Posts tagged “科目A”
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38 posts
AP Subject A 38 — Management and strategy mixed diagnostic: KPI, procurement, EVM, risk, and investment
The final AP Subject A management and strategy diagnostic: five original case questions on KPI, procurement, EVM, ALE, NPV, and staged decisions.
AP Subject A 37 — Cross-domain technical diagnostic: performance, DB, networks, security, availability and retries
AP Subject A technical diagnostic: page-fault units, binary search vs B-tree I/O, CIDR and TLS/auth, shared-power availability and retry idempotency in 5 original questions.
AP Subject A 36 — Facility management: from power paths, UPS and N+1/2N to airflow, path diversity and physical access
AP Subject A supplement: utility-to-rack power paths, UPS runtime, N+1 vs 2N, cold/hot aisles, seismic isolation, surge and fire, MDF/IDF path diversity, physical access and 4 original questions.
AP Subject A 35 — Distributed databases and data warehouses: from partitioning, replication, CAP and two-phase commit to ETL and OLAP
AP Subject A supplement: partitioning and sharding, replication and consistency, CAP during a partition, two-phase commit, DWH, data marts, ETL/ELT, star schema, OLAP, 5 original questions.
AP Subject A 34 — Wireless LAN: from CSMA/CA, hidden terminals and channel design to WPA3 and 802.1X
AP Subject A supplement on wireless LAN: APs and SSIDs, CSMA/CA, hidden terminals and RTS/CTS, 2.4/5/6 GHz channels, Wi-Fi 4–6E, MIMO, roaming, HaLow, WPA2/WPA3, 802.1X, 5 original questions.
AP Subject A 33 — Compilers and language processing: from lexical, syntax and semantic analysis to optimization
AP Subject A supplement on compilers: lexical, syntax and semantic analysis, three-address code, safe optimization (constant folding, CSE), code generation, worked examples and 5 original questions.
2026 Applied Information Technology Engineer Examination, Subject A — Part 3: Probability, Expected Value, and Statistics
Counting, conditional probability and Bayes' theorem, expected value and variance, descriptive statistics, and p-values for AP Subject A, with worked examples and four original questions.
Applied Information Technology Engineer Exam, Subject A, Part 4: Queueing and Throughput
M/M/1 utilization, waiting and sojourn times, unit consistency and stability, Little's law, and bottleneck throughput for AP Subject A, with worked examples and four original questions.
Applied Information Technology Engineer Exam, Subject A — Part 5: Data Structures, Searching, and Sorting
Choosing data structures, linear vs binary search, and bubble, insertion and merge sort traces with complexity and stability for AP Subject A, with four original questions.
Applied Information Technology Engineer Exam, Subject A, Part 6: Pseudocode, Recursion, Complexity, and State Transitions
Pseudocode traces, loop termination and Euclid's algorithm, recursion traces, exact counts and complexity, and state transition tables for AP Subject A, with five original questions.
2026 Applied Information Technology Engineer Exam Subject A 007 — CPU, Cache, and Performance Calculations
CPU time and clock period, weighted CPI, cache hit rate and effective access time, and pipeline timing and hazards for AP Subject A, with worked examples and five original questions.
[2026 AP Subject A #8] RAID, Availability, and Reliability
RAID capacity and fault tolerance, RAID vs backup, series and parallel reliability, and MTBF/MTTR availability for AP Subject A, with worked examples and five original questions.
Applied Information Technology Engineer Exam, Subject A #9 — OS, Virtual Memory, and Deadlock
Processes, threads and state transitions, a round-robin trace, FIFO vs LRU paging, thrashing, and deadlock safe states for AP Subject A, with five original practice questions.
AP Subject A #10 — Cloud, Virtualization, and Distributed Processing
VMs vs containers, IaaS/PaaS/SaaS shared responsibility, scale-up vs scale-out, load balancing, partial failure and idempotency for AP Subject A, with five original questions.
Hardware, Circuits, Measurement, and Control
Combinational and sequential circuits, full adders, D flip-flops, memory types, sampling, quantization and feedback control with PWM for AP Subject A, with five original questions.
UI, Accessibility, and Media-Size Calculations
UI principles, accessibility, GUI controls and usability evaluation, plus raw image, audio and video size and compression calculations for AP Subject A, with five original questions.
AP Subject A #13: Database keys, functional dependencies, and normalization
Keys and attribute closure, full, partial and transitive dependencies, anomalies, 1NF to 3NF, lossless decomposition and the BCNF boundary for AP Subject A, with five original questions.
AP Subject A #14: SQL joins, aggregation, and NULL
SQL SELECT/WHERE, INNER vs LEFT JOIN, GROUP BY/HAVING and COUNT, NULL and three-valued logic, NOT IN pitfalls and DISTINCT for AP Subject A, with five original questions.
AP Subject A 15: Transactions, Concurrency, and Recovery
ACID, COMMIT/ROLLBACK, S/X locks and deadlock, isolation levels and anomalies, and WAL-based UNDO/REDO recovery for AP Subject A, with traced examples and five original questions.
AP Subject A 16: Network Layers, TCP/UDP, and Ports
OSI and TCP/IP layers, connection devices, MAC/IP/port roles, encapsulation, TCP vs UDP, and well-known ports for AP Subject A, with a traced HTTPS connection and five original questions.
AP Subject A 17: IPv4 Subnets, CIDR, and Routing Decisions
IPv4 masks and AND, subnet ranges, equal subnetting, CIDR aggregation, longest-prefix routing, and private address ranges for AP Subject A, with worked examples and five original questions.
AP Subject A 18: DNS, HTTP, TLS, and Mail Communication
DNS roles and TTL, HTTP status codes, cookies, sessions and caching, TLS in HTTPS, HTTP/3 over QUIC, and SMTP, POP3 and IMAP for AP Subject A, with a URL trace and five original questions.
AP Subject A 19: Symmetric Keys, Public Keys, Hashes, Digital Signatures, and PKI
Symmetric vs public-key key use, hash vs MAC vs signature, hybrid encryption, and PKI chain validation with CRL/OCSP for AP Subject A, with a worked flow and five original questions.
AP Subject A 20: User Authentication, MFA, Biometrics, Authorization, and Access Control
MFA factors, OTP and SSO, authentication vs authorization, least privilege, separation of duties and RBAC, and biometric FAR/FRR for AP Subject A, with five original questions.
AP21 — Major Attack Techniques and Layered Defenses
Separate SQL injection, XSS and CSRF by root cause, layer defenses for phishing, ransomware and DDoS, and compare firewall, WAF, IDS and IPS for AP Subject A, with five original questions.
AP22 — Requirements, UML, and Object-Oriented Design
Requirements and traceability, four UML diagrams, multiplicity, encapsulation, polymorphism, cohesion and coupling for AP Subject A, with a library-loan example and five original questions.
AP23 — Testing, Quality, and Development Methods
Test levels, boundary values, decision vs condition coverage, defect density and Agile, TDD and CI/CD for AP Subject A, with worked coverage math and five original questions.
AP24 — PERT, Critical Path, EVM, and Project Management
WBS, forward and backward passes for critical path and float, PERT three-point estimates, EVM SPI, CPI and EAC, and baseline change control for AP Subject A, with five original questions.
AP25 — SLA, Incident, Problem, Change, and Release Management
SLA, SLO and SLI, availability and allowed-downtime math, incident vs problem management, and change and release flow for AP Subject A, with an outage case and five original questions.
AP26 System Audit, Internal Control, Security Risk, and Incident Handling
System audit independence and evidence, internal control and segregation of duties, ALE risk math, and incident evidence preservation for AP Subject A, with five original questions.
AP27 — System Strategy, Process Improvement, Requirements, and Procurement
Information-system strategy, EA (BA/DA/AA/TA), ECRS and BPM/BPR, requirements definition, and RFI/RFP/RFQ with weighted proposal scoring for AP Subject A, with five original questions.
AP28 — Business Analysis, Marketing, Metrics, and Technology Strategy
PEST, Five Forces, SWOT and 3C, STP vs 4P, CSF/KGI/KPI funnel math, BSC perspectives, PoC/PoV/PoB/MVP and roadmaps for AP Subject A, with one case and five original questions.
AP29 — Accounting, Break-even Analysis, and Investment Appraisal
Financial statements and ratios, fixed vs variable costs, break-even point and safety margin, and NPV, IRR, payback and WACC for AP Subject A, with four original questions.
AP30 — AI Model Evaluation, Data, and Statistical Interpretation
Data splits, overfitting and leakage, confusion-matrix precision, recall and F-measure, imbalanced data, and sampling bias for AP Subject A, with four original questions.
AP Subject A 31 — Law and Standardization
Copyright, patents, trade secrets, personal data and unauthorized access laws, contracting vs worker dispatch, and JIS/ISO standards for AP Subject A, with four original questions.
AP Subject A 32 — AP1–32 core-map mixed diagnostic: closing the database gaps
AP Subject A diagnostic closing the AP1–32 core map on database gaps: B-tree, hash, bitmap and covering indexes, page-access cost math, GRANT/REVOKE and least privilege, with five original questions.
AP Subject A Essentials 2: Logic, Sets, Truth Tables, and De Morgan's Laws
Sets and Venn diagrams, logical operations and precedence, implication, truth tables, and De Morgan's laws for AP Subject A, with worked examples and original practice questions.
AP Subject A Essentials 1: Binary, Two's Complement, and Bit Operations
Learn radix conversion, two's complement, overflow, bit masks, and shifts for the AP Subject A exam through an official past question and original diagnostics.
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