UPDATED [2026] Pass The SecOps Group CNSP Exam in First Attempt Guaranteed
Pass CNSP Exam Latest Practice Questions
The SecOps Group CNSP Exam Syllabus Topics:
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NEW QUESTION # 26
On a Microsoft Windows Operating System, what does the following command do?
net localgroup administrators
- A. List domain admin users for the current domain
- B. Displays the local administrators group on the computer
Answer: B
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:\Windows\System32\config\SAM).
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 # 27
Which one of the following services is not a UDP-based protocol?
- A. SNMP
- B. NTP
- C. SSH
- D. IKE
Answer: C
Explanation:
Protocols are defined by their transport layer usage (TCP or UDP), impacting their security and performance characteristics.
Why D is correct: SSH (Secure Shell) uses TCP (port 22) for reliable, connection-oriented communication, unlike the UDP-based options. CNSP contrasts TCP and UDP protocol security.
Why other options are incorrect:
A: SNMP uses UDP (ports 161, 162) for lightweight network management.
B: NTP uses UDP (port 123) for time synchronization.
C: IKE (IPsec key exchange) uses UDP (ports 500, 4500).
NEW QUESTION # 28
The Active Directory database file stores the data and schema information for the Active Directory database on domain controllers in Microsoft Windows operating systems. Which of the following file is the Active Directory database file?
- A. NTDS.DIT
- B. MSAD.MDB
- C. NTDS.MDB
- D. NTDS.DAT
Answer: A
Explanation:
The Active Directory (AD) database on Windows domain controllers contains critical directory information, stored in a specific file format.
Why D is correct: The NTDS.DIT file (NT Directory Services Directory Information Tree) is the Active Directory database file, located in C:\Windows\NTDS\ on domain controllers. It stores all AD objects (users, groups, computers) and schema data in a hierarchical structure. CNSP identifies NTDS.DIT as the key file for AD data extraction in security audits.
Why other options are incorrect:
A . NTDS.DAT: Not a valid AD database file; may be a confusion with other system files.
B . NTDS.MDB: Refers to an older Microsoft Access database format, not used for AD.
C . MSAD.MDB: Not a recognized file for AD; likely a misnomer.
NEW QUESTION # 29
Which of the following services do not encrypt its traffic by default?
- A. DNS
- B. SSH
- C. FTPS
- D. All of these
Answer: A
Explanation:
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.
NEW QUESTION # 30
What ports does an MSSQL server typically use?
- A. 1433/TCP, 1434/UDP, and 1434/TCP
- B. 1533/TCP, 1434/UDP, and 2434/TCP
- C. 1433/TCP, 2433/UDP, and 1434/TCP
- D. 1433/TCP, 2433/UDP, and 3433/TCP
Answer: A
Explanation:
Microsoft SQL Server (MSSQL) relies on specific ports for its core services, as defined by Microsoft and registered with IANA:
1433/TCP: The default port for the SQL Server Database Engine. Clients connect here for querying databases (e.g., via ODBC or JDBC). It's a well-known port, making it a frequent target for attacks if exposed.
1434/UDP: Used by the SQL Server Browser Service, which listens for incoming requests and redirects clients to the correct port/instance (especially for named instances). It's critical for discovering dynamic ports when 1433 isn't used.
1434/TCP: Less commonly highlighted but used in some configurations, such as dedicated admin connections (DAC) or when the Browser Service responds over TCP for specific instances. While 1433/TCP is the primary engine port, 1434/TCP can be involved in multi-instance setups.
Technical Details:
Ports can be customized (e.g., via SQL Server Configuration Manager), but these are defaults.
Named instances often use dynamic ports (allocated from the ephemeral range), with the Browser Service (1434/UDP) guiding clients to them.
Firewalls must allow these ports for MSSQL to function externally, posing risks if not secured (e.g., brute-force attacks on 1433/TCP).
Security Implications: CNSP likely covers MSSQL port security, as vulnerabilities like SQL Slammer (2003) exploited 1434/UDP misconfigurations. Hardening includes restricting access, changing defaults, and monitoring traffic.
Why other options are incorrect:
A . 1433/TCP, 2433/UDP, 3433/TCP: 2433/UDP and 3433/TCP are not MSSQL standards; they're likely typos or unrelated ports.
C . 1433/TCP, 2433/UDP, 1434/TCP: 2433/UDP is incorrect; 1434/UDP is the Browser Service port.
D . 1533/TCP, 1434/UDP, 2434/TCP: 1533/TCP and 2434/TCP aren't associated with MSSQL; they deviate from documented defaults.
Real-World Context: Tools like netstat -an | find "1433" on Windows confirm MSSQL's port usage during audits.
NEW QUESTION # 31
Which one of the following is a phishing email?
- A. None of the above
- B. Only B
- C. Both A and B
- D. Only A
Answer: B
Explanation:
The screenshot shows an email labeled "B" with the subject "Verify your email address" purportedly from Apple. To determine if this is a phishing email, we need to analyze its content and characteristics against common phishing indicators as outlined in CNSP documentation. Since option A is not provided in the screenshot, we will evaluate email B and infer the context for A.
Analysis of Email B:
Sender and Branding: The email claims to be from "Apple Support" and includes an Apple logo, which is a common tactic to establish trust. However, phishing emails often impersonate legitimate brands like Apple to deceive users.
Subject and Content: The subject "Verify your email address" and the body requesting the user to verify their email by clicking a link ("Verify Your Email") are typical of phishing attempts. Legitimate companies like Apple may send verification emails, but the tone and context here raise suspicion.
Link Presence: The email contains a clickable link ("Verify Your Email") that is purportedly for email verification. The screenshot does not show the URL, but phishing emails often include malicious links that lead to fake login pages to steal credentials. CNSP emphasizes that unsolicited requests to click links for verification are a red flag.
Urgency and Vague Instructions: The email includes a statement, "If you did not make this change or believe an unauthorized person has accessed your account, click here to cancel and secure your account." This creates a sense of urgency, a common phishing tactic to prompt immediate action without critical thinking.
Generic Greeting: The email starts with "Dear User," a generic greeting often used in phishing emails. Legitimate companies like Apple typically personalize emails with the user's name.
Suspicious Elements: The email mentions "your Apple ID ([email protected])," which is a placeholder rather than a specific email address, further indicating a mass phishing campaign rather than a targeted, legitimate communication.
Phishing Indicators (per CNSP):
CNSP documentation on phishing identification lists several red flags:
Unsolicited requests for verification or account updates.
Generic greetings (e.g., "Dear User" instead of a personalized name).
Presence of links that may lead to malicious sites (not verifiable in the screenshot but implied).
Urgency or threats (e.g., "click here to cancel and secure your account").
Impersonation of trusted brands (e.g., Apple).
Email B exhibits multiple indicators: the generic greeting, unsolicited verification request, urgent call to action, and impersonation of Apple.
Option A Context:
Since the screenshot only shows email B, and the correct answer is "Only B," we can infer that email A (not shown) does not exhibit phishing characteristics. For example, A might be a legitimate email from Apple with proper personalization, no suspicious links, or a different context (e.g., a purchase confirmation rather than a verification request).
Evaluation of Options:
1. Only A: Incorrect, as email A is not shown, and the correct answer indicates B as the phishing email.
2. Only B: Correct. Email B shows clear phishing characteristics, such as impersonation, a generic greeting, an unsolicited verification link, and urgency, aligning with CNSP's phishing criteria.
3. Both A and B: Incorrect, as A is implied to be non-phishing based on the correct answer.
4. None of the above: Incorrect, as B is a phishing email.
Conclusion: Email B is a phishing email due to its impersonation of Apple, generic greeting, unsolicited verification request with a link, and use of urgency to prompt action. Since A is not shown but implied to be non-phishing, the correct answer is "Only B."
NEW QUESTION # 32
How many octets are there in an IPv6 address?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
An IPv6 address, defined in RFC 4291, is a 128-bit address designed to replace IPv4's 32-bit scheme, vastly expanding address space (2^128 vs. 2^32). An octet is 8 bits (1 byte). To calculate octets in IPv6:
128 bits ÷ 8 bits/octet = 16 octets.
Representation:
IPv6 is written as eight 16-bit hexadecimal blocks (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334), separated by colons.
Each block is 16 bits (2 bytes), so 8 blocks = 16 octets.
Contrast with IPv4 (e.g., 192.168.0.1), which has 4 octets (32 bits).
Technical Note: Your original input flagged this question's phrasing as potentially misleading, suggesting "octets" is an IPv4 term, while IPv6 uses "16-bit groups" or "hextets." While technically accurate (RFC 4291 uses "16-bit blocks"), "octets" remains a common, if informal, term in security contexts for byte-wise analysis (e.g., packet crafting). CNSP might use "octets" to test byte-level understanding, though "groups" is more precise for IPv6. Here, 16 octets (128 bits) is correct either way.
Security Implications: IPv6's larger address space complicates scanning (e.g., Nmap struggles with 2^128 possibilities) but introduces risks like misconfigured Neighbor Discovery Protocol (NDP). Understanding its structure aids in firewall rules and IDS signatures.
Why other options are incorrect:
B . 32: Implies 256 bits (32 × 8), far exceeding IPv6's 128-bit design.
C . 64: Suggests 512 bits (64 × 8), unrelated to IPv6 or any IP standard.
D . 128: Misinterprets octets as bits; 128 bits = 16 octets, not 128 octets.
Real-World Context: IPv6 packet analysis (e.g., Wireshark) breaks addresses into 16 octets for raw data inspection.
NEW QUESTION # 33
What ports can be queried to perform a DNS zone transfer?
- A. None of the above
- B. 53/UDP
- C. Both 1 and 2
- D. 53/TCP
Answer: D
Explanation:
A DNS zone transfer involves replicating the DNS zone data (e.g., all records for a domain) from a primary to a secondary DNS server, requiring a reliable transport mechanism.
Why A is correct: DNS zone transfers use TCP port 53 because TCP ensures reliable, ordered delivery of data, which is critical for transferring large zone files. CNSP notes that TCP is the standard protocol for zone transfers (e.g., AXFR requests), as specified in RFC 5936.
Why other options are incorrect:
B . 53/UDP: UDP port 53 is used for standard DNS queries and responses due to its speed and lower overhead, but it is not suitable for zone transfers, which require reliability over speed.
C . Both 1 and 2: This is incorrect because zone transfers are exclusively TCP-based, not UDP-based.
D . None of the above: Incorrect, as 53/TCP is the correct port for DNS zone transfers.
NEW QUESTION # 34
What is the response from a closed TCP port which is behind a firewall?
- A. A FIN and an ACK packet
- B. RST and an ACK packet
- C. No response
- D. A SYN and an ACK packet
Answer: C
NEW QUESTION # 35
You are performing a security audit on a company's network infrastructure and have discovered the SNMP community string set to the default value of "public" on several devices. What security risks could this pose, and how might you exploit it?
- A. None of the above.
- B. The potential risk is that an attacker could use the SNMP protocol to gather sensitive information about the devices. You might use a tool like Snmpwalk to query the devices for information.
- C. Both A and B.
- D. The potential risk is that an attacker could use the SNMP protocol to modify the devices' configuration settings. You might use a tool like Snmpset to change the settings.
Answer: B
Explanation:
SNMP (Simple Network Management Protocol) uses community strings as a basic form of authentication. The default read-only community string "public" is widely known, and if left unchanged, it exposes devices to unauthorized access. The primary risk with "public" is information disclosure, as it typically grants read-only access, allowing attackers to gather sensitive data (e.g., device configurations, network topology) without altering settings.
Why A is correct: With the "public" string, an attacker can use tools like snmpwalk to enumerate device details (e.g., system uptime, interfaces, or software versions) via SNMP queries. This aligns with CNSP's focus on reconnaissance risks during security audits, emphasizing the danger of default credentials enabling passive data collection.
Why other options are incorrect:
B: While modifying settings is a risk with SNMP, the default "public" string is typically read-only. Changing configurations requires a read-write community string (e.g., "private"), which isn't implied here. Thus, snmpset would not work with "public" alone.
C: Since B is incorrect in this context, C (both A and B) cannot be the answer.
D: The risk in A is valid, so "none of the above" is incorrect.
NEW QUESTION # 36
On a Microsoft Windows operating system, what does the following command do?
net localgroup Sales Sales_domain /add
- A. Add a domain group to the local group Sales
- B. Add a local group Sales to the domain group
- C. Add a new user to the local group Sales
- D. Display the list of the users of a local group Sales
Answer: A
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 # 37
Which is the correct command to change the MAC address for an Ethernet adapter in a Unix-based system?
- A. ifconfig eth0 hdwr ether AA:BB:CC:DD:EE:FF
- B. ifconfig eth0 hwr ether AA:BB:CC:DD:EE:FF
- C. ifconfig eth0 hdw ether AA:BB:CC:DD:EE:FF
- D. ifconfig eth0 hw ether AA:BB:CC:DD:EE:FF
Answer: D
Explanation:
In Unix-based systems (e.g., Linux), the ifconfig command is historically used to configure network interfaces, including changing the Media Access Control (MAC) address of an Ethernet adapter. The correct syntax to set a new MAC address for an interface like eth0 is ifconfig eth0 hw ether AA:BB:CC:DD:EE:FF, where hw specifies the hardware address type (ether for Ethernet), followed by the new MAC address in colon-separated hexadecimal format.
Why A is correct: The hw ether argument is the standard and correct syntax recognized by ifconfig to modify the MAC address. This command temporarily changes the MAC address until the system reboots or the interface is reset, assuming the user has sufficient privileges (e.g., root). CNSP documentation on network configuration and spoofing techniques validates this syntax for testing network security controls.
Why other options are incorrect:
B: hdw is not a valid argument; it's a typographical error and unrecognized by ifconfig.
C: hdwr is similarly invalid; no such shorthand exists in the command structure.
D: hwr is incorrect; the full keyword hw followed by ether is required for proper parsing.
NEW QUESTION # 38
The application is showing a TLS error message as a result of a website administrator failing to timely renew the TLS certificate. But upon deeper analysis, it appears that the problem is brought on by the expiration of the TLS certificate. Which of the following statements is correct?
- A. The communication between the browser and the server is still over TLS.
- B. The communication between the browser and the server is now no longer over TLS.
Answer: B
Explanation:
TLS (Transport Layer Security) secures communication (e.g., HTTPS) using certificates, per RFC 8446. A certificate includes:
Validity Period: Start and end dates (e.g., "Not After: March 8, 2025").
Purpose: Authenticates the server and encrypts the session.
Scenario: An expired TLS certificate (e.g., past "Not After" date). Modern browsers (e.g., Chrome, Firefox) validate certificates during the handshake:
ClientHello: Browser initiates TLS.
ServerHello: Server sends its certificate.
Validation: Browser checks expiration, CA trust, etc.
If expired, browsers reject the handshake, displaying errors (e.g., "NET::ERR_CERT_DATE_INVALID"). No session key is negotiated, and communication doesn't proceed over TLS. Users may bypass warnings (e.g., "Advanced > Proceed"), but this is unencrypted or uses a fallback (not standard TLS), breaking security guarantees.
Security Implications: Expired certificates expose sites to MITM attacks, as trust is lost. CNSP likely emphasizes certificate management (e.g., automation with Let's Encrypt) to avoid this.
Why other options are incorrect:
B . The communication is still over TLS: False; an expired certificate halts the TLS handshake in compliant browsers. Legacy systems might negotiate insecurely, but this isn't "TLS" per standards.
Real-World Context: The 2019 Equifax breach partially stemmed from expired certificates missing vulnerabilities.
NEW QUESTION # 39
Which SMB (Server Message Block) network protocol version introduced support for encrypting SMB traffic?
- A. SMBv2
- B. None of the above
- C. SMBv1
- D. SMBv3
Answer: D
Explanation:
The SMB protocol, used for file and printer sharing, has evolved across versions, with significant security enhancements in later iterations.
Why C is correct: SMBv3, introduced with Windows 8 and Server 2012, added native support for encrypting SMB traffic. This feature uses AES-CCM encryption to protect data in transit, addressing vulnerabilities in earlier versions. CNSP notes SMBv3's encryption as a critical security improvement.
Why other options are incorrect:
A . SMBv1: Lacks encryption support and is considered insecure, often disabled due to vulnerabilities like WannaCry exploitation.
B . SMBv2: Introduces performance improvements but does not support encryption natively.
D . None of the above: Incorrect, as SMBv3 is the version that introduced encryption.
NEW QUESTION # 40
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. myprogram
- C. myfile
- D. All of the above
Answer: B
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 # 41
Where are the password hashes stored in a Microsoft Windows 64-bit system?
- A. C:\Windows\System32\config\SAM
- B. C:\Windows\System64\config\SAM
- C. C:\System64\config\SAM
- D. C:\Windows\config\System32\SAM
Answer: A
Explanation:
Windows stores password hashes in the SAM (Security Account Manager) file, with a consistent location across 32-bit and 64-bit systems.
Why B is correct: The SAM file resides at C:\Windows\System32\config\SAM, locked during system operation for security. CNSP notes this for credential extraction risks.
Why other options are incorrect:
A: System64 does not exist; System32 is used even on 64-bit systems.
C: C:\System64 is invalid; the path starts with Windows.
D: config\System32 reverses the correct directory structure.
NEW QUESTION # 42
How many usable TCP/UDP ports are there?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) port numbers are defined by a 16-bit field in their packet headers, as specified in RFC 793 (TCP) and RFC 768 (UDP). A 16-bit integer ranges from 0 to 65,535, yielding a total of 65,536 possible ports (2^16). However, port 0 is universally reserved across both protocols and is not considered "usable" for standard network communication. According to the Internet Assigned Numbers Authority (IANA), port 0 is designated for special purposes, such as indicating an invalid or dynamic port assignment in some systems (e.g., when a client requests an ephemeral port). In practice, operating systems and applications avoid binding to port 0 for listening services, and it's often used in error conditions or as a placeholder in protocol implementations (e.g., socket programming).
Thus, the usable port range spans from 1 to 65,535, totaling 65,535 ports. These ports are categorized by IANA into:
Well-Known Ports (0-1023): Reserved for system services (e.g., HTTP on 80/TCP). Note that 0 is still reserved within this range.
Registered Ports (1024-49151): Assigned to user applications.
Dynamic/Ephemeral Ports (49152-65535): Used temporarily by clients.
From a security perspective, understanding the usable port count is critical for firewall configuration, port scanning (e.g., with Nmap), and detecting anomalies (e.g., services binding to unexpected ports). Misconfiguring a system to use port 0 could lead to protocol errors or expose vulnerabilities, though it's rare. The CNSP curriculum likely emphasizes this distinction to ensure practitioners can accurately scope network security assessments.
Why other options are incorrect:
A . 65536: This reflects the total number of possible ports (0-65535), but it includes the reserved port 0, which isn't usable for typical TCP/UDP communication. In security contexts, including port 0 in a count could lead to misconfigured rules or scanning errors.
C . 63535: This is an arbitrary number with no basis in the 16-bit port structure. It might stem from a typo or misunderstanding (e.g., subtracting 2000 from 65535 incorrectly), but it's invalid.
D . 65335: Similarly, this lacks grounding in protocol standards. It could be a miscalculation (e.g., subtracting 200 from 65535), but it doesn't align with TCP/UDP specifications.
Real-World Context: In penetration testing, tools like Nmap scan ports 1-65535 by default, excluding 0 unless explicitly specified (e.g., -p0-65535), reinforcing that 65,535 is the practical usable count.
NEW QUESTION # 43
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