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CompTIA N10-009 Exam Overview:

Certification Vendor:CompTIA
Exam Name:CompTIA Network+ Certification Exam (N10-009)
Exam Number:N10-009
Available Languages:German, English, Spanish, Portuguese, Thai, Japanese
Exam Format:Multiple-choice, Multiple-response, Performance-based questions
Real Exam Qty:Up to 90
Exam Price:USD 358 (varies by region)
Related Certifications:CompTIA A+
CompTIA Security+
Passing Score:720 (on a scale of 100-900)
Certificate Validity Period:3 years
Exam Duration:90 minutes
Recommended Training:CompTIA Network+ Training (Official)
CertMaster Learn for Network+
Exam Registration:Pearson VUE Exam Registration
CompTIA Official Certification Page
Sample Questions:CompTIA N10-009 Sample Questions
Exam Way:Online proctored or test center (Pearson VUE)
Pre Condition:No mandatory prerequisites, but CompTIA A+ or equivalent knowledge is recommended
Official Syllabus URL:https://www.comptia.org/certifications/network

>> N10-009 Quizfragen Und Antworten <<

N10-009 Prüfungsaufgaben, N10-009 Buch

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CompTIA N10-009 Prüfungsplan:

ThemaEinzelheiten
Thema 1
  • Cloud concepts and connectivity options, and Common networking ports.
Thema 2
  • Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and
Thema 3
  • Network Operations: For IT operations staff and network operations center (NOC) technicians, this part of the exam covers the purpose of organizational processes and procedures and use of network monitoring technologies.
Thema 4
  • 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.

CompTIA Network+ Certification Exam N10-009 Prüfungsfragen mit Lösungen (Q247-Q252):

247. Frage
An organization moved its DNS servers to new IP addresses. After this move, customers are no longer able to access the organization's website. Which of the following DNS entries should be updated?

Antwort: B

Begründung:
When an organization moves its DNS servers to new IP addresses, the NS (Name Server) records must be updated. The NS record defines which DNS servers are authoritative for a domain. If these records still point to the old IP addresses, clients will continue to query the outdated servers, leading to connectivity issues.


248. Frage
Which of the following most likely requires the use of subinterfaces?

Antwort: B

Begründung:
Introduction to Subinterfaces:
Subinterfaces are logical interfaces created on a single physical interface. They are used to enable a router to support multiple networks on a single physical interface.
Use Case for Subinterfaces:
Subinterfaces are commonly used in scenarios where VLANs are implemented. A router with a single physical LAN port can be configured with multiple subinterfaces, each associated with a different VLAN.
This setup allows the router to route traffic between different VLANs.
Example Configuration:
Consider a router with a single physical interface GigabitEthernet0/0 and two VLANs, 10 and 20.
interface GigabitEthernet0/0.10
encapsulation dot1Q 10
ip address 192.168.10.1 255.255.255.0
!
interface GigabitEthernet0/0.20
encapsulation dot1Q 20
ip address 192.168.20.1 255.255.255.0
The encapsulation dot1Q command specifies the VLAN ID.
Explanation of the Options:
A . A router with only one available LAN port: This is correct. Subinterfaces allow a single physical interface to manage multiple networks, making it essential for routers with limited physical interfaces.
B . A firewall performing deep packet inspection: Firewalls can use subinterfaces, but it is not a requirement for deep packet inspection.
C . A hub utilizing jumbo frames: Hubs do not use subinterfaces as they operate at Layer 1 and do not manage IP addressing.
D . A switch using Spanning Tree Protocol: STP is a protocol for preventing loops in a network and does not require subinterfaces.
Conclusion:
Subinterfaces provide a practical solution for routing between multiple VLANs on a router with limited physical interfaces. They allow network administrators to optimize the use of available hardware resources efficiently.
Reference:
CompTIA Network+ guide detailing VLAN configurations and the use of subinterfaces (see page Ref 9fasic Configuration Commands).


249. Frage
A network administrator suspects users are being sent to malware sites that are posing as legitimate sites. The network administrator investigates and discovers that user workstations are configured with incorrect DNS IP addresses. Which of the following should the network administrator implement to prevent this from happening again?

Antwort: B

Begründung:
DHCP snooping is a security feature on network switches that helps to prevent unauthorized (rogue) DHCP servers from assigning IP addresses to clients. By implementing DHCP snooping, the network administrator can restrict DHCP responses to authorized servers only, preventing unauthorized DHCP configurations, such as incorrect DNS IPs, from being assigned to clients. This helps prevent man-in-the-middle attacks where malicious actors misconfigure DNS to redirect users to fraudulent sites. (Reference: CompTIA Network+ Study Guide, Chapter on Network Security)


250. Frage
What type of attack occurs when the hosts file is altered to redirect domain queries to malicious IP addresses?

Antwort: A

Begründung:
When the hosts file is altered, local name resolution is compromised, and domain queries are redirected to malicious IP addresses. This is a form of DNS spoofing/poisoning, where false mappings trick users into visiting fraudulent websites.
* B. Phishing typically uses emails or messages to trick users, not local file modification.
* C. VLAN hopping is a Layer 2 attack to gain unauthorized network access, unrelated to DNS.
* D. ARP poisoning manipulates ARP tables on a LAN to reroute traffic, not name resolution.
References (CompTIA Network+ N10-009):
* Domain: Network Security - DNS poisoning/spoofing, host file manipulation, endpoint attacks.


251. Frage
Which of the following is the MOST appropriate solution to extend the network to a building located across the street from the main facility?

Antwort: D


252. Frage
......

N10-009 Prüfungsaufgaben: https://www.zertfragen.com/N10-009_prufung.html

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