Crucial Exams

ISC2 Certified Cloud Security Professional (CCSP) Practice Question

Your company is lifting-and-shifting a three-tier application into a public IaaS provider. All virtual machines will stay in one virtual network, and the provider's built-in recursive DNS service will handle name resolution. After recent cache-poisoning attempts, the security team wants a control that lets each DNS resolver verify data has not been spoofed or altered while in transit inside the provider. Which network feature must be available and enabled?

  • Establish a dedicated IPsec VPN tunnel from every VM to the DNS servers

  • Use virtual network peering with route filtering between application tiers

  • Enable DNS Security Extensions (DNSSEC) validation and require domain zones to be signed

  • Configure DHCP option 82 to include relay-agent information for all subnets

ISC2 Certified Cloud Security Professional (CCSP)
Cloud Security Operations
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