Free CompTIA A+ 220-1102 Practice Question

Isolating the affected systems from the network is the best initial step, as it helps prevent the potential spread of malware to uninfected parts of the network while facilitating a safe environment for further detailed investigation. Updating antivirus software is an important subsequent action after the presence of malware is confirmed, not necessarily the first step. Reviewing recent software downloads might reveal sources of malware but does not address immediate containment. Changing network passwords is also a reactive action and does not directly deal with investigating or verifying malware symptoms.