CompTIA Network+ Practice Test for Subdomain 2.2 #02

Welcome to today’s CompTIA Network+ practice test!

This practice test uses our new UI!

Today’s practice test is based on Subdomain 2.2 (Given a scenario, configure switching technologies and features) from the CompTIA Network+ N10-009 objectives.

This beginner-level practice test is inspired by the CompTIA Network+ (N10-009) exam and is designed to help you reinforce key networking concepts on a daily basis.

These questions are not official exam questions, nor are they brain dumps, but they reflect topics and scenarios relevant to the Network+ certification. Use them to test your knowledge, identify areas for improvement, and build daily cybersecurity habits.

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To choose CompTIA Network+ practice tests based on specific domains/subdomains, click that link.

CompTIA Network+ Practice Test for Subdomain 2.2 #02

10 questions • Single best answer

Question 1

A junior network engineer at a healthcare organization is segmenting the network to isolate medical devices from the general staff workstations. The switches support managed VLAN configuration. Which action should the engineer take first to logically separate these two groups of devices?

A. Configure separate physical switch stacks for each group of devices B. Create distinct VLANs in the VLAN database and assign the appropriate ports as access ports to each VLAN C. Enable 802.1Q tagging on all access ports connected to medical devices D. Assign a unique IP subnet to each switch and configure static routes between them

Question 2

A network technician is connecting two managed switches using a single uplink cable. The link must carry traffic for VLANs 10, 20, and 30 simultaneously. The technician needs to configure the uplink port on both switches correctly. Which port configuration should be applied to the uplink ports?

A. Configure both uplink ports as access ports assigned to VLAN 1 B. Configure both uplink ports as trunk ports with 802.1Q tagging allowed for VLANs 10, 20, and 30 C. Configure both uplink ports as access ports with VLAN 10 as the primary VLAN D. Configure one port as a trunk port and the other as an access port to allow bidirectional traffic

Question 3

A security analyst reviewing switch configurations discovers that the native VLAN on several trunk ports is still set to VLAN 1, which is also being used by a subset of workstations. The analyst is concerned about a potential VLAN hopping attack. What is the recommended remediation?

A. Disable 802.1Q tagging on all trunk ports to prevent VLAN hopping B. Change the native VLAN on trunk ports to an unused VLAN ID that is not assigned to any end devices C. Assign all workstations to VLAN 1 to ensure native VLAN consistency D. Enable port security on trunk ports to restrict MAC addresses

Question 4

A help desk analyst receives a ticket reporting that IP phones on a new floor are not receiving voice traffic properly, even though the phones are connected to the correct switch ports. The analyst reviews the port configuration and notices the voice VLAN is not set. The data VLAN 10 is configured correctly. Which configuration change will resolve the issue?

A. Create a separate trunk port for each IP phone to carry the voice VLAN independently B. Configure the switch port with both the data VLAN 10 as the access VLAN and the designated voice VLAN on the same port C. Assign IP phones to VLAN 1 since it is the default VLAN and will carry all untagged traffic D. Set the switch port to trunk mode to carry all VLANs for the IP phone and workstation

Question 5

A network administrator at a mid-sized manufacturing company notices that adding a new switch to the existing network caused intermittent connectivity outages that resemble broadcast storms. After investigation, the team suspects a switching loop exists. Which feature should be verified and enabled on all switches to prevent this issue?

A. Link aggregation control protocol (LACP) B. Spanning Tree Protocol (STP) C. 802.1Q VLAN tagging D. Port mirroring

Question 6

A data center engineer needs to increase the uplink bandwidth between a core switch and a distribution switch from 1 Gbps to 4 Gbps without replacing any hardware. Four 1 Gbps ports are available on both switches. Which technology should the engineer implement to achieve the desired bandwidth increase?

A. Configure each of the four ports as separate trunk ports carrying different VLANs B. Use Spanning Tree Protocol to allow all four links to forward simultaneously C. Bundle the four physical links into a single logical interface using link aggregation D. Enable jumbo frames on all four ports to increase per-frame throughput

Question 7

A storage administrator reports that iSCSI traffic between the SAN and servers is performing below expectations on the dedicated storage VLAN. A network engineer suspects the Ethernet frames are being fragmented due to the default MTU setting on the switches. What configuration change is most likely to improve iSCSI storage traffic performance?

A. Enable 802.1Q tagging on the storage VLAN ports to reduce overhead B. Enable jumbo frames by increasing the MTU on the storage VLAN switch ports to 9000 bytes C. Configure LACP on the storage ports to double the available bandwidth D. Assign the storage VLAN a higher 802.1p QoS priority to reduce latency

Question 8

A network administrator needs to enable inter-VLAN routing on a campus network but wants to avoid purchasing a dedicated router. The existing core switch is a Layer 3 capable managed switch. Which feature should the administrator configure to allow traffic to route between VLANs on the switch itself?

A. Configure a dedicated trunk port on the switch pointing to a router-on-a-stick setup B. Create a Switch Virtual Interface (SVI) for each VLAN and assign IP addresses to each SVI C. Enable port mirroring between VLANs to forward traffic across VLAN boundaries D. Configure all VLANs to use the same subnet to eliminate the need for routing

Question 9

A technician is troubleshooting a workstation that consistently achieves only half its expected 1 Gbps throughput to a server on the same switch. Interface error counters on the switch show a high number of runts and FCS errors on the workstation's port. The workstation NIC is set to auto-negotiate. Which configuration issue is the most likely cause?

A. The switch port is assigned to the wrong VLAN, causing traffic to be dropped B. The server's switch port has jumbo frames enabled, causing fragmentation on the workstation connection C. The switch port connected to the workstation has its speed or duplex hard-set, causing a speed or duplex mismatch with the workstation's auto-negotiating NIC D. The spanning tree port state is in a listening state, causing intermittent packet drops

Question 10

The IT team at a regional university is deploying new student lab workstations across multiple buildings. Each building has its own access switch that uplinks to a central distribution switch. The team needs all student workstations to be on VLAN 50, regardless of which building they connect from. What must be configured on the inter-switch links to ensure VLAN 50 traffic reaches all buildings?

A. Assign VLAN 50 as the native VLAN on all access ports in every building B. Configure the uplinks between access switches and the distribution switch as trunk ports that allow VLAN 50 C. Configure a separate physical link per building dedicated only to VLAN 50 traffic D. Enable Spanning Tree Protocol on all switches to propagate VLAN 50 across buildings

CompTIA Network+ Practice Test for Subdomain 2.2 #02

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