SAP-C02 Continuous Improvement for Existing Solutions Practice Question
Which TWO AWS services can be used to monitor and troubleshoot network connectivity issues between EC2 instances? (Choose two.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
VPC Reachability Analyzer.
Options D and E are correct. D: VPC Reachability Analyzer helps diagnose network connectivity issues by checking network paths between resources. E: VPC Flow Logs capture IP traffic information for analysis. A is incorrect because Amazon Inspector is a vulnerability assessment tool, not for network connectivity monitoring. B is incorrect because AWS CloudTrail records API activity, not network traffic. C is incorrect because AWS Config tracks resource configuration changes, not real-time connectivity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon Inspector.
Why it's wrong here
Security vulnerability assessment.
- ✗
AWS CloudTrail.
Why it's wrong here
Records API activity, not network traffic.
- ✗
AWS Config.
Why it's wrong here
Monitors resource configuration changes.
- ✓
VPC Reachability Analyzer.
Why this is correct
Tests network paths between resources.
- ✓
VPC Flow Logs.
Why this is correct
Captures network traffic metadata.
Go deeper
Related to this question
About these practice questions
This SAP-C02 question is part of Courseiva's 1,660-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
Same concept, more angles
2 more ways this is tested on SAP-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Drag and drop the steps to troubleshoot an EC2 instance that is unreachable via SSH in the correct order.
medium- ✓ A.Check security groups, then network ACLs, then public IP, then system status, then console output.
- B.Check network ACLs, then security groups, then public IP, then system status, then console output.
- C.Check public IP, then security groups, then network ACLs, then console output, then system status.
- D.Check system status, then console output, then security groups, then network ACLs, then public IP.
Why A: Start with security groups, then network ACLs, then public IP, then system status, and finally console output.
Variation 2. A DevOps engineer notices that an EC2 instance is running but is not reachable via SSH. The instance was launched with a security group that allows SSH from anywhere (0.0.0.0/0). What is the most likely cause?
easy- A.The instance does not have a public IP address.
- B.The instance is failing system status checks.
- C.The security group is not attached to the instance.
- ✓ D.The subnet's network ACL is blocking inbound SSH traffic.
Why D: The most likely cause is that the subnet's network ACL is blocking inbound SSH traffic. While the security group allows SSH from anywhere (0.0.0.0/0), network ACLs operate at the subnet level and can override security group rules. If the network ACL denies inbound traffic on port 22, SSH connections will be blocked. Option A is less likely because even without a public IP, the instance could be reached via private IP from within the VPC; the scenario implies external SSH access. Option B is incorrect because system status checks indicate underlying hardware issues, not connectivity problems. Option C is incorrect because the security group is attached by default when launching an instance, and the question confirms it allows SSH.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SAP-C02 exam.