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The N10-008 exam is a comprehensive exam that tests the candidate's knowledge of networking concepts, including LAN and WAN technologies, network protocols, network architecture, and network security. Candidates who pass the exam demonstrate that they have the skills and knowledge required to design, implement, and maintain networks. The CompTIA Network+ certification is an excellent way for professionals to advance their careers in the field of networking and increase their earning potential.
CompTIA N10-008 (CompTIA Network+ Certification) Certification Exam is an essential certification for networking professionals. CompTIA Network+ Certification Exam certification exam validates the knowledge and skills required to design, configure, manage, and troubleshoot network infrastructures. CompTIA Network+ Certification Exam certification is globally recognized and an excellent way for networking professionals to showcase their expertise and advance their careers.
NEW QUESTION # 181
A network administrator is troubleshooting a PC that cannot connect to the LAN. The administrator runs the ipconfig command at the command prompt and gets the following output:
Which of the following is misconfigured?
- A. DNS server
- B. Subnet mask
- C. Physical address
- D. DHCP server
Answer: B
Explanation:
Explanation
The subnet mask is a binary value that defines how many bits of an IP address are used to identify the network and how many bits are used to identify the host. The subnet mask also determines the size and number of subnets in a network. The ipconfig command shows the current IP configuration of a device, including the subnet mask. In this case, the subnet mask is misconfigured because it does not match the network address of the device. The device has an IP address of 192.168.1.55, which belongs to the network 192.168.1.0/24 (with a subnet mask of 255.255.255.0). However, the subnet mask is set to 225.225.225.224, which is an invalid value that does not correspond to any network prefix length. This causes the device to be unable to communicate with other devices on the same network or access the default gateway. References: CompTIA Network+ N10-008 Certification Study Guide, page 109; The Official CompTIA Network+ Student Guide (Exam N10-008), page 5-4.
NEW QUESTION # 182
Which of the following is the physical security mechanism that would MOST likely be used to enter a secure site?
- A. An access control vestibule
- B. A smart locker
- C. A firewall
- D. A landing page
Answer: A
Explanation:
Reference: https://en.wikipedia.org/wiki/Mantrap_(access_control)
NEW QUESTION # 183
Which of the following describes the BEST device to configure as a DHCP relay?
- A. Layer 2 switch
- B. Router
- C. Bridge
- D. Hub
Answer: B
Explanation:
A DHCP relay agent is a host or router that forwards DHCP packets between clients and servers.
Network administrators can use the DHCP Relay service of the SD-WAN appliances to relay requests and replies between local DHCP Clients and a remote DHCP Server. It allows local hosts to acquire dynamic IP addresses from the remote DHCP Server. Relay agent receives DHCP messages and generates a new DHCP message to send out on another interface.
NEW QUESTION # 184
A technician is trying to install a VoIP phone, but the phone is not turning on. The technician checks the cable going from the phone to the switch, and the cable is good. Which of the following actions is needed for this phone to work?
- A. Add a POE injector
- B. Reconfigure the port.
- C. Use a crossover cable.
- D. Enable MDIX.
Answer: A
NEW QUESTION # 185
The following DHCP scope was configured for a new VLAN dedicated to a large deployment of 325 loT sensors:
The first 244 loT sensors were able to connect to the TFTP server, download the configuration file, and register to an loT management system. The other sensors are being shown as offline. Which of the following should be performed to determine the MOST likely cause of the partial deployment of the sensors?
- A. Check the loT devices for a hardware failure.
- B. Check the DHCP network scope.
- C. Check whether the NTP server is online.
- D. Check the gateway connectivity to the TFTP server.
Answer: B
NEW QUESTION # 186
The process of attempting to exploit a weakness in a network after being given permission by the company is known as:
- A. penetration testing
- B. social engineering
- C. reconnaissance
- D. vulnerability scanning
Answer: A
NEW QUESTION # 187
Which of the following is the physical security mechanism that would MOST likely be used to enter a secure site?
- A. An access control vestibule
- B. A smart locker
- C. A firewall
- D. A landing page
Answer: A
Explanation:
A access control vestibule is another name for a mantrap or a secure entry system with two gateways.
NEW QUESTION # 188
An IT director is setting up new disaster and HA policies for a company. Limited downtime is critical to operations. To meet corporate requirements, the director set up two different datacenters across the country that will stay current on data and applications. In the event of an outage, the company can immediately switch from one datacenter to another. Which of the following does this BEST describe?
- A. Data mirroring
- B. Load balancing
- C. Multipathing
- D. A hot site
- E. A warm site
Answer: D
Explanation:
A hot site is a fully redundant site that can take over operations immediately if the primary site goes down. In this scenario, the company has set up two different datacenters across the country that are current on data and applications, and they can immediately switch from one datacenter to another in case of an outage. Reference:
Network+ N10-008 Objectives: 1.5 Compare and contrast disaster recovery concepts and methodologies.
NEW QUESTION # 189
A network technician was recently onboarded to a company. A manager has tasked the technician with documenting the network and has provided the technician With partial information from previous documentation.
Instructions:
Click on each switch to perform a network discovery by entering commands into the terminal. Fill in the missing information using drop-down menus provided.
Answer:
Explanation:
See the Explanation for detailed information on this simulation.
Explanation
(Note: Ips will be change on each simulation task, so we have given example answer for the understanding) To perform a network discovery by entering commands into the terminal, you can use the following steps:
Click on each switch to open its terminal window.
Enter the command show ip interface brief to display the IP addresses and statuses of the switch interfaces.
Enter the command show vlan brief to display the VLAN configurations and assignments of the switch interfaces.
Enter the command show cdp neighbors to display the information about the neighboring devices that are connected to the switch.
Fill in the missing information in the diagram using the drop-down menus provided.
Here is an example of how to fill in the missing information for Core Switch 1:
The IP address of Core Switch 1 is 192.168.1.1.
The VLAN configuration of Core Switch 1 is VLAN 1: 192.168.1.0/24, VLAN 2: 192.168.2.0/24, VLAN 3: 192.168.3.0/24.
The neighboring devices of Core Switch 1 are Access Switch 1 and Access Switch 2.
The interfaces that connect Core Switch 1 to Access Switch 1 are GigabitEthernet0/1 and GigabitEthernet0/2.
The interfaces that connect Core Switch 1 to Access Switch 2 are GigabitEthernet0/3 and GigabitEthernet0/4.
You can use the same steps to fill in the missing information for Access Switch 1 and Access Switch 2.
NEW QUESTION # 190
A network administrator determines that even when optimal wireless coverage is configured, the network users still report constant disconnections. After troubleshooting, the administrator determines that moving from one location to another causes the disconnection. Which of the following settings should provide better network stability?
- A. EIRP power setting
- B. RSSl roaming threshold
- C. Client association timeout
- D. RF attenuation ratio
Answer: B
Explanation:
Roaming threshold refers to the signal strength at which a client device will switch from one access point (AP) to another in a wireless network. The roaming threshold is usually set in terms of the received signal strength indicator (RSSI). When the signal strength drops below the roaming threshold, the client device will attempt to roam to another AP with a stronger signal. By optimizing the RSSI roaming threshold, the network administrator can ensure that the client device only switches to another AP when necessary, which can help improve network stability and reduce disconnections.
NEW QUESTION # 191
A customer hired a network consultant to provide advice on the installation of new wireless access. The customer has several devices that operate in either the 5.0GHz range or the 2.4GHz range, and the best performance must be available. Which of the following standards should the technician suggest?
- A. 802.11g
- B. 802.11a
- C. 802.11b
- D. 802.11n
Answer: D
NEW QUESTION # 192
A company that uses VoIP telephones is experiencing intermittent issues with one-way audio and dropped conversations The manufacturer says the system will work if ping times are less than 50ms. The company has recorded the following ping times:
Which of the following is MOST likely causing the issue?
- A. Attenuation
- B. Jitter
- C. VLAN mismatch
- D. Latency
Answer: B
Explanation:
Explanation
Jitter is most likely causing the issue of intermittent one-way audio and dropped conversations for the company that uses VoIP telephones. Jitter is a variation in delay of packets arriving at the destination. It can cause choppy or distorted audio quality for VoIP applications, especially over WAN links that have limited bandwidth and high latency. The recommended jitter for VoIP is less than 10ms1. The company has recorded ping times that exceed 50ms, which indicates high jitter and latency on their network. References:
https://www.voip-info.org/voip-jitter/ 1
NEW QUESTION # 193
Which of the following steps of the troubleshooting methodology would most likely include checking through each level of the OSI model after the problem has been identified?
- A. Verify functionality.
- B. Create a plan of action.
- C. Implement the solution.
- D. Establish a theory.
Answer: B
Explanation:
Creating a plan of action is the step of the troubleshooting methodology that would most likely include checking through each level of the OSI model after the problem has been identified. According to the web search results, the troubleshooting methodology consists of the following steps: 12 Define the problem: Identify the symptoms and scope of the problem, and gather relevant information from users, devices, and logs.
Establish a theory: Based on the information collected, hypothesize one or more possible causes of the problem, and rank them in order of probability.
Test the theory: Test the most probable cause first, and if it is not confirmed, eliminate it and test the next one. Repeat this process until the root cause is found or a new theory is needed.
Create a plan of action: Based on the confirmed cause, devise a solution that can resolve the problem with minimal impact and risk. The solution may involve checking through each level of the OSI model to ensure that all layers are functioning properly and that there are no configuration errors, physical damages, or logical inconsistencies34 Implement the solution: Execute the plan of action, and monitor the results. If the problem is not solved, revert to the previous state and create a new plan of action.
Verify functionality: Confirm that the problem is fully resolved and that the network is restored to normal operation. Perform preventive measures if possible to avoid recurrence of the problem.
Document the findings: Record the problem description, the solution, and the outcome. Update any relevant documentation, such as network diagrams, policies, or procedures.
Reference1: Troubleshooting Methods for Cisco IP Networks 2: Troubleshooting Methodologies - CBT IT Certification Training 3: How to use the OSI Model to Troubleshoot Networks 4: How is the OSI model used in troubleshooting? - Sage-Answer
NEW QUESTION # 194
Which of the following ports should a network administrator enable for encrypted log-in to a network switch?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
Port 22 is used by Secure Shell (SSH), which is a protocol that provides a secure and encrypted method for remote access to hosts by using public-key cryptography and challenge-response authentication. SSH can be used to log in to a network switch and configure it without exposing the credentials or commands to eavesdropping or tampering. Port 23 is used by Telnet, which is an insecure and plaintext protocol for remote access. Port 80 is used by HTTP, which is a protocol for web communication. Port 123 is used by NTP, which is a protocol for time synchronization
NEW QUESTION # 195
A company's web server is hosted at a local ISP. This is an example of:
- A. a branch office.
- B. a cloud provider.
- C. allocation.
- D. an on-premises data center.
Answer: B
NEW QUESTION # 196
Which of the following is used to elect an STP root?
- A. A switch's root port
- B. A bridge protocol data unit
- C. Interface port priority
- D. A bridge ID
Answer: B
Explanation:
"Using special STP frames known as bridge protocol data units (BPDUs), switches communicate with other switches to prevent loops from happening in the first place. Configuration BPDUs establish the topology, where one switch is elected root bridge and acts as the center of the STP universe. Each switch then uses the root bridge as a reference point to maintain a loop-free topology."
NEW QUESTION # 197
A technician is searching for a device that is connected to the network and has the device's physical network address. Which of the following should the technician review on the switch to locate the device's network port?
- A. QoS tag
- B. VLAN tag
- C. IP route table
- D. MAC table
Answer: D
Explanation:
Explanation
To locate a device's network port on a switch, a technician should review the switch's MAC address table. The MAC address table maintains a list of MAC addresses of devices connected to each port on the switch. By checking the MAC address of the device in question, the technician can identify the port to which the device is connected.
References: CompTIA Network+ Certification Study Guide, Sixth Edition by Glen E. Clarke
NEW QUESTION # 198
An office area contains two PoE-enabled WAPs. After the area was remodeled, new cable uplinks were installed in the ceiling above the fluorescent lights. However, after the WAPs were reconnected, users reported slowness and application errors. An intern reviewed the network and discovered a lot of CRC errors. A network engineer reviewed the intern's work and realized UTP cabling was used. Which of the following is the MOST likely cause of the CRC errors?
- A. Electromagnetic interference
- B. PoE and UTP incompatibility
- C. Insufficient power at the antennas
- D. Wrong cable pinout
Answer: A
Explanation:
"EMI is a problem when cables are installed near electrical devices, such as air conditioners or fluorescent light fixtures. If a network medium is placed close enough to such a device, the signal within the cable might become corrupt. Network media vary in their resistance to the effects of EMI. Standard unshielded twisted-pair (UTP) cable is susceptible to EMI, whereas fiber cable, with its light transmissions, is resistant to EMI. When deciding on a particular medium, consider where it will run and the impact EMI can have on the installation."
NEW QUESTION # 199
A network administrator is preparing new switches that will be deployed to support a network extension project. The lead network engineer has already provided documentation to ensure the switches are set up properly. Which of the following did the engineer most likely provide?
- A. Physical network diagram
- B. Baseline configurations
- C. Site survey reports
- D. Logical network diagram
Answer: B
NEW QUESTION # 200
A network administrator responds to a support ticket that was submitted by a customer who is having issues connecting to a website inside of the company network The administrator verities that the customer could not connect to a website using a URL Which of the following troubleshooting steps would be BEST for the administrator to take?
- A. Contact the ISP
- B. Attempt to connect to the site via IP address
- C. Check for certificate issues
- D. Check the NTP configuration.
Answer: B
Explanation:
The best option for the administrator to take would be to attempt to connect to the site via IP address. This will help to determine if the issue is related to the website's DNS address or if the site itself is not accessible. Checking for certificate issues may be necessary, but this should be done after the administrator has attempted to connect to the site via IP address. Contacting the ISP is unnecessary since the issue is related to the website inside of the company network, and checking the NTP configuration is not relevant to this issue.
When a customer is having issues connecting to a website using a URL, one of the first troubleshooting steps a network administrator should take is attempting to connect to the site using the IP address of the website. This will help to determine if the issue is related to a DNS resolution problem or a connectivity problem. If the administrator is able to connect to the website using the IP address, then the issue may be related to a DNS problem. However, if the administrator is still unable to connect, then the issue may be related to a connectivity problem. In either case, further troubleshooting steps will be necessary. Checking for certificate issues or NTP configuration, and contacting the ISP would not be the BEST initial steps in this scenario.
NEW QUESTION # 201
Which of the following is most likely responsible for the security and handling of personal data in Europe?
- A. PCI DSS
- B. GDPR
- C. SAML
- D. SCADA
Answer: B
Explanation:
GDPR stands for General Data Protection Regulation, which is a European Union regulation on information privacy and security. It applies to any organization that collects or processes personal data of individuals in the EU, and it sets out rules and requirements for data protection, consent, breach notification, and enforcement1 Reference1: https://en.wikipedia.org/wiki/General_Data_Protection_Regulation
NEW QUESTION # 202
You are tasked with verifying the following requirements are met in order to ensure network security.
Requirements:
Datacenter
Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage Provide a dedicated server to resolve IP addresses and hostnames correctly and handle port 53 traffic Building A Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage Provide devices to support 5 additional different office users Add an additional mobile user Replace the Telnet server with a more secure solution Screened subnet Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage Provide a server to handle external 80/443 traffic Provide a server to handle port 20/21 traffic INSTRUCTIONS Drag and drop objects onto the appropriate locations. Objects can be used multiple times and not all placeholders need to be filled.
Available objects are located in both the Servers and Devices tabs of the Drag & Drop menu.
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
Screened Subnet devices - Web server, FTP server
Building A devices - SSH server top left, workstations on all 5 on the right, laptop on bottom left DataCenter devices - DNS server.
NEW QUESTION # 203
A network administrator is investigating reports about network performance and finds high utilization on a switch uplink. The administrator is unsure whether this is an anomaly or normal behavior that will require an upgrade to resolve. Which of the following should the administrator reference to gain historical perspective?
- A. ARP table export
- B. Network performance baseline
- C. Service-level agreement
- D. Device configuration review
Answer: B
NEW QUESTION # 204
A user is having difficulty with video conferencing and is looking for assistance. Which of the following would BEST improve performance?
- A. Port mirroring
- B. Packet shaping
- C. Load balancing
- D. Quality of service
Answer: D
Explanation:
Quality of service (QoS) is a mechanism that prioritizes network traffic based on different criteria, such as application type, source and destination address, port number, etc., and allocates bandwidth and resources accordingly. QoS would best improve performance for video conferencing, as it would ensure that video traffic gets higher priority and lower latency than other types of traffic on the network. Packet shaping is a technique that controls the rate or volume of network traffic by delaying or dropping packets that exceed certain thresholds or violate certain policies, which may not improve performance for video conferencing if it causes packet loss or jitter. Port mirroring is a technique that copies traffic from one port to another port on a switch for monitoring or analysis purposes, which does not improve performance for video conferencing at all. Load balancing is a technique that distributes network traffic across multiple servers or devices for improved availability and scalability, which does not
NEW QUESTION # 205
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CompTIA Network+ certification is an excellent way to advance your career in network administration. It is recognized worldwide and is highly valued by employers in the IT industry. By obtaining this certification, you can demonstrate your expertise in network design, configuration, and troubleshooting, and gain a competitive edge in the job market.
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