TENABLE VULNERABILITY MANAGEMENT PROFESSIONAL
EXAM| ACCURATE REAL EXAM QUESTIONS
WITH VERIFIED ANSWERS AND RATIONALES /STUDY GUIDE +
250 QUESTIONS | LATEST UPDATE
SECTION 1: TENABLE ARCHITECTURE AND COMPONENTS (Questions 1–25)
1. Which authentication protocol is primarily used for Windows credentialed
scans in Tenable.io?
A) SSH
B) SMB/WMI
C) SNMP
D) Kerberos only
Answer: B
Rationale: Tenable uses SMB (TCP 445/139) and WMI (Windows Management
Instrumentation) APIs to authenticate to Windows hosts for registry and patch
enumeration. SSH is for Unix/Linux; SNMP provides only limited inventory;
Kerberos underpins domain authentication but is not the primary scan transport.
2. What is the primary role of the Nessus scanning engine in Tenable's
architecture?
A) To aggregate scan results into dashboards
B) To execute vulnerability checks and gather host information
C) To manage user authentication
D) To act as a firewall bypass proxy
Answer: B
Rationale: Nessus is the core vulnerability scanning engine. It executes plugins,
probes services, authenticates to hosts, and returns raw data to the Tenable
platform. Dashboards are managed by Tenable.io or Tenable.sc.
3. Which component is Tenable's on-premises, continuous monitoring and
vulnerability management solution?
A) Tenable.io
1
,B) Tenable.sc
C) Nessus Professional
D) Nessus Agent
Answer: B
Rationale: Tenable.sc (formerly SecurityCenter) is the on-premises solution for
organizations that require air-gapped or on-premises deployment. Tenable.io is
cloud-based; Nessus Pro is a standalone scanner; the agent is a lightweight
endpoint sensor.
4. In a standard Tenable.sc deployment, what is the purpose of the "Repository"?
A) To store downloaded plugin updates
B) To logically separate scan results for data isolation and RBAC
C) To host the web interface
D) To proxy scan requests to external networks
Answer: B
Rationale: Repositories are logical containers for scan results. They allow role-
based access control (RBAC) so that different users or groups can only see data
from specific repositories. Plugins are stored in the plugin feed repository, not the
same concept.
5. Which Tenable product is specifically designed for industrial control systems
(ICS) and OT environments?
A) Nessus
B) Tenable.ot
C) Tenable.sc
D) Tenable.io Web App Scanning
Answer: B
Rationale: Tenable.ot is the dedicated product for OT/ICS environments, with
non-intrusive and passive monitoring protocols. Nessus can scan IT, but
Tenable.ot is specialized for industrial protocols (Modbus, DNP3, etc.).
6. Tenable.io uses a cloud-based architecture. What is a "Scan Zone"?
A) A geographical region where assets are physically located
2
,B) A group of scanners managed by a Tenable.io sensor to scan remote networks
C) A security group for firewall rules
D) A compliance framework template
Answer: B
Rationale: Scan Zones in Tenable.io allow you to deploy scanners (linked to a
zone) to scan networks that are isolated from the cloud (e.g., private subnets).
This facilitates scanning of internal networks without exposing them directly to
the internet.
7. What is the function of the Tenable Nessus Network Monitor (NNM)?
A) It performs active scanning of all network ports
B) It passively monitors network traffic to identify vulnerabilities and assets
C) It acts as a proxy for authenticated scans
D) It manages TLS certificates for Tenable.sc
Answer: B
Rationale: NNM is a passive monitoring tool that analyzes network traffic (packet
inspection) to identify assets, services, and vulnerabilities without active scanning.
This is useful for monitoring sensitive OT or high-availability environments.
8. In a high-availability Tenable.sc deployment, which component is redundant?
A) The SecurityCenter web interface
B) The Nessus scanner
C) The repository database
D) All of the above
Answer: D
Rationale: High-availability configurations often replicate the web interface,
scanners, and repository databases to ensure continuous operation and failover.
9. Which protocol is used for Tenable agents to communicate with Tenable.io or
Tenable.sc?
A) TCP 443 (HTTPS) – encrypted outbound communication
B) TCP 22 (SSH)
C) TCP 3389 (RDP)
3
, D) UDP 161 (SNMP)
Answer: A
Rationale: Tenable agents establish a persistent outbound HTTPS (TCP 443)
connection to Tenable.io or Tenable.sc. This ensures secure, encrypted
communication and avoids the need for inbound firewall rules.
10. What is the difference between Tenable.io Vulnerability Management and
Tenable.io Web App Scanning?
A) Web App Scanning is a separate product; Vulnerability Management focuses
on hosts and infrastructure.
B) Web App Scanning is included free with all subscriptions.
C) There is no difference.
D) Web App Scanning uses SNMP only.
Answer: A
Rationale: Tenable.io VM scans hosts, operating systems, and network services.
Tenable.io WAS is a dedicated module for scanning web applications (including
APIs and OWASP Top 10 vulnerabilities) with its own scan templates and
credentials.
11. Which component stores vulnerability findings and historical scan data in
Tenable.sc?
A) The Nessus scanner
B) The MySQL (or PostgreSQL) repository database
C) The Apache web server
D) The LDAP directory server
Answer: B
Rationale: The repository in Tenable.sc is a relational database
(MariaDB/PostgreSQL) that stores all scan results, asset data, and historical
records. The scanner sends data to the repository for storage and analysis.
12. A user reports that a newly deployed Nessus scanner does not appear in
Tenable.io. What is the most likely reason?
A) The scanner is not linked using the activation code generated in Tenable.io.
4
EXAM| ACCURATE REAL EXAM QUESTIONS
WITH VERIFIED ANSWERS AND RATIONALES /STUDY GUIDE +
250 QUESTIONS | LATEST UPDATE
SECTION 1: TENABLE ARCHITECTURE AND COMPONENTS (Questions 1–25)
1. Which authentication protocol is primarily used for Windows credentialed
scans in Tenable.io?
A) SSH
B) SMB/WMI
C) SNMP
D) Kerberos only
Answer: B
Rationale: Tenable uses SMB (TCP 445/139) and WMI (Windows Management
Instrumentation) APIs to authenticate to Windows hosts for registry and patch
enumeration. SSH is for Unix/Linux; SNMP provides only limited inventory;
Kerberos underpins domain authentication but is not the primary scan transport.
2. What is the primary role of the Nessus scanning engine in Tenable's
architecture?
A) To aggregate scan results into dashboards
B) To execute vulnerability checks and gather host information
C) To manage user authentication
D) To act as a firewall bypass proxy
Answer: B
Rationale: Nessus is the core vulnerability scanning engine. It executes plugins,
probes services, authenticates to hosts, and returns raw data to the Tenable
platform. Dashboards are managed by Tenable.io or Tenable.sc.
3. Which component is Tenable's on-premises, continuous monitoring and
vulnerability management solution?
A) Tenable.io
1
,B) Tenable.sc
C) Nessus Professional
D) Nessus Agent
Answer: B
Rationale: Tenable.sc (formerly SecurityCenter) is the on-premises solution for
organizations that require air-gapped or on-premises deployment. Tenable.io is
cloud-based; Nessus Pro is a standalone scanner; the agent is a lightweight
endpoint sensor.
4. In a standard Tenable.sc deployment, what is the purpose of the "Repository"?
A) To store downloaded plugin updates
B) To logically separate scan results for data isolation and RBAC
C) To host the web interface
D) To proxy scan requests to external networks
Answer: B
Rationale: Repositories are logical containers for scan results. They allow role-
based access control (RBAC) so that different users or groups can only see data
from specific repositories. Plugins are stored in the plugin feed repository, not the
same concept.
5. Which Tenable product is specifically designed for industrial control systems
(ICS) and OT environments?
A) Nessus
B) Tenable.ot
C) Tenable.sc
D) Tenable.io Web App Scanning
Answer: B
Rationale: Tenable.ot is the dedicated product for OT/ICS environments, with
non-intrusive and passive monitoring protocols. Nessus can scan IT, but
Tenable.ot is specialized for industrial protocols (Modbus, DNP3, etc.).
6. Tenable.io uses a cloud-based architecture. What is a "Scan Zone"?
A) A geographical region where assets are physically located
2
,B) A group of scanners managed by a Tenable.io sensor to scan remote networks
C) A security group for firewall rules
D) A compliance framework template
Answer: B
Rationale: Scan Zones in Tenable.io allow you to deploy scanners (linked to a
zone) to scan networks that are isolated from the cloud (e.g., private subnets).
This facilitates scanning of internal networks without exposing them directly to
the internet.
7. What is the function of the Tenable Nessus Network Monitor (NNM)?
A) It performs active scanning of all network ports
B) It passively monitors network traffic to identify vulnerabilities and assets
C) It acts as a proxy for authenticated scans
D) It manages TLS certificates for Tenable.sc
Answer: B
Rationale: NNM is a passive monitoring tool that analyzes network traffic (packet
inspection) to identify assets, services, and vulnerabilities without active scanning.
This is useful for monitoring sensitive OT or high-availability environments.
8. In a high-availability Tenable.sc deployment, which component is redundant?
A) The SecurityCenter web interface
B) The Nessus scanner
C) The repository database
D) All of the above
Answer: D
Rationale: High-availability configurations often replicate the web interface,
scanners, and repository databases to ensure continuous operation and failover.
9. Which protocol is used for Tenable agents to communicate with Tenable.io or
Tenable.sc?
A) TCP 443 (HTTPS) – encrypted outbound communication
B) TCP 22 (SSH)
C) TCP 3389 (RDP)
3
, D) UDP 161 (SNMP)
Answer: A
Rationale: Tenable agents establish a persistent outbound HTTPS (TCP 443)
connection to Tenable.io or Tenable.sc. This ensures secure, encrypted
communication and avoids the need for inbound firewall rules.
10. What is the difference between Tenable.io Vulnerability Management and
Tenable.io Web App Scanning?
A) Web App Scanning is a separate product; Vulnerability Management focuses
on hosts and infrastructure.
B) Web App Scanning is included free with all subscriptions.
C) There is no difference.
D) Web App Scanning uses SNMP only.
Answer: A
Rationale: Tenable.io VM scans hosts, operating systems, and network services.
Tenable.io WAS is a dedicated module for scanning web applications (including
APIs and OWASP Top 10 vulnerabilities) with its own scan templates and
credentials.
11. Which component stores vulnerability findings and historical scan data in
Tenable.sc?
A) The Nessus scanner
B) The MySQL (or PostgreSQL) repository database
C) The Apache web server
D) The LDAP directory server
Answer: B
Rationale: The repository in Tenable.sc is a relational database
(MariaDB/PostgreSQL) that stores all scan results, asset data, and historical
records. The scanner sends data to the repository for storage and analysis.
12. A user reports that a newly deployed Nessus scanner does not appear in
Tenable.io. What is the most likely reason?
A) The scanner is not linked using the activation code generated in Tenable.io.
4
