.
A.True

A
Which of these is NOT electronic equipment you can use for IoT prototyping?
A.Arduino microcontroller
B.Raspberry Pi microprocessor
C.Blackberry router

C
What does the 'things' in Internet of Things refer to?
A.Smart phones and tablets
B.Machines and vehicles that operate themselves

C
The IoT increases the potential for machines to make smart decisions based on collected data, and to act on them, leaving people (apart from the original programmers and those setting the parameters) out of the loop. This is called M2M. Select an example of M2M from the descriptions below.
A.A sensor on a milking cow indicates that she is moving in a way that suggests she in on heat and will be receptive to insemination. She is placed on a watch list and the herd manager chooses to draught her out, after milking, for insemination.
B.An autonomous ambulance on an emergency call approaches an intersection and communicates with the signals to change the lights from red to green, to allow smooth passage through the intersection.

B
What protocol is good for communication of IoT devices with restricted power and low data rates over a range of a few kilometres ?
A.Bluetooth
B.Zigbee
C.LoRaWAN
D.4G

C
What is the main advantage of IPv6, and why does it suit IoT?
A.IPv6 provides many more IP addresses, which increases the potential number of hosts and amount of data.
B.IPv6 is more up to date protocol with leaner mechanisms which suit modern microprocessors.

A
Which of these media is currently NOT used in communicating data?
A.Wireless / electromagnetic waves
B.Hydrogen cables / electron ionisation
C.Fibre optics / pulses of light

B
Communication in a network is carried via a _________ ?
A.Sensor
B.Router
C.Medium
D.Device

C
When you upload a photo from your camera to a social media site, what kind of path is the information likely to travel?
A.End device -> Modem -> Controller -> Your ISP -> Networks and Routers-> social media site's ISP -> social media site's server
B.End device -> Controller -> Modem -> Your ISP -> Networks and Routers -> social media site's server -> social media site's ISP
C.End device -> Controller -> Modem -> Your ISP -> Networks and Routers-> social media site's ISP -> social media site's server

C
Why will IoT put a strain on internet infrastructure?
A.The unprecedented amount of data
B.The variety of IoT protocols

A
Sometimes many devices share the same set of wires. This connection mode is referred to as a ________?
A.Train
B.Bus

B
In a communications network, peers can send messages to:
A.Peers in the same layer only
B.Peers in any layer

A
What is another way of thinking of the DTE?
A.As a Modem
B.As a Computer

B
In telecommunications, RS-232 is used for _______communication transmission of data.
A.serial

A
Bluetooth uses low power radio waves in the frequency range of ...?
A.2.4 - 2.485Hz
B.2.4 - 2.485GHz

B
Bluetooth has three classes, namely:
A.Industrial, Scientific, Medical
B.Class 1, Class 2 and Class 3 (100m, 10m and 1m range)

B
Bluetooth is named after:
A.The scientist who invented it, who had blue teeth
B.The company that invented it, Ericsson's founder Harald Bluetooth

C
The huge numbers of devices connected to the Internet of things have to communicate automatically, not via humans. What is this called?
A.Bot to Bot (B2B)
B.Machine to Machine (M2M)
C.InterCloud

B
Which characteristics involve the facility the thing to respond in an intelligent way to a particular situation?
A.Intelligence
B.Connectivity
C.Dynamic Nature

A
________ empowers IoT by bringing together everyday objects.
A.Intelligence
B.Connectivity
C.Dynamic Nature

B
The collection of data is achieved with ________ changes.
A.Intelligence
B.Connectivity
C.Dynamic Nature

C
The number of devices that need to be managed and that communicate with each other will be much larger.
A.Intelligence
B.Connectivity
C.Dynamic Nature

D
________ a cellular network is expensive, especially with many IoT devices.
A.Signaling
B.Security
C.Bandwidth

C
Communication between ________ and ________ is encrypted for security.
A.Cloud and device
B.End user and data center
C.Network and device

B
The embedded devices will form _______ network
A.ATM
B.Ethernet
C.FDDI

D
_______ are used to overcome the challenges of managing the resources of the IoT.
A.Clustering
B.Software agents
C.Synchronization techniques

D
BAN stands for ________
A.Body Area Network
B.Brain Area Network
C.Body Android Network

A
NFC stands for ________
A.Near Fast Communication
B.Near Field Communication
C.Near Field Customer

B
Phones act as actuators too.
A.True

A
WiFi uses how much frequency?
A.2.2GHz
B.3GHz
C.3.5GHz

D
Bluetooth will transmit the data over the frequency band _________
A.2.4 to 2.7 GHz
B.2.4 to 3 GHz
C.2.4 to 2.485 GHz

C
Bluetooth operates at short distances.
A.True

A
Bluetooth will drain battery life.
A.True

A
What data security concerns do IoT devices pose?
A.The device being hijacked to harm another device or system
B.Because they are small and low powered, they can't carry much software including security software leaving them open to data theft or disruption

B
How does the addition of data due to IoT create privacy issues?
A.Systems struggle to deal with the large amount of data so data gets 'stuck outside security' waiting to be dealt with
B.Multiple data sets each stripped of identification initially can be combined as a whole and reveal identity
C.More data going through security measures inevitably means more security breakdowns and data leakage

B
Which of the following is NOT a security measure?

A.Encryption
B.Password
C.Firewall

D
How does fog computing reduce security risks?

A.It acts on IoT data closer to the source
B.It creates unclear connections that are difficult to intercept
C.It reduces the need for remote management

A
The resistance of a heater coil is 10 Ohms and the input voltage is 120V. What is the current?

A.12 amps
B.1,200 amps

A
If you need to increase the current through a resistor in a circuit, what would you do?

A.Decrease the voltage applied to the resistor.
B.Increase the voltage applied to the resistor.
C.Increase the room temperature.
D.Increase the value of the resistor.

A
A DC motor requires a current of 10 Amperes to operate at full speed. The battery attached supplies 12 Volts. What resistance is required in the circuit to provide exactly 10 A to the motor?

A.12 ohms
B.120 ohms

C
When current flows through a resistor, the power involved produces heat. What measures can be taken to reduce the generation of heat inside a computer?

A.Reduce the voltage from the power supply.
B.Increase the total resistive value in the circuit.
C.Increase the physical size of resistors.
D.Use capacitors on the output of the power supply.

A
The combination of conditioning plus the element being controlled by the computer is called a _________ ?

A.DAC
B.Instrumentation amplifier
C.Motor

D
The combination of a transducer with its signal conditioner is called a _______________________ ?

A.Instrumentation Amplifier
B.Sensor
C.Thermistor

B
What is the microcontroller used in Arduino UNO?

A.ATmega328p
B.ATmega2560
C.ATmega32114

A
What does p refer to in ATmega328p?

A.Production
B.Pico-Power
C.Power-Pico

B
Arduino shields are also called as_________

A.Extra peripherals
B.Add on modules
C.Connectivity modules

B
Which is the software or a programming language used for controlling of Arduino?

A.Assembly Language
B.C Languages
C.JAVA

D
A program written with the IDE for Arduino is called _________

A.IDE source
B.Sketch
C.Cryptography

B
Arduino IDE consists of 2 functions. What are they?

A.Build() and loop()
B.Setup() and build()
C.Setup() and loop()

C
How many digital pins are there in the UNO board?

A.14
B.12
C.16

A
_________ board allows sewn into clothing.

A.UNO
B.RedBoard
C.LilyPad

C
There is efficiency gains from ________ all sorts of equipment.

A.Implementation
B.Analogous
C.Evolution

D
A provider which produces 99 percent uptime ________

A.Security issues
B.Network Issues
C.Programming issue

B
With physical security, the stakes are incredibly ________

A.Very high
B.Low
C.Very low

D
Which digit does the colour yellow denote on a resistor colour band?

A.2
B.4
C.7

B
A 47 Kohm resistor would have which colours on its first three bands?

A.red, white, blue
B.yellow, violet, white
C.orange, yellow, violet

D
Which digit does the colour orange denote on a resistor colour band?

A.9
B.1
C.6

D
A resistor's first three colour bands are red, yellow and black. What is its value?

A.240 ohms
B.24 ohms
C.32 ohms

B
Which digit is represented by a blue band on a resistor?

A.4
B.8
C.6

C
Which digit is represented by a black band on a resistor?

A.100
B.1
C.1000

D
A resistor's first three colour bands are brown, green and red. What is its value?

A.1500 ohms
B.250 ohms
C.2000 ohms

A
Which colour represents the digit 6 in the resistor colour code?

A.red
B.blue
C.pink

B
Which of these colours is NOT used in the resistor value colour code?

A.black
B.turquoise
C.white

B
A micro-controller is...

A.small CPU made of transistors and conductors of heat and sound sensor
B.portable circuits capable of making other circuits
C.small computer on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals

A
What does GPIO stand for?

A.General Purpose Inner Outer Propeller
B.General Purpose Interested Old People
C.General Purpose Input Output Pins

C
Before your program "code" can be sent to the board, it needs to be converted into instructions that the board understands. This process is called...

A.Stop
B.Create Sketch
C.Compile

C
This shows you what the IDE is currently doing and is also where error messages display if you make a mistake in typing your program. (often called a syntax error)

A.Sketch Editor
B.Text Console
C.Line Number

B
This shows you what line number your cursor is on. It is useful since the compiler gives error messages with a line number.

A.Sketch Editor
B.Text Console
C.Line Number

C
A function is a series of programming statements that can be called by name. Which command is called once when the program starts:

A.loop()
B.(output)
C.setup()

C
A function is a series of programming statements that can be called by name. Which command is called repetitively over and over again as long as the Arduino has power.

A.loop()
B.(output)
C.setup()

A
A function is a series of programming statements that can be called by name. Which command delays the LED by a number of milliseconds is.

A.loop()
B.delay()
C.setup()

B
What is this line of code: // the loop function runs over and over again forever

A.A statement
B.A single line comment
C.A function definition

B
What is this line of code: void loop() {

A.A statement
B.A single line comment
C.Part of a function definition

C
Which pin has a built-in LED?

A.Pin 13
B.Pin 10
C.Pin 8

A
What are two two main types of Arduino pins?

A.Digital and analog.
B.Digital and modulation.

A
If you make a voltage divider circuit with R1 = 10K and R2 = 10K, and your Vin is 12V, what will be your Vout?

A.12V
B.10V
C.6V

C
How many bits are there in a byte?

A.256
B.8
C.16

B
On a breadboard, where do you put a DIP package?

A.In the middle of the board
B.On the bottom side of the board
C.In the power rails

A
What is the nominal voltage of 6 AAA batteries connected in parallel?

A.6V
B.9V
C.12V

D
This is an unsigned data type that occupies 1 byte of memory. Same as the byte datatype. It encodes numbers from 0 to 255.

A.highByte()
B.unsigned char
C.unsigned long

B
This is used to include outside libraries in your sketch. This gives the programmer access to a large group of standard C libraries (groups of pre-made functions), and also libraries written especially for Arduino.

A.#include
B.break
C.void

A
This clears (writes a 0 to) a bit of a numeric variable.

A.bitClear
B.sizeof()
C.pinMode

A
The void keyword is used only in function declarations. It indicates that the function is expected to return no information to the function from which it was called.

A.HIGH
B.void
C.pin

B
Sensors play a big part in the Internet of Things, collecting data from the physical world. There is a long and growing list of sensor types, but some of the more common ones are found in smart phones. Which sensor in your phone collects information on your physical activity for health apps?
A.Gyroscope
B.Magnetometer
C.Proximity sensor

D
In an industrial fan maintenance system, what physical change does Ian Howard say a sensor might detect, measure and transmit data on?
A.Vibration
B.Blade speed
C.Power

A
When the gate system at the dairy closes one gate and opens another to direct a cow into a particular area, what is (or what are) the actuators in play?
A.RF antennae detecting ID of cow
B.Light sensors detecting cow in gate
C.Pneumatic arms on gate mechanism

C
All of the parts of a complete IoT process need programming. But where in the following IoT process is programming needed for the system to be Internet of Things?
A.Soil sensor to microcontroller to the Cloud to microcontroller to fertilising mechanism
B.Soil sensor and Cloud and fertilising mechanism
C.Microcontroller and Cloud
D.Soil sensor and Microcontroller

C
Which of these sentences could be a line of programming code?
A.If temperature is more than 30 degrees C, run fan, else, run heater
B.When it gets too hot, turn the fan on otherwise keep heating the room

A
In the reticulation (water irrigation) system, what type of device is the outdoor camera?
A.Sensor
B.Actuator
C.Control

A
What sort of actuator would you use to control the movement of a conveyor belt?
A.A linear actuator
B.An AC motor
C.A thermocouple
D.A water pump

B
Which of the following IS NOT criteria to help select a wired communication protocol?
A.Speed
B.Number of wires per connection
C.Ability to transmit and receive information at the same time
D.Number of devices that need connecting
E.Distance to the nearest power point

F
If we intend to include a servo motor as an actuator, what feature should we include when selecting a microcontroller?
A.Analogue to Digital converter
B.Digital to Analogue converter
C.GPIO pins
D.Pulse Width Modulation pin

D
In an IoT smart home system, sensors are connected to the home power outlet and are required to process some part of the collected data. What would be the best option to connect sensors to each other, as well as a central location for Internet connection, where high data rate is required?
A.Bluetooth
B.6LowPAN
C.WiFi

C
From the list below, which is the LPWAN technology?
A.LoRa
B.WiFi
C.LTE

A
One advantage of a closed loop feedback system is:
A.Simplicity of design
B.Ability to react to disturbances in the system
C.It is less stable than an open loop system
D.Depends on calibration for accuracy

B
Fill in the blank. If we want to measure the temperature of a solution in a chemical process to within 0.1 degree Celsius, over a range of 100 degrees, our development board would need a ____________ converter to meet that requirement for accuracy.
A.8 bit
B.10 bit
C.16 bit

B
________ provide the means to create capability that reflects true awareness of the physical world and people.
A.Sensors
B.Heterogeneity
C.Security

A
________ in IoT as one of the key characteristics, devices have different hardware platforms and networks.
A.Sensors
B.Heterogeneity
C.Security

B
IoT devices are naturally vulnerable to ________ threats.
A.Sensors
B.Heterogeneity
C.Security

C
What is the popular method of organizing wireless network topologies?
A.Software
B.Synchronization
C.Network

D
What is the role of communication protocol in IoT?
A.Smart cities
B.Cyber physical system
C.Mac layer issue

C
Which of the following is the future application of IoT?
A.Role of green IoT system
B.QoS in communication
C.Secure communication

A
The object of IoT will be empowered by ___________
A.Network
B.Cloud
C.Devices

C
__________ layer is the communication layer that connects the IoT devices with WAN.
A.Internet layer
B.Application layer
C.Sensor layer

D
________ either built into smoke alarm and thermostat or in the form of small plug - in.
A.Microphones
B.Loudspeaker
C.Microphone and loudspeaker

A
________ Will reduces the cost of the devices.
A.Intuitive
B.Voice telephony
C.Voice recognition

D
How many analog pins on an Arduino Uno board?
A.5
B.6
C.7

B
Which of the following function is used to set any pin in the state of HIGH/LOW ?

A.digitalRead
B.digitalWrite
C.analogWrite

B
What does PWM stand for?

A.Pulse Width Modulation
B.Pulse Wide Module
C.Preventive Width Modulation

A
Which function in the Arduino IDE is used to set any pin in output or input state?

A.digitalWrite
B.delay
C.pinMode

C
How many PWM pins are present in the Arduino UNO?

A.1
B.3
C.6

C
What among the following is an example of external interrupt for the Arduino?

A.Button
B.Resistor
C.LED

A
What will be the correct syntax to make a digital pin (say D2) as an output pin?

A.pinMode(2,output)
B.pinMode(2,Output)
C.pinMode(2,OUTPUT)

C
Which of the following digital pins can be used in Arduino Nano/Uno to give interrupt?

A.D2
B.D6
C.D4,D5

D
What is the size of EEPROM of the Arduino UNO?

A.1 KB
B.2 KB
C.4 KB

A
Which function in the Arduino is used to start the serial communication using the COM port?

A.Serial.available()
B.Serial.begin()
C.serial.begin()

B
The action that will be performed using this switch case will be:switch (2): {case 1: digitalWrite(11,HIGH); case 2: analogRead(A3)}

A.D11 will become HIGH
B.Analog value of A3 will be read
C.D11 will become LOW

B
While taking the input from the user in Arduino, which of these function is used in Sketch?

A.Serial.print
B.Serial.println
C.Serial.available

C
What is the Tinkercad Circuits?

A.Its a just s software to create games
B.Tinkercad is a free online collection of software tools that help people create and simulation circuits.
C.Its a software for playing and create games.

B
How do you zoom in on Tinkercad?

A.Spacebar
B.Use the arrows on the keyboard
C.Use the scroll wheel

C
A photoresistor is an electronic component whose electrical resistance _______ when it is exposed to light.

A.changes
B.increases

A
What does this syntax mean? myservo.attach(9)

A.Connect the control wire 9 to GND pin
B.Connect the control wire for 9 seconds
C.Connect the control wire to 9 volts

D
In remote control terms, IR stands for what?

A.indirect radio
B.infrared
C.inside remote

B
Infrared remote controls use what to carry signals between the remote control and the device it controls?

A.radio waves
B.sound

C
Infrared signals can be used for ______.
A.(a) long-range communication
B.(b) short-range communication
C.Both (a) and (b)

B
Which sensor is LM35?

A.Pressure sensor
B.Humidity sensor
C.Temperature sensor

C
LM35 provides _______ Volt for each degree count?

A.1
B.0.01
C.0.001

B
What is the main purpose of the SRF05 sensor?

A.Water level sensor
B.Sound intensity sensor
C.Ranging sensor

C
What is the purpose of the pin named ECHO of HC-SR04 sensor?

A.Allows the ultrasonic sound wave to be sent from the sensor.
B.Provides the information that the ultrasonic sound wave is returned.
C.Allows the sensor to be fed with energy.

B
What does the AREF pin on the Arduino UNO?

A.Used to trigger a interrupt.
B.Reference voltage for analog inputs.
C.To reset the microcontroller.

B
What pins can the Arduino UNO board communicate with the computer?

A.PWM pins
B.ADC pins
C.I2C pins

D
What case is called serialEvent() interrupt?

A.Serial port shuts down.
B.When data is sent from the serial port.
C.When data comes from the serial port.

C
Each computer has its own Internet search engine.

A.True

B
What does CRM stand for?

A.Customer Research Management
B.Customer Relationship Management
C.Customized Research Management

B
How has e-commerce revolutionized business?

A.It has allowed businesses to utilize new avenues of advertising, selling, and distribution.
B.It attempts to level the playing field.
C.It transcends geographic boundaries.

D
A _____ allows customers to continue browsing after selecting each item they wish to purchase

A.Shopping Cart
B.Forms-based interface
C.SSL connection

A
Which of the following is NOT a standard used in E-Commerce?

A.EDI
B.XML
C.SETI

C
Which of the following is NOT the characteristics of consumer when studying about EC Consumer Behavior Model?

A.Age
B.Gender
C.E-mail

C
Mechanism to protect private networks from outside attack is

A.Firewall
B.Antivirus
C.Digital signature

A
While making payment using electronic check, credit and debit cards, the server authenticates the customers and verifies with the bank that funds are adequate before purchase

A.True

A
A computer communication technology that provides a way to interconnect multiple computer across short distance is

A.LAN
B.WAN
C.MAN

A
DNS is

A.The distributed hierarchical naming system
B.The vertical naming system
C.The horizontal naming system

C
Which of the following is a technology constraint from the e-commerce macro-environment?

A.Propensity for consumers to purchase online.
B.Opt-in to e-mail required to avoid SPAM
C.Likelihood of fraudulent transactions

C
In E-Commerce, HTTPS is a communication protocol that uses

A.Public key encryption
B.Secret key encryption
C.Private key encryption

A
The concept of electronic cash is to execute payment by

A.Credit Card
B.ATM Card
C.Using computers over network

C
A chemical manufacturer has transactions that are predominantly:

A.business to consumer.
B.consumer to consumer.
C.consumer to business

C
A B2B reverse auction is:

A.the same as a seller auction.
B.intended to reduce the price by increasing competition from suppliers.
C.always run through a B2B marketplace.

B
A computer system that permits multiple users to run programs at same time

A.Real time system
B.Multi programming system
C.Time sharing system

D
The mercantile process model consists of the following phase(s):

A.The pre-purchase phase
B.Purchase consummation phase
C.Post-purchase Interaction phase

D
The most serious disadvantage of e-auctions is:

A.the risk of fraud.
B.Logistics.
C.unreliable auction software.

A
Many companies use intermediaries or trading assistants instead of implementing e-auctions themselves for each of the following reasons EXCEPT:

A.The company name is not widely recognized.
B.To bring many more buyers to the auction.
C.To avoid tax and legal fees.

C
All of the following are potential benefits from auctions to sellers EXCEPT:

A.auctions can broaden the customer base and reduce cycle time.
B.sellers receive valuable price sensitivity information.
C.sellers are always anonymous.

C
Select the correct answer from the choices below which is corresponding with the following statement in STRATEGIC PLANNING TOOLS" : It is a methodology that surveys external opportunities and threats and relates them to internal strengths and weaknesses.

A.SWOT analysis
B.strategy map
C.balanced scorecard

A
A major shortcoming with authentication services is:

A.two different authenticators may come up with different opinions regarding the authenticity and description of a given item.
B.it is impossible to tell whether many items are reproductions or genuine.
C.dishonest authenticators are the primary sources of fraud on the Internet.

A
_____ work best with many buyers and many sellers.

A.Bartering
B.Dynamic exchanges
C.Forward auctions

A
The services provided through location-based m-commerce focus on key factors which include all of the following EXCEPT:

A.Geocaching, or determining the topography of an area.
B.Navigation, or plotting a route from one location to another.
C.Tracking, or monitoring the movement of a person or thing.

A
Infrastructures that "support" the wireless connection are:

A.network access points, mobile communications server switches, and cellular transmitters and receivers.
B.WAP gateways, GPS locators, and GPS satellites.
C.PDAs, smartphones, and portable computers.

A
A ______ is suitable for mobile users who need to make very short-range device-to-device wireless connections within a small space, such as a single room, and most commonly with Bluetooth.

A.personal area network
B.local area network
C.wireless area network

A
You are walking near a coffee shop and suddenly your cell phone beeps with a message: "Come inside and get a free biscotti with any purchase." This is an example of:

A.permission marketing
B.location-based advertising
C.customer relationship management

C
One way to share information with supply chain partners is wireless _________, which is the science of measuring physical phenomena such as temperature, volume, or an on/off condition at a remote point and transmitting the value to a distant recorder or observer

A.RFID
B.mobilization
C.osmosis

D
WiMax and 3G wireless mobile technologies offer telemedicine application opportunities that include all of the following EXCEPT:

A.Reduced threat of malpractice suits because there is no hands-on interaction between the remote physician and the patient.
B.Prescriptions can be transferred electronically to the appropriate pharmacy for a no-wait pick-up by the patient.
C.Real-time consultation between a patient in one location and a medical specialist in another.

A
All of the following about RFID are true EXCEPT:

A.An RFID tag can hold 20 times the amount of information a bar code can hold, and the tag can be read through cardboard, wood, and plastic at a range of up to 100 feet
B.An RFID tag includes an antenna and a chip with information about the item
C.An RFID reader contains a radio transmitter and receiver

A
Digital Signature is

A.Scanned Signature on Computer
B.Code number of the sender
C.Public Key Encryption

D
The method(s) of payment for online consumers are

A.Electronic cash
B.Credit/debit
C.Electronic checks

D
Which of the following statements are INCORRECT about company-centric marketplaces?

A.They are marketplaces which focus on a single company's purchasing needs or selling needs.
B.They are generally public entities owned by that company.
C.They support for buying needs (many to one, or buy-side).

B
As in e-commerce, m-commerce B2C applications are concentrated in each of the following areas EXCEPT:

A.retail shopping for products and services
B.telecommunications
C.targeted advertising

B
All of the following about wireless wide area networks (WWAN) are true EXCEPT:

A.The single WWAN network standard insures compatibility of handsets within and between countries.
B.Most WWANs are cellular phone networks.
C.At the center of each cell is a base station transceiver or cell tower that is used to send and receive signals to and from mobile devices operating within the cell.

A
Which of the following is an example of edutainment?

A.Two or more students sharing music over the Internet
B.An online science fiction game whose object is to blast as many aliens as possible in a 60 second round
C.A community college providing an online college course on digital media

D
Which of the following statements about blogs is not true?

A.A blog is a personal Web site, open to the public, in which the owner expresses his or her feelings or opinions.
B.Blogs became very popular after the September 11, 2001 terrorist attacks when people were looking for as many sources of information as possible and for personal connections to the tragedy.
C.Blogs are limited to one-way communication.

C
P2P systems have all of the following key characteristics EXCEPT:

A.They provide for real-time access to other users through techniques such as instant messaging and multichannel collaboration applications.
B.The users' computers can act as both clients and servers.
C.The overall system is well integrated, but lacks tools for easy creation of content or for adding functionalities.

C
More and more people are willing to pay for digital music, as shown by the success of ________.

A.Napster
B.Kazaa
C.Apple's iTunes

C
All of the following are examples of e-government EXCEPT:

A.a company sells army and navy surplus supplies at auction over the Internet.
B.a contractor submits an application for a building permit using a city hall Web site.
C.an unemployed worker consults a Web site operated by the state employment department to learn about job openings in his city.

A
A(n) _____ is a computer system capable of integrating, storing, editing, analyzing, sharing, and displaying spatial information.

A.geographical information system
B.global positioning system
C.l-commerce system

A
Which of the following statements about blogs is not true?

A.A blog is a personal Web site, open to the public, in which the owner expresses his or her feelings or opinions
B.Blogs became very popular after the September 11, 2001 terrorist attacks when people were looking for as many sources of information as possible and for personal connections to the tragedy
C.Blogs are limited to one-way communication

C
The tasks of KM include each of the following EXCEPT:

A.creating knowledge repositories where knowledge can be stored and retrieved easily
B.enhancing a knowledge environment in order to conduct more effective knowledge creation, transfer, and use
C.restricting knowledge access to prevent its transfer between individuals

C
_______ involves using various computer-based tools and techniques to analyze transaction data and generate new ideas

A.Knowledge creation
B.Knowledge capture
C.Knowledge classification

A
Most universities use e-learning:

A.exclusively in reaching students who couldn't otherwise attend classes.
B.only when forced by administrators to use it as a way to recruit distant students or reduce costs.
C.as a total replacement for traditional classrooms.

D
One initiative underway that could lead to widespread support for the introduction of RFID is the _____, which identifies the manufacturer, producer, version, and serial number of each item and does not require line-of-sight contact to be read.

A.Electronic Product Code
B.Universal Product Code
C.Smart Product Network

A
Wal-Mart and Levi Strauss collaborate on demand forecasting in order to optimize the flow of materials along the supply chain. This is an example of:

A.reducing design cycle time
B.APS (Advanced Planning and Scheduling)
C.CPFR (Collaborative Planning, Forecasting and Replenishment)

C
A major block in the widespread implementation of collaborative commerce is:

A.the theory of collaborative commerce hasn't been proven effective in real-world applications.
B.the technology needed isn't available.
C.collaborative commerce is extremely expensive.

D
What data security concerns do IoT devices pose?

A.The device being hijacked to harm another device or system
B.Because they are small and low powered, they can't carry much software including security software leaving them open to data theft or disruption

B
Which of the following IS NOT a characteristic of semiconductors?

A.They are better conductors than insulators.
B.They can be contaminated to improve their semiconductor properties.
C.They are abundantly found in nature.
D.Their semiconductor properties change as materials age.

D
Which of the following statements about sensors and actuators are true? (select 3):

A.Transducers change their physical properties in response to changes in the environment.
B.The Wheatstone Bridge converts a change in resistance into a change in voltage.
C.All sensors use instrumentation amplifiers.
D.Analogue to digital converters are needed to convert numbers produced by a computer into signals that can control actuators.

A, B, E
Which of the following sensors could be used to detect if an airplane is flying in cruise mode (horizontally), or if it is taking off or landing? (select 2):

A. A tilt sensor
B. A 3-axis accelerometer
C. A 3-axis gyroscope
D. A radar

A, C
Which of the following IS NOT criteria to help select a wired communication protocol?

A. Speed
B. Number of wires per connection
C. Ability to transmit and receive information at the same time
D. Number of devices that need connecting
E. Distance to the nearest power point

E
Which of the following statements about communication protocols are true? (select 2):

A. Multi-drop and multi-point are the same thing, but one is American and the other is European nomenclature.
B. In a multilayer network, peers in one layer can listen but cannot talk directly to the peers in other layers.
C. In master-slave networks, the master can listen to only one slave at a time.
D. In master-slave multi-drop networks, all slaves can listen to the master at the same time.

C, D
Most IoT systems utilise microcontroller units (MCUs) to collect data and transfer it to the processing units through the Internet. The advantages of using MCUs include: (select 3)

A. They are relatively simple to use, as MCUs do not require an operating system to function and are easy to interface with external components such as sensors.
B. An MCU is usually sufficient to provide processing power and functionality in most IoT systems, thus making it economically viable for IoT applications.
C. Due to their simplicity, MCUs are less vulnerable to security attacks.
D. MCUs normally run an operating system, which reduces development time.

A, B, C
If we intend to include a servo motor as an actuator, what feature should we include when selecting a microcontroller?

A. Analogue to Digital converter
B. Digital to Analogue converter
C. GPIO pins
D. Pulse Width Modulation pin

D
Which of the following should be considered when implementing a low power IoT device (or, which attributes will impact power usage on an IoT device)? (select 3)

A. Clock rate of the CPU
B. Sensor resolution
C. Number of attached sensors
D. Supply voltage

A, C, D
In an IoT smart home system, sensors are connected to the home power outlet and are required to process some part of the collected data. What would be the best option to connect sensors to each other, as well as a central location for Internet connection, where high data rate is required?

A. Bluetooth
B. 6LowPAN
C. WiFi

C
From the list below, which are the two LPWAN technologies?

A. LoRa
B. WiFi
C. LTE
D. Sigfox

A, D
Fill in the blank: System _________________ can be a major problem, especially in badly designed closed-loop systems, as they may try to over-correct any errors which could cause the system to lose control and oscillate.

A. stability
B. scalability
C. security
D. useability

A
Which terminology deals with the excitation or stimulus applied to a system from an external source, for the generation of an output?

A. Input signal
B. Output signal
C. Error signal
D. Analogue signal

A
Which of the following is an example of a closed loop system?

A. Dishwashing machine
B. Air-conditioning unit
C. Bread toaster
D. Electric hand drier

B
Which statements best describes the 'Block Diagram' representation of systems? (select 3)

A. Block diagrams are a series of interconnected black boxes that contain the details of complex components of an electronic system.
B. Block diagrams are used to reduce the complexity of electronic systems by packaging details within 'black boxes'.
C. Block diagram components may represent individual components or complete sub systems.
D. Block diagrams increase the complexity of electronic systems by packaging details within 'black boxes'.

A, B, C
One advantage of a closed loop feedback system is:

A. Simplicity of design
B. Ability to react to disturbances in the system
C. It is less stable than an open loop system
D. Depends on calibration for accuracy

B
Which six of the following statements are TRUE?

A. Things in the IoT have some intelligence and the ability to exchange information with other things.
B. Electricity is a form of thermal energy.
C. According to Ohm's Law, the higher the voltage, the smaller the resistance.
D. For a given voltage, a small resistance allows the flow of more electric current than a big resistance.
E. Capacitors and inductors store energy.
F. Diodes behave like a small resistor when they are forward biased.
G. Bipolar Junction Transistors (BJTs) are widely used in modern digital electronics because they consume a negligible amount of current during transitions.
H. Increasing the sampling rate of an ADC would increase the quality of the acquired signal.
I. A 10-bit DAC, with a reference voltage of 5 volts, cannot produce positive and negative voltages.

A, D, E, F, H, J
Which five of the following statements about the end of the line things are TRUE?

A. Open loop control systems are more complex than closed loop control systems.
B. Transducers change one of their properties in response to changes in the environment.
C. All sensors require an analogue front-end (instrumentation amplifier).
D. A microphone is a kind of actuator.
E. A light-emitting diode (LED) is a kind of actuator.
F. The living lab at Curtin University uses vibration sensors to detect and measure movement in elevated walkways.
G. All IoT things have sensors and/or actuators.
H. The Ethernet is widely used to communicate IoT things over short distances.
I. RS-232 offers the fastest throughput in wired communications over short distances.

A, B, E, F, G, J
If communication to multiple slave subsystems is required, which communication protocols would be suitable? (select 3)

A. Serial RS232
B. USB
C. SPI

B, C, D
PID is a form of control with 3 feedback methods: Proportional, Integral, and Derivative. What is the purpose of each term?

A. P corrects accumulation of errors, D instances of errors, I counteracts overshoot caused by P and D
B. I corrects accumulation of errors, D instances of errors, P counteracts overshoot caused by D and I
C. D corrects accumulation of errors, P instances of errors, I counteracts overshoot caused by D and P
D. D corrects instances of errors, P corrects accumulation of errors, I counteracts overshoot caused by D and P

E