DevOps DevOps 5

Question 1

What is 'configuration drift'?

Accepted Answer

When environments diverge from their defined desired state over time

Answer

When a config file is renamed

Answer

When CPU usage spikes during deployment

Answer

When Git history is rewritten

Question 2

Why are 'health checks' important in load-balanced systems?

Accepted Answer

They let the load balancer route traffic only to healthy instances

Answer

They reduce the size of artifacts

Answer

They encrypt network traffic

Answer

They schedule cron jobs

Question 3

What does 'immutable infrastructure' mean?

Accepted Answer

Servers are never modified in place; changes mean replacing the instance

Answer

Servers can never be deleted

Answer

Infrastructure cannot use version control

Answer

Only one server is ever allowed

Question 4

In Kubernetes, what does a 'ConfigMap' store?

Accepted Answer

Non-sensitive configuration data decoupled from container images

Answer

Encrypted passwords and tokens

Answer

Container image layers

Answer

Pod scheduling logs

Question 5

What is the purpose of 'feature flags' in continuous delivery?

Accepted Answer

Enabling or disabling features at runtime without redeploying

Answer

Encrypting source code

Answer

Speeding up the build process

Answer

Replacing version control

Question 6

What is the primary advantage of containerization over traditional VMs?

Accepted Answer

Lighter weight and faster startup by sharing the host OS kernel

Answer

Stronger hardware-level isolation

Answer

Larger image sizes

Answer

No need for any orchestration

Question 7

What does 'mean time to recovery' (MTTR) measure?

Accepted Answer

The average time to restore service after a failure

Answer

The number of deployments per day

Answer

The total uptime of a system

Answer

The cost of cloud resources