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N10-009 Guide - N10-009 Certification Torrent

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CompTIA N10-009 Exam Syllabus Topics:

Topic
Details

Topic 1

Networking Concepts: For network administrators and IT support professionals, this domain covers

Topic 2

Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and

Topic 3

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 4

OSI reference model concepts, Comparison of networking appliances, applications, and functions

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CompTIA Network+ Certification Exam Sample Questions (Q260-Q265):

NEW QUESTION # 260
A network administrator wants to configure a backup route in case the primary route fails. A dynamic routing protocol is not installed on the router. Which of the following routing features should the administrator choose to accomplish this task?

A. Hop count
B. Administrative distance
C. Neighbor adjacency
D. Link state flooding

Answer: B

Explanation:
Introduction to Administrative Distance
Administrative distance (AD) is a value used by routers to rank routes from different routing protocols. AD represents the trustworthiness of the source of the route. Lower AD values are more preferred. If a router has multiple routes to a destination from different sources, it will choose the route with the lowest AD.
Static Routes and Backup Routes
When a dynamic routing protocol is not used, static routes can be employed. Static routes are manually configured routes. To ensure a backup route, multiple static routes to the same destination can be configured with different AD values.
Configuring Static Routes with Administrative Distance
The primary route is configured with a lower AD value, making it the preferred route. The backup route is configured with a higher AD value. In the event of the primary route failure, the router will then use the backup route.
Example Configuration:
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ip route 192.168.1.0 255.255.255.0 10.0.0.1 1
ip route 192.168.1.0 255.255.255.0 10.0.0.2 10
In the above example, 192.168.1.0/24 is the destination network.
10.0.0.1 is the next-hop IP address for the primary route with an AD of 1.
10.0.0.2 is the next-hop IP address for the backup route with an AD of 10.
Verification:
After configuration, use the show ip route command to verify that the primary route is in use and the backup route is listed as a candidate for use if the primary route fails.
Reference:
CompTIA Network+ guide explains the concept of administrative distance and its use in static routing configuration (see page Ref 9fasic Configuration Commands).

NEW QUESTION # 261
SIMULATION
You have been tasked with setting up a wireless network in an office. The network will consist of 3 Access Points and a single switch. The network must meet the following parameters:
The SSIDs need to be configured as CorpNet with a key of S3cr3t!
The wireless signals should not interfere with each other
The subnet the Access Points and switch are on should only support 30 devices maximum The Access Points should be configured to only support TKIP clients at a maximum speed INSTRUCTONS Click on the wireless devices and review their information and adjust the settings of the access points to meet the given requirements.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

Answer:

Explanation:
See explanation below.
Explanation:
On the first exhibit, the layout should be as follows
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Exhibit 2 as follows
Access Point Name AP2
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Exhibit 3 as follows
Access Point Name AP3
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NEW QUESTION # 262
A network administrator needs to connect a department to a new network segment. They need to use a DHCP server located on another network. Which of the following can the administrator use to complete this task?

A. IP Helper
B. Scope
C. Reservation
D. Exclusion

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:
An IP Helper (IP Helper Address) allows DHCP requests to pass through routers and reach a DHCP server on another network.
* DHCP broadcasts are not forwarded across routers by default, so an IP Helper Address is needed to relay the request.
* This is crucial for large networks where a single DHCP server serves multiple subnets.
* Option B (Reservation): Ensures a specific IP address is assigned to a MAC address but does not relay DHCP across networks.
* Option C (Exclusion): Prevents specific IP addresses from being assigned, but does not help with DHCP relay.
* Option D (Scope): Defines the range of IP addresses available for DHCP clients but does not assist in cross-network communication.
? Reference: CompTIA Network+ (N10-009) Official Study Guide - Section: DHCP and IP Addressing

NEW QUESTION # 263
After installing a new wireless access point, an engineer tests the device and sees that it is not performing at the rated speeds. Which of the following should the engineer do to troubleshoot the issue? (Select two.)

A. Install a wireless LAN controller.
B. Ensure a bottleneck is not coming from other devices on the network.
C. Make sure the SSID is not longer than 16 characters.
D. Install the latest firmware for the device.
E. Configure the AP in autonomous mode.
F. Create a new VLAN for the access point.

Answer: B,D

Explanation:
Troubleshooting poor performance of a newly installed access point involves multiple steps. Checking for network bottlenecks and ensuring the device firmware is up to date are crucial first steps. The document confirms:"Network bottlenecks can severely limit the performance of even the fastest wireless access points, so it's essential to verify that no other devices are causing a slowdown. In addition, keeping firmware updated ensures optimal performance and security."

NEW QUESTION # 264
What is the correct subnet mask for a /21 network?

A. 255.255.240.0
B. 255.255.224.0
C. 255.255.252.0
D. 255.255.248.0

Answer: A

Explanation:
A /21 subnet mask means 21 bits are network bits:
* 8 + 8 + 5 = 21 # leaves 11 bits for hosts.
* Subnet mask in binary: 11111111.11111111.11111000.00000000
* Converted to decimal: 255.255.248.0
Therefore:
* A. /19 = 255.255.224.0
* B. /20 = 255.255.240.0
* # C. /21 = 255.255.248.0 # correct
* D. /22 = 255.255.252.0
Answer correction: The correct option is C. 255.255.248.0, not B.
References (CompTIA Network+ N10-009):
* Domain: Networking Concepts - Subnetting, CIDR notation, dotted decimal masks.

NEW QUESTION # 265
......

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