What Is the Best Strategy for Avoiding Off-By-One Errors

question 23

Multiple Choice

What is the best strategy for avoiding off-by-one errors?

• A)Randomly insert +1 or -1 until the program seems to work.
• B)Think through a couple of test cases and use the results to come up with a rationale for decisions.
• C)Always start a loop at 0.
• D)Never use the < operator by itself in a comparison test.

---

Definitions:

Cloud-Based Service

A service made available to users on demand via the Internet from a cloud computing provider's servers.

Architectural Model

A scaled physical or digital representation of a structure used by architects to communicate design ideas and plan buildings.

Imaging Drum

A photosensitive drum located inside a toner cartridge; attracts laser toner particles.

Laser Printer

A type of printer that uses a laser beam to produce high quality text and graphics by repeatedly passing a laser beam back and forth over a negatively charged drum to define a differentially charged image.