A _______ is a virtualized storage model that pools physical storage from multiple network storage devices and makes it appear as if it's a single storage device.
- DNS
- NAS
- RAID
- SAN
A 'SAN' (Storage Area Network) is a virtualized storage model that combines physical storage from various network storage devices into a single storage device. It provides high-speed data access and centralized storage management.
In a router, the table that keeps track of paths to active networks and how to reach them is known as the _______ table.
- ARP
- Destination
- Routing
- Routing Information Base (RIB)
In a router, the table that keeps track of paths to active networks and how to reach them is known as the 'Routing' table. This table is used for making forwarding decisions based on the destination address.
You are working on a real-time trading application where the order of transactions is crucial. Which data structure would be most appropriate to ensure that the first transaction entered is the first one processed?
- Binary Tree
- Hash Table
- Queue
- Stack
In real-time trading, the order of transactions is critical. A 'Queue' is the most suitable data structure to ensure the first transaction entered is the first one processed. It follows a First-In-First-Out (FIFO) order, which aligns with transaction sequence requirements.
The ITSM process that deals with defining and maintaining the live IT services catalog is called _______.
- Service Blueprint
- Service Catalog
- Service Desk Catalog
- Service Manifesto
The process you're referring to is 'Service Catalog Management.' It's a key component of IT Service Management (ITSM) and involves defining and maintaining the live IT services catalog. This catalog contains information about the available services, ensuring that stakeholders have a clear understanding of the IT services provided.
The SQL command used to modify the structure of an existing table is _______.
- ALTER TABLE
- CHANGE TABLE
- MODIFY TABLE
- UPDATE TABLE
The SQL command 'ALTER TABLE' is used to modify the structure of an existing table, such as adding, deleting, or modifying columns. It's a crucial operation in database management.
Which technique helps prevent overfitting by ignoring certain neurons during training?
- Batch Normalization
- Dropout
- Gradient Clipping
- ReLU Activation Function
The technique that helps prevent overfitting by ignoring certain neurons during training is 'Dropout.' It randomly deactivates neurons, forcing the network to learn more robust representations.
Which term refers to the practice of writing code in short, consistent cycles, often with paired programming and frequent communication with stakeholders?
- Agile Development
- Big Bang Integration Testing
- Code Refactoring
- Waterfall Methodology
'Agile Development' is a software development approach that involves writing code in short, consistent cycles called iterations or sprints. It emphasizes collaboration with stakeholders, adaptability, and continuous delivery.
Which architectural pattern in mobile app development separates an application's UI, data, and logic into three separate layers?
- Factory Method Pattern
- Model-View-Controller (MVC)
- Observer Pattern
- Singleton Pattern
The Model-View-Controller (MVC) architectural pattern separates a mobile app into three interconnected components: Model (data and logic), View (UI), and Controller (manages user input). This separation enhances code maintainability and scalability in app development.
With the rise of digital channels, a retail company wants to enhance its customer experience. What strategic initiative should they prioritize to achieve a seamless omnichannel experience?
- Increasing Traditional Store Footprint
- Manual Inventory Management and Reporting
- Restricted Payment Options and Checkout
- Unified Customer Data and Personalization
Prioritizing 'Unified Customer Data and Personalization' is crucial for achieving a seamless omnichannel experience. It involves leveraging data to provide a personalized experience across all channels, which can enhance customer satisfaction and drive business growth.
What term is used to describe a collection of data elements that have a specific order and can be indexed?
- Array
- Function
- String
- Variable
An 'array' is a data structure in programming that allows you to store a collection of data elements in a specific order, and each element can be accessed using an index.