A company manages IoT devices across multiple sites. Each site has a local management server. The company wants a central web dashboard that can monitor all sites. The sites have limited bandwidth and the dashboard must show real-time status. Which architecture is most appropriate?

Use a hierarchical architecture where local servers aggregate data and send summaries to the central dashboard via HTTPS.

Have each device send raw data directly to the central dashboard.

Use FTP to transfer log files from local servers to the central dashboard.

Use telnet to remotely access each local server.

A security auditor is reviewing an IoT vendor's REST API. The API accepts JSON payloads and is used by mobile apps and web dashboards. Which practice is most important to prevent unauthorized access to device data?

Validating JSON syntax on the server

Using HTTPS with token-based authentication and per-user authorization checks

Restricting API access to a specific IP address range

Requiring a valid API key in every request

A team is designing an API for a fleet of agricultural sensors. The sensors send small, frequent updates, and the API is also used by a web dashboard that needs to display complex data. The team is debating between JSON and XML. Which consideration is most important for this decision?

XML has better security features

JSON is easier for humans to read than XML

JSON is more compact and faster to parse, which is better for frequent sensor updates

XML provides better support for complex data structures

EC-CouncilIoT Security Essentials

Domain 3Objective 1

Web Communications ISE Practice Questions (Page 1)

Part of the IoT Advanced Topics domain, which makes up ~13% of our current practice bank. EC-Council does not publish an official question count, but from its 120-minute exam (~50–80 total, ~7–10 in this domain), expect 2–3 from this objective — we provide 43 practice questions to prepare you well beyond it. (estimate)

43questions here

9free pages

6concepts

Questions 1–5

1expert · hard
A company manages IoT devices across multiple sites. Each site has a local management server. The company wants a central web dashboard that can monitor all sites. The sites have limited bandwidth and the dashboard must show real-time status. Which architecture is most appropriate?
Select an answer first
2foundation · easy
Which web communication protocol is commonly used in IoT to provide full-duplex, bidirectional communication over a single TCP connection, allowing real-time data exchange between a client and server?
Select an answer first
3application · medium
A security auditor is reviewing an IoT vendor's REST API. The API accepts JSON payloads and is used by mobile apps and web dashboards. Which practice is most important to prevent unauthorized access to device data?
Select an answer first
4application · medium
A smart-lighting system exposes a REST API. An admin wants to turn off all lights in a building using a single request. Which HTTP method and endpoint design is most appropriate?
Select an answer first
5expert · hard
A team is designing an API for a fleet of agricultural sensors. The sensors send small, frequent updates, and the API is also used by a web dashboard that needs to display complex data. The team is debating between JSON and XML. Which consideration is most important for this decision?
Select an answer first

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Web Communications ISE Practice Questions (Page 1)

Questions 1–5

A company manages IoT devices across multiple sites. Each site has a local management server. The company wants a central web dashboard that can monitor all sites. The sites have limited bandwidth and the dashboard must show real-time status. Which architecture is most appropriate?

Which web communication protocol is commonly used in IoT to provide full-duplex, bidirectional communication over a single TCP connection, allowing real-time data exchange between a client and server?

A security auditor is reviewing an IoT vendor's REST API. The API accepts JSON payloads and is used by mobile apps and web dashboards. Which practice is most important to prevent unauthorized access to device data?

A smart-lighting system exposes a REST API. An admin wants to turn off all lights in a building using a single request. Which HTTP method and endpoint design is most appropriate?

A team is designing an API for a fleet of agricultural sensors. The sensors send small, frequent updates, and the API is also used by a web dashboard that needs to display complex data. The team is debating between JSON and XML. Which consideration is most important for this decision?

Keep studying — IoT Advanced Topics