Multi Datacenter Federation

Which protocol do Consul servers use to maintain the WAN gossip pool?

A cross-datacenter service discovery request is failing. You observe the local datacenter can resolve the service via DNS, but the remote datacenter cannot. Which configuration parameter must be checked?

In a multi-datacenter environment, what happens if the 'primary_datacenter' server cluster becomes unavailable?

You have enabled ACL replication between a primary and secondary datacenter. What is the effect of changing an ACL policy in the primary datacenter?

You are troubleshooting a partition between two datacenters. The WAN gossip shows high latency. Which Consul CLI tool provides the best insight into the WAN gossip state?

How do you enable WAN federation between two Consul datacenters that do not share a network?

You are joining two Consul datacenters via WAN gossip. Which command must be executed on a Consul server in the secondary datacenter to initiate the federation?

What is the role of a Consul server in a non-primary datacenter regarding ACLs?

A service in datacenter A needs to call a service in datacenter B. If 'prepared_queries' are not used, how does the service discovery query look?

What is the purpose of the 'datacenter' field in the Consul agent configuration?

What happens to the gossip protocol if the 'encrypt' key is mismatched between two datacenters trying to join via WAN?

When configuring ACL replication, where must the 'acl_replication_token' be defined?

You want to ensure that specific services in a remote datacenter are only accessible to certain local services. How can you achieve this?

When using 'prepared_queries' for cross-datacenter failover, what does the 'failover' block allow you to specify?

Which file path is standard for storing the Consul server configuration, including WAN settings?

What is the default port used for WAN gossip between Consul servers?

Which file format is used for Consul configuration?

What is the benefit of using a Mesh Gateway in a multi-datacenter deployment with overlapping IP space?

If you are running Consul Enterprise, what feature simplifies the management of cross-datacenter secrets?

To verify if two datacenters are connected via WAN, which command shows the remote datacenter's server nodes?

You notice that the KV store is not consistent across datacenters. What is the cause?

When joining a new datacenter to an existing WAN pool, what is the best practice for server versions?

What is the function of the 'retry_join_wan' configuration?

When using multiple datacenters, what is the primary role of the 'consul-template' tool?

Which TWO of the following are prerequisites for successful WAN federation?

Which TWO statements are true regarding Consul Mesh Gateways?

Which THREE configuration items are part of a complete WAN gossip setup?

When configuring an ACL policy for cross-datacenter access, what policy rule is necessary to read service information from a remote datacenter?

What is the recommended number of Consul servers per datacenter to ensure high availability?

Which THREE factors influence cross-datacenter service discovery resolution?

Which THREE items are required when configuring ACL replication in Consul?

Which TWO of the following accurately describe Consul's WAN gossip protocol behavior?

Which TWO of the following are true about Consul datacenters?

Which THREE items are included in the metadata shared via WAN gossip?

Which THREE features are critical for maintaining ACL consistency across datacenters?

Which THREE network considerations are vital for Consul WAN federation?

Which TWO of the following are valid ways to troubleshoot inter-datacenter communication issues?

Which TWO of the following are consequences of a primary datacenter outage in a federated environment?