A _______ is a consolidated network infrastructure in the cloud that replicates an on-premises network.
- Cloud Network
- Data Center
- Virtual Machine
- Virtual Private Network (VPN)
In cloud computing, a 'Cloud Network' refers to a consolidated network infrastructure in the cloud that replicates an on-premises network. It allows organizations to create virtualized network environments in the cloud.
A software engineering practice where production defects are immediately corrected without going through the standard incident management flow is termed _______.
- Agile Development
- Continuous Delivery
- Firefighting
- Zero Defect Approach
This practice is often referred to as the "Zero Defect Approach" or "Zero Bug Bounce." It emphasizes fixing production defects promptly without following the standard incident management process.
You are designing a new computer system that requires very fast temporary storage to hold data between the CPU and main memory. Which type of memory would be most appropriate?
- Cache Memory
- Hard Disk Drive (HDD)
- Optical Drive
- USB Flash Drive
The most appropriate choice for fast temporary storage between the CPU and main memory is 'Cache Memory.' It is a high-speed, volatile memory that reduces latency in data access, improving system performance.
What is the key difference between Type 1 (bare-metal) and Type 2 (hosted) hypervisors?
- Type 1 hypervisors are easier to install than Type 2 hypervisors.
- Type 1 hypervisors are more expensive than Type 2 hypervisors.
- Type 1 hypervisors are used for gaming, while Type 2 hypervisors are used for server virtualization.
- Type 1 hypervisors run directly on the physical hardware, while Type 2 hypervisors run on top of a host operating system.
The key difference is that 'Type 1 hypervisors' run directly on the physical hardware (bare-metal), while 'Type 2 hypervisors' run on top of a host operating system. Type 1 offers better performance and isolation.
Which design principle suggests that objects should be open for extension but closed for modification?
- Abstraction
- Inheritance
- Open-Closed Principle
- Polymorphism
The 'Open-Closed Principle' is a fundamental design principle in object-oriented programming. It suggests that software entities (such as classes) should be open for extension (new functionality can be added) but closed for modification (existing code remains unchanged). This encourages modularity and maintainability.
In the context of data storage, what does deduplication refer to?
- Accelerating data access
- Encrypting data
- Increasing data capacity
- Reducing data redundancy
'Deduplication' is a data reduction technique that involves eliminating duplicate copies of data, thus reducing data redundancy. This process saves storage space and improves efficiency.
For HPC applications that require vast amounts of data processing in real-time, which memory characteristic is crucial?
- Bandwidth
- Capacity
- Latency
- Volatility
In High-Performance Computing (HPC), applications often require massive data processing in real-time. In this context, 'memory bandwidth' is crucial because it determines how quickly data can be read from and written to memory. A high memory bandwidth is essential for feeding the processors with data at a rate that matches their processing capabilities, ensuring efficient execution of HPC tasks.
In data visualization, what technique would you use to visualize high-dimensional data in two or three dimensions?
- Bar Charts
- Histograms
- Pie Charts
- Principal Component Analysis (PC
'Principal Component Analysis (PCA)' is a commonly used technique in data visualization to reduce the dimensionality of high-dimensional data while preserving as much variance as possible, making it suitable for 2D or 3D visualization.
Which software engineering principle emphasizes that a system should have only one reason to change?
- DRY (Don't Repeat Yourself)
- OOP (Object-Oriented Programming)
- SRP (Single Responsibility Principle)
- YAGNI (You Ain't Gonna Need It)
The 'SRP' (Single Responsibility Principle) is a principle in software engineering that states that a module, class, or function should have only one reason to change. This helps in maintaining a system by reducing the impact of modifications.
What is the primary benefit of using Virtual Private Cloud (VPC) in a public cloud environment?
- Cost savings
- Enhanced security
- Improved internet speed
- On-premises control
The primary benefit of using a 'Virtual Private Cloud (VPC)' in a public cloud environment is 'enhanced security.' VPCs provide isolated network segments within the public cloud, allowing users to define their own network architecture and apply security measures specific to their needs.