Authentic Google Certification Exam Generative-AI-Leader Questions Answers

Gemini is Google's most advanced and multimodal foundation model, capable of understanding and generating various forms of content, including text and images, from a single prompt. Its versatility makes it suitable for marketing teams that need to create diverse campaign materials without deep AI expertise. Imagen is specifically for image generation, Gemma is a family of smaller, open models, and Veo is for video generation.

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The central problem is the Large Language Model's (LLM's) knowledge cutoff, where it cannot answer questions about information that appeared after its training data was collected (e.g., recently updated product details).

Retrieval-Augmented Generation (RAG) is specifically designed to overcome this limitation. The process involves:

Retrieval: When a question is asked, the RAG system first searches an external, up-to-date knowledge source (like a vector database of current product docs).

Augmentation: It retrieves the most relevant, recent text snippets (the context).

Generation: This retrieved context is added to the user's prompt (augmentation) and sent to the LLM, forcing the model to ground its response in the current facts.

The key benefit is thus to enable the chatbot to access and utilize external, up-to-date knowledge sources (D). This ensures the answers are accurate and relevant to the most current product information, directly addressing the knowledge cutoff issue without requiring expensive model retraining.

Option B is the function of the Temperature setting, not RAG.

Option C describes an unproven and unscalable model update mechanism (fine-tuning is a separate process).

RAG is a process enhancement that prioritizes accuracy and relevance over merely reducing computation (A).

(Reference: Google Cloud documentation on RAG states that its primary purpose is to address the “knowledge cutoff” and hallucination issues of LLMs by retrieving relevant and up-to-date information from external knowledge sources at inference time and using this retrieved information to ground the LLM's generation, ensuring factual accuracy.)

The Generative AI landscape is often broken down into several functional layers: Applications, Agents, Platforms, Models, and Infrastructure.

The Infrastructure Layer is the foundation, providing the physical and virtual computing resources necessary to run and train the large models. These resources include servers, storage, networking, and most importantly, the specialized hardware accelerators required for high-volume, parallel computation.

The core hardware components are the Graphics Processing Units (GPUs) and the custom-designed Tensor Processing Units (TPUs) (A). These accelerators are optimized for the massive matrix operations fundamental to deep learning and Gen AI model training and inference.

Options B (User interfaces) and D (Tools and services) refer to the Application and Platform layers, respectively.

Option C (Pre-trained models) refers to the Model layer.

The physical hardware underpinning these abstract layers are the TPUs and GPUs.

(Reference: Google Cloud Generative AI Study Guides state that the Infrastructure Layer provides the core computing resources needed for generative AI, including the physical hardware (like servers, GPUs, and TPUs) and the essential software needed to train, store, and run AI models.)