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NEW QUESTION # 577
A network requirement calls for the network traffic of a specific department within a campus network to be monitored. The network has users from each department located in multiple buildings. Which of the following should be configured to meet this requirement? (Choose two.)
Answer: A,F
Explanation:
802.1Q is a standard for VLAN tagging, which allows the network administrator to segment the network traffic of different departments into separate VLANs. This makes it easier to monitor and manage the traffic of each department.
Port mirroring is a feature that allows the network administrator to copy the traffic from one or more ports to another port for analysis. By configuring port mirroring on the ports connected to the specific department, the network administrator can monitor the traffic of that department in real-time.
NEW QUESTION # 578
Which of the following should be configured so users can authenticate to a wireless network using company credentials?
Answer: D
Explanation:
RADIUS (Remote Authentication Dial-In User Service) is a networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA) management for users who connect and use a network service. RADIUS is often used to manage access to wireless networks, enabling users to authenticate with their company credentials, ensuring secure access to the network.Reference: CompTIA Network+ study materials.
NEW QUESTION # 579
Users on the network are experiencing slow throughput. A technician wants to increase throughput without changing any switch hardware. Which of the following solutions should the technician implement?
Answer: B
Explanation:
The correct answer is D. Link aggregation. Link aggregation combines multiple physical switch links into one logical connection. This increases available bandwidth and can also add redundancy, all without replacing the switch hardware itself. If users are experiencing slow throughput and the goal is to improve capacity using existing equipment, bundling links is a common and effective solution.
The other options do not directly increase throughput. SVI configuration provides Layer 3 interfaces for VLANs, but it does not add link capacity. VLAN trunking allows multiple VLANs to traverse one connection, but that does not increase bandwidth by itself. 802.1Q tagging identifies VLAN membership on tagged frames; it is related to trunking, not throughput expansion.
In many enterprise environments, link aggregation is implemented through standards such as LACP. This lets several ports act together as one logical channel, which can help distribute traffic more efficiently across the bundled interfaces. For Network+ exam scenarios, when the requirement is to improve throughput using the current switch hardware rather than buying faster switches, link aggregation is the most appropriate answer.
NEW QUESTION # 580
Which of the following is used to estimate the average life span of a device?
Answer: B
Explanation:
* Understanding MTBF:
* Mean Time Between Failures (MTBF):A reliability metric that estimates the average time between successive failures of a device or system.
* Calculation and Importance:
* Calculation:MTBF is calculated as the total operational time divided by the number of failures during that period.
* Usage:Used by manufacturers and engineers to predict the lifespan and reliability of a device, helping in maintenance planning and lifecycle management.
* Comparison with Other Metrics:
* RTO (Recovery Time Objective):The maximum acceptable time to restore a system after a failure.
* RPO (Recovery Point Objective):The maximum acceptable amount of data loss measured in time.
* MTTR (Mean Time to Repair):The average time required to repair a device or system and return it to operational status.
* Application:
* MTBF is crucial for planning maintenance schedules, spare parts inventory, and improving the overall reliability of systems.
References:
* CompTIA Network+ study materials on reliability and maintenance metrics.
NEW QUESTION # 581
Which of the following steps of the troubleshooting methodology should a technician take to confirm a theory?
Answer: A
Explanation:
To confirm a theory in the troubleshooting process, the technician should duplicate (replicate) the problem under controlled conditions. In the Network+ (N10-009) methodology, confirming a theory means validating that the suspected cause actually produces the observed symptoms. Replicating the issue helps ensure the technician is not chasing a coincidence, and it allows changes to be tested safely (for example, reproducing the issue with a specific user account, endpoint, cable, port, SSID, or configuration). If the problem can be duplicated, the technician can then try targeted actions to see whether the symptoms change in predictable ways-strengthening or disproving the hypothesis.
The other choices occur earlier as part of forming the theory. Identify the symptoms is an initial step to define the problem clearly. Gather information is part of the discovery phase-collect logs, error messages, topology details, and user observations. Determine any changes is also an early step used to correlate recent modifications (patches, new devices, config changes) with the onset of the issue. Those steps help create a theory; duplication helps confirm it before implementing a full fix.
NEW QUESTION # 582
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