CompTIA Network+ Practice Test for Subdomain 2.4 #01

Question 1

A data center technician at a financial services firm is deploying network infrastructure for a newly renovated five-story office building. The design calls for a centralized location on the first floor to house the core switching equipment, WAN uplinks, and the building's demarcation point, with smaller closets on each upper floor connecting back to it via riser cabling. What is the correct term for the centralized first-floor facility?

A. Intermediate distribution frame (IDF) B. Main distribution frame (MDF) C. Patch panel enclosure D. Fiber distribution panel (FDP)

Question 2

A junior network administrator is ordering rack enclosures for a new network closet. The equipment list includes a 2U core switch, two 1U access switches, a 1U router, and a 2U uninterruptible power supply. The administrator's manager requests that the rack provide at least 5U of additional space for future equipment. What is the minimum rack size the administrator must order to satisfy both the current equipment and future capacity requirements?

A. 8U B. 10U C. 12U D. 14U

Question 3

A network engineer is designing the physical layout of a newly constructed server room. The equipment racks contain servers that draw cool air in through their front panels and exhaust hot air out the rear. The engineer arranges the racks so that equipment fronts face each other in alternating rows, with dedicated pathways for cool supply air at the front of rows and hot exhaust collection at the back. Which airflow management strategy is the engineer implementing?

A. Port-side exhaust cooling B. Hot aisle and cold aisle containment C. In-row liquid cooling D. Overhead plenum cooling

Question 4

A help desk analyst receives a ticket from a user on the fourth floor who has lost network connectivity after maintenance was performed in the building's network closet. The closet uses a patch panel to terminate all horizontal cable runs from office wall jacks. The analyst needs to understand how to restore connectivity. Which statement best describes the purpose of a patch panel in a structured cabling installation?

A. It provides Power over Ethernet (PoE) to devices connected on each floor B. It serves as a passive termination point for permanent horizontal cabling runs, enabling flexible cross-connection to active switch ports via short patch cables C. It amplifies network signals to extend copper cable runs beyond the 100-meter maximum D. It converts fiber optic signals to copper Ethernet for distribution to end-user devices

Question 5

A network engineer at a regional ISP is installing a high-capacity fiber connection between the main distribution frame and an intermediate distribution frame located on the sixth floor. The engineer terminates the fiber strands at a dedicated enclosure at each end before connecting them to active transceivers using short factory-made jumper cables. Which component is the engineer using at each termination point?

A. Fiber repeater B. Media converter C. Fiber distribution panel D. Optical line terminal (OLT)

Question 6

A facilities manager at a regional bank is reviewing the power protection plan for the network equipment room. During a recent storm, the utility power failed for approximately 300 milliseconds before the building's backup generator came online. This brief outage caused all servers and network devices to hard reboot, disrupting online banking services. Which device should be installed to prevent this from happening during future power transitions?

A. Power distribution unit (PDU) B. Automatic transfer switch (ATS) C. Uninterruptible power supply (UPS) D. Surge protector strip

Question 7

A data center operations technician is populating a new server rack with eight 1U servers, each equipped with dual redundant power supplies. The technician wants to install a rack-mounted device that distributes AC power to all servers from a single input feed, provides individual outlet-level power metering, and allows remote power cycling of specific outlets through a network management interface. Which device best meets these requirements?

A. Uninterruptible power supply (UPS) B. Managed power distribution unit (PDU) C. Automatic transfer switch (ATS) D. KVM over IP switch

Question 8

A school district IT coordinator is deploying active network equipment in multiple unmanned wiring closets distributed across a large campus. The district's security policy requires that only authorized personnel can physically access and interact with network switches and patch panels. Which physical security control most directly satisfies this requirement for the equipment inside each closet?

A. Enabling 802.1X port-based authentication on all switch ports B. Installing lockable rack enclosures with restricted key or badge access C. Deploying IP cameras at the entrance to each network closet D. Configuring management access control lists (ACLs) on all switches

Question 9

The network operations team at a logistics company receives an alert from the environmental monitoring system in their primary data center indicating that the ambient temperature has risen to 95 degrees Fahrenheit. The cooling system is experiencing a partial failure. If the elevated temperature is not corrected within the next hour, which outcome poses the greatest risk to the installed equipment?

A. Condensation forming on circuit boards due to rising dew point levels B. Thermal throttling followed by permanent hardware damage or failure from sustained overheating C. Magnetic field interference disrupting hard drive read and write operations D. Automatic activation of the fire suppression system triggered by excessive heat

Question 10

A data center manager at an insurance company is evaluating the fire suppression system for a room housing production servers, storage arrays, and core network switches. The manager wants a system that can extinguish a fire quickly and effectively without causing water damage or leaving residue that would destroy sensitive electronics. Which fire suppression technology is most appropriate for this environment?

A. Wet-pipe sprinkler system B. Dry-pipe sprinkler system C. Clean agent gaseous suppression system D. Foam deluge system

CompTIA Network+ Practice Test for Subdomain 2.4 #01

ByThe Test Master

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