Free The SecOps Group CNSP Exam Actual Questions

The questions for CNSP were last updated On Mar 10, 2025

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Question No. 1

Which one of the following is a phishing email?

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Correct Answer: B

Question No. 2

Which of the following commands will work on a Microsoft operating system to add a new domain admin user?

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Correct Answer: A

Adding a user to a domain group like 'Domain Admins' requires the correct command and scope (domain vs. local).

Why A is correct: net group 'Domain Admins' John /add /domain adds user John to the domain-level 'Domain Admins' group, per CNSP's domain privilege management.

Why other options are incorrect:

B: net user creates users, not group memberships; syntax is wrong.

C: /admin is invalid; correct group specification is missing.

D: Targets local 'Administrator' group, not domain 'Domain Admins'.


Question No. 3

Which of the following services do not encrypt its traffic by default?

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Correct Answer: A

Encryption ensures confidentiality and integrity of network traffic. Analyzing defaults:

A . DNS (Domain Name System):

Default: Unencrypted (UDP/TCP 53), per RFC 1035. Queries/responses (e.g., ''google.com 142.250.190.14'') are plaintext.

Modern Options: DNS over HTTPS (DoH, TCP 443) or DNS over TLS (DoT, TCP 853) encrypt, but aren't default in most systems (e.g., pre-2020 Windows).

B . SSH (Secure Shell):

Default: Encrypted (TCP 22), per RFC 4251. Uses asymmetric (e.g., RSA) and symmetric (e.g., AES) crypto for all sessions.

C . FTPS (FTP Secure):

Default: Encrypted (TCP 21 control, dynamic data ports). Extends FTP with SSL/TLS (e.g., RFC 4217), securing file transfers.

Technical Details:

DNS: Plaintext exposes queries to eavesdropping (e.g., ISP snooping) or spoofing (e.g., cache poisoning).

SSH/FTPS: Encryption is baked into their standards; disabling it requires explicit misconfiguration.

Security Implications: Unencrypted DNS risks privacy and integrity (e.g., Kaminsky attack). CNSP likely pushes DoH/DoT adoption.

Why other options are incorrect:

B, C: Encrypt by default.

D: False, as only DNS lacks default encryption.

Real-World Context: The 2013 Snowden leaks exposed DNS monitoring; DoH uptake (e.g., Cloudflare 1.1.1.1) counters this.


Question No. 4

In a Linux-based architecture, what does the /mnt directory contain?

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Correct Answer: A

The Linux Filesystem Hierarchy Standard (FHS), per FHS 3.0, defines directory purposes:

/mnt: Designated for temporarily mounted filesystems, typically by system administrators.

Use: Mount points for removable media (e.g., USB drives: mount /dev/sdb1 /mnt/usb) or network shares (e.g., NFS).

Nature: Transient, user-managed, not persistent across reboots (unlike /etc/fstab mounts).

Contrast:

/media: Auto-mounts removable devices (e.g., by desktop environments like GNOME).

/mnt vs. /media: /mnt is manual, /media is system-driven.

Technical Details:

Empty by default; subdirectories (e.g., /mnt/usb) are created as needed.

Permissions: Typically root-owned (0755), requiring sudo for mounts.

Security Implications: Misconfigured /mnt mounts (e.g., world-writable) risk unauthorized access. CNSP likely covers mount security (e.g., nosuid option).

Why other options are incorrect:

B . System config/init scripts: Found in /etc (e.g., /etc/passwd, /etc/init.d).

C . Driver modules: Located in /lib/modules/<kernel-version>.

D . Kernel state: Resides in /proc (e.g., /proc/cpuinfo).

Real-World Context: Admins mount ISOs at /mnt during server provisioning (e.g., mount -o loop image.iso /mnt).


Question No. 5

A system encrypts data prior to transmitting it over a network, and the system on the other end of the transmission media decrypts it. If the systems are using a symmetric encryption algorithm for encryption and decryption, which of the following statements is true?

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Correct Answer: A

Symmetric encryption is a cryptographic technique where the same key is used for both encryption and decryption processes. In the context of network security, when data is encrypted prior to transmission and decrypted at the receiving end using a symmetric encryption algorithm (e.g., AES or Triple-DES), both the sender and receiver must share and utilize an identical secret key. This key is applied by the sender to transform plaintext into ciphertext and by the receiver to reverse the process, recovering the original plaintext. The efficiency of symmetric encryption makes it ideal for securing large volumes of data transmitted over networks, provided the key is securely distributed and managed.

Why A is correct: Option A accurately describes the fundamental property of symmetric encryption---using a single shared key for both encryption and decryption. This aligns with CNSP documentation, which emphasizes symmetric encryption's role in securing data in transit (e.g., via VPNs or secure file transfers).

Why other options are incorrect:

B: This describes asymmetric encryption (e.g., RSA), where different keys (public and private) are used for encryption and decryption, not symmetric encryption.

C: Symmetric encryption inherently relies on keys; the absence of keys contradicts its definition and operational mechanism.

D: Symmetric encryption is not inherently insecure; its security depends on key strength and management practices, not the algorithm itself. CNSP highlights that algorithms like AES are widely regarded as secure when implemented correctly.