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| Section | Weight | Objectives |
|---|---|---|
| Network Security | 14% | - Threats, vulnerabilities, and mitigation - Network hardening and secure configuration - Security concepts and frameworks - Segmentation and traffic protection - Authentication and access control |
| Network Implementations | 20% | - Physical network installation - Routing concepts and protocols - Switching technologies and configurations - Wireless standards and deployment - Network services configuration |
| Network Troubleshooting | 24% | - Tools and command-line utilities - Performance and latency problems - Connectivity issues - Wireless and security troubleshooting - Troubleshooting methodology |
| Network Operations | 19% | - Performance management and optimization - High availability and redundancy - Network monitoring and documentation - Infrastructure automation basics - Business continuity and disaster recovery |
| Networking Fundamentals | 23% | - IP addressing and subnetting - Network devices and cabling - Network topologies and types - Ports, protocols, and services - OSI and TCP/IP models |
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NEW QUESTION # 272
Which of the following cable types provides the highest possible transmission speed?
Answer: A
NEW QUESTION # 273
SIMULATION
A network technician replaced a switch and needs to reconfigure it to allow the connected devices to connect to the correct networks.
INSTRUCTIONS
Click on the appropriate port(s) on Switch 1 and Switch 3 to verify or reconfigure the correct settings:
- Ensure each device accesses only its correctly associated network
- Disable all unused switch ports
- Require fault-tolerant connections between the switches
- Only make necessary changes to complete the above requirements
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
Answer:
Explanation:
NEW QUESTION # 274
A small company has the following IP addressing strategy:
A user is unable to connect to the company fileshare server located at 192.168.10.1. The user's networking configuration is:
Which of the following will most likely correct the issue?
Answer: B
Explanation:
If the user cannot communicate with 192.168.10.1, they might be on a different subnet. Changing the subnet mask to 255.255.255.0 ensures the user and the file server are in the same subnet.
Breakdown of Options:
A: Changing the IPv4 address to 192.168.10.1 - This would conflict with the server's IP.
B: Changing the subnet mask to 255.255.255.0 - # Correct answer. Ensures both the user and the server are on the same subnet.
C: Changing the DNS servers - DNS does not affect local network connectivity.
D: Changing the physical address - The MAC address does not impact subnet communication.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 2.4: Explain subnetting and addressing concepts.
NEW QUESTION # 275
A data center interconnect using a VXLAN was recently implemented. A network engineer observes slow performance and fragmentation on the interconnect. Which of the following technologies will resolve the issue?
Answer: A
Explanation:
VXLAN (Virtual Extensible LAN) encapsulates Ethernet frames inside UDP packets, increasing packet size. This can lead to fragmentation and performance degradation unless Jumbo Frames are enabled.
NEW QUESTION # 276
A network administrator performed upgrades on a server and installed a new NIC to improve performance. Following the upgrades, usera are unable to reach the server. Which of the following is the most likely reason.
Answer: A
Explanation:
When a network administrator installs a new Network Interface Card (NIC) and users are unable to reach the server, one of the common issues is the use of an incorrect cable type. Network cables must match the specifications required by the NIC and the network infrastructure (e.g., Cat5e, Cat6 for Ethernet).
NIC Compatibility: The new NIC might require a specific type of cable to function properly. Using a cable not rated for the NIC's required speeds or capabilities can result in connectivity issues.
Cable Standards: Different NICs and network devices might need different cabling standards (straight-through vs. crossover cables, or specific fiber optic types).
Connection Types: Ensuring that the cable connectors are appropriate for the NIC ports (e.g., RJ45 for Ethernet, LC connectors for fiber optics).
NEW QUESTION # 277
......
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