KCNA practice questions 131–140

1. Question 131 · 282 in bank

   What default level of protection is applied to the data in Secrets in the Kubernetes API?

   • AThe values use AES Symmetric Encryption
   • BThe values are stored in plain text
   • CThe values are encoded with SHA256 hashes
   • DThe values are base64 encoded

   Show answer

   Answer: D

   Explanation

   Kubernetes Secrets store sensitive information such as passwords, OAuth tokens, and SSH keys. The data stored in Secrets is base64 encoded by default. However, it's important to note that base64 encoding is not encryption—it's a reversible encoding scheme. While base64 encoding provides a basic level of obfuscation, it does not provide strong security against unauthorized access.

   Source: Adapted from community discussion — dadaarce

   Next question

2. Question 132 · 282 in bank

   What does vertical scaling an application deployment describe best?

   • AThe act of adding/removing applications to meet demand.
   • BThe act of adding/removing node instances to the cluster to meet demand.
   • CThe act of adding/removing resources to applications to meet demand.
   • DThe act of adding/removing application instances of the same application to meet demand.

   Show answer

   Answer: C

   Next question

3. Question 133 · 282 in bank

   What is Serverless computing?

   • AA computing method of providing backend services on an as-used basis.
   • BA computing method of providing services for AI and ML operating systems.
   • CA computing method of providing services for quantum computing operating systems.
   • DA computing method of providing services for cloud computing operating systems.

   Show answer

   Answer: A

   Next question

4. Question 134 · 282 in bank

   What is the purpose of the CRI?

   • ATo provide runtime integration control when multiple runtimes are used.
   • BSupport container replication and scaling on nodes.
   • CProvide an interface allowing Kubernetes to support pluggable container runtimes.
   • DAllow the definition of dynamic resource criteria across containers.

   Show answer

   Answer: C

   Next question

5. Question 135 · 282 in bank

   In CNCF, who develops specifications for industry standards around container formats and runtimes?

   • AOpen Container Initiative (OCI)
   • BLinux Foundation Certification Group (LFCG)
   • CContainer Network Interface (CNI)
   • DContainer Runtime Interface (CRI)

   Show answer

   Answer: A

   Next question

6. Question 136 · 282 in bank

   Which of the following options includes valid API versions?

   • Aalpha1v1, beta3v3, v2
   • Balpha1, beta3, v2
   • Cv1alpha1, v2beta3, v2
   • Dv1alpha1, v2beta3, 2.0

   Show answer

   Answer: C

   Explanation

   https://kubernetes.io/docs/reference/using-api/ Alpha: The version names contain alpha (for example, v1alpha1) Beta: The version names contain beta (for example, v2beta3). Stable: The version name is vX where X is an integer.

   Source: Adapted from community discussion — SeaH0rse66

   References

   • Kubernetes documentation

   Next question

7. Question 137 · 282 in bank

   Which of the following will view the snapshot of previously terminated ruby container logs from Pod web-1?

   • Akubectl logs -p -c ruby web-1
   • Bkubectl logs -c ruby web-1
   • Ckubectl logs -p ruby web-1
   • Dkubectl logs -p -c web-1 ruby

   Show answer

   Answer: A

   References

   • Kubernetes documentation
   • Kubernetes documentation

   Next question

8. Question 138 · 282 in bank

   A Kubernetes _____ is an abstraction that defines a logical set of Pods and a policy by which to access them.

   • ASelector
   • BController
   • CService
   • DJob

   Show answer

   Answer: C

   Next question

9. Question 139 · 282 in bank

   How many hosts are required to set up a highly available Kubernetes cluster when using an external etcd topology?

   • AFour hosts. Two for control plane nodes and two for etcd nodes.
   • BFour hosts. One for a control plane node and three for etcd nodes.
   • CThree hosts. The control plane nodes and etcd nodes share the same host.
   • DSix hosts. Three for control plane nodes and three for etcd nodes.

   Show answer

   Answer: D

   References

   • Kubernetes documentation

   Next question

10. Question 140 · 282 in bank

    What is CloudEvents?

    • AIt is a specification for describing event data in common formats for Kubernetes network traffic management and cloud providers.
    • BIt is a specification for describing event data in common formats in all cloud providers including major cloud providers
    • CIt is a specification for describing event data in common formats to provide interoperability across services, platforms and systems
    • DIt is a Kubernetes specification for describing events data in common formats for iCloud services, iOS platforms and iMac.

    Show answer

    Answer: C

    Next question

Keyboard:J Kmove between questionsA–Dselect an answerRshow or hide the answer← →change page

KCNA practice, question 131. 282 questions available.