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Network+ Network Implementation Flashcards

7 cards from real COMPTIA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. A network engineer needs to implement a solution where multiple routers share a single virtual IP address for gateway redundancy. Which protocol achieves this?

    Answer: VRRP

    VRRP (Virtual Router Redundancy Protocol) allows multiple routers to share a virtual IP as a default gateway, with one acting as master and others as backup.

  2. Which type of DNS record is used to map a hostname to an IPv6 address?

    Answer: AAAA record

    AAAA (quad-A) records map a fully qualified domain name to a 128-bit IPv6 address, while A records map to 32-bit IPv4 addresses.

  3. A company uses BGP to exchange routes with two different ISPs. What type of routing setup does this describe?

    Answer: Multi-homed

    Multi-homing refers to connecting an organization to two or more separate ISPs for redundancy and load balancing, typically managed with BGP.

  4. Which fiber connector type uses a small form-factor push-pull latch and is common in high-density patch panels?

    Answer: LC connector

    LC (Lucent Connector) connectors use a small form-factor latch mechanism and are commonly used in SFP transceivers and high-density patch panels.

  5. An administrator wants to monitor traffic between a server and a firewall without interrupting the flow. Which switch feature should be used?

    Answer: Port mirroring (SPAN)

    Port mirroring (SPAN — Switched Port Analyzer) copies traffic from one or more ports to a designated monitoring port without affecting traffic flow.

  6. Which tunneling protocol encapsulates Layer 2 frames over an IP network and is commonly used to extend VLANs between data centers?

    Answer: VXLAN

    VXLAN (Virtual Extensible LAN) encapsulates Layer 2 Ethernet frames in UDP packets, enabling VLAN extension across Layer 3 boundaries in data center networks.

  7. A technician needs to confirm that two network devices support the same PoE standard before connecting them. Which tool should be used?

    Answer: PoE tester

    A PoE tester verifies the power class, voltage, and wattage delivered on a cable to confirm compatibility between PoE-capable switch ports and powered devices.