Question 1

True or False? A service definition can include multiple health checks.

Options :

A : false

B : true

Answer: B

Question 2

Complete the sentence:

The main restriction on Consul's K/V store is an object's size, which can be a maximum of _______?

Options :

A : 512KB

B : 8KB

C : 64KB

D : 1MB

Answer: A

Question 3

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 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,

Options :

A : the gossip keys need to match between federated datacenters

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

C : the client certificates are issued from different CAs

D : the syslog configurations do not match

Answer: A

Question 5

Which of the following is responsible for managing membership and broadcasting messages to the cluster?

Options :

A : Raft (Paxos)

B : Discovery chain

C : Serf (SWIM)

D : Prepared Queries

Answer: C