Which command can you enter on a Cisco IOS device to enable a scheduled algorithm that directs lookup calls to multiple DNS hosts?
Click on the arrows to vote for the correct answerA. B. C. D.
The correct answer is D. "ip domain round-robin" is the command that enables a scheduled algorithm that directs lookup calls to multiple DNS hosts.
The Domain Name System (DNS) is a critical component of any network infrastructure as it is responsible for resolving domain names to IP addresses. In some cases, a network administrator may want to configure multiple DNS servers to provide redundancy and load balancing.
Cisco IOS devices support a feature called DNS round-robin, which enables the device to cycle through a list of DNS servers for name resolution. When this feature is enabled, the device rotates through a list of DNS servers in a round-robin fashion, sending each request to the next server in the list.
To enable DNS round-robin on a Cisco IOS device, the "ip domain round-robin" command should be entered in global configuration mode. This command instructs the device to use round-robin DNS resolution.
For example, to configure DNS round-robin with three DNS servers, the following commands can be used:
Router(config)# ip name-server 192.168.10.14 Router(config)# ip name-server 192.168.10.15 Router(config)# ip name-server 192.168.10.16 Router(config)# ip domain round-robin
After entering these commands, the device will use round-robin DNS resolution for all name resolution requests.
Answer A "ip name-server 192.168.10.14 192.168.10.15" is a command that configures the IP addresses of DNS servers that the device should use for name resolution.
Answer B "ip domain list" is a command that displays the current domain search list used by the device.
Answer C "ip domain lookup" is a command that enables DNS resolution on the device. It is not used to configure DNS round-robin.