CompTIA N10-008 Practice Test - Questions Answers, Page 86

An Intrusion Prevention System (IPS) is designed to inspect network traffic, identify malicious activity using signature-based rules, and block potentially harmful traffic in real time. This aligns with the requirements stated in the question.

CompTIA Network+ N10-008 Certification Study Guide1

CompTIA Network+ N10-007 vs.N10-008: What's New

Switches operate at the data link layer (Layer 2) of the OSI model and make decisions based on MAC addresses. Hubs, on the other hand, operate at the physical layer (Layer 1) and simply repeat the signals they receive to all connected devices without any filtering or decision-making.

Networking Devices -- N10-008 CompTIA Network+ : 2.1

When adding a new wired IoT device that will only communicate with the HVAC system, it is best practice to configure a dedicated VLAN. This isolates the traffic between the IoT device and the HVAC system from the rest of the network, enhancing security and network efficiency.

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Network+ (Plus) Certification | CompTIA IT Certifications

ICMP, or Internet Control Message Protocol, is part of the Network layer (Layer 3) in the OSI model. It operates at a level that handles the communication between different networks.ICMP is used for sending error messages and operational information indicating the status of the network

When a personal router and switch are installed on a network without proper configuration, they can act as a Rogue DHCP server.This means the router could start assigning IP addresses to devices on the network, which can lead to IP address conflicts and connectivity issues

Switches operate atLayer 2andLayer 3of the OSI model. Here's a brief explanation for each layer:

Layer 2 (Data Link Layer):

Switches primarily operate at this layer.

They use MAC addresses to forward frames within a local network (LAN).

Switches create and maintain MAC address tables to make forwarding decisions.

Examples of switches include Ethernet switches and VLAN switches.

Layer 3 (Network Layer):

Some advanced switches (known asLayer 3 switches) can perform routing functions.

Layer 3 switches can route traffic between different subnets within the same LAN.

They use IP addresses to make routing decisions.

Layer 3 switches combine the features of switches and routers.

When a user is unable to perform a reverse DNS lookup of an IP address to a hostname, the missing DNS record type is thePTR (Pointer)record. Here's what you need to know:

PTR (Pointer) Record:

The PTR record maps an IP address to a hostname (reverse DNS lookup).

It is used to resolve IP addresses back to domain names.

For example, if you have an IP address (e.g., 192.168.1.10), the PTR record would provide the corresponding hostname (e.g., server.example.com).

To troubleshoot high latency issues when accessing web servers, a technician should use tools like ping, nmap, and traceroute. Ping can verify the reachability of a server and measure round-trip time. Nmap can scan for open ports and detect services running on the server.Traceroute can identify the path traffic takes to reach the server and pinpoint where delays occur.Reference:CompTIA Network+ Certification Exam Objectives1.

When running Ethernet cables through raised ceilings, plenum-rated cables are the safest option.They are designed to slow the spread of flames and reduce the amount of toxic smoke produced during a fire, making them suitable for spaces with airflow for heating and air conditioning systems.Reference:CompTIA Network+ Certification Exam Objectives