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SCS-C02 · Question #41

A company needs to implement DNS Security Extensions (DNSSEC) for a specific subdomain. The subdomain is already registered with Amazon Route 53. A security engineer has enabled DNSSEC signing and has

The correct answer is C. Create a Delegation Signer (DS) record in the parent hosted zone.. After you enable DNSSEC signing for a hosted zone in Route 53, establish a chain of trust for the hosted zone to complete your DNSSEC signing setup. You do this by creating a Delegation Signer (DS) record in the parent hosted zone. https://docs.aws.amazon.com/Route53/latest/Devel

Submitted by tarun92· Mar 6, 2026Infrastructure Security

Question

A company needs to implement DNS Security Extensions (DNSSEC) for a specific subdomain. The subdomain is already registered with Amazon Route 53. A security engineer has enabled DNSSEC signing and has created a key-signing key (KSK). When the security engineer tries to test the configuration, the security engineer receives an error for a broken trust chain. What should the security engineer do to resolve this error?

Options

  • AReplace the KSK with a zone-signing key (ZSK).
  • BDeactivate and then activate the KSK.
  • CCreate a Delegation Signer (DS) record in the parent hosted zone.
  • DCreate a Delegation Signer (DS) record in the subdomain.

How the community answered

(34 responses)
  • A
    3% (1)
  • B
    6% (2)
  • C
    79% (27)
  • D
    12% (4)

Explanation

After you enable DNSSEC signing for a hosted zone in Route 53, establish a chain of trust for the hosted zone to complete your DNSSEC signing setup. You do this by creating a Delegation Signer (DS) record in the parent hosted zone. https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-configuring-dnssec-enable-

Topics

#DNSSEC#Route 53#key-signing key#Delegation Signer record

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