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NEW QUESTION # 184
You have a Kubernetes cluster with a deployment named 'my-app' that has a replica count of 3. You need to temporarily scale it down to 1 replica. Which command would you use?
Answer: B,E
Explanation:
Both 'kubectl scale deployments my-app -replicas=l' and 'kubectl set scale deployments my- app --replicas=1' are valid commands to scale down the deployment. Option 'C' also works but it is more verbose. Option 'B' would edit the deployment configuration, which is not the desired outcome in this case. Option 'E' would apply a new configuration, which is also not ideal.
NEW QUESTION # 185
In CNCF, who develops specifications for industry standards around container formats and runtimes?
Answer: A
Explanation:
The organization responsible for defining widely adopted standards around container formats and runtime specifications is the Open Container Initiative (OCI), so A is correct. OCI defines the image specification (how container images are structured and stored) and the runtime specification (how to run a container), enabling interoperability across tooling and vendors. This is foundational to the cloud-native ecosystem because it allows different build tools, registries, runtimes, and orchestration platforms to work together reliably.
Within Kubernetes and CNCF-adjacent ecosystems, OCI standards are the reason an image built by one tool can be pushed to a registry and pulled/run by many different runtimes. For example, a Kubernetes node running containerd or CRI-O can run OCI-compliant images consistently. OCI standardization reduces fragmentation and vendor lock-in, which is a core motivation in open source cloud-native architecture.
The other options are not correct for this question. CNI (Container Network Interface) is a standard for configuring container networking, not container image formats and runtimes. CRI (Container Runtime Interface) is a Kubernetes-specific interface between kubelet and container runtimes-it enables pluggable runtimes for Kubernetes, but it is not the industry standard body for container format/runtime specifications.
"LFCG" is not the recognized standards body here.
In short: OCI defines the "language" for container images and runtime behavior, which is why the same image can be executed across environments. Kubernetes relies on those standards indirectly through runtimes and tooling, but the specification work is owned by OCI. Therefore, the verified correct answer is A.
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NEW QUESTION # 186
Which command retrieves container logs from a specific container in a multi-container Pod?
Answer: B
Explanation:
The kubectl logs command with the -c flag specifies the exact container within a multi-container Pod, allowing retrieval of logs from that specific container.
NEW QUESTION # 187
What kubectl command is used to retrieve the resource consumption (CPU and memory) for nodes or Pods?
Answer: C
NEW QUESTION # 188
What default level of protection is applied to the data in Secrets in the Kubernetes API?
Answer: C
Explanation:
Kubernetes Secrets are designed to store sensitive data such as tokens, passwords, or certificates and make them available to Pods in controlled ways (as environment variables or mounted files). However, the default protection applied to Secret values in the Kubernetes API is base64 encoding, not encryption. That is why D is correct. Base64 is an encoding scheme that converts binary data into ASCII text; it is reversible and does not provide confidentiality.
By default, Secret objects are stored in the cluster's backing datastore (commonly etcd) as base64-encoded strings inside the Secret manifest. Unless the cluster is configured for encryption at rest, those values are effectively stored unencrypted in etcd and may be visible to anyone who can read etcd directly or who has API permissions to read Secrets. This distinction is critical for security: base64 can prevent accidental issues with special characters in YAML/JSON, but it does not protect against attackers.
Option A is only correct if encryption at rest is explicitly configured on the API server using an EncryptionConfiguration (for example, AES-CBC or AES-GCM providers). Many managed Kubernetes offerings enable encryption at rest for etcd as an option or by default, but that is a deployment choice, not the universal Kubernetes default. Option C is incorrect because hashing is used for verification, not for secret retrieval; you typically need to recover the original value, so hashing isn't suitable for Secrets. Option B ("plain text") is misleading: the stored representation is base64-encoded, but because base64 is reversible, the security outcome is close to plain text unless encryption at rest and strict RBAC are in place.
The correct operational stance is: treat Kubernetes Secrets as sensitive; lock down access with RBAC, enable encryption at rest, avoid broad Secret read permissions, and consider external secret managers when appropriate. But strictly for the question's wording-default level of protection-base64 encoding is the right answer.
NEW QUESTION # 189
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