In a project with a strict release schedule, a merge conflict arises just before a critical deadline. How would you prioritize resolving the conflict while minimizing disruption to the release timeline?
- Delegate the conflict resolution to another team member.
- Identify critical changes for the release, prioritize resolving conflicts related to those changes first, and communicate with the team about any potential delays.
- Ignore the conflict until after the release, focusing on meeting the deadline.
- Roll back all changes, releasing the previous version without the conflicting updates.
Prioritizing conflicts based on critical changes ensures that essential features are not compromised. Effective communication is crucial to manage expectations regarding potential delays.
In database design, a _______ is a collection of database objects, such as tables, views, and indexes.
- Cluster
- Index
- Schema
- Tablespace
In database design, a schema is a collection of database objects, such as tables, views, and indexes. It provides a logical structure for organizing and accessing data in a database.
The "git merge --no-ff" command ensures a _______ merge.
- Non-Fast-Forward
- Force
- Recursive
- Annotated
The "git merge --no-ff" command ensures a Non-Fast-Forward merge. This option preserves the branch hierarchy, creating a new merge commit even if it could be fast-forwarded. It provides a cleaner history and better traceability.
Query optimization techniques can vary significantly depending on the _______ model used by the database system.
- Concurrency
- Data
- Query language
- Storage
Query optimization techniques can vary significantly depending on the query language model used by the database system. Different query languages may have distinct optimization strategies, affecting the overall performance of queries.
Which sorting algorithm has the best average-case time complexity?
- BubbleSort
- InsertionSort
- QuickSort
- SelectionSort
QuickSort typically has the best average-case time complexity among the given sorting algorithms. Its average-case performance is O(n log n), making it efficient for a wide range of scenarios. QuickSort utilizes a divide-and-conquer strategy to sort elements.
A critical component of your infrastructure failed unexpectedly. How would you use Infrastructure as Code to quickly recover and restore the system?
- Manually troubleshoot the component
- Redeploy the affected component using IaC scripts
- Rollback to a previous state manually
- Wait for the issue to resolve itself
In the event of a critical failure, Infrastructure as Code enables quick recovery by redeploying the affected component using pre-defined scripts. This allows for rapid and consistent restoration of the system to a known, stable state.
Which type of relationship is represented by a foreign key in a database?
- Many-to-Many
- Many-to-One
- One-to-Many
- One-to-One
A foreign key in a database represents a One-to-Many relationship. It signifies that the values in one column (or set of columns) correspond to values in another table's primary key column.
Authorization mechanisms often rely on defining access _______ for different user roles.
- Keys
- Permissions
- Secrets
- Tokens
Authorization mechanisms often rely on defining access permissions for different user roles. Permissions determine what actions or resources a user with a specific role can access.
What does SQL injection refer to in the context of security vulnerabilities?
- Exploiting vulnerabilities in the SQL server
- Forcing a user to reveal their SQL credentials
- Injecting malicious code into a website's frontend
- Manipulating a database using Structured Query Language
SQL injection refers to manipulating a database using Structured Query Language. It is a security vulnerability where an attacker inserts malicious SQL statements into input fields, potentially gaining unauthorized access to the database or causing data manipulation.
Which framework is commonly used for building single-page applications (SPAs) and is known for its flexibility and performance?
- Angular
- Express.js
- React
- Vue.js
React is commonly used for building single-page applications (SPAs) due to its flexibility and high performance. It allows developers to create dynamic and responsive user interfaces efficiently.