Your organization has experienced a data breach. Outline the steps you would take to respond and recover from the incident.
- All of the above
- Conduct a forensic investigation
- Identify and contain the breach
- Notify affected parties and regulatory bodies
Responding to a data breach involves a comprehensive approach. Identifying and containing the breach, notifying affected parties, regulatory bodies, and conducting a forensic investigation are critical steps to minimize damage and prevent future incidents.
Explain the difference between query optimization in relational databases and NoSQL databases.
- NoSQL databases do not require query optimization since they are schema-less.
- Optimization in relational databases focuses on SQL queries and involves techniques like indexing and join strategies. NoSQL optimization varies based on the specific database type (e.g., document, key-value, graph), often emphasizing distributed and horizontal scaling.
- Optimization strategies are similar, emphasizing efficient indexing and join operations in both relational and NoSQL databases.
- Query optimization is irrelevant in NoSQL databases as they are designed to handle unstructured data without optimization.
Query optimization in relational databases involves SQL-specific techniques, while NoSQL optimization is context-dependent on the type of NoSQL database used.
You're working on a project that requires real-time data processing. Which cloud platform service would you recommend, and why?
- AWS Lambda
- Azure Stream Analytics
- Google Cloud Dataflow
- IBM Cloud Functions
For real-time data processing, Google Cloud Dataflow is a suitable choice. It allows for both batch and stream processing, making it versatile. It's fully managed, scalable, and integrates seamlessly with other Google Cloud services.
In a project, you need to efficiently find the top 5 most frequent elements in a large dataset. Which data structure and algorithm combination would you use?
- Binary Search Tree (BST)
- Hash Map with Heap
- QuickSort Algorithm
- Trie Data Structure
Using a Hash Map to track element frequencies and a Heap to efficiently find the top elements is a common approach. This combination allows constant-time lookup and log-linear time complexity for maintaining and extracting the most frequent elements.
_______ is the process of creating a new class from an existing class in OOP.
- Abstraction
- Encapsulation
- Inheritance
- Polymorphism
Inheritance is the process of creating a new class from an existing class in OOP. It allows a new class (subclass or derived class) to inherit the properties and behavior of an existing class (superclass or base class).
GitHub Flow emphasizes continuous _______ as a best practice.
- delivery
- deployment
- integration
- testing
GitHub Flow emphasizes continuous delivery as a best practice. This means that changes should be deployable at any time, ensuring a smooth and reliable delivery process.
CAP theorem states that in distributed data stores, it's impossible to simultaneously provide more than two out of three guarantees: _______ consistency, _______ availability, and _______ tolerance.
- Consistent, Available, Partition
- Consistent, Reliable, Partition
- Causal, Available, Persistent
- Consistent, Available, Tolerant
CAP theorem asserts that in a distributed system, it's impossible to achieve all three of Consistency, Availability, and Partition Tolerance simultaneously. The correct options are Consistent, Available, and Partition Tolerance.
_______ preloading is a technique used to fetch critical resources in advance to reduce latency during page load.
- Content
- Image
- Resource
- Resourceful
Resource preloading involves fetching essential assets like images, scripts, and stylesheets before they are actually needed. This minimizes latency during page load, enhancing user experience.
One of the benefits of code review is _______ , which helps team members understand different parts of the codebase.
- Bug fixing
- Code duplication
- Knowledge sharing
- Performance optimization
One of the benefits of code review is knowledge sharing, which helps team members understand different parts of the codebase. During code reviews, team members learn from each other's approaches and techniques, leading to better collaboration and understanding of the project.
The parseInt() function in JavaScript is used to convert a string to an _______.
- Array
- Float
- Integer
- Object
The parseInt() function in JavaScript is used to convert a string to an integer. It parses a string and returns an integer.