Implement On-Premises and Hybrid Name Resolution AZ-800 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is the primary function of the Azure DNS Private Resolver?

   • ATo provide DNS resolution for resources within a single virtual network only
   • BTo resolve DNS queries between on-premises networks and Azure virtual networks
   • CTo block malicious DNS queries
   • DTo host public DNS zones for internet-facing services
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2. 7application · medium

   A company has an on-premises data center connected to an Azure virtual network via ExpressRoute. They have deployed an Azure DNS Private Resolver with an inbound endpoint. They need to resolve names from on-premises for Azure resources that use Azure Private DNS zones. What should you configure on the on-premises DNS servers?

   • AA forwarder for all queries pointing to the inbound endpoint IP of the resolver.
   • BA secondary zone for each Azure Private DNS zone with the resolver as master.
   • CA stub zone for each Azure Private DNS zone with the resolver as master.
   • DConditional forwarders for each Azure Private DNS zone pointing to the inbound endpoint IP of the resolver.
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4. 8application · easy

   A company has an Active Directory domain with a DNS zone 'contoso.com'. They need to add a new web server with the hostname 'web' and IP address 192.168.1.50. The server will be used internally and should be resolvable by all domain members. What should you do?

   • ACreate a new A record in the contoso.com zone with name 'web' and IP 192.168.1.50.
   • BCreate a new SRV record for the web service.
   • CCreate a new PTR record in the reverse lookup zone.
   • DCreate a new CNAME record pointing 'web' to the server's FQDN.
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5. 9expert · hard

   Your company has a split-brain DNS environment. Internal clients should resolve www.contoso.com to an internal IP (10.0.0.10), while external clients should resolve it to a public IP (203.0.113.10). You have a single Windows Server DNS server that is authoritative for contoso.com. You need to implement this without creating a separate external DNS server. What should you configure?

   • AA CNAME record pointing to a name that resolves differently based on the client's DNS server.
   • BDNS policies with two query resolution scopes: one for internal subnets and one for all other clients.
   • CTwo A records with different IP addresses and enable round-robin.
   • DA single A record with the internal IP and a NAT rule on the firewall.
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6. 10application · medium

   A company runs a hybrid environment with an on-premises Windows Server DNS infrastructure and a public web application hosted in Azure App Service. The company wants to use Azure Public DNS to host the public zone for its domain, contoso.com, while continuing to use on-premises DNS for internal resolution. The on-premises DNS servers must be able to resolve the public records for contoso.com. What should you configure on the on-premises DNS servers?

   • AA secondary zone for contoso.com with Azure name servers as masters.
   • BA conditional forwarder for contoso.com pointing to Azure-provided name servers.
   • CA forwarder for all queries pointing to Azure name servers.
   • DA stub zone for contoso.com with Azure name servers as masters.
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