A startup has a limited budget and expects their IoT device count to grow from 1,000 to 100,000 over the next year. They need to store sensor data for compliance for 7 years, but only need immediate access to the last 30 days. Which storage strategy minimizes cost while meeting requirements?

Store all data in a high-performance time-series database for 7 years

Store all data in object storage and query it directly for real-time analytics

Store recent data in a fast time-series database and archive older data to low-cost object storage

Delete data older than 30 days to save costs

What is a common best practice for controlling access to IoT cloud resources?

Keeping default passwords on devices

Implementing role-based access control (RBAC)

Granting all users administrative privileges

Using shared credentials for all devices

EC-CouncilIoT Security Essentials

Domain 2Objective 3

Cloud Computing and IoT Integration ISE Practice Questions (Page 10)

Part of the IoT Hardware and Platforms domain, which makes up ~18% of our current practice bank. EC-Council does not publish an official question count, but from its 120-minute exam (~50–80 total, ~9–14 in this domain), expect 2–4 from this objective — we provide 52 practice questions to prepare you well beyond it. (estimate)

52questions here

11free pages

10concepts

Questions 46–50

46expert · hard
A startup has a limited budget and expects their IoT device count to grow from 1,000 to 100,000 over the next year. They need to store sensor data for compliance for 7 years, but only need immediate access to the last 30 days. Which storage strategy minimizes cost while meeting requirements?
Select an answer first
47foundation · easy
Which IoT communication protocol is a lightweight, publish-subscribe messaging protocol designed for constrained devices and low-bandwidth networks?
Select an answer first
48foundation · easy
Which cloud storage option is most suitable for storing large volumes of unstructured IoT data, such as images or video files from cameras?
Select an answer first
49application · medium
A small startup wants to build an IoT application without managing servers. They need to focus on writing code for device data processing and analytics. They expect variable traffic and want to pay only for what they use. Which cloud service model is most appropriate?
Select an answer first
50foundation · easy
What is a common best practice for controlling access to IoT cloud resources?
Select an answer first

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Cloud Computing and IoT Integration ISE Practice Questions (Page 10)

Questions 46–50

A startup has a limited budget and expects their IoT device count to grow from 1,000 to 100,000 over the next year. They need to store sensor data for compliance for 7 years, but only need immediate access to the last 30 days. Which storage strategy minimizes cost while meeting requirements?

Which IoT communication protocol is a lightweight, publish-subscribe messaging protocol designed for constrained devices and low-bandwidth networks?

Which cloud storage option is most suitable for storing large volumes of unstructured IoT data, such as images or video files from cameras?

A small startup wants to build an IoT application without managing servers. They need to focus on writing code for device data processing and analytics. They expect variable traffic and want to pay only for what they use. Which cloud service model is most appropriate?

What is a common best practice for controlling access to IoT cloud resources?

Keep studying — IoT Hardware and Platforms