N10-009 Latest Dumps Sheet | N10-009 Flexible Learning Mode

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CompTIA N10-009 Exam Syllabus Topics:

Topic	Details
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	Selection and configuration of wireless devices.
Topic 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.
Topic 4	Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and
Topic 5	OSI reference model concepts, Comparison of networking appliances, applications, and functions

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CompTIA Network+ Certification Exam Sample Questions (Q82-Q87):

NEW QUESTION # 82
Which of the following are the best device-hardening techniques for network security? (Select two).

A. Monitoring system logs for irregularities
B. Ensuring least privilege concepts are in place
C. Performing regular scanning of unauthorized devices
D. Changing default passwords
E. Enabling logical security such as SSO
F. Disabling unused ports

Answer: D,F

Explanation:
Disabling unused ports prevents unauthorized access and reduces the attack surface by ensuring that no inactive or unmonitored entry points are available for exploitation. Changing default passwords is critical for security because default credentials are widely known and can easily be exploited by attackers. These techniques are fundamental steps in hardening devices against unauthorized access and ensuring network security. Reference: CompTIA Network+ Exam Objectives and official study guides.

NEW QUESTION # 83
A network technician is troubleshooting network latency and has determined the issue to be occuring two network switches( Switch10 and Switch11). Symptoms reported included poor video performance and slow file copying. Given the following informtion:

Which of the following should the technician most likely do to resolve the issue?

A. Change the native VLAN on the ports.
B. Configure STP on both switches.
C. Modify Switch10 MTU value to 1500.
D. Disable automatic negotiation on Switch11.

Answer: C

NEW QUESTION # 84
A network administrator needs to assign IP addresses to a newly installed network. They choose 192.168.1.0/24 as their network address and need to create three subnets with 30 hosts on each subnet. Which of the following is a valid subnet mask that will meet the requirements?

A. 255.255.255.128
B. 255.255.255.224
C. 255.255.255.192
D. 255.255.255.240

Answer: C

Explanation:
To create three subnets with at least 30 hosts each:
Subnet Calculation: Each subnet must support 32 addresses (30 usable + 2 reserved for network and broadcast).
Bits for Subnets: Subnet mask 255.255.255.192 (/26) provides 64 addresses per subnet (4 subnets total).
Valid Subnets: Each subnet provides sufficient IPs to meet the requirement.
255.255.255.128 (A): Creates only 2 subnets, not enough for the requirement.
255.255.255.224 (C): Provides 8 subnets but only 30 addresses per subnet (28 usable), insufficient for hosts.
255.255.255.240 (D): Too restrictive, only 16 addresses per subnet (14 usable).

NEW QUESTION # 85
A network administrator's device is experiencing severe Wi-Fi interference within the corporate headquarters causing the device to constantly drop off the network. Which of the following is most likely the cause of the issue?

A. Too many client connections
B. Too much wireless reflection
C. Too many wireless repeaters
D. Too much wireless absorption

Answer: B

Explanation:
Severe Wi-Fi interference within a corporate headquarters causing devices to constantly drop off the network is most likely due to too much wireless reflection. Wireless reflection occurs when Wi-Fi signals bounce off surfaces like walls, metal, or glass, causing multipath interference. This can lead to poor signal quality and frequent disconnections. Other causes like wireless absorption, too many repeaters, or too many client connections can also affect Wi-Fi performance, but excessive reflection is a common culprit in environments with many reflective surfaces.
Reference: CompTIA Network+ Certification Exam Objectives - Wireless Networks section.

NEW QUESTION # 86
A network administrator configured a router interface as 10.0.0.95 255.255.255.240. The administrator discovers that the router is not routing packets to a web server with IP 10.0.0.81/28. Which of the following is the best explanation?

A. The web server Is In a different subnet.
B. The router interface is a broadcast address.
C. The subnet is in a private address space.
D. The IP address space is a class A network.

Answer: B

Explanation:
Understanding Subnetting:
The subnet mask 255.255.255.240 (or /28) indicates that each subnet has 16 IP addresses (14 usable addresses, 1 network address, and 1 broadcast address).
Calculating the Subnet Range:
Subnet Calculation: For the IP address 10.0.0.95 with a /28 subnet mask:
Network address: 10.0.0.80
Usable IP range: 10.0.0.81 to 10.0.0.94
Broadcast address: 10.0.0.95
Router Interface Configuration:
Broadcast Address Issue: The IP address 10.0.0.95 is the broadcast address for the subnet 10.0.0.80/28. Configuring a router interface with the broadcast address will cause routing issues as it is not a valid host address.
Comparison with Other Options:
The web server is in a different subnet: The web server (10.0.0.81) is within the same subnet range (10.0.0.80/28).
The IP address space is a class A network: While 10.0.0.0 is a Class A network, this does not explain the routing issue caused by the broadcast address.
The subnet is in a private address space: The private address space designation (RFC 1918) does not impact the routing issue related to the broadcast address configuration.
Resolution:
Reconfigure the router interface with a valid host IP address within the usable range, such as 10.0.0.94.
Reference:
CompTIA Network+ study materials on subnetting and IP address configuration.

NEW QUESTION # 87
......

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N10-009 Latest Dumps Sheet | N10-009 Flexible Learning Mode

CompTIA N10-009 Exam Syllabus Topics:

N10-009 Flexible Learning Mode & N10-009 Latest Exam Duration

CompTIA Network+ Certification Exam Sample Questions (Q82-Q87):

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