Symptoms of compromise on a desktop, and what each one narrows down
Objective 3.3 · Software troubleshooting · 23% of the exam Why this matters The security domain taught the malware categories and the removal procedure. This lesson is the...
CompTIA A+ Core 2 220-1202 Lessons
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Mobile storage, battery and performance faults, and their real causes
Objective 3.2 · Software troubleshooting · 23% of the exam Why this matters These three complaints — it is full, the battery is terrible, it is slow —...
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Apps that crash, drain the battery, or refuse to update
Objective 3.2 · Software troubleshooting · 23% of the exam Why this matters Application faults on a phone are the most common mobile ticket, and the platforms deliberately...
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Mobile connectivity faults, from the software side
Objective 3.2 · Software troubleshooting · 23% of the exam Why this matters Mobile connectivity faults are reported the same way every time — "the internet isn't working...
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Performance problems that are not hardware, and proving which is which
Objective 3.1 · Software troubleshooting · 23% of the exam Why this matters "Slow" tickets are the ones most often closed with a guess, and the guess is...
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Applications that crash, hang, or will not install at all
Objective 3.1 · Software troubleshooting · 23% of the exam Why this matters Application faults are the highest-volume software ticket there is, and they have a reputation for...
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Stop errors, services and startup faults, and reading what they tell you
Objective 3.1 · Software troubleshooting · 23% of the exam Why this matters These three faults are grouped because they share a cause profile: something loads early, something...
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Windows that will not boot, and the recovery tools in the order they help
Objective 3.1 · Software troubleshooting · 23% of the exam Why this matters A machine that will not start is the highest-pressure fault in this domain: the user...
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A method for software faults, and why it is the same method as for hardware
Objective 3.1 · Software troubleshooting · 23% of the exam Why this matters Software faults feel different from hardware faults. There is nothing to inspect, nothing to swap,...
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Preventing reinfection, and the handful of controls that actually hold
Objective 2.2 · Security · 28% of the exam Why this matters A machine that has been cleaned is a machine in exactly the state it was in...
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After a removal: credentials, tokens, and the trust that does not come back by itself
Objective 2.2 · Security · 28% of the exam Why this matters The removal procedure ends with a clean machine, and a clean machine is only half the...
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The removal procedure, and why its order is the thing being examined
Objective 2.2 · Security · 28% of the exam Why this matters CompTIA publishes a malware removal procedure as an ordered list, and the order is the content....
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