Font size
WorksheetsWCM Chapter 6 - WPAN ZB
Total questions: 47
Worksheet time: 24mins
What is the maximum transmission distance for ‘ZigBee’ devices in a line-of-sight environment?
100-500 meters
1-2 kilometers
10-100 meters
500-1000 meters
How can ‘ZigBee’ devices transmit data over long distances?
By using higher power output
By using external antennas
By passing data through a mesh network of intermediate devices
By using satellite communication
Which of the following applications is best suited for ‘ZigBee’ technology?
Streaming high-definition videos
Gaming
Intermittent data transmissions from a sensor or input device
Web browsing
What is the typical data rate for ‘ZigBee’ technology?
1 Gbps
100 Mbps
10 Mbps
250 kbps
What is the primary advantage of using ‘ZigBee’ technology?
High data transfer rate
Low power consumption
Long transmission distance
Secure networking
Which of the following is an example of an application that can benefit from ‘ZigBee’ technology?
Online shopping
Social media
Smart energy applications
Online gaming
What is the maximum transmission distance for ‘ZigBee’ devices under line-of-sight conditions?
10 meters
100 meters
1000 meters
10000 meters
How do ‘ZigBee’ devices transmit data over long distances?
They increase their power output
They use intermediate devices to form a mesh network
They use satellites to relay data
They use fiber optic cables
What type of applications is ‘ZigBee’ typically used for?
High data rate applications
Applications that do not require secure networking
Applications that require short battery life
Low data rate applications that require secure networking
What is the best use case for ‘ZigBee’ technology?
Continuous data transmission from a camera
Intermittent data transmission from a sensor
High speed data transmission from a server
Streaming of audio and video data
What is the main advantage of ‘ZigBee’ technology?
High power output
Long transmission distance
Low power consumption
High data rate
Which of the following industries would benefit from using ‘ZigBee’ technology?
Mining
Automotive
Home automation
Aviation
What is ZigBee technology?
A high-level communication protocol used to create Wireless Personal Area Networks (WPAN) with small and low-power digital radios.
A high-level communication protocol used to create Wireless Local Area Networks (WLAN) with large and high-power digital radios.
A high-level communication protocol used to create Wired Personal Area Networks (WPAN) with small and low-power digital cables.
A high-level communication protocol used to create Wired Local Area Networks (WLAN) with large and high-power digital cables.
When was ZigBee standardized?
1998
2003
2006
2010
How does ZigBee compare to other WPANs like Bluetooth and Wi-Fi?
It is more complex and expensive.
It is simpler and less expensive.
It has the same complexity and cost as Bluetooth.
It has the same complexity and cost as Wi-Fi.
What is XBee?
A radio module that supports a variety of communication protocols, including ZigBee.
A wireless protocol that only supports 2450MHz frequency band.
A wired protocol that only supports 868/915MHz frequency band.
A radio module that supports a variety of communication protocols, except ZigBee.
Which frequency bands do XBee radio modules operate in?
433/868MHz
915/2450MHz
433/2450MHz
868/915MHz
Which of the following statements is true about ZigBee communication protocol?
It is a high-power wireless mesh networking protocol.
Any device that supports ZigBee can only communicate with devices from the same manufacturer.
ZigBee protocol stack includes only the Physical (PHY) Layer and Network Layer.
The ZigBee Alliance specifies the Network and Application layers.
What does the IEEE 802.15.4 standard define in ZigBee protocol stack?
The Network Layer and Application Layer specifications.
The Physical (PHY) Layer and Medium Access Control (MAC) Layer specifications.
The Application Layer and routing specifications.
The Mesh Network Creation and Self-Healing Mesh specifications.
What is the purpose of the ZigBee protocol stack's Network Layer?
To specify power management
To create an entire network of radios on the fly.
To specify error correction.
To specify message formats.
Which of the following statements is true about the ZigBee Alliance?
It is a profit-driven industry association promoting the growth of a global, closed standard for wireless control of devices.
It specifies the Physical (PHY) and Medium Access Control (MAC) layers.
It only promotes the growth of wireless control of industrial environments.
It is a non-profit industry association promoting the growth of a global, open standard for wireless control of devices.
Which of the following is NOT a function of ZigBee protocol stack?
Ad Hoc Network Creation.
Self-Healing Mesh.
Power management.
Addressing.
Which of the following defines the message formats and other point-to-point specifics for radio to radio communication in ZigBee protocol?
The Network Layer.
The Application Layer.
The Physical (PHY) Layer.
The Medium Access Control (MAC) Layer.
What does the ZigBee protocol do on top of IEEE 802.15.4?
Power management
Ad hoc network creation
Routing
All of the mention
What is the purpose of the Routing layer in ZigBee communication protocol?
To create an ad hoc network of radios on the fly.
To define how one radio passes messages through a series of other radios to the final destination.
To automatically repair any broken routes.
To define power management, addressing, and error correction.
What is the purpose of the Self-Healing Mesh layer in ZigBee communication protocol?
To create an ad hoc network of radios on the fly.
To define how one radio passes messages through a series of other radios to the final destination.
To automatically repair any broken routes.
To define power management, addressing, and error correction.
Which of the following devices is responsible for forming a ZigBee network, handing out addresses, and managing other functions that define the network and securing it?
End Device
Router
Coordinator
Parent Device
What is the function of a ZigBee router?
Joining existing networks
Sending information
Receiving information
All of the mention
What is the difference between an End Device and a Router in a ZigBee network?
An End Device can go into a nonresponsive sleep mode, while a Router cannot
A Router is responsible for forming the network, while an End Device is not
An end device is responsible for supporting the child device while router is not
None of the mention
What is the minimum number of devices a ZigBee network will have?
1
2
3
4
Which type of device needs a Router or Coordinator to be their Parent device?
Router
Coordinator
End Device
Parent Device
Which of the following devices acts as a messenger for communications between other devices that are too far apart in a ZigBee network?
End Device
Router
Coordinator
Parent Device
Coordinator devices does not have which features?
Routing Data
Sleep mode
Main Power (AC)
Support child device
Select the features that are not available in router device.
'Channel' and 'pan ID' selection
Sleep mode
Routing Data
Support child device.
What is the simplest network topology?
Mesh
Star
Pair
Non of the mention
What is the function of a 'Coordinator' radio in a star topology network?
Pass messages between routers and end devices
Manage the network and route messages
Communicate directly with end devices
None of the mention
Which of the following topologies employs 'Router' nodes in addition to a 'Coordinator' radio?
Pair
Star
Mesh
None of the mention
In a mesh topology network, which device can help an end device to communicate with other nodes?
Coordinator
Router
End device's parent
All of the mention
What is the structure of a star topology network?
Every device is connected to every other device
Devices are connected in a circular manner
End devices communicate with each other directly
A 'Coordinator' radio sits at the center and connects to a circle of 'End' devices
What is the function of a 'Router' node in a mesh topology network?
Pass messages between routers and end devices
Manage the network and route messages
Communicate directly with end devices
None of the mention
Which of the following is true about ZigBee addressing?
Each radio has a dynamic 64-bit serial number.
Each network is identified by a 32-bit PAN ID.
The maximum number of radios a PAN ID can handle is 2^16.
Every ZigBee radio in a network can use a different channel.
Which of the following is true about a ZigBee network?
The network address is unique everywhere.
Each radio has a unique 32-bit address.
All radios in the network must use the same channel.
The PAN ID can generate 2^32 different radio addresses.
What is the purpose of a PAN ID in ZigBee addressing?
To uniquely identify every radio in a network.
To allow radios in different networks to communicate.
To assign 16-bit network addresses to each radio.
To identify a particular ZigBee chip on a radio.
How many different radio channels are typically available in ZigBee?
4
8
12
20
What is the maximum number of radios a ZigBee network can handle?
256
1024
2^16
2^32
Which of the following is required for radio communication in IoT networks?
Same PAN identity and different radio channel
Different PAN identity and same radio channel
Same PAN identity and same radio channel
Different PAN identity and different radio channel
What is required for communication in IoT networks that have security protocols?
Exchange of PAN identity
Exchange of radio channel
Exchange of security keys
Exchange of network address
