CompTIA N10-009 Practice Verified Answers - Pass Your Exams For Sure! [2024]
Valid Way To Pass CompTIA Network+'s N10-009 Exam
CompTIA N10-009 Exam Syllabus Topics:
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NEW QUESTION # 20
A network administrator has been tasked with configuring a network for a new corporate office. The office consists of two buildings, separated by 50 feet with no physical connectivity. The configuration must meet the following requirements:
. Devices in both buildings should be
able to access the Internet.
. Security insists that all Internet traffic
be inspected before entering the
network.
. Desktops should not see traffic
destined for other devices.
INSTRUCTIONS
Select the appropriate network device for each location. If applicable, click on the magnifying glass next to any device which may require configuration updates and make any necessary changes.
Not all devices will be used, but all locations should be filled.
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 the step by step complete solution below.
Explanation:
* Devices in both buildings should be able to access the Internet.
* Security insists that all Internet traffic be inspected before entering the network.
* Desktops should not see traffic destined for other devices.
Here is the corrected layout with explanation:
* Building A:
* Switch: Correctly placed to connect all desktops.
* Firewall: Correctly placed to inspect all incoming and outgoing traffic.
* Building B:
* Switch: Not needed. Instead, place a Wireless Access Point (WAP) to provide wireless connectivity for laptops and mobile devices.
* Between Buildings:
* Wireless Range Extender: Correctly placed to provide connectivity between the buildings wirelessly.
* Connection to the Internet:
* Router: Correctly placed to connect to the Internet and route traffic between the buildings and the Internet.
* Firewall: The firewall should be placed between the router and the internal network to inspect all traffic before it enters the network.
* Top-left (Building A): Switch
* Bottom-left (Building A): Firewall (inspect traffic before it enters the network)
* Top-middle (Internet connection): Router
* Bottom-middle (between buildings): Wireless Range Extender
* Top-right (Building B): Wireless Access Point (WAP)
Corrected Setup:In this corrected setup, the WAP in Building B will connect wirelessly to the Wireless Range Extender, which is connected to the Router. The Router is connected to the Firewall to ensure all traffic is inspected before it enters the network.
* SSID: CORP
* Security Settings: WPA2 or WPA2 - Enterprise
* Key or Passphrase: [Enter a strong passphrase]
* Mode: [Set based on your network plan]
* Channel: [Set based on your network plan]
* Speed: Auto
* Duplex: Auto
Configuration for Wireless Range Extender:With these settings, both buildings will have secure access to the Internet, and all traffic will be inspected by the firewall before entering the network. Desktops and other devices will not see traffic intended for others, maintaining the required security and privacy.
To configure the wireless range extender for security, follow these steps:
* SSID (Service Set Identifier):
* Ensure the SSID is set to "CORP" as shown in the exhibit.
* Security Settings:
* WPA2 or WPA2 - Enterprise: Choose one of these options for stronger security.
WPA2-Enterprise provides more robust security with centralized authentication, which is ideal for a corporate environment.
* Key or Passphrase:
* If you select WPA2, enter a strong passphrase in the "Key or Passphrase" field.
* If you select WPA2 - Enterprise, you will need to configure additional settings for authentication servers, such as RADIUS, which is not shown in the exhibit.
* Wireless Mode and Channel:
* Set the appropriate mode and channel based on your network design and the environment to avoid interference. These settings are not specified in the exhibit, so set them according to your network plan.
* Wired Speed and Duplex:
* Set the speed to "Auto" unless you have specific requirements for 100 or 1000 Mbps.
* Set the duplex to "Auto" unless you need to specify half or full duplex based on your network equipment.
* Save Configuration:
* After making the necessary changes, click the "Save" button to apply the settings.
Here is how the configuration should look after adjustments:
* SSID: CORP
* Security Settings: WPA2 or WPA2 - Enterprise
* Key or Passphrase: [Enter a strong passphrase]
* Mode: [Set based on your network plan]
* Channel: [Set based on your network plan]
* Speed: Auto
* Duplex: Auto
Once these settings are configured, your wireless range extender will provide secure connectivity for devices in both buildings.
Firewall setting to to ensure complete compliance with the requirements and best security practices, consider the following adjustments and additions:
* DNS Rule: This rule allows DNS traffic from the internal network to any destination, which is fine.
* HTTPS Outbound: This rule allows HTTPS traffic from the internal network (assuming
192.169.0.1/24 is a typo and should be 192.168.0.1/24) to any destination, which is also good for secure
* web browsing.
* Management: This rule allows SSH access to the firewall for management purposes, which is necessary for administrative tasks.
* HTTPS Inbound: This rule denies inbound HTTPS traffic to the internal network, which is good unless you have a web server that needs to be accessible from the internet.
* HTTP Inbound: This rule denies inbound HTTP traffic to the internal network, which is correct for security purposes.
* Permit General Outbound Traffic: Allow general outbound traffic for web access, email, etc.
* Block All Other Traffic: Ensure that all other traffic is blocked to prevent unauthorized access.
* Correct the Network Typo:
* Ensure that the subnet 192.169.0.1/24 is corrected to 192.168.0.1/24.
* Permit General Outbound Traffic:
* Rule Name: General Outbound
* Source: 192.168.0.1/24
* Destination: ANY
* Service: ANY
* Action: PERMIT
* Deny All Other Traffic:
* Rule Name: Block All
* Source: ANY
* Destination: ANY
* Service: ANY
* Action: DENY
Suggested Additional Settings:Firewall Configuration Adjustments:Here is how your updated firewall settings should look:
Rule Name
Source
Destination
Service
Action
DNS Rule
192.168.0.1/24
ANY
DNS
PERMIT
HTTPS Outbound
192.168.0.1/24
ANY
HTTPS
PERMIT
Management
ANY
192.168.0.1/24
SSH
PERMIT
HTTPS Inbound
ANY
192.168.0.1/24
HTTPS
DENY
HTTP Inbound
ANY
192.168.0.1/24
HTTP
DENY
General Outbound
192.168.0.1/24
ANY
ANY
PERMIT
Block All
ANY
ANY
ANY
DENY
These settings ensure that:
* Internal devices can access DNS and HTTPS services externally.
* Management access via SSH is permitted.
* Inbound HTTP and HTTPS traffic is denied unless otherwise specified.
* General outbound traffic is allowed.
* All other traffic is blocked by default, ensuring a secure environment.
Make sure to save the settings after making these adjustments.
NEW QUESTION # 21
Which of the following is created to illustrate the effectiveness of wireless networking coverage in a building?
- A. Service-level agreement
- B. Heat map
- C. Logical diagram
- D. Layer 3 network diagram
Answer: B
Explanation:
* Definition of Heat Maps:
* A heat map is a graphical representation of data where individual values are represented by colors.
In the context of wireless networking, a heat map shows the wireless signal strength in different areas of a building.
* Purpose of a Heat Map:
* Heat maps are used to illustrate the effectiveness of wireless networking coverage, identify dead zones, and optimize the placement of access points (APs) to ensure adequate coverage and performance.
* Comparison with Other Options:
* Logical Diagram:Represents the logical connections and relationships within the network.
* Layer 3 Network Diagram:Focuses on the routing and IP addressing within the network.
* Service-Level Agreement (SLA):A contract that specifies the expected service levels between a service provider and a customer.
* Creation and Use:
* Heat maps are created using specialized software or tools that measure wireless signal strength throughout the building. The data collected is then used to generate a visual map, guiding network administrators in optimizing wireless coverage.
References:
* CompTIA Network+ certification materials and wireless network planning guides.
NEW QUESTION # 22
Which of the following is the next step to take after successfully testing a root cause theory?
- A. Implement the solution to the problem.
- B. Present the theory for approval.
- C. Determine resolution steps.
- D. Duplicate the problem in a lab.
Answer: A
Explanation:
Troubleshooting Methodology:
Confirming the Root Cause: After testing and confirming the theory, the next logical step is to address the issue by implementing a solution.
Implementation of the Solution:
Resolve the Issue: Implement the identified solution to rectify the problem. This step involves making necessary changes to the network configuration, replacing faulty hardware, or applying software patches.
Documentation: Document the solution and the steps taken to resolve the issue to provide a reference for future troubleshooting.
Comparison with Other Steps:
Determine Resolution Steps: This is part of the implementation process where specific actions are outlined, but the actual next step after testing is to implement those steps.
Duplicate the Problem in a Lab: This step is typically done earlier in the troubleshooting process to understand the problem, not after confirming the root cause.
Present the Theory for Approval: In some scenarios, presenting the theory might be necessary for major changes, but generally, once the root cause is confirmed, the solution should be implemented.
Final Verification:
After implementing the solution, it is important to verify that the issue is resolved and that normal operations are restored. This may involve monitoring the network and testing to ensure no further issues arise.
Reference:
CompTIA Network+ study materials on troubleshooting methodologies and best practices.
NEW QUESTION # 23
Which of the following is used to estimate the average life span of a device?
- A. RTO
- B. MTTR
- C. MTBF
- D. RPO
Answer: C
Explanation:
Understanding MTBF:
Mean Time Between Failures (MTBF): A reliability metric that estimates the average time between successive failures of a device or system.
Calculation and Importance:
Calculation: MTBF is calculated as the total operational time divided by the number of failures during that period.
Usage: Used by manufacturers and engineers to predict the lifespan and reliability of a device, helping in maintenance planning and lifecycle management.
Comparison with Other Metrics:
RTO (Recovery Time Objective): The maximum acceptable time to restore a system after a failure.
RPO (Recovery Point Objective): The maximum acceptable amount of data loss measured in time.
MTTR (Mean Time to Repair): The average time required to repair a device or system and return it to operational status.
Application:
MTBF is crucial for planning maintenance schedules, spare parts inventory, and improving the overall reliability of systems.
Reference:
CompTIA Network+ study materials on reliability and maintenance metrics.
NEW QUESTION # 24
Which of the following steps in the troubleshooting methodology includes checking logs for recent changes?
- A. Establish a plan of action.
- B. Test the theory to determine cause.
- C. Identify the problem.
- D. Document the findings and outcomes.
Answer: C
Explanation:
Checking logs for recent changes is part of the "Identify the problem" step in the CompTIA troubleshooting methodology. This step involves gathering information, including reviewing logs and documentation, to understand what might have changed or caused the issue. This preliminary analysis is critical for forming an accurate theory about the problem.
Reference: CompTIA Network+ Certification Exam Objectives - Troubleshooting section.
NEW QUESTION # 25
A network administrator needs to set up a multicast network for audio and video broadcasting. Which of the following networks would be the most appropriate for this application?
- A. 240.0.0.0/24
- B. 224.0.0.0/24
- C. 192.168.0.0/24
- D. 172.16.0.0/24
Answer: B
Explanation:
* Understanding Multicast:
* Multicast IP Address Range:The multicast address range is from 224.0.0.0 to 239.255.255.255, designated for multicast traffic.
* Multicast Applications:
* Use Case:Multicast is used for one-to-many or many-to-many communication, suitable for applications like audio and video broadcasting where the same data is sent to multiple recipients simultaneously.
* Appropriate Network Selection:
* 224.0.0.0/24 Network:This range is reserved for multicast addresses, making it the appropriate choice for setting up a multicast network.
* Comparison with Other Options:
* 172.16.0.0/24:Part of the private IP address space, used for private networks, not designated for multicast.
* 192.168.0.0/24:Another private IP address range, also not for multicast.
* 240.0.0.0/24:Reserved for future use, not suitable for multicast.
References:
* CompTIA Network+ study materials on IP address ranges and multicast.
NEW QUESTION # 26
A systems administrator is investigating why users cannot reach a Linux web server with a browser but can ping the server IP. The server is online, the web server process is running, and the link to the switch is up.
Which of the following commands should the administrator run on the server first?
- A. arp
- B. netstat
- C. traceroute
- D. tcpdump
Answer: B
Explanation:
Thenetstatcommand provides information about network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. Runningnetstaton the server can help the administrator verify that the web server process is listening on the expected port (e.g., port 80 for HTTP or port 443 for HTTPS) and that there are no issues with network connections. This is a crucial first step in diagnosing why the web server is not accessible via a browser.References:CompTIA Network+ study materials.
NEW QUESTION # 27
Users are unable to access files on their department share located on flle_server 2. The network administrator has been tasked with validating routing between networks hosting workstation A and file server 2.
INSTRUCTIONS
Click on each router to review output, identity any Issues, and configure the appropriate solution If at any time you would like to bring back the initial state of trie simulation, please click the reset All button;
Answer:
Explanation:
See the solution configuration below in Explanation.
NEW QUESTION # 28
Users are unable to access files on theirdepartment share located on file server 2.
The network administrator has been taskedwith validating routing between networks hosting workstation A and file server 2.
INSTRUCTIONS
Click on each router to review output,identify any issues, and configure theappropriate solution.
If at any time you would like to bring backthe initial state of the simulation, please clickthe Reset All button.
Answer:
Explanation:
See the solution in Explanation.
Explanation:
To validate routing between networks hosting Workstation A and File Server 2, follow these steps:
* Review Routing Tables:
* Check the routing tables of Router A, Router B, and Router C to identify any missing routes.
* Identify Missing Routes:
* Ensure that each router has routes to the networks on which Workstation A and File Server 2 are located.
* Add Static Routes:
* If a route is missing, add a static route to the relevant destination network via the correct interface.
* Routing Table:
Step-by-Step SolutionDetailed Analysis and ConfigurationRouter A:Gateway of last resort is 0.0.0.0 to network 0.0.0.0 S* 0.0.0.0/0 is directly connected, GigabitEthernet3
10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
C 10.0.4.0/22 is directly connected, GigabitEthernet2
C 10.0.6.0/24 is directly connected, GigabitEthernet2
L 10.0.6.1/32 is directly connected, GigabitEthernet2
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.27.0/30 is directly connected, GigabitEthernet3
L 172.16.27.1/32 is directly connected, GigabitEthernet3
* Routing Table:
Router B:Gateway of last resort is 0.0.0.0 to network 0.0.0.0
S* 0.0.0.0/0 is directly connected, GigabitEthernet1
10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
C 10.0.0.0/22 is directly connected, GigabitEthernet1
L 10.0.0.1/32 is directly connected, GigabitEthernet1
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.27.4/30 is directly connected, GigabitEthernet1
L 172.16.27.5/32 is directly connected, GigabitEthernet1
* Routing Table:
Router C:10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
S 10.0.0.0/22 [1/0] via GigabitEthernet1
S 10.0.4.0/22 [1/0] via GigabitEthernet2
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.27.0/30 is directly connected, GigabitEthernet2
L 172.16.27.2/32 is directly connected, GigabitEthernet2
C 172.16.27.4/30 is directly connected, GigabitEthernet1
L 172.16.27.6/32 is directly connected, GigabitEthernet1
* Install Static Route to 10.0.0.0/22 via 172.16.27.1(assuming Router C's IP is 172.16.27.1):
Configuration Steps:Router A:
Destination Prefix: 10.0.0.0
Destination Prefix Mask: 255.255.252.0
Interface: GigabitEthernet3
* Install Static Route to 10.0.4.0/22 via 172.16.27.5(assuming Router C's IP is 172.16.27.5):
Router B:
Destination Prefix: 10.0.4.0
Destination Prefix Mask: 255.255.252.0
Interface: GigabitEthernet1
* Install Static Route to 10.0.6.0/24 via 172.16.27.2(assuming Router A's IP is 172.16.27.2):
Router C:Destination Prefix: 10.0.6.0
Destination Prefix Mask: 255.255.255.0
Interface: GigabitEthernet2
Install Static Route to 10.0.0.0/22 via 172.16.27.1(assuming Router B's IP is 172.16.27.1):
Destination Prefix: 10.0.0.0
Destination Prefix Mask: 255.255.252.0
Interface: GigabitEthernet1
* Router A:
* ip route 10.0.0.0 255.255.252.0 GigabitEthernet3
* Router B:
* ip route 10.0.4.0 255.255.252.0 GigabitEthernet1
* Router C:
* ip route 10.0.6.0 255.255.255.0 GigabitEthernet2
* ip route 10.0.0.0 255.255.252.0 GigabitEthernet1
Summary of Static Routes:These configurations ensure that each router knows the correct paths to reach Workstation A and File Server 2, resolving the connectivity issue.
NEW QUESTION # 29
Which of the following is a cost-effective advantage of a split-tunnel VPN?
- A. Cloud-based traffic flows outside of the company's network.
- B. More bandwidth is required on the company's internet connection.
- C. Web traffic is filtered through a web filter.
- D. Monitoring detects insecure machines on the company's network.
Answer: A
Explanation:
A split-tunnel VPN allows certain traffic (e.g., cloud-based services) to bypass the VPN and go directly to the Internet. This reduces the amount of traffic that needs to traverse the company's VPN and Internet connection, conserving bandwidth and reducing costs. It also means that not all traffic is subject to the same level of inspection or filtering, which can improve performance for cloud-based services.References:CompTIA Network+ study materials.
NEW QUESTION # 30
Which of the following technologies are X.509 certificates most commonly associated with?
- A. PKI
- B. MFA
- C. VLAN tagging
- D. LDAP
Answer: A
Explanation:
X.509 certificates are most commonly associated with Public Key Infrastructure (PKI). These certificates are used for a variety of security functions, including digital signatures, encryption, and authentication.
* PKI: X.509 certificates are a fundamental component of PKI, used to manage encryption keys and authenticate users and devices.
* Digital Certificates: They are used to establish secure communications over networks, such as SSL/TLS for websites and secure email communication.
* Authentication and Encryption: X.509 certificates provide the means to securely exchange keys and verify identities in various applications, ensuring data integrity and confidentiality.
Network References:
* CompTIA Network+ N10-007 Official Certification Guide: Covers PKI and the role of X.509 certificates in network security.
* Cisco Networking Academy: Provides training on PKI, certificates, and secure communications.
* Network+ Certification All-in-One Exam Guide: Explains PKI, X.509 certificates, and their applications in securing network communications.
NEW QUESTION # 31
Which of the following is most closely associated with a dedicated link to a cloud environment and may not include encryption?
- A. Captive portal
- B. VPN
- C. Direct Connect
- D. Internet gateway
Answer: C
Explanation:
Direct Connect refers to a dedicated network connection between an on-premises network and a cloud service provider (such as AWS Direct Connect). This link bypasses the public internet, providing a more reliable and higher-bandwidth connection. It may not inherently include encryption because it relies on the security measures of the dedicated physical connection itself. In contrast, other options like VPN typically involve encryption as they traverse the public internet.
NEW QUESTION # 32
A research facility is expecting to see an exponential increase in global network traffic in the near future. The offices are equipped with 2.5Gbps fiber connections from the ISP, but the facility is currently only utilizing
1Gbps connections. Which of the following would need to be configured in order to use the ISP's connection speed?
- A. Port duplex
- B. Link aggregation
- C. 802.1Q tagging
- D. Network address translation
Answer: B
Explanation:
* Understanding Link Aggregation:
* Definition: Link aggregation combines multiple network connections into a single logical link to increase bandwidth and provide redundancy.
* Usage in High-Bandwidth Scenarios:
* Combining Links: By aggregating multiple 1Gbps connections, the facility can utilize the full 2.5 Gbps bandwidth provided by the ISP.
* Benefits: Enhanced throughput, load balancing, and redundancy, ensuring better utilization of available bandwidth.
* Comparison with Other Options:
* 802.1Q Tagging: Used for VLAN tagging, which does not affect the physical bandwidth utilization.
* Network Address Translation (NAT): Used for IP address translation, not related to link speed or bandwidth aggregation.
* Port Duplex: Refers to the mode of communication (full or half duplex) on a port, not the aggregation of bandwidth.
* Implementation:
* Configure link aggregation (often referred to as LACP - Link Aggregation Control Protocol) on network devices to combine multiple physical links into one logical link.
References:
* CompTIA Network+ study materials on network configuration and link aggregation.
NEW QUESTION # 33
A network administrator needs to set up a multicast network for audio and video broadcasting. Which of the following networks would be the most appropriate for this application?
- A. 240.0.0.0/24
- B. 224.0.0.0/24
- C. 192.168.0.0/24
- D. 172.16.0.0/24
Answer: B
Explanation:
The address range 224.0.0.0/24 falls within the Class D IP address range (224.0.0.0 to 239.255.255.255), which is reserved for multicast traffic. Multicast addresses are used for the delivery of information to multiple destinations simultaneously, making them ideal for applications like audio and video broadcasting. The other options (172.16.0.0/24, 192.168.0.0/24, and 240.0.0.0/24) are not suitable for multicast as they are within different IP ranges used for other purposes (private addressing and future use, respectively).
Reference: CompTIA Network+ Certification Exam Objectives - IP Addressing section.
NEW QUESTION # 34
Which of the following most likely requires the use of subinterfaces?
- A. A hub utilizing jumbo frames
- B. A switch using Spanning Tree Protocol
- C. A firewall performing deep packet inspection
- D. A router with only one available LAN port
Answer: D
Explanation:
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).
NEW QUESTION # 35
A research facility is expecting to see an exponential increase in global network traffic in the near future. The offices are equipped with 2.5Gbps fiber connections from the ISP, but the facility is currently only utilizing 1Gbps connections. Which of the following would need to be configured in order to use the ISP's connection speed?
- A. Port duplex
- B. Link aggregation
- C. 802.1Q tagging
- D. Network address translation
Answer: B
Explanation:
Understanding Link Aggregation:
Definition: Link aggregation combines multiple network connections into a single logical link to increase bandwidth and provide redundancy.
Usage in High-Bandwidth Scenarios:
Combining Links: By aggregating multiple 1Gbps connections, the facility can utilize the full 2.5Gbps bandwidth provided by the ISP.
Benefits: Enhanced throughput, load balancing, and redundancy, ensuring better utilization of available bandwidth.
Comparison with Other Options:
802.1Q Tagging: Used for VLAN tagging, which does not affect the physical bandwidth utilization.
Network Address Translation (NAT): Used for IP address translation, not related to link speed or bandwidth aggregation.
Port Duplex: Refers to the mode of communication (full or half duplex) on a port, not the aggregation of bandwidth.
Implementation:
Configure link aggregation (often referred to as LACP - Link Aggregation Control Protocol) on network devices to combine multiple physical links into one logical link.
Reference:
CompTIA Network+ study materials on network configuration and link aggregation.
NEW QUESTION # 36
A network administrator is configuring a new switch and wants to ensure that only assigned devices can connect to the switch. Which of the following should the administrator do?
- A. Disable unnecessaryservices.
- B. Configure ACLs.
- C. Implement a captive portal.
- D. Enable port security.
Answer: D
NEW QUESTION # 37
Which of the following protocols provides remote access utilizing port 22?
- A. Telnet
- B. SSH
- C. RDP
- D. TLS
Answer: B
Explanation:
SSH (Secure Shell) is a protocol used to securely connect to a remote server/system over a network. It operates on port 22 and provides encrypted communication, unlike Telnet which operates on port 23 and is not secure. TLS is used for securing HTTP connections (HTTPS) and operates on ports like 443, while RDP (Remote Desktop Protocol) is used for remote desktop connections and operates on port 3389.
Reference:
The CompTIA Network+ materials and tutorials cover SSH as the standard protocol for secure remote access, highlighting its operation on port 22.
NEW QUESTION # 38
A network administrator has been tasked with configuring a network for a new corporate office. The office consists of two buildings, separated by 50 feet with no physical connectivity. The configuration must meet the following requirements:
. Devices in both buildings should be
able to access the Internet.
. Security insists that all Internet traffic
be inspected before entering the
network.
. Desktops should not see traffic
destined for other devices.
INSTRUCTIONS
Select the appropriate network device for each location. If applicable, click on the magnifying glass next to any device which may require configuration updates and make any necessary changes.
Not all devices will be used, but all locations should be filled.
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 the step by step complete solution below.
Explanation:
* Devices in both buildings should be able to access the Internet.
* Security insists that all Internet traffic be inspected before entering the network.
* Desktops should not see traffic destined for other devices.
Here is the corrected layout with explanation:
* Building A:
* Switch: Correctly placed to connect all desktops.
* Firewall: Correctly placed to inspect all incoming and outgoing traffic.
* Building B:
* Switch: Not needed. Instead, place a Wireless Access Point (WAP) to provide wireless connectivity for laptops and mobile devices.
* Between Buildings:
* Wireless Range Extender: Correctly placed to provide connectivity between the buildings wirelessly.
* Connection to the Internet:
* Router: Correctly placed to connect to the Internet and route traffic between the buildings and the Internet.
* Firewall: The firewall should be placed between the router and the internal network to inspect all traffic before it enters the network.
Corrected Setup:
* Top-left (Building A): Switch
* Bottom-left (Building A): Firewall (inspect traffic before it enters the network)
* Top-middle (Internet connection): Router
* Bottom-middle (between buildings): Wireless Range Extender
* Top-right (Building B): Wireless Access Point (WAP)
In this corrected setup, the WAP in Building B will connect wirelessly to the Wireless Range Extender, which is connected to the Router. The Router is connected to the Firewall to ensure all traffic is inspected before it enters the network.
Configuration for Wireless Range Extender:
* SSID: CORP
* Security Settings: WPA2 or WPA2 - Enterprise
* Key or Passphrase: [Enter a strong passphrase]
* Mode: [Set based on your network plan]
* Channel: [Set based on your network plan]
* Speed: Auto
* Duplex: Auto
With these settings, both buildings will have secure access to the Internet, and all traffic will be inspected by the firewall before entering the network. Desktops and other devices will not see traffic intended for others, maintaining the required security and privacy.
To configure the wireless range extender for security, follow these steps:
* SSID (Service Set Identifier):
* Ensure the SSID is set to "CORP" as shown in the exhibit.
* Security Settings:
* WPA2 or WPA2 - Enterprise: Choose one of these options for stronger security.
WPA2-Enterprise provides more robust security with centralized authentication, which is ideal for a corporate environment.
* Key or Passphrase:
* If you select WPA2, enter a strong passphrase in the "Key or Passphrase" field.
* If you select WPA2 - Enterprise, you will need to configure additional settings for authentication servers, such as RADIUS, which is not shown in the exhibit.
* Wireless Mode and Channel:
* Set the appropriate mode and channel based on your network design and the environment to avoid interference. These settings are not specified in the exhibit, so set them according to your network plan.
* Wired Speed and Duplex:
* Set the speed to "Auto" unless you have specific requirements for 100 or 1000 Mbps.
* Set the duplex to "Auto" unless you need to specify half or full duplex based on your network equipment.
* Save Configuration:
* After making the necessary changes, click the "Save" button to apply the settings.
Here is how the configuration should look after adjustments:
* SSID: CORP
* Security Settings: WPA2 or WPA2 - Enterprise
* Key or Passphrase: [Enter a strong passphrase]
* Mode: [Set based on your network plan]
* Channel: [Set based on your network plan]
* Speed: Auto
* Duplex: Auto
Once these settings are configured, your wireless range extender will provide secure connectivity for devices in both buildings.
Firewall setting to to ensure complete compliance with the requirements and best security practices, consider the following adjustments and additions:
* DNS Rule: This rule allows DNS traffic from the internal network to any destination, which is fine.
* HTTPS Outbound: This rule allows HTTPS traffic from the internal network (assuming
192.169.0.1/24 is a typo and should be 192.168.0.1/24) to any destination, which is also good for secure web browsing.
* Management: This rule allows SSH access to the firewall for management purposes, which is necessary for administrative tasks.
* HTTPS Inbound: This rule denies inbound HTTPS traffic to the internal network, which is good unless you have a web server that needs to be accessible from the internet.
* HTTP Inbound: This rule denies inbound HTTP traffic to the internal network, which is correct for security purposes.
Suggested Additional Settings:
* Permit General Outbound Traffic: Allow general outbound traffic for web access, email, etc.
* Block All Other Traffic: Ensure that all other traffic is blocked to prevent unauthorized access.
Firewall Configuration Adjustments:
* Correct the Network Typo:
* Ensure that the subnet 192.169.0.1/24 is corrected to 192.168.0.1/24.
* Permit General Outbound Traffic:
* Rule Name: General Outbound
* Source: 192.168.0.1/24
* Destination: ANY
* Service: ANY
* Action: PERMIT
* Deny All Other Traffic:
* Rule Name: Block All
* Source: ANY
* Destination: ANY
* Service: ANY
* Action: DENY
Here is how your updated firewall settings should look:
Rule Name
Source
Destination
Service
Action
DNS Rule
192.168.0.1/24
ANY
DNS
PERMIT
HTTPS Outbound
192.168.0.1/24
ANY
HTTPS
PERMIT
Management
ANY
192.168.0.1/24
SSH
PERMIT
HTTPS Inbound
ANY
192.168.0.1/24
HTTPS
DENY
HTTP Inbound
ANY
192.168.0.1/24
HTTP
DENY
General Outbound
192.168.0.1/24
ANY
ANY
PERMIT
Block All
ANY
ANY
ANY
DENY
These settings ensure that:
* Internal devices can access DNS and HTTPS services externally.
* Management access via SSH is permitted.
* Inbound HTTP and HTTPS traffic is denied unless otherwise specified.
* General outbound traffic is allowed.
* All other traffic is blocked by default, ensuring a secure environment.
Make sure to save the settings after making these adjustments.
NEW QUESTION # 39
A network administrator wants users to be able to authenticate to the corporate network using a port-based authentication framework when accessing both wired and wireless devices. Which of the following is the best security feature to accomplish this task?
- A. 802.1X
- B. MAC filtering
- C. Port security
- D. Access control list
Answer: A
Explanation:
802.1X is a port-based network access control (PNAC) protocol that provides an authentication mechanism to devices wishing to connect to a LAN or WLAN. It is widely used for secure network access, ensuring that only authenticated devices can access the network, whether they are connecting via wired or wireless means. 802.1X works in conjunction with an authentication server, such as RADIUS, to validate the credentials of devices trying to connect.
Reference: CompTIA Network+ study materials.
NEW QUESTION # 40
A company is implementing a wireless solution in a high-density environment. Which of the following 802.11 standards is used when a company is concerned about device saturation and converage?
- A. 802.11n
- B. 802.11g
- C. 802.11ac
- D. 802.11ax
Answer: D
Explanation:
802.11ax, also known as Wi-Fi 6, is designed for high-density environments and improves device saturation and coverage compared to previous standards.
* 802.11ac: While it offers high throughput, it is not optimized for high-density environments as effectively as 802.11ax.
* 802.11ax (Wi-Fi 6): Introduces features like OFDMA, MU-MIMO, and BSS Coloring, which enhance performance in crowded environments, reduce latency, and increase the number of devices that can be connected simultaneously.
* 802.11g and 802.11n: Older standards that do not offer the same level of efficiency or support for high device density as 802.11ax.
Network References:
* CompTIA Network+ N10-007 Official Certification Guide: Covers the 802.11 standards and their capabilities.
* Cisco Networking Academy: Provides training on Wi-Fi technologies and best practices for high-density deployments.
* Network+ Certification All-in-One Exam Guide: Discusses the various 802.11 standards and their applications in different environments.
NEW QUESTION # 41
SIMULATION
After a recent power outage, users are reporting performance issues accessing the application servers. Wireless users are also reporting intermittent Internet issues.
INSTRUCTIONS
Click on each tab at the top of the screen. Select a widget to view information, then use the drop-down menus to answer the associated questions. 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 the answer and solution below
Explanation:
Network Health:
WAN 2 appears to have a lower average latency and loss percentage, which would make it the preferred WAN station for VoIP traffic. VoIP traffic requires low latency and packet loss to ensure good voice quality and reliability. WAN 1 seems to have higher RAM and processor usage, which could also affect the performance of VoIP traffic.
Here's the summary of the key metrics for WAN 1 and WAN 2 from the image provided:
WAN 1:
Uplink Speed: 10G
Total Usage: 26.969GB Up / 1.748GB Down
Average Throughput: 353MBps Up / 23.42MBps Down
Loss: 2.51%
Average Latency: 24ms
Jitter: 9.5ms
WAN 2:
Uplink Speed: 1G
Total Usage: 930GB Up / 138GB Down
Average Throughput: 12.21MBps Up / 1.82MBps Down
Loss: 0.01%
Average Latency: 11ms
Jitter: 3.9ms
For VoIP traffic, low latency and jitter are particularly important to ensure voice quality. While WAN 1 has higher bandwidth and throughput, it also has higher latency and jitter compared to WAN 2. However, WAN 2 has much lower loss, lower latency, and lower jitter, which are more favorable for VoIP traffic that is sensitive to delays and variation in packet arrival times.
Given this information, WAN 2 would generally be preferred for VoIP traffic due to its lower latency, lower jitter, and significantly lower loss percentage, despite its lower bandwidth compared to WAN 1. The high bandwidth of WAN 1 may be more suitable for other types of traffic that are less sensitive to latency and jitter, such as bulk data transfers.
Device Monitoring:
the device that is experiencing connectivity issues is the APP Server or Router 1, which has a status of Down. This means that the server is not responding to network requests or sending any dat a. You may want to check the physical connection, power supply, and configuration of the APP Server to troubleshoot the problem.
NEW QUESTION # 42
......
CompTIA N10-009 Pre-Exam Practice Tests | Exam-Killer: https://www.exam-killer.com/N10-009-valid-questions.html
N10-009 practice test questions, answers, explanations: https://drive.google.com/open?id=1rOBXaQ1XIpo_FNGrhyJmKOOieKmbMFAS
