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CompTIA Network+ Certification Exam Sample Questions (Q349-Q354):

NEW QUESTION # 349
A customer wants to cache commonly used content to reduce the number of full page downloads from the internet. Which of the following should the network administrator recommend?

A. Proxy server
B. Open relay
C. Load balancer
D. Code repository

Answer: A

Explanation:
Comprehensive and Detailed Explanation (paraphrased, aligned to N10-009):
A proxy server (specifically a caching HTTP/HTTPS proxy) stores frequently accessed web objects and serves them locally to clients, reducing external bandwidth consumption and improving response times.
* B. Load balancer distributes traffic across servers but does not inherently cache internet content.
* C. Open relay is a misconfigured mail server that permits unauthorized relaying-this is a security issue, not a caching solution.
* D. Code repository (e.g., for source control) isn't related to web content caching.
References (CompTIA Network+ N10-009):
* Domain: Network Standards, Protocols, and Implementations - Application-layer services (HTTP
/HTTPS), proxies and caching behavior, performance optimization.

NEW QUESTION # 350
Which of the following should be used to obtain remote access to a network appliance that has failed to start up properly?

A. Jump box
B. Crash cart
C. Secure Shell (SSH)
D. Out-of-band management

Answer: D

Explanation:
If a network appliance fails to start, standard remote access methods like SSH won't work. Instead, Out-of-Band (OOB) management provides a dedicated access path (e.g., a console port or iDRAC/iLO), allowing administrators to troubleshoot devices even when the network is down.
Breakdown of Options:
A . Crash cart - A physical monitor/keyboard setup, not a remote solution.
B . Jump box - A hardened system used for secure remote access but requires the device to be operational.
C . Secure Shell (SSH) - Requires the device to be fully booted and network-connected.
D . Out-of-band management - ✅ Correct answer. Provides independent access for troubleshooting failed network devices.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 4.3: Explain network device management concepts.

NEW QUESTION # 351
A network engineer needs to correlate findings and receive alerts if there are brute force attacks, DDoS attacks, or port scanning happening within their network. Which of the following network monitoring technologies should the engineer implement?

A. SIEM
B. Syslog collector
C. Packet capture
D. SNMPv3

Answer: A

Explanation:
A SIEM (Security Information and Event Management) platform is built to collect, correlate, and alert on security-relevant events across many sources, which is exactly what's needed to identify patterns such as brute force attempts, port scanning, and DDoS indicators. In Network+ (N10-009) security operations concepts, correlation is key: a SIEM can ingest logs from firewalls, IDS/IPS, servers, authentication systems, endpoint agents, and network devices, then apply rules/analytics to detect suspicious behavior that might not be obvious from a single log source. It can also generate real-time alerts, dashboards, and incident timelines-helping the engineer respond quickly and prioritize threats.
Packet capture provides deep visibility into traffic but is not inherently designed for enterprise-wide correlation and alerting without significant additional tooling and expertise. SNMPv3 is used for secure device monitoring (status, counters, performance) rather than detecting coordinated attack patterns. A syslog collector centralizes logs but generally does not provide the same level of correlation, enrichment, and automated alerting capabilities as a SIEM. Therefore, SIEM is the best answer.

NEW QUESTION # 352
A network technician is troubleshooting network latency and has determined the issue to be occuring two network switches( Switch10 and Switch11). Symptoms reported included poor video performance and slow file copying. Given the following informtion:

Which of the following should the technician most likely do to resolve the issue?

A. Modify Switch10 MTU value to 1500.
B. Configure STP on both switches.
C. Change the native VLAN on the ports.
D. Disable automatic negotiation on Switch11.

Answer: A

NEW QUESTION # 353
A company's network is experiencing high latency and packet loss during peak hours. Network monitoring tools show increased traffic on a switch. Which of the following should a network technician implement to reduce the network congestion and improve performance?

A. Load balancing
B. Quality of Service
C. Port mirroring
D. Spanning Tree Protocol

Answer: B

Explanation:
Quality of Service (QoS): This is a feature used in networking to prioritize certain types of traffic. By configuring QoS, network administrators can allocate higher bandwidth to time-sensitive applications like VoIP, video conferencing, or critical business applications during peak usage times. This helps to reduce latency and packet loss, which are often caused by congestion.
Load Balancing (A): While load balancing is useful in distributing traffic across multiple servers or paths, it does not address congestion on a single switch.
Port Mirroring (B): This is used for monitoring network traffic for troubleshooting and diagnostics but does not alleviate congestion.
Spanning Tree Protocol (D): STP prevents switching loops in redundant network topologies, but it is not designed to handle traffic prioritization or congestion issues.
Reference: CompTIA Network+ Official Study Guide, Domain 1.5 (Network Optimization), Domain 2.1 (Network Management).

NEW QUESTION # 354
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