CompTIA N10-009 Based on Real Exam Environment

Shoulder surfing is a social engineering attack where attackers observe someone’s private information by looking over their shoulder or using tools like cameras to capture input.

From Andrew Ramdayal’s guide:

“Shoulder surfing is the act of watching someone enter confidential information, such as PINs or passwords, often using direct line-of-sight or surveillance equipment.”

The correct answer is A. To support voltage requirements for devices in an IDF. In the CompTIA Network+ N10-009 objectives, network infrastructure includes power systems such as Uninterruptible Power Supplies (UPS) and Power Distribution Units (PDU), which are critical components in both MDF (Main Distribution Frame) and IDF (Intermediate Distribution Frame) environments.

A UPS provides temporary backup power during electrical outages and also conditions power by protecting against surges, spikes, and voltage fluctuations. This ensures that sensitive network equipment such as switches, routers, and servers can continue operating or safely shut down. A PDU, on the other hand, distributes electrical power to multiple devices within a rack, ensuring that all equipment receives the appropriate voltage and sufficient power capacity.

Option B is incorrect because while PDUs can help distribute power, they do not directly manage or optimize power consumption. Option C refers to networking devices like switches, not power equipment. Option D relates to environmental controls such as HVAC systems, not UPS or PDU devices.

Therefore, the primary purpose of UPS and PDU systems is to ensure stable and adequate power delivery to network devices, particularly in environments like IDFs.

NTP (Network Time Protocol) synchronizes clocks across network devices, ensuring accurate timestamps in logs. This is critical for correlating events across different systems during investigations.

A. Syslog collects logs but relies on accurate timestamps already present.

B. SMTP is an email protocol, unrelated to time synchronization.

C. SNMP is for monitoring and management, not time.

References (CompTIA Network+ N10-009):

Domain: Network Operations — Time synchronization (NTP), log correlation, security operations.

After implementing a solution and putting preventive measures in place, the next step is to verify that the system is functioning correctly. This ensures that the issue has been fully resolved.

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