Lessons
COBOL · Expert
COBOL · Expert. Ten lessons. Open-book quizzes. Lesson 1 free.
10 lessons · The Host · Lesson 1 free
Pass all ten lessons for the certificate. Sample · Claim
Lesson 1 · On the house
Transaction batching
Idempotent jobs.
Lesson 2
Character sets
EBCDIC vs ASCII.
Lesson 3
Performance
I/O bound.
Lesson 4
Security
PII in copybooks.
Lesson 5
Legacy integration
Adapters.
Lesson 6
Static analysis
Lint shops.
Lesson 7
Debugging
DISPLAY surgically.
Lesson 8
Packed money
Decimals.
Lesson 9
Concurrency
Batch vs online.
Lesson 10
Expert capstone
Validate + write.
Sample certificate
Certificate of completion
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Certificate
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