Arrays are statically allocated, meaning their size is fixed at compile time. In contrast, linked lists use dynamic allocation, allowing them to grow or shrink as needed during runtime. Static allocation is primarily used in arrays, where memory is allocated on the stack or heap, while dynamic allocation is more common in linked lists, providing flexibility in memory management.

The memory management technique that involves dividing memory into fixed-sized partitions is called segmentation. In segmentation, memory is divided into variable-sized segments based on logical divisions, such as code, data, and stack segments. This allows for more flexible memory allocation compared to fixed-sized partitions, which are characteristic of techniques like paging.

Hash tables are efficient for storing strings due to their constant-time lookup, but handling collisions and managing memory can be challenging. Depending on the hashing algorithm used, performance can vary significantly.

The OSI Model aids in troubleshooting by breaking down the network into distinct layers, allowing technicians to pinpoint where issues occur and enabling systematic problem-solving through standardized protocols and clear boundaries between layers.

Bluetooth Low Energy (BLE) is specifically designed for IoT applications, offering low power consumption and short-range communication capabilities suitable for connected devices.

Scrum is an Agile methodology that emphasizes adaptability and customer collaboration over strict planning. It encourages iterative development, frequent feedback, and a focus on delivering value to customers. Scrum teams are self-organizing and cross-functional, with a Scrum Master facilitating the process rather than dictating tasks. This approach promotes flexibility, continuous improvement, and customer satisfaction by responding to changing requirements throughout the development cycle.

Node.js clustering allows applications to utilize multiple CPU cores efficiently by creating child processes (workers) using the cluster module. Each child process runs on a separate core, enabling parallel processing and improved performance. This approach is particularly effective for scaling applications across multiple cores without relying solely on the single-threaded nature of Node.js.

The Repository pattern is commonly used in RESTful APIs to abstract the data access layer and provide a simplified interface for accessing related resources. It helps in organizing code and separating concerns by providing a centralized mechanism for handling database operations related to specific resources.

The useMemo function in React enables developers to memoize components, which optimizes performance by caching the computed value of a function. This avoids unnecessary re-computations and enhances overall efficiency.

The purpose of a circular queue is to avoid the need for resizing the queue when elements are added or removed. In a circular queue, elements are stored in a circular manner, allowing for efficient use of limited memory without the overhead of resizing operations. Additionally, a circular queue supports concurrent access to queue elements, making it suitable for scenarios where multiple processes or threads access the queue simultaneously.