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Showing 20 results for “ai”. More results are available below.
A+ · Hardware
RAID 0 stripes data across drives for speed with zero redundancy; one failure loses everything. RAID 1 mirrors two drives, tolerating one failure at the cost of half the capacity. RAID 5 str…
A+ · Networking
An address starting 169.254 is APIPA, self-assigned when a client cannot reach a DHCP server; it can talk to other APIPA hosts on the same segment but not the internet, so the fix is to chec…
A+ · Mobile Devices
…thinner, but risk burn-in. A dim display that shows a faint image when a torch is shone on it has a failed backlight or inverter, not a dead panel. Digitisers add touch and pen input on top …
A+ · Mobile Devices
…g-your-own-device model, MDM separates a corporate container or profile from personal data, so a selective or enterprise wipe removes company email and apps while leaving photos alone; a ful…
A+ · Mobile Devices
… Ambient light adjusts brightness. Synchronisation of mail, calendar and contacts uses ActiveSync or account-specific protocols over the network, not sensors.
A+ · Virtualization and Cloud Computing
…rst thing to check when a VM refuses to start or runs painfully slowly. Each VM needs enough RAM and disk carved from the host, and snapshots capture state for rollback.
A+ · Virtualization and Cloud Computing
… VMs to a provider. A sandbox is an isolated VM or container for testing untrusted software or new configurations where damage cannot spread; it is also how malware analysts detonate samples…
A+ · Operating Systems
…rupted ones from the component store. If SFC cannot repair because the store itself is damaged, run DISM /Online /Cleanup-Image /RestoreHealth first to repair the store, then SFC again. chkd…
A+ · Security
…ed. WPA with TKIP is deprecated. WPA2 with AES-CCMP remains acceptable, and WPA3 is the current standard with stronger encryption, protection against offline password guessing and forward se…
A+ · Security
…ks people rather than systems. Phishing is deceptive email; spear phishing targets a specific person; whaling targets executives; vishing uses voice calls and smishing uses text messages. Im…
A+ · Security
…er a given step, so the order matters more than the detail. Hook: Investigate, Quarantine, Disable, Remediate, Schedule, Enable, Educate.
A+ · Troubleshooting
… researching if needed. Three: test the theory; if it fails, form a new theory or escalate. Four: establish a plan of action and implement the solution. Five: verify full functionality and i…
A+ · Troubleshooting
…ug LEDs, which identify CPU, memory, graphics or boot failures. A power supply tester or a known-good supply rules out power. Continuous reboots or a burning smell point to power or shorted …
A+ · Operational Procedures
… analysis, a test plan and a rollback plan in case it fails. It goes to a change advisory board or approver, is communicated to affected users, then implemented in a maintenance window and f…
A+ · Operational Procedures
…a supervisor or security, and preserve the evidence. Chain of custody records who had the device, when and why at every step, so the evidence stays admissible. Do not copy, delete, browse or…
AAIA · AI security boundaries
This concept review develops the reasoning needed for ai security boundaries. Start by identifying the relevant assets, permissions, evidence and trust boundaries. Distinguish what the obser…
AAIA · Assurance and evidence
An audit evaluates evidence against defined criteria. A written policy demonstrates intended behavior; it does not prove people followed it. Select records, observations or samples that addr…
AAIA · Responsible AI evaluation
…ions. Evaluate representative subgroups and realistic failure cases, and consider privacy, misuse and human oversight. Define what should happen when confidence or evidence is insufficient. …
AAIA · Risk assessment and treatment
…equires an accountable owner. Residual risk is what remains after treatment. Reassess when the system, exposure or business tolerance changes. Worked example A risk register lists a possible…
AAIR · AI security boundaries
This concept review develops the reasoning needed for ai security boundaries. Start by identifying the relevant assets, permissions, evidence and trust boundaries. Distinguish what the obser…
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