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The SecOps Group CNSP Exam Syllabus Topics:

Topic
Details

Topic 1

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

Topic 2

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 3

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 4

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.

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

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 7

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 8

Social Engineering attacks: This section of the exam measures the skills of Security Analysts and addresses the human element of security breaches. It describes common tactics used to manipulate users, emphasizes awareness training, and highlights how social engineering can bypass technical safeguards.

Topic 9

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 10

Testing Network Services

Topic 11

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 12

Password Storage: This section of the exam measures the skills of Network Engineers and addresses safe handling of user credentials. It explains how hashing, salting, and secure storage methods can mitigate risks associated with password disclosure or theft.

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

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 15

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.

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The SecOps Group Certified Network Security Practitioner Sample Questions (Q26-Q31):

NEW QUESTION # 26
An 'EICAR' file can be used to?

A. Test the encryption algorithms
B. Test the response of an antivirus program

Answer: B

Explanation:
The EICAR test file is a standardized tool in security testing, designed for a specific purpose.
Why A is correct: The EICAR file (a 68-byte string) triggers antivirus detection without harm, testing response capabilities. CNSP recommends it for AV validation.
Why B is incorrect: It has no role in testing encryption; it's solely for AV functionality.

NEW QUESTION # 27
What is the response from a closed TCP port which is behind a firewall?

A. A SYN and an ACK packet
B. No response
C. RST and an ACK packet
D. A FIN and an ACK packet

Answer: B

Explanation:
TCP (Transmission Control Protocol) uses a three-way handshake (SYN, SYN-ACK, ACK) to establish connections, as per RFC 793. When a client sends a SYN packet to a port:
Open Port: The server responds with SYN-ACK.
Closed Port (no firewall): The server sends an RST (Reset) packet, often with ACK, to terminate the attempt immediately.
However, when a firewall is present, its configuration dictates the response. Modern firewalls typically operate in stealth mode, using a "drop" rule for closed ports rather than a "reject" rule:
Drop: Silently discards the packet without replying, resulting in no response. The client experiences a timeout (e.g., 30 seconds), as no feedback is provided.
Reject: Sends an RST or ICMP "Port Unreachable," but this is less common for security reasons, as it confirms the firewall's presence.
For a closed TCP port behind a firewall, "no response" (drop) is the standard behavior in secure configurations, minimizing information leakage to attackers. This aligns with CNSP's focus on firewall best practices to obscure network topology during port scanning (e.g., with Nmap).
Why other options are incorrect:
A . A FIN and an ACK packet: FIN-ACK is used to close an established TCP connection gracefully (e.g., after data transfer), not to respond to an initial SYN on a closed port.
B . RST and an ACK packet: RST-ACK is the host's response to a closed port without a firewall. A firewall's drop rule overrides this by silently discarding the packet.
C . A SYN and an ACK packet: SYN-ACK indicates an open port accepting a connection, the opposite of a closed port scenario.
Real-World Context: Tools like Nmap interpret "no response" as "filtered" (firewall likely present) vs. "closed" (RST received), aiding in firewall detection.

NEW QUESTION # 28
Where are the password hashes stored in the Linux file system?

A. /usr/bin/shadow
B. /etc/password
C. /etc/shadow
D. /etc/passwd

Answer: C

Explanation:
In Linux, password hashes are stored in a secure file to protect user authentication data. The evolution of Linux security practices moved password storage from plaintext or weakly protected files to a more secure location.
Why C is correct: The /etc/shadow file is the standard location for storing password hashes in modern Linux systems. This file is readable only by the root user, enhancing security by restricting access. It contains encrypted password hashes (typically using algorithms like SHA-512), along with user details such as password expiration policies. CNSP documentation on Linux security emphasizes /etc/shadow as the authoritative source for password hashes, replacing older methods.
Why other options are incorrect:
A . /etc/passwd: Historically, /etc/passwd stored passwords in plaintext or weakly hashed forms (e.g., using DES), but modern systems use it only for user account information (e.g., UID, GID, home directory) and reference /etc/shadow for hashes.
B . /etc/password: This is not a valid file in the Linux file system; it appears to be a typographical error or misunderstanding, with no recognized role in password storage.
D . /usr/bin/shadow: /usr/bin contains executable binaries, not configuration or data files like password hashes. /etc/shadow is the correct path.

NEW QUESTION # 29
The Management Information Base (MIB) is a collection of object groups that is managed by which service?

A. SMTP
B. SNMP
C. TACACS
D. NTP

Answer: B

Explanation:
The Management Information Base (MIB) is a structured database defining manageable objects (e.g., CPU usage, interface status) in a network device. It's part of the SNMP (Simple Network Management Protocol) framework, per RFC 1157, used for monitoring and managing network devices (e.g., routers, switches).
SNMP Mechanics:
MIB Structure: Hierarchical, with Object Identifiers (OIDs) like 1.3.6.1.2.1.1.1.0 (sysDescr).
Ports: UDP 161 (agent), 162 (traps).
Operation: Agents expose MIB data; managers (e.g., Nagios) query it via GET/SET commands.
MIB files (e.g., IF-MIB, HOST-RESOURCES-MIB) are vendor-specific or standardized, parsed by SNMP tools (e.g., snmpwalk). CNSP likely covers SNMP for network monitoring and securing it against enumeration (e.g., weak community strings like "public").
Why other options are incorrect:
A . SMTP (Simple Mail Transfer Protocol): Email delivery (TCP 25), unrelated to MIB or device management.
C . NTP (Network Time Protocol): Time synchronization (UDP 123), not MIB-related.
D . TACACS (Terminal Access Controller Access-Control System): Authentication/authorization (TCP 49), not MIB management.
Real-World Context: SNMP misconfiguration led to the 2018 Cisco switch exploits via exposed MIB data.

NEW QUESTION # 30
What is the response from a closed TCP port which is not behind a firewall?

A. A SYN and an ACK packet
B. A RST and an ACK packet
C. A FIN and an ACK packet
D. ICMP message showing Port Unreachable

Answer: B

Explanation:
TCP uses a structured handshake, and its response to a connection attempt on a closed port follows a specific protocol when unobstructed by a firewall.
Why C is correct: A closed TCP port responds with a RST (Reset) and ACK (Acknowledgment) packet to terminate the connection attempt immediately. CNSP highlights this as a key scanning indicator.
Why other options are incorrect:
A: ICMP Port Unreachable is for UDP, not TCP.
B: FIN/ACK is for closing active connections, not rejecting new ones.
D: SYN/ACK indicates an open port during the TCP handshake.

NEW QUESTION # 31
......

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