Question # 1 While troubleshooting connectivity issues, a junior network administrator is given explicit instructions to test the host's TCP/IP stack first. Which of the following commands should the network administrator run? A. ping 127.0.0.1B. ping 169.254.1.1C. ping 172.16.1.1D. ping 192.168.1.1
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A. ping 127.0.0.1
Answer Description Explanation: The loopback address 127.0.0.1 is used to test the TCP/IP stack of the local machine. Pinging this address confirms whether the local system's networking stack is functioning correctly.
Question # 2 A virtual machine has the following configuration:
•IPv4 address: 169.254.10.10
•Subnet mask: 255.255.0.0
The virtual machine can reach colocated systems but cannot reach external addresses on the Internet. Which of the following Is most likely the root cause? A. Thesubnet mask is incorrect.B. TheDHCP server is offline.C. TheIP address is an RFC1918 private address.D. TheDNS server is unreachable.
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B. TheDHCP server is offline.
Question # 3 Which of the following steps in the troubleshooting methodology would be next after putting preventive measures in place? A. Implement the solution.B. Verify system functionality.C. Establish a plan of action.D. Test the theory to determine cause.
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B. Verify system functionality.
Answer Description Explanation:
Explanation: After implementing a solution and putting preventive measures in place, the next step is to verify that the system is functioning correctly. This ensures that the issue has been fully resolved.
Question # 4 Three access points have Ethernet that runs through the ceiling. One of the access points cannot reach the internet. Which of the following tools can help identify the issue? A. Network tapB. Cable testerC. Visual fault locatorD. Toner and probe
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B. Cable tester
Answer Description Explanation:
Explanation: A cable tester is a tool that can help identify issues with the physical cabling, such as breaks or improper terminations, which may prevent the access point from reaching the internet.
Question # 5 A company wants to implement a disaster recovery site or non-critical applicance, which can tolerance a short period of downltime. Which of the followig type of sites should the company impelement to achive this goal? A. HotB. ColdC. WarmD. Passive
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C. Warm
Answer Description Explanation:
A warm site is a compromise between a hot site and a cold site, providing a balance between cost and recovery time. It is partially equipped with the necessary hardware, software, and infrastructure, allowing for a quicker recovery compared to a cold site but at a lower cost than a hot site.
Recovery Time: Warm sites can be operational within hours to a day, making them suitable for non-critical applications that can tolerate short downtimes.
Cost-Effectiveness: Warm sites are more economical than hot sites as they do not require all systems to be fully operational at all times.
Network References:
CompTIA Network+ N10-007 Official Certification Guide: Discusses disaster recovery strategies and the different types of recovery sites.
Cisco Networking Academy: Provides training on disaster recovery planning and site selection.
Network+ Certification All-in-One Exam Guide: Explains the characteristics of hot, warm, and cold sites and their use cases in disaster recovery planning.
Warm sites offer a practical solution for maintaining business continuity for non-critical applications, balancing the need for availability with cost considerations.
Question # 6 Which of the following appliances provides users with an extended footprint that allows connections from multiple devices within a designated WLAN? A. RouterB. SwitchC. Access pointD. Firewall
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C. Access point
Answer Description Explanation:
An access point (AP) provides users with an extended footprint that allows connections from multiple devices within a designated Wireless Local Area Network (WLAN).
Router: Typically used to connect different networks, not specifically for extending wireless coverage.
Switch: Used to connect devices within a wired network, not for providing wireless access.
Access Point (AP): Extends wireless network coverage, allowing multiple wireless devices to connect to the network.
Firewall: Primarily used for network security, controlling incoming and outgoing traffic based on security rules, not for providing wireless connectivity.
Network References:
CompTIA Network+ N10-007 Official Certification Guide: Explains the roles and functions of network appliances, including access points.
Cisco Networking Academy: Provides training on deploying and managing wireless networks with access points.
Network+ Certification All-in-One Exam Guide: Covers network devices and their roles in creating and managing networks.
Question # 7 A network administrator is configuring a wireless network with an ESSID. Which of the following is a user benefit of ESSID compared to SSID? A. Stronger wireless connection B. Roaming between access points C. Advanced security D. Increased throughput
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B. Roaming between access points
Answer Description Explanation:
An Extended Service Set Identifier (ESSID) allows multiple access points to share the same SSID, enabling seamless roaming for users. This means that users can move between different access points within the same ESSID without losing connection or having to reauthenticate. This provides a better user experience, especially in large environments such as office buildings or campuses.References: CompTIA Network+ study materials.
Question # 8 A network architect needs to create a wireless field network to provide reliable service to public safety vehicles. Which of the following types of networks is the best solution? A. MeshB. Ad hocC. Point-to-pointD. Infrastructure
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A. Mesh
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