A+ Core 2 — Study Engine

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WINDOWS EDITIONS (220-1102)

HomeNo domain join, no BitLocker, no Remote Desktop host, no Group Policy

ProDomain join, BitLocker, Remote Desktop, Group Policy, Hyper-V

Pro for WSPro + Remote Desktop Services for workgroups, no domain required

EnterpriseAll Pro features + AppLocker, BranchCache, DirectAccess

FILESYSTEM TYPES

NTFSPermissions, encryption (EFS), journaling, large files, Windows standard

FAT324GB file limit, cross-platform, no permissions, no journaling

exFATLarge files, flash drives, no permissions, cross-platform

ext4Linux standard, journaling, permissions, large volume support

APFSmacOS/iOS, snapshots, encryption, SSD optimized

MALWARE TYPES

VirusAttaches to files, spreads on execution, requires host file

WormSelf-replicates across network, no host file needed

TrojanDisguised as legit software, opens backdoor

RansomwareEncrypts files, demands payment for key

RootkitHides deep in OS, evades detection, needs offline scan

SpywareCollects user data silently (keyloggers, adware)

BotnetCompromised systems under attacker control (C&C)

WINDOWS REGISTRY HIVES

HKLMHardware, system-wide settings — applied to all users

HKCUCurrent user settings, profile-specific

HKCRFile associations, COM object info

HKUAll user profiles on the system

HKCCCurrent hardware profile (dynamic)

KEY CLI TOOLS — WINDOWS

sfc /scannowScan and repair protected system files

DISMRepair Windows image (run before SFC if SFC fails)

chkdsk /f /rFix filesystem errors and recover bad sectors

gpupdate /forceImmediately apply Group Policy changes

msconfigStartup, boot options, safe mode toggle

regeditRegistry editor — be careful

eventvwrEvent Viewer — check logs for errors

netstat -anActive connections and listening ports

NTFS PERMISSIONS

Full ControlRead, write, execute, delete, change permissions, take ownership

ModifyRead, write, execute, delete (not change perms)

Read & ExecuteView and run files

ReadView files and attributes only

WriteCreate and modify files, cannot read

DenyAlways overrides Allow — most restrictive wins

InheritedExplicit permissions override inherited ones

SECURITY BEST PRACTICES

Least PrivilegeUsers get minimum permissions needed for their job

MFASomething you know + have + are

Account LockoutLock after X failed attempts to prevent brute force

Password PolicyComplexity, age, history, length requirements

Patch ManagementKeep OS and apps updated to close vulnerabilities

EncryptionBitLocker (drive), EFS (file), HTTPS (transit)

OPERATIONAL PROCEDURES

Change MgmtRequest → Approval → Test → Implement → Document → Review

Incident ResponseIdentify → Contain → Eradicate → Recover → Lessons Learned

Backup TypesFull (all), Incremental (since last backup), Differential (since last full)

3-2-1 Rule3 copies, 2 media types, 1 offsite

Chain of CustodyDocument who handled evidence and when

TicketingDocument every step — user info, problem, actions, resolution

LINUX COMMANDS (CORE 2)

ls -laList files with permissions and hidden files

chmodChange file permissions (755, 644, etc.)

chownChange file owner/group

ps auxList running processes

grepSearch text in files or output

sudoRun command as root/superuser

apt / yumPackage managers (Debian/Red Hat)

MOBILE DEVICE MANAGEMENT

MDMCentrally manage, enforce policy, wipe devices

BYODPersonal devices on corporate network — security risk

Corporate WipeRemove only corporate data, leave personal data

Full WipeFactory reset — removes everything

GeofencingTrigger policy based on device location

SideloadingInstalling apps outside official store — security risk

Domain Coverage — Flashcards Known

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Exam Weight Reminder

D1 Operating Systems

31%

D2 Security

25%

D3 Software Troubleshooting

22%

D4 Operational Procedures

22%

Passing score: 700/900. 90 questions, 90 minutes. PBQs are first — don't skip them.