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The SecOps Group CNSP Exam Syllabus Topics:

Topic
Details

Topic 1

Cryptography: This section of the exam measures the skills of Security Analysts and focuses on basic encryption and decryption methods used to protect data in transit and at rest. It includes an overview of algorithms, key management, and the role of cryptography in maintaining data confidentiality.

Topic 2

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 3

Testing Web Servers and Frameworks: This section of the exam measures skills of Security Analysts and examines how to assess the security of web technologies. It looks at configuration issues, known vulnerabilities, and the impact of unpatched frameworks on the overall security posture.

Topic 4

This section of the exam measures skills of Network Engineers and explores the utility of widely used software for scanning, monitoring, and troubleshooting networks. It clarifies how these tools help in detecting intrusions and verifying security configurations.

Topic 5

Network Security Tools and Frameworks (such as Nmap, Wireshark, etc)

Topic 6

Testing Network Services

Topic 7

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 8

Database Security Basics: This section of the exam measures the skills of Network Engineers and covers how databases can be targeted for unauthorized access. It explains the importance of strong authentication, encryption, and regular auditing to ensure that sensitive data remains protected.

Topic 9

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 10

Network Architectures, Mapping, and Target Identification: This section of the exam measures the skills of Network Engineers and reviews different network designs, illustrating how to diagram and identify potential targets in a security context. It stresses the importance of accurate network mapping for efficient troubleshooting and defense.

Topic 11

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 12

Network Scanning & Fingerprinting: This section of the exam measures the skills of Security Analysts and covers techniques for probing and analyzing network hosts to gather details about open ports, operating systems, and potential vulnerabilities. It emphasizes ethical and legal considerations when performing scans.

Topic 13

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 14

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.

The SecOps Group Certified Network Security Practitioner Sample Questions (Q38-Q43):

NEW QUESTION # 38
Which of the following is an example of a SUID program?

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

Answer: C

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 # 39
On a Microsoft Windows operating system, what does the following command do?
net localgroup Sales Sales_domain /add

A. Add a local group Sales to the domain group
B. Display the list of the users of a local group Sales
C. Add a new user to the local group Sales
D. Add a domain group to the local group Sales

Answer: D

Explanation:
The net localgroup command manages local group memberships on Windows systems, with syntax dictating its action.
Why B is correct: net localgroup Sales Sales_domain /add adds the domain group Sales_domain to the local group Sales, granting its members local group privileges. CNSP covers this for privilege escalation testing.
Why other options are incorrect:
A: Displaying users requires net localgroup Sales without /add.
C: Adding a user requires a username, not a group name like Sales_domain.
D: The reverse (local to domain) uses net group, not net localgroup.

NEW QUESTION # 40
What is the response from a closed UDP port which is not behind a firewall?

A. ICMP message showing Destination Unreachable
B. A RST packet
C. None of the above
D. No response

Answer: A

Explanation:
UDP is a connectionless protocol, and its behavior when a packet reaches a port depends on whether the port is open or closed. Without a firewall altering the response, the standard protocol applies.
Why A is correct: When a UDP packet is sent to a closed port, the host typically responds with an ICMP Type 3 (Destination Unreachable), Code 3 (Port Unreachable) message, indicating no service is listening. CNSP notes this as a key indicator in port scanning.
Why other options are incorrect:
B: RST packets are TCP-specific, not used in UDP.
C: No response occurs for open UDP ports unless an application replies, not closed ports.
D: A is correct, so "none of the above" is invalid.

NEW QUESTION # 41
On a Microsoft Windows Operating System, what does the following command do?
net localgroup administrators

A. Displays the local administrators group on the computer
B. List domain admin users for the current domain

Answer: A

Explanation:
The net command in Windows is a legacy tool for managing users, groups, and network resources. The subcommand net localgroup <groupname> displays information about a specified local group on the machine where it's run. Specifically:
net localgroup administrators lists all members (users and groups) of the local Administrators group on the current computer.
The local Administrators group grants elevated privileges (e.g., installing software, modifying system files) on that machine only, not domain-wide.
Output Example:
Alias name administrators
Comment Administrators have complete and unrestricted access to the computer Members
------------------------------------------------------------------------------- Administrator Domain Admins The command completed successfully.
Technical Details:
Local groups are stored in the Security Accounts Manager (SAM) database (e.g., C:WindowsSystem32configSAM).
This differs from domain groups (e.g., Domain Admins), managed via Active Directory.
Security Implications: Enumerating local admins is a reconnaissance step in penetration testing (e.g., to escalate privileges). CNSP likely covers this command for auditing and securing Windows systems.
Why other options are incorrect:
A . List domain admin users for the current domain: This requires net group "Domain Admins" /domain, which queries the domain controller, not the local SAM. net localgroup is strictly local.
Real-World Context: Attackers use this command post-compromise (e.g., via PsExec) to identify privilege escalation targets.

NEW QUESTION # 42
What is the response from an open UDP port which is behind a firewall (port is open on the firewall)?

A. ICMP message showing Port Unreachable
B. A FIN Packet
C. No response
D. A SYN Packet

Answer: C

Explanation:
UDP (User Datagram Protocol), per RFC 768, is connectionless, lacking TCP's handshake or acknowledgment mechanisms. When a UDP packet reaches a port:
Closed Port: The host typically sends an ICMP "Destination Port Unreachable" (Type 3, Code 3) unless suppressed (e.g., by firewall or OS settings).
Open Port: If a service is listening (e.g., DNS on 53/UDP), it processes the packet but doesn't inherently reply unless the application protocol requires it (e.g., DNS sends a response).
Scenario: An open UDP port behind a firewall, with the firewall rule allowing traffic (e.g., permit udp any host 10.0.0.1 eq 123). The packet reaches the service, but UDP itself doesn't mandate a response. Most services (e.g., NTP, SNMP) only reply if the packet matches an expected request. In this question's generic context (no specific service), no response is the default, as the firewall permits the packet, and the open port silently accepts it without feedback.
Security Implications: This silence makes UDP ports harder to scan (e.g., Nmap assumes "open|filtered" for no response), but exposed open ports risk amplification attacks (e.g., DNS reflection). CNSP likely contrasts UDP's behavior with TCP for firewall rule crafting.
Why other options are incorrect:
A . ICMP message showing Port Unreachable: Occurs for closed ports, not open ones, unless the service explicitly rejects the packet (rare).
C . A SYN Packet: SYN is TCP-specific (handshake initiation), irrelevant to UDP.
D . A FIN Packet: FIN is TCP-specific (connection closure), not UDP.
Real-World Context: Testing UDP 53 (DNS) with dig @8.8.8.8 +udp yields a response, but generic UDP probes (e.g., nc -u) often get silence.

NEW QUESTION # 43
......

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