30 Questions
In which standard is NB-IoT introduced?
LTE-Advanced Pro
What is the main role of a 'Central' device in BLE networks?
Performs device discovery and connection establishment
How many subcarriers can be supported with a 1000kHz bandwidth for 4G cellular operation?
975
What is included in the beacon to notify stations about buffered frames?
Traffic Indication Map
Which version of Bluetooth introduced BLE technology?
Bluetooth 4.0
Which parameter is used to decide the modulation and coding scheme?
Signal to Noise Ratio
What distinguishes BLE from Classic Bluetooth?
Lower energy consumption
What is a characteristic specific to BLE 'Advertising' mode?
Device discovery and connection establishment
What frames are transmitted by the Access Point during a node's attempt to join a Basic Service Set using active scanning?
Both A and B
How many overlapping WiFi channels are available in the 2.4GHz Band?
11
Which statement is true about Zigbee routers in a Zigbee network?
Connect multiple nodes and act as relays
Which of the following is not a feature of Zigbee technology?
'Large Bandwidth'
What does the term 'link budget' refer to in the context of LoRa technology?
The amount of loss that can be tolerated in the data link to ensure proper operation
Which of the following aspects does the spreading factor in LoRa technology affect?
Data rate and range
At which OSI layer does the LoRaWAN modulation technique operate?
Data link layer
What does the acronym 'REST' stand for in the context of web services?
Representational State Transfer
In RESTful APIs, what is used to uniquely identify a resource?
URI (Uniform Resource Identifier)
Which HTTP method should be used to update an existing resource in a RESTful web service?
PUT
Which statement is correct regarding NB-IoT devices' suitability for indoor placement?
Statement B
In the context of NB-IoT, why is it essential for devices to connect to an operator network?
To ensure secure data transmission
What distinguishes NB-IoT devices from normal LTE devices regarding paging?
NB-IoT devices need not listen to paging regularly
Is it true that any mobile connected to a 4G network can move while retaining an active connection?
Yes, as long as it stays within the coverage area
In the context of link budget and receiver sensitivity, what is the minimum transmit power required for NB-IoT with a link budget of 170dB and receiver sensitivity of -150dBm?
-20 dBm
Regarding the spectrum in which NB-IoT devices transmit information, which statement is correct?
The spectrum is irrelevant if the eNodeB is unaware
In a LoRaWAN network, what is the primary function of the network server?
Processing and forwarding data to application servers
What is the effect of increasing the spreading factor (SF) in LoRa modulation?
Increases range and decreases data rate
Which LoRaWAN class is designed for bidirectional end devices with scheduled receive slots?
Class B
What is the primary advantage of using LoRa for IoT applications?
Low power consumption and long range
Which OSI layer does the LoRa modulation technique operate at?
Physical layer
What is the main drawback of using LoRa for IoT applications?
Limited data rate
Test your knowledge on NB-IoT devices and their suitability for indoor placement. Determine the accuracy of statements related to NB-IoT coverage and reliance on LTE and 5G-NR technologies.
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