Vue.js uses a _______ pattern for managing state and data binding.
- Flux
- MVVM
- Observer
- Singleton
Vue.js uses a MVVM (Model-View-ViewModel) pattern for managing state and data binding. This pattern helps in organizing and structuring code in Vue.js applications.
How does Kubernetes handle service discovery and load balancing?
- Manually configuring each service individually
- Relying on external tools not related to Kubernetes
- Through built-in mechanisms like kube-dns and kube-proxy
- Using static IP addresses
Kubernetes handles service discovery and load balancing through built-in mechanisms like kube-dns and kube-proxy. These components automatically manage DNS for the cluster and ensure that traffic is distributed evenly among the available instances of a service.
You have an array of numbers and you need to find the maximum value. How would you accomplish this using JavaScript?
- Math.max(...array)
- array.max()
- Math.maximum(array)
- maxValue(array)
To find the maximum value in an array in JavaScript, you can use the spread operator (...) along with Math.max(). This allows you to find the maximum value easily. The correct option is a concise and common approach.
Which metric is typically used to measure system performance in monitoring tools?
- CPU Utilization
- Disk Space
- Memory Usage
- Network Latency
CPU Utilization is a crucial metric for measuring system performance. It reflects the percentage of time the CPU spends on executing instructions and is a key indicator of system health. Monitoring tools often use this metric to identify potential bottlenecks or performance issues.
Regularly updating software helps protect against known _______ vulnerabilities.
- Database
- Hardware
- Network
- Software
Regularly updating software helps protect against known software vulnerabilities. Software updates often include patches that address security vulnerabilities, reducing the risk of exploitation by malicious entities.
During a code review, you encounter a disagreement between team members regarding the implementation of a feature. How would you facilitate resolution while maintaining a constructive atmosphere?
- Take a side and advocate for the preferred implementation
- Schedule a team meeting to discuss and understand each team member's perspective
- Ignore the disagreement and proceed with the code review
- Escalate the issue to higher management
Option b is the best approach. Scheduling a team meeting allows for open communication, understanding differing viewpoints, and finding a consensus, fostering a positive team atmosphere.
Which stage of CI/CD involves automatically deploying changes to a production environment?
- Continuous Delivery
- Continuous Deployment
- Continuous Integration
- Continuous Testing
Continuous Deployment is the stage of CI/CD that involves automatically deploying changes to a production environment. It aims to make the deployment process seamless and efficient.
What are access specifiers in OOP languages such as Java and C++?
- They are used for exception handling
- They control the visibility of a variable
- They define the access rights for classes, methods, and attributes
- They specify the size of data types
Access specifiers in OOP languages like Java and C++ determine the visibility and access rights of classes, methods, and attributes. The three main access specifiers are public, private, and protected. Public members are accessible from any part of the program, private members are only accessible within the same class, and protected members are accessible within the same class and its subclasses. These specifiers play a crucial role in encapsulation and defining the scope of class members.
_______ is a technique used to optimize database performance by storing frequently accessed data in memory.
- Caching
- Clustering
- Indexing
- Partitioning
Caching is a technique used to optimize database performance by storing frequently accessed data in memory, reducing the need to fetch it from the disk.
How does the concept of abstraction apply in Object-Oriented Programming?
- Abstraction allows hiding implementation details while showing the essential features of a system.
- Abstraction is not applicable in Object-Oriented Programming.
- Abstraction prevents code from being reused.
- Abstraction simplifies code by removing unnecessary details.
Abstraction in Object-Oriented Programming refers to the concept of simplifying complex systems by hiding unnecessary details while showing only the essential features of objects. It allows for managing complexity by focusing on what an object does rather than how it does it.