技術者は、デバイスがネットワーク カードの物理アドレスに基づいて同じ IP アドレスのリースを維持できるようにする必要があります。技術者は次のうちどれを使用する必要がありますか?
正解:A
Explanation MAC address reservation is the technique that allows a device to maintain the same IP address lease based on the physical address of a network card. MAC address reservation is a feature of DHCP that allows network administrators to assign specific IP addresses to specific devices based on their MAC addresses. A MAC address is a unique identifier that is assigned to each network interface card (NIC) by its manufacturer. A MAC address reservation can ensure that a device always receives the same IP address from the DHCP server, regardless of its location or connection time. This can be useful for devices that need consistent network access or configuration, such as servers, printers, or cameras. References: [CompTIA Network+ Certification Exam Objectives], How to Reserve IP Addresses with DHCP Server