Free HashiCorp Consul-Associate Exam Questions

Question 1

Which of the following are valid Consul watch types that you can use to monitor updates in Consul? (select five)

A : yprefix

B : rvice

C : rvices

D : gin

E : des

F : arm

G : y

Answer: A,B,C

Question 2

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?

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 toverify 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 and push the new encryption key out to all participatingnodes in the cluster. Finally, use the command consul keyring -use 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 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 asingle node is offline at a time.

Answer: B

Question 3

True or False? A prepared query can be used to assist with service failover between multiple federated Consul datacenters.

A : lse

B : ue

Answer: B

Question 4

You have two Consul datacenters and you want to enable federation so services in dc1 can discover services in dc2. You run the consul join wan node2.example.com.

However, servers in dc1 can not communicate with servers in dc2 and vice versa. Based on the snippets of the server configuration files can be found below, why would

this be assuming network connectivity is working as expected?

dc1 configuration

1. "datacenter": "dc1",

2. "server": true,

3. "key_file": "/etc/consul.d/cert.key",

4. "cert_file": "/etc/consul.d/client.pem",

5. "ca_file": "/etc/consul.d/chain.pem",

6. "verify_incoming": true,

7. "verify_outgoing": true,

8. "verify_server_hostname": true,

9. "ui": true,

10. "encrypt": "XIUEktl3YjG9KPJfaBU1xE69IZ0XhsNCSH423FyknJE=",

11. "bootstrap_expect": 5,

12. "enable_syslog": true,

dc2 configuration

1. "datacenter": "dc2",

2. "server": true,

3. "key_file": "/etc/consul.d/cert.key",

4. "cert_file": "/etc/consul.d/client.pem",

5. "ca_file": "/etc/consul.d/chain.pem",

6. "verify_incoming": true,

7. "verify_outgoing": true,

8. "verify_server_hostname": true,

9. "ui": true,

10. "encrypt": "LSBSOZI5+9EX/kdY8u27mX50rk1ywcprfUCoSZjnpUg=",

11. "bootstrap_expect": 5,

12. "enable_syslog": false,

A : gossip keys need to match between federated datacenters

B : verify_incoming setting should be set to false before WAN federation can be configured

C : client certificates are issued from different CAs

D : syslog configurations do not match

Answer: A

Question 5

Scenario: You are storing configuration settings for your application in Consul's K/V store, and each setting is critical to the successful implementation of the application.

A developer recently updated the value for app1, causing the deployment to fail.

What Consul feature can be used to monitor the K/V store for updates and automatically take action to remediate the issue?

A : t up an ACL to automatically restart the Consul service when a value is changed

B : configure a watch and execute a script to update the application

C : t up health checks to monitor for changes to the K/V store

D : the raft consensus protocol to replicate the changes from the other nodes when a value is changed

Answer: A