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The SecOps Group CNSP Exam Syllabus Topics:

Topic	Details
Topic 1	Common vulnerabilities affecting Windows Services: This section of the exam measures the skills of Network Engineers and focuses on frequently encountered weaknesses in core Windows components. It underscores the need to patch, configure, and monitor services to prevent privilege escalation and unauthorized use.
Topic 2	Network Security Tools and Frameworks (such as Nmap, Wireshark, etc)
Topic 3	Open-Source Intelligence Gathering (OSINT): This section of the exam measures the skills of Security Analysts and discusses methods for collecting publicly available information on targets. It stresses the legal and ethical aspects of OSINT and its role in developing a thorough understanding of potential threats.
Topic 4	TLS Security Basics: This section of the exam measures the skills of Security Analysts and outlines the process of securing network communication through encryption. It highlights how TLS ensures data integrity and confidentiality, emphasizing certificate management and secure configurations.
Topic 5	This section of the exam measures the skills of Network Engineers and explains how to verify the security and performance of various services running on a network. It focuses on identifying weaknesses in configurations and protocols that could lead to unauthorized access or data leaks.
Topic 6	Linux and Windows Security Basics: This section of the exam measures skills of Security Analysts and compares foundational security practices across these two operating systems. It addresses file permissions, user account controls, and basic hardening techniques to reduce the attack surface.
Topic 7	Basic Malware Analysis: This section of the exam measures the skills of Network Engineers and offers an introduction to identifying malicious software. It covers simple analysis methods for recognizing malware behavior and the importance of containment strategies in preventing widespread infection.
Topic 8	Network Discovery Protocols: This section of the exam measures the skills of Security Analysts and examines how protocols like ARP, ICMP, and SNMP enable the detection and mapping of network devices. It underlines their importance in security assessments and network monitoring.
Topic 9	TCP IP (Protocols and Networking Basics): This section of the exam measures the skills of Security Analysts and covers the fundamental principles of TCP IP, explaining how data moves through different layers of the network. It emphasizes the roles of protocols in enabling communication between devices and sets the foundation for understanding more advanced topics.
Topic 10	Testing Network Services
Topic 11	Active Directory Security Basics: This section of the exam measures the skills of Network Engineers and introduces the fundamental concepts of directory services, highlighting potential security risks and the measures needed to protect identity and access management systems in a Windows environment.

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The SecOps Group Certified Network Security Practitioner Sample Questions (Q13-Q18):

NEW QUESTION # 13
In the context of the SSH (Secure Shell) public-private key authentication mechanism, which key is uploaded to the server and which key is used by the end-user for authentication?

A. The public key is uploaded to the server and the private key is used by the end user for authentication.
B. The private key is uploaded to the server and the public key is used by the end user for authentication.

Answer: A

Explanation:
SSH (Secure Shell), per RFC 4251, uses asymmetric cryptography (e.g., RSA, ECDSA) for secure authentication:
Key Pair:
Public Key: Freely shareable, used to encrypt or verify.
Private Key: Secret, used to decrypt or sign.
Process:
User generates a key pair (e.g., ssh-keygen -t rsa -b 4096).
Public Key is uploaded to the server, appended to ~/.ssh/authorized_keys (e.g., via ssh-copy-id).
Private Key (e.g., ~/.ssh/id_rsa) stays on the user's machine.
Authentication: Client signs a challenge with the private key; server verifies it with the public key.
Technical Details:
Protocol: SSH-2 (RFC 4253) uses a Diffie-Hellman key exchange, then public-key auth.
Files: authorized_keys (server, 0644 perms), private key (client, 0600 perms).
Security: Private key exposure compromises all systems trusting the public key.
Security Implications: CNSP likely stresses key management (e.g., passphrases, rotation) and server-side authorized_keys hardening (e.g., PermitRootLogin no).
Why other options are incorrect:
B: Uploading the private key reverses the model, breaking security-anyone with the server's copy could authenticate as the user. Asymmetric crypto relies on the private key remaining secret.
Real-World Context: GitHub uses SSH public keys for repository access, with private keys on user devices.

NEW QUESTION # 14
Which of the following services use TCP protocol?

A. NTP
B. IKE
C. HTTP
D. SNMP

Answer: C

Explanation:
TCP (Transmission Control Protocol) ensures reliable, ordered data delivery via a connection-oriented handshake, contrasting with UDP's lightweight, connectionless approach. Analyzing each service:
C . HTTP (Hypertext Transfer Protocol): Uses TCP (port 80) for web traffic. TCP's reliability ensures HTML, images, etc., arrive intact. HTTPS (TCP 443) extends this with TLS. RFC 2616 mandates TCP.
A . SNMP (Simple Network Management Protocol): Defaults to UDP (port 161) for monitoring devices. UDP's speed suits its lightweight queries, though TCP variants exist (rarely used).
B . NTP (Network Time Protocol): Uses UDP (port 123) per RFC 5905. UDP minimizes latency for time sync, tolerating occasional packet loss.
D . IKE (Internet Key Exchange): Part of IPsec, uses UDP (port 500) per RFC 7296. UDP suits its negotiation phase; TCP isn't standard.
Security Implications: TCP services like HTTP are more prone to state-based attacks (e.g., SYN floods) than UDP counterparts. CNSP likely contrasts TCP vs. UDP in protocol analysis.
Why other options are incorrect:
A, B, D: All default to UDP for efficiency, not TCP's reliability.
Real-World Context: Firewalls prioritize TCP 80/443 rules for HTTP/HTTPS, while UDP 123 is opened for NTP servers.

NEW QUESTION # 15
Which of the following is an example of a SUID program?

A. None of the above
B. /usr/bin/passwd
C. /bin/ls
D. /usr/bin/curl

Answer: B

Explanation:
In Linux/Unix, the SUID (Set User ID) bit allows a program to execute with the owner's permissions, typically root, rather than the caller's. It's denoted by an s in the user execute field (e.g., -rwsr-xr-x). Common SUID programs perform privileged tasks requiring temporary elevation.
Analysis:
C . /usr/bin/passwd:
Purpose: Updates user passwords in /etc/shadow (root-owned, 0600 perms).
Permissions: Typically -rwsr-xr-x, owned by root. The SUID bit lets non-root users modify shadow securely.
Command: ls -l /usr/bin/passwd confirms SUID (s in user execute).
A . /bin/ls:
Purpose: Lists directory contents, no privileged access needed.
Permissions: -rwxr-xr-x (no SUID). Runs as the calling user.
B . /usr/bin/curl:
Purpose: Transfers data over HTTP/FTP, no root privileges required by default.
Permissions: -rwxr-xr-x (no SUID).
Technical Details:
SUID Bit: Set via chmod u+s <file> or chmod 4755.
Security: SUID binaries are audited (e.g., find / -perm -u=s) due to escalation risks if writable or poorly coded (e.g., buffer overflows).
Security Implications: CNSP likely highlights SUID as an attack vector (e.g., CVE-1996-0095 exploited passwd flaws). Hardening removes unnecessary SUID bits.
Why other options are incorrect:
A, B: Lack SUID; no privileged operations.
D: Incorrect, as /usr/bin/passwd is a SUID example.
Real-World Context: SUID on /bin/su or /usr/bin/sudo similarly enables privilege escalation, often targeted in exploits.

NEW QUESTION # 16
Which of the following files has the SGID permission set?
-rwxr-sr-x 1 root root 4096 Jan 1 08:00 myfile
-rwsr-xr-x 1 root root 4096 Jan 1 00:08 myprogram
-rw-r--r-s 1 root root 4896 Jan 1 00:00 anotherfile

A. anotherfile
B. myfile
C. All of the above
D. myprogram

Answer: B

Explanation:
In Linux, the SGID (Set Group ID) bit alters execution or directory behavior:
On executables: Runs with the group owner's permissions (e.g., s in group execute position).
On directories: New files inherit the directory's group ownership.
Notation: s in group execute field (e.g., -rwxr-sr-x), or S if no execute (e.g., -rwxr-Sr-x).
Analysis:
-rwxr-sr-x (myfile): User: rwx, Group: r-s (SGID), Others: r-x. The s in group execute confirms SGID.
-rwsr-xr-x (myprogram): User: rws (SUID), Group: r-x, Others: r-x. The s is in user execute, not group-no SGID.
-rw-r--r-s (anotherfile): User: rw-, Group: r--, Others: r-s. The s is in others execute, but no x exists, rendering it meaningless (not SGID; could be a typo or sticky bit misapplied).
Security Implications: SGID executables (e.g., /usr/bin/wall) or directories (e.g., /var/local) manage group access. Misuse risks privilege escalation. CNSP likely teaches auditing with find / -perm -g=s.
Why other options are incorrect:
B: SUID, not SGID.
C: No valid SGID; s in others is irrelevant without execute.
D: Only A has SGID.
Real-World Context: SGID on /var/mail ensures mail files inherit the mail group.

NEW QUESTION # 17
Which of the following files has the SUID permission set?
-rwxr-sr-x 1 root root 4096 Jan 1 00:00 myfile
-rwsr-xr-x 1 root root 4896 Jan 1 08:00 myprogram
-rw-r--r-s 1 root root 4096 Jan 1 00:00 anotherfile

A. anotherfile
B. myfile
C. All of the above
D. myprogram

Answer: D

Explanation:
In Linux/Unix, file permissions are displayed in a 10-character string (e.g., -rwxr-xr-x), where the first character is the file type (- for regular files) and the next nine are permissions for user (owner), group, and others (rwx = read, write, execute). Special bits like SUID (Set User ID) modify execution behavior:
SUID: When set, a program runs with the owner's permissions (e.g., root) rather than the executor's. It's denoted by an s in the user execute position (replacing x if executable, or capitalized S if not).
Analysis:
-rwxr-sr-x (myfile): User: rwx, Group: r-s (SGID), Others: r-x. The s is in the group execute position, indicating SGID, not SUID.
-rwsr-xr-x (myprogram): User: rws (SUID), Group: r-x, Others: r-x. The s in the user execute position confirms SUID; owned by root, it runs as root.
-rw-r--r-s (anotherfile): User: rw-, Group: r--, Others: r-s. The s is in the others execute position, but no x exists, making it irrelevant (and not SUID). Typically, s here would be a sticky bit on directories, not files.
Security Implications: SUID binaries (e.g., /usr/bin/passwd) are common targets for privilege escalation if misconfigured (e.g., writable by non-root users). CNSP likely emphasizes auditing SUID permissions with find / -perm -u=s.
Why other options are incorrect:
A . myfile: Has SGID (s in group), not SUID.
C . anotherfile: The s doesn't indicate SUID; it's a misapplied bit without execute permission.
D . All of the above: Only myprogram has SUID.
Real-World Context: Exploiting SUID binaries is a classic Linux attack vector (e.g., CVE-2016-1247 for Nginx).

NEW QUESTION # 18
......

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The SecOps Group CNSP Exam Syllabus Topics:

Free PDF Quiz CNSP - Certified Network Security Practitioner –Trustable Training Online

The SecOps Group Certified Network Security Practitioner Sample Questions (Q13-Q18):

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