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WorksheetsIoT: база емес, для себя чисто
Total questions: 81
Worksheet time: 44mins
What are three machine-intelligible message structures that group strings of bits for network transmission? (Choose three.)
ASCII codes
frames
pixels
packets
segments
What file extension is used when saving sketches written with the Arduino IDE?
.txt
exe
.ino
.doc
What is a feature of microcontrollers that makes them well-suited for use in the Internet of things?
large data storage capacity
low power requirements
multiple processor cores
large form factor
What type of electrical circuit stops working when a single electronic component is damaged or removed?
nonlinear
parallel
series
linear
What type of device is able to create physical movement?
actuator
sensor
diode
resistor
What is used to limit the amount of current that flows through the circuit?
inductor
resistor
capacitor
LED
What software package is commonly used to create programs for the Arduino?
Arduino IDE
Packet Tracer
SparkFun
RedBoard
What elements are used to represent different programming structures in Blockly?
flowcharts
colored blocks
programming code pieces
colored lines and symbols
What is the benefit of deploying a group of headless Pi IoT devices?
Each Pi IoT device is managed remotely on a network.
A single monitor can be connected to the group of Pi IoT devices.
The Pi IoT devices can connect to each other using Zigbee.
The group of Pi IoT devices must be controlled by a single Pi device in the cloud.
What are two features related to Linux? (Choose two.)
open source
an application for word processing
an example of interpreted language
a code base managed by one organization
support by a community of programmers
Which Python command is an example of conditional logic?
def
delay
if
from
Which statement describes Blockly?
It is a compiled language.
It is a specific Linux distribution.
It is graphic editing software for web design.
It is a JavaScript based library for implementing visual programming.
Which Linux distribution is used to develop the Raspbian operating system for the Raspberry Pi?
Mint
Ubuntu
Debian
Red Hat
What is a method to secure the control plane of an IoT device?
the encryption of user data
enforcement of authorized access to code
restricting access to servers
verification of data integrity
What is a Raspberry Pi?
a small, low cost, single-board computer
a Python function for conditional logic
an object-oriented programming language
a cloud-based service for teaching IoT
Which three items can serve as inputs to a microcontroller unit such as an Arduino? (Choose three.)
a sensor
an LED
a pushbutton
a Twitter message
an actuator
How are electronic sensors used in digitizing the natural world?
They measure a physical event and translate it into electrical signals.
They measure voltage as a function of time and output a graph.
They convert digital events into analog representations.
They measure electrical signals sent from a specific computer port.
Which tool measures the ratio of voltage to current across an object?
multimeter
clamp meter
oscilloscope
wattmeter
What type of circuit provides multiple paths for current flow so that the failure of a single component will not affect the operation of the entire circuit?
series
parallel
linear
nonlinear
What functions do sensors perform in the digitized world?
creating physical movement
detecting events in the physical environment
performing physical actions
reducing current flow through a circuit
What type of component is represented if it appeared on an electronic schematic?
inductor
resistor
capacitor
LED
What is direct current?
the type of current that is supplied to the home by power utilities
the type of electric current in which the current flow periodically reverses direction
the type of current that is produced by batteries, computer power supplies, and solar cells
the type of current that is represented by a sine wave
What is another term for an electrically controlled mechanical switch?
microcontroller
actuator
sensor
relay
Which action is the result of negative feedback?
A flashlight is used at night by a camper.
A strong feedback noise is heard in an auditorium during a rehearsal.
An unexpected chemical reaction in a chemical plant causes an explosion.
A thermostat shuts down an air conditioning unit when the temperature reaches the set temperature.
What are two advantages of using fiber optic cables compared with copper cables? (Choose two.)
They are less expensive.
They support higher bandwidth.
They provide connections over longer distances.
They use electromagnetic signals to transmit data.
They provide shared media access for a single link.
The purpose of the Cisco IoT System is to create complexity in IoT system implementation and management.
true
false
What are three types of connections in an IoT system? (Choose three.)
connection to power sources
application protocols designed for IoT
exclusive networking for IoT systems
OSI Layer 2 and Layer 3 networking connections
wires and circuitry associated with linking IoT components
Which level of the Internet of Things reference model describes data storage?
data abstraction
edge computing
data accumulation
physical devices and controllers
What are three alternative methods of powering IoT systems deployed in remote locations? (Choose three.)
solar
PoE
vibration
temperature differences
AC line power
Which type of IoT device operates in the device-to-network-to-cloud communication model?
Bluetooth heart-rate sensor
IP camera
smart watch
Zigbee gas sensor
What is embedded within a digital object, such as a photograph or email?
sensor
microcontroller
feedback
metadata
What is the term for the extension of the existing Internet structure to billions of connected devices?
SCADA
digitization
IoT
M2M
What are three components of a control system? (Choose three.)
sensor
plant
thermostat
wearable device
controller
Which type of media would use electromagnetic signals to communicate between IoT devices?
wireless
single-mode fiber
copper
multimode fiber
What are two benefits of using a layered model for network protocol development? (Choose two.)
promoting
reducing competition among different manufacturers
enhancing capabilities of networking products and services
providing a common language to describe networking functions
preventing technology changes in one layer from affecting other layers
90. Which Cisco IoT pillar would include industrial routers, industrial switches, industrial wireless devices, and embedded networks?
fog computing
cyber and physical security
network connectivity
management and automation
What type of IoT device is the Raspberry Pi?
router
sensor
actuator
controller
88. How does the Smart Grid system benefit the environment?
It decreases traffic in cities and helps eliminate air pollution from cars.
It enables the more efficient use of home energy resources by enabling homeowners to control the consumption of energy by heating and cooling systems, lighting, and appliances.
It enables excess energy that is generated at homes and other sources to be distributed along with the power generated by utility companies.
It limits the amount of power that is available to consumers through enhanced monitoring and control by utility companies.
89. What is the most common application of the Industrial Internet?
data collection
healthcare device connectivity
predictive maintenance
smart grid
What is an example of a closed-loop control system?
a manual garage door opener
a clock
a traditional dishwasher
a thermostat
What are two factors that impact network security in the IoT? (Choose two.)
the number of devices
the number of bits used for encryption
the nontraditional location of devices
the lack of Internet standards
the amount of space between sensors
Which tool has the ability to measure the signals that travel from sensors to microcontrollers as a function of time?
multimeter
clamp meter
oscilloscope
wattmeter
86. A company plans to develop IoT solutions for both horizontal and vertical markets. What is the major difference in designing solutions for different industries?
Control software for a horizontal market industry should be coded with C, whereas control software for a vertical market industry should be coded with Python.
Solutions for a horizontal market industry will deal with many general network devices, whereas solutions for a vertical market industry will deal with only specialized equipment.
Solutions for a horizontal market industry should be usable for a longer time, whereas solutions for a vertical market industry would have a short limited time usage.
Solutions for a horizontal market industry should meet general needs across the industry, whereas solutions for a vertical market industry should meet specialized needs for the industry.
What type of component has no effect on gain or control over voltage or current?
linear
nonlinear
passive
active
85. What are two characteristics of the Cisco Connected Factory Solution? (Choose two.)
secure manufacturing standards
network security
operational efficiency and productivity
low power requirements
complex management tools
84. What are three new challenges associated with the rapid growth of the IoT? (Choose three.)
increasing the CPU power of computers
integrating new things into existing networks
improving the Internet connections from homes
securing new devices with varying level of security
integrating many devices from different vendors with custom applications
87. Which statement describes the term Industrial Internet?
the platform that allows cloud-based application development
Internet infrastructure components
software and hardware that extends IoT applications to the network edge
the integration of complex physical machinery with networked sensors and software
83. Which group of organizations is an example of vertical industries suitable for a common technology solution?
restaurants, car dealers, power plants
pharmaceutical companies, hospitals, lab facilities
car manufacturers, universities, insurance companies
tool manufacturers, food process plants, book publishers
81. What is an example of M2M communication in a home with the IoT connection?
A home owner views the home monitoring system while traveling out of town.
A smart refrigerator sends a message to a grocery store for the delivery of milk.
A customer receives a message from an online store that the product ordered is shipped.
A webcam detects movement and notifies a home owner that someone has entered the home.
82. Which pillar of the Cisco IoT System allows data to be analyzed and managed at the location where it is generated?
data analytics
fog computing
network connectivity
application enhancement platform
79. What trend is a major motivation for the development of Smart+Connected Cities systems?
Excess energy is wasted because of poor power distribution.
More people are moving into cities.
Healthcare costs continue to rise.
Greenhouse gases are causing global warming.
Cities need to connect with one another to share problems and solutions.
77. Which Cisco smart grid solution works with utilities to plan and design reliable and highly secure network architectures?
Grid Operations
Field Area Network
GridBlocks Architecture
Connected Grid Services
Transmission and Substation
78. What are three of the six core components in the Cisco IoT system? (Choose three.)
fog computing
wearable technologies
data analytics
robot guides
cyber and physical security
76. Which Cisco healthcare provider management solution enables experts to plan, build, and manage a network that meets clinical, business, and compliance needs?
Cisco Medical-Grade Network
Digital Media Suite for healthcare
Cisco Services for Connected Health
Cisco Healthcare Intelligent Contact Center
75. Which cybersecurity solution would help with IoT physical security?
firewall
secure switches and routers
video surveillance
data plane security
73. Which Cisco IoT manufacturing solution addresses protection against risks, improves efficiency, and reduces factory site downtime?
Cisco Secure Ops
Cisco Connected Factory
Cisco Connected Machines
Cisco Connected Supply Chain
72. Which solution of Cisco Smart+Connected Communities provides a standards-based system to help reduce city energy consumption and improve citizen vehicle compliance?
Smart+Connected Wi-Fi
Smart+Connected Lighting
Smart+Connected Operations Center
Smart+Connected Parking and Traffic
71. Which type of payment model is typically used to purchase cloud services?
annual subscription fee
lump-sum payment in advance
pay-as-you-go system
calculation based on bandwidth
70. Which wireless technology can be used to provide a metropolitan area with up to 100 Mbps of bandwidth?
Bluetooth
5G
LoRaWAN
ZigBee
69. What is the role of routing on data networks?
to determine the best paths for packets through the network
to provide a physical channel for packets to travel through the network
to ensure availability of services and resources on the network
to provide an architecture for data exchange
67. Which cloud service provides an app development platform and a backend service for apps?
Built. io
Zapier
IFTTT
ZigBee
68. Which wireless technology has low-power and data rate requirements making it popular in home automation applications?
LoRaWAN
5G
Wi-Fi
ZigBee
65.What are three characteristics that distinguish big data from data? (Choose three.)
amount of data being transported and stored
rate at which data is generated
type of data that is generated
where the data is stored
how the data is collected
64. What measure should be taken to secure IoT devices?
install self-encrypting hard drives
disconnect from the Internet
keep firmware updated
implement the security through obscurity model
66. What are two protocols developed by the Wi-Fi Alliance to secure wireless networks? (Choose two.)
WPA
802.1x
WPA2
LoRaWAN
IPsec
63. What are rules governing communication between network devices?
processes
protocols
services
architectures
62. Which statement is an accurate description of 4G and 5G wireless technologies?
Both 4G and 5G technologies use a low-energy, low-power, low-data rate for wireless personal-area networks.
They require a wireless WAN connection to power constricted devices.
They are both cellular-based technologies for covering large geographic areas.
They both require a 2.4 GHz short-range radio frequency band for industrial, scientific, and medical applications.
61. Which pillar of the Cisco IoT System allows data to be analyzed and managed at the location where it is generated?
data analytics
fog computing
network connectivity
application enhancement platform
59 What is data in motion?
value extracted from data while it is being generated
data stored in mobile devices
data generated by an IoT device that is moving
data transferred from an IoT device to the cloud
58. What is the goal of fog computing?
to store all data on a single server for processing
to send data immediately to the cloud for secure storage
to analyze data as close to the source as possible
to permanently store data on the local device
56. Which Linux shell command can be used to search a specific string of characters within a file?
cat
man
pwd
grep
74. Which component of the Cisco Smart+Connected Wi-Fi solution provides location-based services to help city planners acquire near real-time data?
city services
city commerce
citizen services
business services
55. To answer the question, you do not need the graphic. Why is it common to connect an Arduino board with a single board computer like the Raspberry Pi?
The Arduino is a full computer and the Raspberry Pi is not.
The Raspberry Pi cannot process incoming digital signals.
The Arduino has analog pins.
The Raspberry Pi does not require software to interact with an Arduino.
54. What is needed for a computer program to communicate with another computer program made from a different vendor?
API
firmware
device driver
operating system
53. What is an advantage of an executable program coded with an interpreted language compared with a compiled language?
It runs faster.
It stores as binary format.
It is easier to maintain and troubleshoot.
It does not rely on another program in order to execute.
52. True or False?
Programmers only work on desktop applications.
true
false
51. A user is using Blockly to program a process to find the next 100 prime numbers after 2. Which block is best used for the task?
FOR block
WHILE block
PRIME block
IF-THEN block
50. Which Python function is used for console output?
return
for
from
49. Which language is an example of a compiled programming language?
Python
PHP
Javascript
C
48. A system administrator issues the command ps on a server that is running the Linux operating system. What is the purpose of this command?
to process a new task
to change file permissions
to display the contents of the current directory
to list the processes currently running in the system
47. What tool can be used on a Linux device to compare all installed software against a repository index, to download updates, and to install them automatically?
Blockly
improved C Shell (tcsh)
Arduino
package manager system
