CompTIA Network+ N10-009 (V9) Exam Acronyms Practice Test 4

MPO stands for Multi-fiber Push On, a connector type bundling multiple fiber strands into a single connector.

SPAN stands for Switched Port Analyzer, the feature that copies traffic from one or more switch ports to a monitoring port.

OOB (Out-of-band) management accesses and manages a device through a separate path independent of the production network.

USB stands for Universal Serial Bus, a common standard for connecting peripherals and transferring data or power.

RTO (Recovery Time Objective) defines the maximum acceptable time to restore systems and operations after a disaster.

RPO defines the maximum acceptable amount of data loss, measured in time, in a disaster recovery plan.

MTTR stands for Mean Time To Repair, the average time required to repair a piece of hardware after it fails.

MTBF measures the average time a piece of hardware operates before it fails.

SLA stands for Service-level Agreement, defining measurable service commitments such as guaranteed uptime.

DAS is storage directly attached to a single server or computer, without going through a network.

SAN stands for Storage Area Network, providing block-level storage typically presented to servers as local disk.

NAS provides file-level storage accessible over the network using standard file sharing protocols.

UTP stands for Unshielded Twisted Pair, a common copper cable type used in Ethernet networking.

NIC stands for Network Interface Card, the component connecting a device to a network.

ST uses a twist-lock mechanism, SC uses push-pull, LC is a small-form-factor connector, and BNC is used with coaxial cable.

DAC stands for Direct Attach Copper, a cable assembly with integrated transceivers for short, high-speed data center links.

Fibre Channel (FC) is a high-speed network technology primarily used for connecting servers to storage in a SAN.

QSFP stands for Quad Small Form-factor Pluggable, a higher-density transceiver form factor than standard SFP.

SFP is a common small, hot-swappable transceiver form factor used for fiber or copper connections.

IDF stands for Intermediate Distribution Frame, a smaller per-floor wiring closet connecting back to the MDF.

The MDF is the central location in a building where all external and internal cabling converges.

PoE stands for Power over Ethernet, delivering electrical power to devices over the same cable carrying data.

A UPS provides battery backup power, keeping connected equipment running temporarily during a utility outage.

In this exam's context, PDU stands for Power Distribution Unit, distributing power to multiple devices in a rack.

A PSU converts AC power from a wall outlet into DC power for internal computer components.