技術者は、30 階建ての大きな建物の一部のユーザーで断続的な接続の問題が発生しているという報告を受けました。各フロアのユーザーは安定した接続を持っていますが、他のフロアには接続できません。次のデバイスのうち、問題の原因となっている可能性が最も高いのはどれですか?
正解:D
Explanation
A core switch is the most likely device causing the issue where users on each floor have stable connectivity, but do not have connectivity to other floors. A core switch is a high-performance switch that connects multiple access switches in a network. An access switch is a switch that connects end devices, such as computers and printers, to the network. A core switch acts as the backbone of the network, providing interconnection and routing between different subnets or VLANs. If the core switch is malfunctioning or misconfigured, it can prevent communication between different segments of the network, resulting in intermittent connectivity issues. References: [CompTIA Network+ Certification Exam Objectives], Core Switch vs Access Switch:
What Are the Differences?