ANS-C01 Network Management and Operations Practice Question
This ANS-C01 practice question tests your understanding of network management and operations. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company uses AWS Direct Connect with a private virtual interface (VIF) to connect its data center to a VPC. The network team needs to ensure high availability and failover in case the primary connection fails. Which solution provides the most cost-effective high availability?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Use a VPN connection over the internet as a backup
Why wrong: Less reliable and higher latency but could be cheaper; however, the question asks for most cost-effective high availability, and two Direct Connects are more reliable.
B
Provision a second Direct Connect connection at a different AWS Direct Connect location and configure BGP with AS_PATH prepending
Provides diverse path and failover.
C
Use a VPN connection over the same Direct Connect connection as backup
Why wrong: Still relies on the same connection.
D
Provision a second private virtual interface on the same Direct Connect connection
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Provision a second Direct Connect connection at a different AWS Direct Connect location and configure BGP with AS_PATH prepending
Option C is correct because using a second Direct Connect connection to a different AWS Direct Connect location provides geographic redundancy. Option A is wrong because it's a single point of failure. Option B is wrong because VPN over the same Direct Connect relies on the same physical connection. Option D is wrong because adding a VPN over the internet provides a backup but is not as reliable as a second Direct Connect.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Use a VPN connection over the internet as a backup
Why it's wrong here
Less reliable and higher latency but could be cheaper; however, the question asks for most cost-effective high availability, and two Direct Connects are more reliable.
✓
Provision a second Direct Connect connection at a different AWS Direct Connect location and configure BGP with AS_PATH prepending
Why this is correct
Provides diverse path and failover.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Use a VPN connection over the same Direct Connect connection as backup
Why it's wrong here
Still relies on the same connection.
✗
Provision a second private virtual interface on the same Direct Connect connection
Why it's wrong here
Single point of failure.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related ANS-C01 NAT questions on configuration and troubleshooting.
Network Management and Operations — This question tests Network Management and Operations — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Provision a second Direct Connect connection at a different AWS Direct Connect location and configure BGP with AS_PATH prepending — Option C is correct because using a second Direct Connect connection to a different AWS Direct Connect location provides geographic redundancy. Option A is wrong because it's a single point of failure. Option B is wrong because VPN over the same Direct Connect relies on the same physical connection. Option D is wrong because adding a VPN over the internet provides a backup but is not as reliable as a second Direct Connect.
What should I do if I get this ANS-C01 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related ANS-C01 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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