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CompTIA N10-009 시험요강:

주제소개
주제 1
  • Network Operations: For IT operations staff and network operations center (NOC) technicians, this part of the exam covers the purpose of organizational processes and procedures and use of network monitoring technologies.
주제 2
  • Selection and configuration of wireless devices.
주제 3
  • Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and
주제 4
  • OSI reference model concepts, Comparison of networking appliances, applications, and functions

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최신 CompTIA Network+ N10-009 무료샘플문제 (Q423-Q428):

질문 # 423
A major natural disaster strikes a company's headquarters, causing significant destruction and data loss. The company needs to quickly recover and resume operations. Which of the following will a network administrator need to do first?

정답：A

설명：
In disaster recovery, the first step after an incident is to conduct a thorough damage assessment to understand the extent of the damage and determine the next appropriate steps. This allows for informed decision-making during the recovery process. The document says:
"The first step after a disaster is to conduct a damage assessment. This involves evaluating the extent of damage to equipment, infrastructure, and data, forming the foundation for recovery efforts and prioritizing response actions."


질문 # 424
A network engineer receives a new router to use for WAN connectivity. Which of the following best describes the layer the network engineer should connect the new router to?

정답：B

설명：
A new WAN edge router should connect into the core or distribution/core aggregation layer, not directly to access, leaf, or spine switches in typical exam-style enterprise designs. The core (or collapsed core/distribution) is where connectivity to external networks such as WAN and Internet is terminated, then redistributed into the campus/access layers.


질문 # 425
Which of the following steps of the troubleshooting methodology comes after testing the theory to determine cause?

정답：D

설명：
The CompTIA Troubleshooting Methodology states that after testing the theory, the next step is to establish a plan of action to resolve the issue.
Troubleshooting Steps:
Identify the problem.
Establish a theory of probable cause.
Test the theory to determine the cause.
Establish a plan of action and implement the solution. # (Correct step) Verify full system functionality.
Document findings, actions, and outcomes.
Breakdown of Options:
A: Verify full system functionality - Happens after implementing the solution.
B: Document the findings and outcomes - Final step, happens after resolving the issue.
C: Establish a plan of action - # Correct answer. Comes immediately after confirming the cause.
D: Identify the problem - First step, already completed.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 5.1: Explain network troubleshooting methodology.


질문 # 426
A technician needs to set up a wireless connection that utilizes MIMO on non-overlapping channels. Which of the following would be the best choice?

정답：D

설명：
The 802.11n standard supports MIMO (Multiple Input Multiple Output), which allows multiple antennas to increase data throughput and improve reliability. Additionally, it uses non-overlapping channels in the 5 GHz band (and optionally the 2.4 GHz band), making it a good choice for high-speed, interference-resistant wireless connections. (Reference: CompTIA Network+ Study Guide, Chapter on Wireless Technologies)


질문 # 427
A network architect of a stock exchange broker is implementing a disaster recovery (DR) high-availability plan. Which of the following approaches would be the best fit?

정답：C

설명：
In financial institutions such as stock exchanges, downtime or latency can have severe consequences. Active-active high availability ensures multiple sites/systems are running simultaneously, distributing the load and providing immediate failover with minimal or no interruption. This is the best approach for environments that require continuous uptime and resiliency.
A . Warm site: Useful for disaster recovery, but not immediate; systems must be partially configured and brought online.
C . Full mesh: Refers to topology interconnections, not DR/HA design.
D . In-band: Relates to management methods, not HA/DR strategies.
Reference (CompTIA Network+ N10-009):
Domain: Network Infrastructure - High availability, redundancy strategies, active-active vs. active-passive design.


질문 # 428
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