A system administrator is configuring core IP services across multiple subnets in an enterprise network. Which TWO of the following configurations are required to allow hosts on remote subnets to automatically acquire IPv4 addresses and resolve domain names to IPv4 addresses? (Select TWO)
- Configuring a DHCP relay agent (IP helper) on the default gateway interface of each client subnetCevap
- Creating DNS A records on the domain name server for internal hostnamesCevap
- CDeploying an independent DHCP server on every physical switch to avoid routing DHCP traffic
- DCreating DNS PTR records to handle forward domain-name-to-IP-address resolution
- EOpening firewall UDP port 53 for DHCP client leases and UDP port 67 for DNS hostname lookups
Cevap
The necessary configurations are deploying a DHCP relay agent (IP helper) on local router interfaces to forward DHCP broadcasts across subnets, and creating DNS A records to resolve hostnames to IPv4 addresses.
A DHCP relay agent (IP helper) allows clients on remote subnets to reach a central DHCP server by converting local broadcast requests into unicast traffic. Additionally, DNS A records perform forward address resolution from domain names to IPv4 addresses.
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Anahtar Kavram
IP Addressing Services (DHCP Relay and DNS Record Types)