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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Implementations | 20% | - Routing concepts and protocols - Wireless standards and deployment - Switching technologies and configurations - Network services configuration - Physical network installation |
| Topic 2: Network Security | 14% | - Threats, vulnerabilities, and mitigation - Authentication and access control - Security concepts and frameworks - Network hardening and secure configuration - Segmentation and traffic protection |
| Topic 3: Network Operations | 19% | - Infrastructure automation basics - Network monitoring and documentation - Performance management and optimization - High availability and redundancy - Business continuity and disaster recovery |
| Topic 4: Network Troubleshooting | 24% | - Connectivity issues - Troubleshooting methodology - Performance and latency problems - Wireless and security troubleshooting - Tools and command-line utilities |
| Topic 5: Networking Fundamentals | 23% | - Network devices and cabling - IP addressing and subnetting - OSI and TCP/IP models - Ports, protocols, and services - Network topologies and types |
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NEW QUESTION # 526
A network administrator notices uncommon communication between VMs on ephemeral ports on the same subnet. The administrator is concerned about that traffic moving laterally within the network. Which of the following describes the type of traffic flow the administrator is analyzing?
Answer: D
Explanation:
When traffic moves laterally between VMs within the same network or subnet, it is known as east-west traffic. This contrasts with north-south traffic, which refers to communication between internal and external networks.
Breakdown of Options:
A: East-west - Correct answer. This refers to traffic between internal servers or VMs, which is a common security concern.
B: Point-to-point - Point-to-point describes a direct connection between two devices, but does not specifically define lateral movement.
C: Horizontal-scaling - This refers to adding more instances or nodes in cloud computing, unrelated to traffic flow.
D: Hub-and-spoke - This network topology describes a centralized design, not lateral traffic.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 1.4: Analyze traffic patterns and behavior.
NIST SP 800-207: Zero Trust Architecture (ZTA) - East-West traffic monitoring
NEW QUESTION # 527
After installing a series of Cat 8 keystones, a data center architect notices higher than normal interference during tests. Which of the following steps should the architect take to troubleshoot the issue?
Answer: B
NEW QUESTION # 528
A customer migrates its phone system from analog to a new hosted VoIP/software application solution with integrated video. After installation, some users notice issues with dropped calls, broken video, and slow internet access. The issues start in the mid-morning and continue into the afternoon. However, remote users do not report the same issues. Which of the following is the most likely cause of the issues?
Answer: A
Explanation:
The best answer is C. Insufficient bandwidth . The pattern in the question matters more than anything else.
The company moved to a hosted VoIP and video solution , which means voice and video traffic now depend heavily on the site's internet connection. The problems begin mid-morning and continue into the afternoon
, which strongly suggests the link becomes congested during the busiest usage period of the day.
That also explains why users see dropped calls, broken video, and slow internet access all at the same time.
Real-time applications like VoIP and video are very sensitive to delay, jitter, and packet loss. When bandwidth is limited or saturated, those services are usually the first to show noticeable symptoms.
The fact that remote users do not report the same issue is another major clue. If the application platform itself were failing, remote users would likely be affected too. Since the issue seems limited to the main site, the bottleneck is most likely the local office's WAN or internet connection rather than the hosted service.
The other options are weaker. Roaming misconfiguration is more of a wireless mobility issue, signal degradation is too vague for this traffic pattern, and a miswired cable would not usually appear only during peak business hours. This points to insufficient bandwidth .
NEW QUESTION # 529
A technician is troubleshooting a computer issue for a user who works in a new annex of an office building. The user is reporting slow speeds and intermittent connectivity. The computer is connected via a Cat 6 cable to a distribution switch that is 492ft (150m) away. Which of the following should the technician implement to correct the issue?
Answer: A
Explanation:
The maximum recommended length for Ethernet cable runs is 100 meters (328 feet). At 150 meters, the Cat 6 cable is too long, causing signal degradation and connectivity issues. Running fiber from the distribution switch to an access switch in the annex will allow for reliable connectivity over longer distances, as fiber can cover greater distances without signal loss. (Reference: CompTIA Network+ Study Guide, Chapter on Network Cable Standards)
NEW QUESTION # 530
Users are experiencing significant lag while connecting to a cloud-based application during peak hours. An examination of the network reveals that the bandwidth is being heavily utilized. Further analysis shows that only a few users are using the application at any given time. Which of the following is the most cost-effective solution for this issue?
Answer: D
Explanation:
QoS (Quality of Service) allows the network administrator to prioritize critical traffic - such as the cloud-based application - over less important traffic. This ensures that even during high bandwidth usage, essential application traffic maintains acceptable performance.
Limiting users is restrictive and does not address the root cause. Leasing a Direct Connect (or dedicated line) is effective but expensive, not cost-effective for most use cases. A CDN (Content Delivery Network) improves performance for static content delivery, not for cloud applications requiring real-time interaction.
Implementing QoS is the most cost-effective way to reduce lag for prioritized application traffic during congestion.
NEW QUESTION # 531
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