Which RAID level provides disk mirroring for fault tolerance without striping?
- RAID 0
- RAID 1
- RAID 10
- RAID 5
RAID 1, also known as disk mirroring, is a RAID level that provides fault tolerance by duplicating data on two or more disks. It doesn't involve striping, making it a reliable choice for data redundancy.
High-Performance Computing (HPC) is commonly associated with which type of processing?
- Everyday computing tasks
- Scientific and data-intensive tasks
- Simple mathematical calculations
- Social media management
High-Performance Computing (HPC) is associated with "scientific and data-intensive tasks." These tasks involve complex simulations, modeling, and data analysis that require immense computational power, often beyond the capability of regular computers.
Which activation function in neural networks maps its input to values between 0 and 1?
- Leaky ReLU
- ReLU (Rectified Linear Unit)
- Sigmoid
- Tanh (Hyperbolic Tangent)
The activation function that maps its input to values between 0 and 1 is the 'Sigmoid' function. It's commonly used in the output layer of a neural network for binary classification tasks, where it represents probabilities.
What is the primary purpose of a network switch in a local area network (LAN)?
- Connect devices
- Connect to the internet
- Provide wireless access
- Store data temporarily
A network switch primarily serves to 'connect devices' within a local area network (LAN). It intelligently forwards data to the appropriate device based on the device's MAC address, improving network efficiency.
In HPC, what is the primary purpose of using parallel processing techniques?
- Enhancing data security
- Minimizing software complexity
- Reducing hardware costs
- Speeding up individual tasks
Parallel processing in High-Performance Computing (HPC) aims to 'speed up individual tasks' by breaking them into smaller sub-tasks that can be processed simultaneously on multiple processors, increasing overall computation speed.
What SQL clause is used to filter the results of a query based on a specified condition?
- GROUP BY
- ORDER BY
- SELECT
- WHERE
The 'WHERE' clause in SQL is used to filter the results of a query based on a specified condition. It allows you to retrieve specific data that meets certain criteria.
You have a list of tasks to complete, some of which depend on others being completed first. You want to determine a sequence to complete the tasks such that all dependencies are honored. What algorithmic approach would be most suitable?
- Greedy Algorithm
- Merge Sort
- Quick Sort
- Topological Sorting
To determine a task sequence while honoring dependencies, 'Topological Sorting' is the most appropriate approach. It is commonly used in project scheduling and task management to create a linear order of tasks in a directed acyclic graph (DAG) while ensuring all dependencies are met.
_______ is a small-sized, high-speed volatile computer memory that provides high-speed data access to the processor and stores frequently used computer programs, applications, and data.
- Cache
- Hard Drive
- RAM
- ROM
'Cache' is a type of high-speed, volatile memory used to store frequently accessed data and instructions, allowing for faster data retrieval by the processor. It acts as a bridge between slower memory (like RAM) and the processor, enhancing system performance.
Which HTTP status code indicates that the server successfully processed the request, but is not returning any content?
- 200 OK
- 204 No Content
- 404 Not Found
- 500 Internal Server Error
The '204 No Content' status code indicates that the server successfully processed the request but is not returning any additional content in the response body. It's often used for operations that have no response data.
You're developing a web application where performance is a critical concern. Which technique would be most suitable for reducing the load times of your web pages?
- Content Delivery Networks (CDNs)
- Object-Oriented Programming
- Static Code Analysis
- Waterfall Model
Content Delivery Networks (CDNs) are crucial for optimizing web page load times. CDNs distribute content to servers closer to the user, reducing latency and speeding up page loading. They cache assets and reduce the load on the origin server, improving performance.