Question 1

You need to determine the leader node for the Consul cluster. What command allows you to quickly identify the nodes and their current roles within the cluster?

Example of the command's output:

1. Node ID Address State Voter RaftProtocol

2. CONSUL-NODE-A 121abb4c-16fb-c8ec-2e2b-9595925de4dc 10.0.10.238:8300 follower true 3

3. CONSUL-NODE-C 4bead426-4471-0924-598f-cd6ce0015ebc 10.0.10.48:8300 follower true 3

4. CONSUL-NODE-E c44e8ab1-1132-1b22-9501-479c690c9e1b 10.0.10.105:8300 leader true 3

5. CONSUL-NODE-D ba86541f-cd93-6ada-b763-709b0fc6c09f 10.0.11.163:8300 follower true 3

6. CONSUL-NODE-B 2528cba1-06ea-4837-fc7b-13e44af19b0d 10.0.11.141:8300 follower true 3

Options :

A : consul nodes -leader

B : consul members

C :

consul raft- list

D :

consul operator raft list-peers

Answer: D

Question 2

Stephen is using Consul for service discovery, but he also wants to store data in the Consul K/V for application variables that need to be retrieved at runtime. However,

the application is currently architected to read data directly from a local file, not from a remote K/V service like Consul.

What Consul feature can Stephen use to retrieve data from Consul without re-architecting the application?

Options :

A : consul-template

B :

API

C : consul watch

D : envconsul

Answer: A

Question 3

You have a Consul cluster running production workloads in your environment. However, you've discovered that the cluster was initially deployed without gossip

encryption configured, which means that traffic is being sent in cleartext. The security team has requested this to be updated ASAP. However, you can't take an outage on

the Consul service right now, knowing the server nodes will stop communicating once you start editing the configuration files one by one.

How can you enable gossip encryption on the existing cluster without affecting the services it is currently providing the business?

Options :

A :

Generate the new encryption key using consul keygen. Update all the Consul server agent configuration files with the new encryption key. Using a scheduling tool,

execute the consul reload command for all nodes at the same time. This will ensure that there is minimal downtime for the Consul service.

B :

Generate the new encryption key using consul keygen. Update each Consul agent configuration file with the new configuration and set additional parameters to

verify incoming and outgoing encryption to false. Use rolling updates to walk through the steps of ultimately setting the parameters to true.

C :

Generate the new encryption key using consul keygen. Use the command consul keyring -install <key> and push the new encryption key out to all participating

nodes in the cluster. Finally, use the command consul keyring -use <key> to instruct Consul to use the key for encryption

D :

Generate the new encryption key using consul keygen. Update the Consul server agent configuration files with the new encryption key and issue a kill -HUP

<process ID> command so the Consul service reloads and picks up the new gossip configuration. Update and restart as a rolling update across the cluster so only a

single node is offline at a time.

Answer: B

Question 4

What command can be used for new Consul agents to become a member of an existing cluster?

Options :

A : consul join

B : consul cluster -join

C : consul exec -join

D : consul connect

Answer: A

Question 5

From the options below, select the features that are available in Consul Enterprise, and not available in the open-source offering.

Options :

A :

Connect (service to service authorization and encryption)

B : Autopilot (automated upgrades)

C : Consul snapshot agent (automated backups)

D : OIDC auth method (centralized authentication)

E : Sentinel (Policy as Code)

F :

Namespaces (datacenter isolation)

Answer: A,B,C,D

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