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Businessman or User using laptop with problem safety security triangle caution warning sign alarm for notification network error and maintenance concept. warning sign exclamation.
Smartphone Displaying an Red Error Alert
Angry African American people tries to reset the Wi Fi modem due to signal loss, woman arguing and being irritated. Frustrated couple fighting over troubleshooting methods. Camera A.
Eye exam with modern autorefractor and OCT machines. Autorefractor measures refractive errors, helping determine prescriptions for glasses or contact lenses with high accuracy and efficiency

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