The main disadvantage of Quick Sort is that it is not a stable sorting algorithm.

The main drawback of greedy algorithms is that they may not produce the optimal solution for all problems.

Accuracy can be misleading, especially in imbalanced datasets, as it does not account for the distribution of classes.

Accuracy can be misleading in imbalanced datasets, as it may not reflect the true performance of the model.

A switch filters and forwards data to specific devices within the same network, improving network efficiency.

The main function of a web browser in relation to HTTP is to interpret HTML and render web pages for users.

Activation functions introduce non-linearity into neural networks, allowing them to learn complex patterns.

Cookies are used for session management, allowing servers to remember user sessions and preferences.

The 'Cache-Control' header is used to specify directives for caching mechanisms in both requests and responses, controlling how resources are cached.

The 'POST' method in HTTP is used to send data to the server, often resulting in a change in state or side effects on the server.

The Data Link Layer (Layer 2) provides error detection and correction, ensuring reliable data transfer over physical media.

The HTTP header provides metadata about the request or response, such as content type and length.

The main function of the Network Layer is path determination and logical addressing for data packets.

The runtime environment manages memory, handles input/output, and provides other services needed during the execution of a program.

The Spanning Tree Protocol (STP) is used to prevent switching loops in a network by creating a loop-free logical topology.

TCP (Transmission Control Protocol) provides reliable data transfer for HTTP by ensuring that data packets are delivered in order and without errors.

The main function of the TCP protocol is data segmentation, which breaks down messages into smaller packets for transmission.

The main goal of code generation is to produce machine code from the intermediate code generated during compilation.

PCA aims to reduce the number of features while preserving as much variance as possible in the data.

Dimensionality reduction aims to simplify the model while maintaining its performance.

Feature scaling ensures that all features are on a similar scale, which is important for distance-based algorithms.

The main goal of feature selection is to improve model performance by reducing overfitting and enhancing the model's ability to generalize to unseen data.

The main goal of model selection is to identify the model that generalizes best to unseen data.

Cross-validation helps reduce overfitting and provides a better assessment of model performance.

Dynamic programming involves breaking a problem into smaller subproblems, solving each subproblem just once, and storing their solutions to avoid redundant computations.

The Bellman-Ford algorithm is used to find the shortest path from a single source vertex to all other vertices in a weighted graph.

The dynamic programming approach to the Coin Change Problem focuses on minimizing the number of coins needed to make a specific amount.

The dynamic programming solution for the coin change problem calculates the minimum number of coins needed for each amount up to the target.

The main limitation of Dijkstra's algorithm is that it cannot handle graphs with negative weight edges, as it may lead to incorrect path calculations.

K-Means requires the user to specify the number of clusters in advance, which can be a limitation.