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| Section | Objectives |
|---|---|
| Network Security | - Network hardening techniques - Access control and authentication - Security concepts and threats |
| Network Operations | - Network documentation and diagrams - Monitoring and optimization - Business continuity and disaster recovery |
| Network Troubleshooting | - Tools and diagnostic techniques - Troubleshooting methodology - Common network issues |
| Network Implementation | - Routing technologies - Network storage and virtualization - Switching technologies - Wireless networking |
| Networking Concepts | - Network topologies and types (LAN, WAN, WLAN) - IPv4 and IPv6 addressing - Ports, protocols, and services - OSI model and TCP/IP model |
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NEW QUESTION # 151
A cloud administrator must ensure that all access to social media websites is prohibited. Which of the following should the administrator use to prevent users from accessing those websites?
Answer: C
Explanation:
A content filter is the correct solution because it can block access to specific categories of websites, domains, URLs, or application types, including social media. Content filtering is commonly used to enforce acceptable use policies, reduce risk, improve productivity, and prevent users from accessing prohibited or unsafe web content. In this scenario, the requirement is to stop access to social media websites, so filtering web content by category or URL is the most direct control.
The CompTIA Network+ N10-009 objectives include network security concepts, access control, filtering, and security appliances or services. A content filter may be implemented through a secure web gateway, firewall, DNS filtering platform, proxy server, cloud security platform, or endpoint security solution.
Network Access Control, or NAC, controls whether devices are allowed to connect to the network based on identity, posture, or policy. A screened subnet, also called a DMZ, is used to isolate public-facing services. A VPN provides encrypted connectivity but does not inherently block social media access. Therefore, content filtering is the most appropriate answer.
NEW QUESTION # 152
A company wants to implement data loss prevention by restricting user access to social media platforms and personal cloud storage on workstations. Which of the following types of filtering should the company deploy to achieve these goals?
Answer: B
NEW QUESTION # 153
Which of the following traffic types requires communication to a single source at a time?
Answer: A
Explanation:
Unicast traffic is a one-to-one communication method where data is sent from a single source to a single destination at a time.
NEW QUESTION # 154
Which of the following explains what happens if a packet is lost in transit when using UDP?
Answer: A
Explanation:
UDP (User Datagram Protocol) is a connectionless protocol that does not provide built-in mechanisms for error detection, retransmission, or acknowledgments. If a UDP packet is lost in transit, the protocol itself does not handle retransmission. However, some applications usingUDP (e.g., TFTP or custom streaming protocols) may implement their own mechanisms to detect packet loss and request retransmission if needed.
Why not A? The data link layer (Layer 2) handles frame-level errors within a single network segment, not end- to-end packet loss across networks.
Why not B? The IP TTL (Time to Live) field prevents routing loops by decrementing with each hop, but IP does not handle retransmission.
Why not C? UDP does not use acknowledgments, so the sender does not expect or receive them.
Reference:CompTIA Network+ N10-009 Objective 1.4: Explain the characteristics of network topologies and protocols. The CompTIA Network+ Study Guide (e.g., Chapter 4: Network Protocols) explains that UDP is a
"fire-and-forget" protocol, and any retransmission logic must be handled by the application layer.
NEW QUESTION # 155
Which of the following is the next step to take after successfully testing a root cause theory?
Answer: A
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 # 156
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