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Which of the following devices can operate in multiple layers of the OSI model?
Which of the following devices can operate in multiple layers of the OSI model?A . HubB . SwitchC . TransceiverD . ModemView AnswerAnswer: B Explanation: Understanding Switches: Layer 2 (Data Link Layer): Traditional switches operate primarily at Layer 2, where they use MAC addresses to forward frames within a local...
Which of the following steps of the troubleshooting methodology should a technician take to confirm a theory?
Which of the following steps of the troubleshooting methodology should a technician take to confirm a theory?A . Duplicate the problem.B . Identify the symptoms.C . Gather information.D . Determine any changes.View AnswerAnswer: A Explanation: Troubleshooting Methodology: Troubleshooting involves a systematic approach to diagnosing and resolving issues. It typically includes...
Which of the following types of networks is the best solution?
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 . InfrastructureView AnswerAnswer: A Explanation: A mesh network is the best solution for providing...
Which of the following network topologies contains a direct connection between every node in the network?
Which of the following network topologies contains a direct connection between every node in the network?A . MeshB . Hub-and-spokeC . StarD . Point-to-pointView AnswerAnswer: A Explanation: In a mesh topology, every node is directly connected to every other node. This provides high redundancy and reliability, as there are multiple...
Which of the following is most likely causing this issue?
A user is unable to navigate to a website because the provided URL is not resolving to the correct IP address. Other users are able to navigate to the intended website without issue. Which of the following is most likely causing this issue?A . Hosts fileB . Self-signed certificateC ....
Which of the following should the engineer have done to prevent the issue from occurring?
A network engineer performed a migration to a new mail server. The engineer changed the MX record, verified the change was accurate, and confirmed the new mail server was reachable via the IP address in the A record. However, users are not receiving email. Which of the following should the...
Which of the following most likely determines the size of a rack for installation? (Select two).
Which of the following most likely determines the size of a rack for installation? (Select two).A . KVM sizeB . Switch depthC . Hard drive sizeD . Cooling fan speedE . Outlet amperageF . Server heightView AnswerAnswer: B Explanation: Understanding Rack Size Determination: The size of a rack for installation...
Which of the following networks would be the most appropriate for this application?
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 . 172.16.0.0/24B . 192.168.0.0/24C . 224.0.0.0/24D . 240.0.0.0/24View AnswerAnswer: C Explanation: Understanding Multicast: Multicast IP Address Range: The multicast address range is...
Which of the following steps should the architect take to troubleshoot the issue?
After installing a series of Cat 8 keystones, a data center architect notices higher than normal interference during tests. Which of the following steps should the architect take to troubleshoot the issue?A . Check to see if the end connections were wrapped in copper tape before terminating.B . Use passthrough...
Which of the following technologies will best meet this requirement?
An IT manager needs to connect ten sites in a mesh network. Each needs to be secured with reduced provisioning time. Which of the following technologies will best meet this requirement?A . SD-WANB . VXLANC . VPND . NFVView AnswerAnswer: A Explanation: Definition of SD-WAN: Software-Defined Wide Area Network (SD-WAN)...
