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The SecOps Group Certified Network Security Practitioner Sample Questions (Q21-Q26):

NEW QUESTION # 21
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. 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.
B. None of the above.
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: A

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 # 22
What types of attacks are phishing, spear phishing, vishing, scareware, and watering hole?

A. Probes
B. Insider threats
C. Ransomware
D. Social engineering

Answer: D

Explanation:
Social engineering exploits human psychology to manipulate individuals into divulging sensitive information, granting access, or performing actions that compromise security. Unlike technical exploits, it targets the "human factor," often bypassing technical defenses. The listed attacks fit this category:
Phishing: Mass, untargeted emails (e.g., fake bank alerts) trick users into entering credentials on spoofed sites. Uses tactics like urgency or trust (e.g., typosquatting domains).
Spear Phishing: Targeted phishing against specific individuals/organizations (e.g., CEO fraud), leveraging reconnaissance (e.g., LinkedIn data) for credibility.
Vishing (Voice Phishing): Phone-based attacks (e.g., fake tech support calls) extract info via verbal manipulation. Often spoofs caller ID.
Scareware: Fake alerts (e.g., "Your PC is infected!" pop-ups) scare users into installing malware or paying for bogus fixes. Exploits fear and urgency.
Watering Hole: Compromises trusted websites frequented by a target group (e.g., industry forums), infecting visitors via drive-by downloads. Relies on habitual trust.
Technical Details:
Delivery: Email (phishing), VoIP (vishing), web (watering hole/scareware).
Payloads: Credential theft, malware (e.g., trojans), or financial fraud.
Mitigation: User training, email filters (e.g., DMARC), endpoint protection.
Security Implications: Social engineering accounts for ~90% of breaches (e.g., Verizon DBIR 2023), as it exploits unpatchable human error. CNSP likely emphasizes awareness (e.g., phishing simulations) and layered defenses (e.g., MFA).
Why other options are incorrect:
A . Probes: Reconnaissance techniques (e.g., port scanning) to identify vulnerabilities, not manipulation-based like these attacks.
B . Insider threats: Malicious actions by authorized users (e.g., data theft by employees), not external human-targeting tactics.
D . Ransomware: A malware type (e.g., WannaCry) that encrypts data for ransom, not a manipulation method-though phishing often delivers it.
Real-World Context: The 2016 DNC hack used spear phishing to steal credentials, showing social engineering's potency.

NEW QUESTION # 23
WannaCry, an attack, spread throughout the world in May 2017 using machines running on outdated Microsoft operating systems. What is WannaCry?

A. Ransomware
B. Malware

Answer: A

Explanation:
WannaCry is a ransomware attack that erupted in May 2017, infecting over 200,000 systems across 150 countries. It exploited the EternalBlue vulnerability (MS17-010) in Microsoft Windows SMBv1, targeting unpatched systems (e.g., Windows XP, Server 2003). Developed by the NSA and leaked by the Shadow Brokers, EternalBlue allowed remote code execution.
Ransomware Mechanics:
Encryption: WannaCry used RSA-2048 and AES-128 to encrypt files, appending extensions like .wcry.
Ransom Demand: Displayed a message demanding $300-$600 in Bitcoin, leveraging a hardcoded wallet.
Worm Propagation: Self-replicated via SMB, scanning internal and external networks, unlike typical ransomware requiring user interaction (e.g., phishing).
Malware Context: While WannaCry is malware (malicious software), "ransomware" is the precise subcategory, distinguishing it from viruses, trojans, or spyware. Malware is a broad term encompassing any harmful code; ransomware specifically encrypts data for extortion. CNSP likely classifies WannaCry as ransomware to focus on its payload and mitigation (e.g., patching, backups).
Why other options are incorrect:
B . Malware: Correct but overly generic. WannaCry's defining trait is ransomware behavior, not just maliciousness. Specificity matters in security taxonomy for threat response (e.g., NIST IR 8019).
Real-World Context: WannaCry crippled NHS hospitals, highlighting patch management's criticality. A kill switch (a domain sinkhole) halted it, but variants persist.

NEW QUESTION # 24
What ports does an MSSQL server typically use?

A. 1533/TCP, 1434/UDP, and 2434/TCP
B. 1433/TCP, 1434/UDP, and 1434/TCP
C. 1433/TCP, 2433/UDP, and 3433/TCP
D. 1433/TCP, 2433/UDP, and 1434/TCP

Answer: B

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 # 25
Which of the following is not a DDoS attack?

A. NTP Amplification
B. SYN Flood
C. UDP Flood
D. Brute Force

Answer: D

Explanation:
DDoS (Distributed Denial of Service) attacks aim to overwhelm a target's resources with excessive traffic, disrupting availability, whereas other attack types target different goals.
Why D is correct: Brute force attacks focus on guessing credentials (e.g., passwords) to gain unauthorized access, not on denying service. CNSP classifies it as an authentication attack, not a DDoS method.
Why other options are incorrect:
A: SYN Flood exhausts TCP connection resources, a classic DDoS attack.
B: NTP Amplification leverages amplified responses to flood targets, a DDoS technique.
C: UDP Flood overwhelms a system with UDP packets, another DDoS method.

NEW QUESTION # 26
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Test CNSP Tutorials | CNSP Testking Exam Questions

The SecOps Group CNSP Testking Exam Questions, CNSP Latest Demo

The SecOps Group Certified Network Security Practitioner Sample Questions (Q21-Q26):

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