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Question 51/52
You have successfully enabled DNSSEC on your OCI DNS zone and provided the DS record to your domain registrar. However, when you test your DNS configuration using online DNSSEC validation tools, you are still seeing errors indicating that DNSSEC validation is failing. What is the most likely reason for this failure?
Correct Answer: B
* Problem:DNSSEC validation fails post-setup.
* DNSSEC Chain:Requires DS record in parent zone for trust.
* Evaluate Causes:
* A:Low TTL affects caching, not validation; unlikely.
* B:Missing DS in parent zone breaks chain; most likely.
* C:Resolver config is client-side, not affecting external tools; incorrect.
* D:OCI uses standard algorithms; highly unlikely.
* Conclusion:Registrar delay in publishing DS is the primary cause.
DNSSEC relies on the parent zone. The Oracle Networking Professional study guide explains, "DNSSEC validation fails if the registrar hasn't published the DS record in the parent zone, as this breaks the chain of trust" (OCI Networking Documentation, Section: DNSSEC Troubleshooting). This is a common post- enablement issue.
* DNSSEC Chain:Requires DS record in parent zone for trust.
* Evaluate Causes:
* A:Low TTL affects caching, not validation; unlikely.
* B:Missing DS in parent zone breaks chain; most likely.
* C:Resolver config is client-side, not affecting external tools; incorrect.
* D:OCI uses standard algorithms; highly unlikely.
* Conclusion:Registrar delay in publishing DS is the primary cause.
DNSSEC relies on the parent zone. The Oracle Networking Professional study guide explains, "DNSSEC validation fails if the registrar hasn't published the DS record in the parent zone, as this breaks the chain of trust" (OCI Networking Documentation, Section: DNSSEC Troubleshooting). This is a common post- enablement issue.
- Question List (52q)
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- Question 18: You are designing a hybrid cloud architecture connecting you...
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- Question 20: Which OCI resource is used to establish private connectivity...
- Question 21: Which aspect of OCI's security framework is essential for co...
- Question 22: A company wants to leverage a best-of-breed approach for the...
- Question 23: Which of the following is a disadvantage of using a public i...
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- Question 25: You are designing an OCI networking architecture for a multi...
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- Question 27: Your application running on OCI Compute instances in a priva...
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- Question 30: You are designing a backup solution in OCI. Compute instance...
- Question 31: You are troubleshooting an issue where legitimate users are ...
- Question 32: You are a Cloud Architect troubleshooting connectivity issue...
- Question 33: You have configured DNSSEC for your domain hosted on OCI DNS...
- Question 34: You are working as an OCI Network Specialist. Your company i...
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- Question 40: Your company has established a hybrid cloud environment usin...
- Question 41: In a Zero Trust network architecture, what is the primary pu...
- Question 42: You are designing a highly available application that requir...
- Question 43: You are automating the deployment of a highly available OKE ...
- Question 44: Which OCI service facilitates the creation of a private conn...
- Question 45: Which OCI logging feature allows you to correlate network tr...
- Question 46: You are using the OCI Application Load Balancer (ALB) for yo...
- Question 47: Your company utilizes a hybrid cloud architecture, connectin...
- Question 48: Your company has deployed a mission-critical application on ...
- Question 49: You are a Network Engineer designing a hybrid cloud architec...
- Question 50: You are managing a critical application hosted on OCI. To en...
- Question 51: You have successfully enabled DNSSEC on your OCI DNS zone an...
- Question 52: You are managing a Site-to-Site VPN connection between your ...
