CCDV-F Model Selection and Cost Management Practice Question
A developer needs to select a model for a code generation tool that must handle complex multi-file refactoring and advanced algorithmic logic. Which Claude 3.5 model currently provides the highest level of intelligence and coding capability for this task?
⚠ Common exam trap
Candidates often assume that older flagship models like Claude 3 Opus are always the best for coding, missing that Claude 3.5 Sonnet is currently the superior model for technical tasks.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Claude 3.5 Sonnet
In the Anthropic model hierarchy, Claude 3.5 Sonnet is currently positioned as the most capable model for coding and complex reasoning, even surpassing Claude 3 Opus in many benchmarks. For tasks involving multi-file refactoring and deep logic, it provides the best performance. Understanding model positioning is crucial for developers to ensure they are using the most capable tool for high-stakes technical work.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Claude 3 Haiku
Why it's wrong here
Haiku is optimized for speed and efficiency rather than deep reasoning or complex code generation. While it can handle simple scripts, it would likely struggle with multi-file refactoring and advanced algorithmic logic compared to the more sophisticated models in the Claude 3.5 or 3 series.
- ✓
Claude 3.5 Sonnet
Why this is correct
Claude 3.5 Sonnet is currently Anthropic's most advanced model for coding and reasoning. It outperforms Claude 3 Opus on industry benchmarks while maintaining higher speeds. This makes it the premier choice for developers building tools that require a deep understanding of complex codebases and logical structures.
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Claude 3 Opus
Why it's wrong here
While Opus was previously the top-tier model for reasoning, the release of Claude 3.5 Sonnet has provided a more capable and cost-effective alternative for coding tasks. Opus remains highly capable, but for the highest level of intelligence in the current ecosystem, 3.5 Sonnet is the recommended selection.
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Claude 2.0
Why it's wrong here
Claude 2.0 is an older generation model with significantly less reasoning power and coding proficiency than the Claude 3 and 3.5 families. It would not be an appropriate choice for advanced refactoring tasks, especially when more capable and efficient models are now available at competitive price points.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Anthropic exam blueprint
This CCDV-F practice question is part of Courseiva's free Anthropic certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CCDV-F exam.