220-1202: CompTIA A+ Core 2 (V15) Certification Exam

A private browsing session starts without the normal browser’s active cookies and local session state, making it an appropriate first troubleshooting step when SSO access to one SaaS application may be affected by a conflicting or stale local session. Microsoft Entra guidance similarly recommends signing out and trying a different browser or a new private browser session when an active session may be using the wrong account or tenant.

Malicious applications can run persistently in the background, consuming mobile data and processor resources. That activity can cause unusual data use, device heat, and rapid battery depletion; identifying and removing such applications addresses the underlying cause.

Providing a general explanation of the troubleshooting process without disclosing other customers' details keeps the interaction professional and reassuring while protecting the confidentiality of other clients' information. Sharing another customer's specifics breaches confidentiality, dismissing the customer's concern is unprofessional, and criticizing a vendor is outside the technician's role and unprofessional.

Disabling the Guest account removes a potential anonymous-access path. Changing the default Administrator password prevents use of predictable privileged credentials, reducing the risk that an attacker can obtain administrative access. Microsoft recommends leaving the Guest account disabled because it can provide anonymous access and is a security risk.

A spreadsheet that has grown large enough that the application can no longer load it typically means the workstation lacks sufficient memory to process the file into working memory. Adding RAM gives the application the headroom it needs to open and render the full dataset. Reverting to a restore point would sacrifice the very data the user needs, and defragmenting storage or upgrading network speed has no bearing on an application's ability to load a file into memory.