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| Section | Weight | Objectives |
|---|---|---|
| Network Implementations | 20% | - Routing concepts and protocols - Physical network installation - Wireless standards and deployment - Switching technologies and configurations - Network services configuration |
| Network Troubleshooting | 24% | - Troubleshooting methodology - Tools and command-line utilities - Wireless and security troubleshooting - Connectivity issues - Performance and latency problems |
| Network Security | 14% | - Network hardening and secure configuration - Authentication and access control - Threats, vulnerabilities, and mitigation - Security concepts and frameworks - Segmentation and traffic protection |
| Networking Fundamentals | 23% | - IP addressing and subnetting - Network devices and cabling - OSI and TCP/IP models - Ports, protocols, and services - Network topologies and types |
| Network Operations | 19% | - Performance management and optimization - Business continuity and disaster recovery - Infrastructure automation basics - High availability and redundancy - Network monitoring and documentation |
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NEW QUESTION # 602
A network engineer added more APs to improve wireless coverage. However, users now report that the connectivity disconnects and reconnects repeatedly. Which of the following is causing the issue?
Answer: B
Explanation:
Adding more APs without proper channel planning can cause channel overlap, resulting in interference that leads to frequent disconnects and reconnects for users.
NEW QUESTION # 603
Which of the following network topologies involves sending all traffic through a single point?
Answer: C
NEW QUESTION # 604
Which of the following is the next step to take after successfully testing a root cause theory?
Answer: C
Explanation:
* Troubleshooting Methodology:
* Confirming the Root Cause: After testing and confirming the theory, the next logical step is to address the issue by implementing a solution.
* Implementation of the Solution:
* Resolve the Issue: Implement the identified solution to rectify the problem. This step involves making necessary changes to the network configuration, replacing faulty hardware, or applying software patches.
* Documentation: Document the solution and the steps taken to resolve the issue to provide a reference for future troubleshooting.
* Comparison with Other Steps:
* Determine Resolution Steps: This is part of the implementation process where specific actions are outlined, but the actual next step after testing is to implement those steps.
* Duplicate the Problem in a Lab: This step is typically done earlier in the troubleshooting process to understand the problem, not after confirming the root cause.
* Present the Theory for Approval: In some scenarios, presenting the theory might be necessary for major changes, but generally, once the root cause is confirmed, the solution should be implemented.
* Final Verification:
* After implementing the solution, it is important to verify that the issue is resolved and that normal operations are restored. This may involve monitoring the network and testing to ensure no further issues arise.
NEW QUESTION # 605
Which of the following is used to stage copies of a website closer to geographically dispersed users?
Answer: A
Explanation:
A Content Delivery Network (CDN) caches website content across multiple geographically distributed servers to reduce latency and improve load times for users worldwide.
Breakdown of Options:
A: VPN - Encrypts network connections, does not distribute website content.
B: CDN - # Correct answer. A network of caching servers that delivers web content faster.
C: SAN - Storage Area Network, not related to web content distribution.
D: SDN - Software-defined networking, which controls network flows but does not stage website content.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 1.5: Compare and contrast different networking services.
NEW QUESTION # 606
A network engineer adds a tunnel for a new branch network. Which of the following ensures that all data is encrypted inside the tunnel?
Answer: A
Explanation:
ESP (Encapsulating Security Payload) is an IPsec protocol that provides encryption, integrity, and authentication for data inside a VPN tunnel. It ensures that all tunneled traffic is encrypted.
B . SSH secures remote terminal sessions, not site-to-site VPN tunnels.
C . GRE (Generic Routing Encapsulation) provides encapsulation but does not encrypt data.
D . IKE (Internet Key Exchange) negotiates keys and establishes the IPsec tunnel but does not encrypt the payload itself.
Reference (CompTIA Network+ N10-009):
Domain: Network Security - VPN protocols, IPsec (AH vs. ESP), encryption in transit.
NEW QUESTION # 607
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