Consul architecture Questions
Practice questions for Consul architecture topic in HashiCorp Certified: Consul Associate (003). 20 questions covering this domain.
An operations team runs Consul across VM and Kubernetes clusters. They want to add read scalability and redundancy to the VM-based Consul cluster with...
A Consul datacenter has five server nodes. How many server failures can the datacenter tolerate while still maintaining a quorum?
A DevOps engineer is designing a highly available Consul cluster for a production environment. According to HashiCorp's recommended reference architec...
What communication protocol does Consul use among server nodes to achieve consensus and perform leader election?
A Consul deployment uses Kubernetes. Which component replaces the traditional Consul client agent on Kubernetes to handle data plane functions such as...
A platform team worries that adding hundreds of client agents will slow Raft elections. Which statement matches Consul's consensus model?
In Consul Raft, which nodes make up the peer set that replicates the authoritative log?
A workload issues a read where stale data is not acceptable. According to the consensus docs, which server must answer that query?
A write arrives at the leader to register a new service. When does Consul consider that Raft log entry complete for the write path?
An operator is bringing up a brand new datacenter with no existing leader. Why is bootstrap mode used on the first server?
After the first server in a brand new datacenter has used bootstrap mode to self-elect and the remaining servers have joined the peer set, what should...
A team wants four Consul servers because they assume it provides meaningfully better fault tolerance than three. According to the consensus guidance, ...
During a post-incident review, an engineer asks what the Raft index represents in Consul. What is the best answer?
A client agent sends a catalog update to a server that is not currently the leader. What should happen next in Consul?
In Consul Raft, what causes a follower server to promote itself to candidate?
A three-server Consul cluster loses two servers, and the remaining server still has the newest data. Which statement is accurate?
A large production cluster has thousands of Consul client agents. Why does that scale not enlarge the Raft peer set?
A write request updates Consul state through the HTTP API. When does Consul consider that write complete?
During a busy period, operators notice that Consul is compacting state with a snapshot but the cluster continues accepting new transactions. Which arc...
A network partition leaves only two of five Consul servers able to communicate with each other. What is the result for new cluster writes?
Sign in to see all 20 questions
Create a free account to browse all questions — completely free during our launch phase.