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[General] Pass Guaranteed Quiz CompTIA - High Pass-Rate N10-009 Training Online

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【General】 Pass Guaranteed Quiz CompTIA - High Pass-Rate N10-009 Training Online

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N10-009 exam questions are being offered in three easy-to-use and compatible formats. The CompTIA N10-009 PDF dumps file, desktop practice test software, and web-based practice test software. All three N10-009 Exam Questions format contain the CompTIA N10-009 actual questions and help you in N10-009 exam preparation entirely.
CompTIA N10-009 Exam Syllabus Topics:
TopicDetails
Topic 1
  • Network Security: This section of the exam for cybersecurity specialists and network security administrators covers  the importance of basic network security concepts, Various types of attacks and their impact on the network, application of network security features, defense techniques, and solutions.| Network Troubleshooting: For help desk technicians and network support specialists, this section covers troubleshooting methodology, troubleshooting common cabling and physical interface issues, troubleshooting common issues with network services, and use of appropriate tools or protocols to solve networking issues.
Topic 2
  • OSI reference model concepts, Comparison of networking appliances, applications, and functions
Topic 3
  • Cloud concepts and connectivity options, and Common networking ports.

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CompTIA Network+ Certification Exam Sample Questions (Q237-Q242):NEW QUESTION # 237
A customer needs six usable IP addresses. Which of the following best meets this requirement?
  • A. 255.255.255.192
  • B. 255.255.255.240
  • C. 255.255.255.128
  • D. 255.255.255.224
Answer: B
Explanation:
To meet the requirement of six usable IP addresses, the subnet mask 255.255.255.240 (also represented as /28) is the best fit. A /28 subnet provides 16 total IP addresses, out of which 14 are usable (the first address is the network address, and the last address is the broadcast address). This meets and exceeds the requirement for six usable IP addresses, ensuring there are enough addresses for future expansion if needed. The other options provide either too few or too many addresses for this specific requirement.

NEW QUESTION # 238
Which of the following attacks can cause users who are attempting to access a company website to be directed to an entirely different website?
  • A. Social engineering
  • B. Denial-of-service
  • C. ARP spoofing
  • D. DNS poisoning
Answer: D
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.Reference: CompTIA Network+ study materials.

NEW QUESTION # 239
As part of an attack, a threat actor purposefully overflows the content-addressable memory (CAM) table on a switch. Which of the following types of attacks is this scenario an example of?
  • A. DNS poisoning
  • B. Evil twin
  • C. MAC flooding
  • D. ARP spoofing
Answer: C
Explanation:
Definition of MAC Flooding:
MAC flooding is an attack where a malicious actor sends numerous fake MAC addresses to a switch, overwhelming its CAM table. The CAM table stores MAC addresses and their associated ports for efficient traffic forwarding.
Impact of MAC Flooding:
CAM Table Overflow: When the CAM table is full, the switch cannot learn new MAC addresses and is forced to broadcast traffic to all ports, leading to a degraded network performance and potential data interception.
Switch Behavior: The switch operates in a fail-open mode, treating the network as a hub, which can be exploited for eavesdropping on traffic.
Comparison with Other Attacks:
ARP Spoofing: Involves sending false ARP (Address Resolution Protocol) messages to associate the attacker's MAC address with the IP address of another device.
Evil Twin: Involves creating a rogue wireless access point that mimics a legitimate one to intercept data.
DNS Poisoning: Involves corrupting the DNS cache with false information to redirect traffic to malicious sites.
Preventive Measures:
Port Security: Configure port security on switches to limit the number of MAC addresses per port, preventing CAM table overflow.
Network Segmentation: Use VLANs to segment network traffic and limit the impact of such attacks.
Reference:
CompTIA Network+ study materials on network security threats and mitigation techniques.

NEW QUESTION # 240
A user is unable to navigate to a website because the provided URL is not resolving to the correct IP address.
Other users are able to navigate to the intended website without issue. Which of the following is most likely causing this issue?
  • A. Hosts file
  • B. Nameserver record
  • C. Self-signed certificate
  • D. IP helperANS
Answer: A
Explanation:
Role of the Hosts File:
The hosts file is a local file on a computer that maps hostnames to IP addresses. It can be used to override DNS resolution by providing a static mapping of a hostname to an IP address.
Common Issues with the Hosts File:
If an incorrect IP address is mapped to a hostname in the hosts file, it can cause the computer to resolve the hostname to the wrong IP address. This can lead to navigation issues for specific websites while other users, relying on DNS, do not face the same problem.
Why Other Options are Less Likely:
Self-signed certificate: Relates to SSL/TLS and would cause a security warning, not a navigation failure.
Nameserver record: Affects all users, not just one.
IP helper: Used to forward DHCP requests and is unrelated to DNS resolution issues.
Troubleshooting Steps:
Check the hosts file on the affected user's computer (C:WindowsSystem32driversetchosts on Windows or
/etc/hosts on Unix/Linux).
Look for entries that map the problematic hostname to an incorrect IP address and correct or remove them.
References:
CompTIA Network+ study materials and system administration documentation.

NEW QUESTION # 241
Which of the following is used tostage copies of a websitecloser to geographically dispersed users?
  • A. SAN
  • B. VPN
  • C. SDN
  • D. CDN
Answer: D
Explanation:
Comprehensive and Detailed Explanation:
AContent Delivery Network (CDN)cacheswebsite contentacross multiplegeographically distributed serverstoreduce latency and improve load timesfor users worldwide.
Breakdown of Options:
* A. VPN- Encrypts network connections,does not distribute website content.
* B. CDN-#Correct answer.Anetwork of caching serversthat delivers web content faster.
* C. SAN-Storage Area Network,not related to web content distribution.
* D. SDN-Software-defined networking, which controls network flows butdoes not stage website content.

NEW QUESTION # 242
......
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