Free NSA Cybersecurity Knowledge Questions and Answers

Question 1

You need to transmit PII via email and you want to maintain its confidentiality. Which of the following choices is the BEST solution?

Accepted Answer

Encrypt it before sending.

Answer

Explanation:
Encrypt it before sending is the best solution because encryption ensures that the content of the email is scrambled in such a way that only the sender and the intended recipient can decipher it using encryption keys. This helps safeguard the confidentiality of the Personally Identifiable Information (PII) during transmission.

Question 2

Louie hid several plaintext documents within an image file. He then sent the image file to Tony. Which of the following BEST describes the purpose of his action?

Accepted Answer

Obfuscation

Answer

Explanation:
Obfuscation is the best description because Louie's action involves hiding plaintext documents within an image file, which obscures the true nature of the data. Obfuscation aims to make data or code more difficult to understand or interpret, often for the purpose of concealing information or thwarting analysis by unauthorized parties.

Question 3

Management has mandated the use of digital signatures by all personnel within your organization. Which of the following use cases does this primarily support?

Accepted Answer

Supporting non-repudiation

Answer

Explanation:
Supporting non-repudiation is the primary use case for mandating the use of digital signatures. Digital signatures provide a way to verify the authenticity and integrity of electronic documents or messages, thereby ensuring that the sender cannot later deny having sent the message or document. This helps establish accountability and trust in electronic transactions within the organization.

Question 4

Your organization has implemented a Virtual Desktop Infrastructure (VDI) for most users. When a user logs off, the desktop reverts to its original state without saving any changes made by the user. Which of the following BEST describes this behavior?

Accepted Answer

Non-Persistence

Answer

Explanation:
Non-Persistence is the best description because the desktop environment reverts to its original state without saving any changes made by the user upon logoff. This behavior is characteristic of non-persistent VDI configurations, where changes made by users during their sessions are discarded, ensuring a clean and consistent desktop environment for each user session.

Question 5

Which type of virtualization allows a computer's operating system kernel to run multiple isolated instances of a guest virtual machine, with each guest sharing the kernel?

Accepted Answer

Container Virtualization

Answer

Explanation:
Container Virtualization is the best description because it allows a computer's operating system kernel to run multiple isolated instances of a guest virtual machine, with each guest sharing the kernel. In container virtualization, applications and their dependencies are packaged together as containers, which share the host operating system's kernel while remaining isolated from each other. This approach offers lightweight and efficient virtualization compared to traditional hypervisor-based virtualization.

NSA - National Security Agency Practice Test

NSA - National Security Agency Practice Test

Free NSA Cybersecurity Knowledge Questions and Answers