Objective 3.3
N10-009Explain disaster recovery (DR) concepts.
Objective 3.3 sits in Network Operations, which carries 19% of the Network+ exam. The questions below are original, written from the official objective title above, and each explanation cites the CompTIA page it rests on.
Objective title verbatim from the official objectives. CompTIA exam page ↗
A worked example
Shown solved, with the whole explanation open: this is what every question here carries.
A team keeps replicated backups at a second site but nothing else. During a failover test, rebuilding servers by hand pushes recovery past the agreed window. What fixes the shortfall without adding running capacity?
Correct.
Checked against docs.aws.amazon.com, August 2026Concept
Two different clocks govern a recovery. One measures how much data is lost, and shorter backup intervals move it. The other measures how long the rebuild takes, and only removing manual steps from the rebuild moves that one.
Why C
Restoring at the recovery site means redeploying infrastructure, configuration and application code as well as data. Deploying that from code is what makes the rebuild quick and repeatable, and its absence is what stretches recovery time.
Source
AWS Whitepaper: Disaster recovery options in the cloud, checked August 2026To enable infrastructure to be redeployed quickly without errors, you should always deploy using infrastructure as code (IaC) using services such as AWS CloudFormation or the AWS Cloud Development Kit (AWS CDK). Without IaC, it may be complex to restore workloads in the recovery Region, which will lead to increased recovery times and possibly exceed your RTO.
Now you: objective 3.3 questions
No account needed. The explanation opens when you answer.
Sample question 1 of 3
Two designs both hold replicated data and a copy of the application at a second site. One can take traffic the moment it is needed, the other cannot. Which distinction separates them?
Sample question 2 of 3
A budget-constrained team wants its core databases and storage live at the recovery site while application servers stay unpowered until needed. Which strategy is that?
Sample question 3 of 3
Which recovery strategy has users served from every site it is deployed to at the same time?
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Read the sources
These are the official pages the questions above cite. Reading them is studying the objective from the primary source, which is what the explanations point you toward anyway.