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| Section | Weight | Objectives |
|---|---|---|
| Network Security | 14% | - Network hardening and secure configuration - Security concepts and frameworks - Authentication and access control - Segmentation and traffic protection - Threats, vulnerabilities, and mitigation |
| Network Implementations | 20% | - Wireless standards and deployment - Routing concepts and protocols - Physical network installation - Switching technologies and configurations - Network services configuration |
| Network Operations | 19% | - High availability and redundancy - Performance management and optimization - Network monitoring and documentation - Infrastructure automation basics - Business continuity and disaster recovery |
| Networking Fundamentals | 23% | - Ports, protocols, and services - Network devices and cabling - OSI and TCP/IP models - IP addressing and subnetting - Network topologies and types |
| Network Troubleshooting | 24% | - Tools and command-line utilities - Wireless and security troubleshooting - Performance and latency problems - Troubleshooting methodology - Connectivity issues |
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NEW QUESTION # 90
A network technician is troubleshooting a faulty NIC and tests the theory. Which of the following should the technician do next?
Answer: A
Explanation:
Once the theory has been tested and confirmed, the next step is to implement the solution based on the CompTIA troubleshooting model.
CompTIA Troubleshooting Model:
Identify the problem.
Establish a theory of probable cause.
Test the theory.
Establish a plan of action and implement the solution. ✅ (Correct step) Verify full system functionality.
Document findings, actions, and outcomes.
Breakdown of Options:
A . Develop a theory - The theory has already been developed and tested.
B . Establish a plan of action - This happens before implementation, but since the issue is confirmed, it's time to act.
C . Implement the solution - Correct answer. The problem is confirmed, so the fix should be applied.
D . Document the findings - Documentation is the final step, not the next one.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 5.1: Explain network troubleshooting methodology.
NEW QUESTION # 91
Which of the following should a network administrator configure when adding OT devices to an organization's architecture?
Answer: A
Explanation:
Network segmentation involves dividing a network into smaller segments or subnets. This is particularly important when integrating OT (Operational Technology) devices to ensure that these devices are isolated from other parts of the network. Segmentation helps protect the OT devices from potential threats and minimizes the impact of any security incidents. It also helps manage traffic and improves overall network performance.References:CompTIA Network+ study materials.
NEW QUESTION # 92
Which of the following ports is a secure protocol?
Answer: A
Explanation:
Port 443 is used by HTTPS (Hypertext Transfer Protocol Secure), a secure version of HTTP that uses SSL/TLS to encrypt the communication between a client and server. This ensures confidentiality and integrity of data in transit. The document states:
"Port 443 is the default port for HTTPS, which secures HTTP traffic using SSL/TLS, providing encryption and secure identification of web servers."
NEW QUESTION # 93
Which of the following network access methods is used to securely access resources, such as a corporate cloud or network, as if they were directly connected?
Answer: D
Explanation:
A client-to-site VPN (remote-access VPN) is designed to let an individual user securely connect into an organization's network over an untrusted network (like the internet) and access resources as if the user were locally connected. Network+ objectives emphasize VPNs as encrypted tunnels that provide confidentiality and integrity for traffic, commonly using technologies such as IPsec or SSL/TLS-based VPNs. With a client- to-site VPN, the user's device establishes a tunnel to the corporate VPN gateway, receives routes (and sometimes DNS settings), and can reach internal subnets and cloud resources according to policy.
A jump box/host is a hardened intermediate system used to access sensitive segments, but it does not make the user's device behave as if it is directly on the network; it provides controlled administrative access. SSH is a secure remote management protocol for connecting to a host's command line-useful for administration, not full network access to multiple internal resources. A GRE tunnel provides encapsulation but does not provide encryption by itself, so it is not inherently "securely access" unless combined with additional security (e.g., GRE over IPsec). Therefore, client-to-site VPN is the correct choice.
NEW QUESTION # 94
Which of the following protocols has a default administrative distance value of 90?
Answer: D
Explanation:
EIGRP (Enhanced Interior Gateway Routing Protocol) has a default administrative distance (AD) value of 90 for internal routes. The administrative distance is used to rate the trustworthiness of routing information received from different routing protocols. EIGRP, developed by Cisco, has an AD of 90, which is lower than that of RIP (120) and OSPF (110), making it more preferred if multiple protocols provide a route to the same destination.References:CompTIA Network+ study materials.
NEW QUESTION # 95
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