Author: Enrico Aderhold

Which one of the following is the frequency band used by Bluetooth devices?

You are implementing a wireless sensor network. Multible sensors are planned for deployment. You wish to use sensor fusion to provide better analytics. What best describes sensor fusion?

To provide support for othere administrators and network managers, what should be created in every wireless solution deployment?

You have implemented a BLE location tracking solution. Several devices are not displaying on the location map. The floor plan has been imported properly and most devices are displaying as expected. All devices are compatible with BLE tracking. In this scenario, the tracked devices do not determine their own location, the central system does track the location of the tracked devices. Which one of the following is tje most likely problem?

In what vertical market are you most likely to see WBAN devices that monitor temperature or other important metrics?

When higher frequencies are used for wireless communications, what characteristic of the RF wave is always changed as compared to lower frequencies?

You are planning to implement an IoT solution that involves sensors that are managed through a cloud plattform provided by the vendor through their website. To ensure the system provides the required capabilities, you are building a test lab. In addition to the sensorsm power provisioning, and local network access, what will certainly be required of your lab?

What scripting language is represented in the following example that may be used for wireless solution automation?

if result != -1;
print ("item found")
else;
print ("Item not found")

What solution, implemented in some wireless systems, provides declarative configuration and model-driven management with vendor-neutral data models defined in YANG?

You are planning a wireless solution. The solution will use applications that are implemented as a complete solution and run on instances within the cloud. These applications will allow for monitoring of the wireless solution. What concept allows applications to be implemented as complete solutions instead of requiring each service and component required of the application to be individually configured ? 

You have implemented several wireless sensors that connect to speciality hubs, which are connected to your IP Network through standard Ethernet switches. You want to seperate the traffic from the sandard Network traffic, which traverses the same ethernet network. What can be implemented on the switches to allow for this ?

You are implementing a wireless solution. The CTO has requested that you implement a monitoring system that can detect source of interference regardless of the RF source. What feature should the monitoring solution have to provide this  capability?

What is an important consideration when installing antennas on high towers or the top of high-rise buildings that is not considered in the same way when using low wall-mounted and machine-mounted wireless devices ?

You are implementing a wireless sensor network. What best practice should be performed before connecting the sensor network to your Ethernet or IP Network ?

A device that is able to communicate on an IoT network and that may communicates with other similar devices, a centralized service, or directly with humans is referenced y what term?

What organization is responsible for managing the international spectrum of effective use and to prevent interference among countrys ?

What security solution, used within a wireless system, provides validation of device identity to the network?

You are the project manager for the new wireless solution implementation. You are currently defining the items to be included in the project. What portion of project management are you implementing?

In what general frequency range do LoRa devices operate?

Which data modeling or markup language is being used in the following example?

Building-1
192.168.121.12
light

What wireless signal metric is used to represent gains and losses in the signal strength rather than absolute power levels?

You are planning a wireless solution. In the process, you have documented twelve ways in which the new solution will be accessed and utilized by the network users. What important part of the requirements documentation have you created?

You have acquired several wireless devices that, while new, where packaged more that one year ago. What best practice should you follow before deploying these devices?

You are implementing a cloud-based wireless solution. The wireless devices are connected through your wired network to the internet and run an IP protocol stack. How do most such wireless devices locate the cloud service?

What are you measuring when you compare the amplitude of a wireless signal to the noise floor and interference at the point of reception?

You are implementing a wireless solution that requires DNS name resolution for each nodes on the network. The solution supports standard DNS queries. The devices ause IPv6. What should you create for each network node in the DNS server?

What is a common symptom of poor signal strength at a wireless receiver?

A wireless system is under test. The engineer is measuring the output power of the system with a specific antenna used for transmission. The output power is documented as the power, in watts that would be required by a half-wave dipole antenna to archive the same signal strength as the actual system under test with the specific antenna. What is being measured?

When a wireless signal bends around an obstacle to eventually fill the void that would otherwise be behind it. (through a brief area of non-coverage may exist immediately behind th obstacle), what us the primary RF behavior that is occuring?

When communication with HTTPS, what protocol is used to provide encrypted communications of higher layer data ( above the IP protocol ) during the exchange between wireless nodes?

What kind of modulation uses frequency alternations to represent transmitted information?

You are measunring the srength of an RF Signal. What characteristic of an electromagnetic wave provides this Information?

You are implementing a wireless network that includes multile devices that read information from machinery and the environment. The devices report this information back to a central cloud-based service, which is accessed using a dashboard for reporting and analysis. What specific type of wireless network are you certainly implementing?

You are implementing a wireless telemetry system in a manufactoring plant. What devices will act as sensors and be deployed in remote areas to gather information for use by the central monitoring system?

What is defined as a server-to-server communication method that is often triggered by the occurence of an event on a web server ?

In what kind of wireless sensor network device might a thermistor resistor be used ?

You have been asked to validate a wireless IoT deployment. Several dozen devices are participating in the IoT network. In the process of validation, you test the connectivity of the devices by viewing a connection list in the IoT management dashboard. You notice that four devices are not connecting and they are all in tje same area of the facility. The IoT devices connect through standard IEEE 802.11 APs. What is the first action you would take to troubleshoot this problem?

What is the specific terminology used to reference the forth industrial revolution taking place in factories involving IoT, cloud computing, artifical intelligence, and cyer-physical systems? ( Chose the single est answer)

What constraint type is imposed when an organization indicated that a wireless solution must comply with PCI-DSS?

What organization is primarily responsible for the development of mobile telephone standards such as LTE and 5G?

Where does Interference that cause signal degradation occur in wireless communications?

You are implementing a ZigBee wireless solution. What component of the ZigBee architecture provides the connection to you wired network?

You are implementing a sireless solution with an on-premises application architecture. The wireless devices coimmunicate with a web application server across the wired IP network. The application server uses two additional servers from which it consume services. All three servers communicate with a fourth server running a MySQL database. What application architecture is described?

What one of the following programming solutions does not require an interpretoer or runtime to be installed on a device to execute code in production?

You are completeing a wireless solution implementation. What is part of the knowledge transfer and hand-off that occurs during project completion?

Why can Bluetooth devices cause localized interference across a large portion of the 2.4 GHz frequency band?

What are planning capacity requirements for a wireless bridge connection between two locations within the same city. Which one of the following will have at least impact on the capacity of the connection?

What is the common term used to reference wireless receivers, transmitters, or tranceivers?

What kind of API is ased on HTTP requests and responses?

You are planning the implementation of two wireless solutions from two diffrent vendors. One is a wireless sensor network and the other is a wireless location tracing solution. what is often provided by the vendors to allow a programmer to coontrol monitor and manage both wireless solutions from a single custom-developed application?

Which one of the following wireless solutions operates in the 2.4 GHz frequency band and uses 2 MHz channel widths?

You are planning a wireless location services deployment. Part of the project requirements mandate the use of geofencing, What best describes geofencing?

What protocol is best defined as a publish/subscribe protocol and is often used with low power sensors?

Which one of the following in NOT a valid request form for RESTful APIs?

You are troubleshooting a wireless solution based on ZigBee, Occasionaly, a ZigBee coordinator loses connection with the other ZigBee devices, but  when it connected it works at the expected speeds for several hours, It has been verified that no other significant wireless systems operate in the samen frequency band in the coverage area at any time. Additionaly, no incidental RF energy has been detected in the area. What is the most likely Problem?

When implementing a WMAN, which one of the following best descries an area that would be covered by the network?

Which one of the following is most likely to be included in a Smart Agro wireless solutions project?

You have been asked to implement a wireless solution that allows for the use of IoT devices thaz sense the temperature in the immediate area. The solution cannot use the heavily utilized 2.4 GHz frequency band. It must provide connectivity throughout the 1200 square meter warehouse. Which one of the following would be an acceptable solution ?

What is another acronym used for a Body Sensor Network (BSN) or Medical Body Area Network (MBAN)?

You wish to implement a solution that allows your IoT devices to be upgraded across the wireless link. What is the term used for this solution?