10+ DAZN Interview Questions and Answers

Yes, I have experience in handling code repos and have used various third-party libraries.

• I have experience in using Git for version control and have managed code repositories on GitHub and Bitbucket.

• I have used third-party libraries such as Retrofit, OkHttp, Gson, and Picasso for network operations, JSON parsing, and image loading respectively.

• I have also used libraries like ButterKnife and Dagger for dependency injection and RxJava for reactive programming.

• I make sure to ke...read more

File storage stores data in files and folders, while block storage stores data in blocks or chunks.

• File storage organizes data in a hierarchical structure of files and folders, similar to a traditional file system.

• Block storage breaks data into blocks or chunks and stores them in a raw format without any file system structure.

• File storage is commonly used for storing documents, images, videos, etc., while block storage is often used for databases, virtual machines, and other ...read more

To troubleshoot a server, start by checking for hardware issues, then move on to software problems and network connectivity.

• Check hardware components such as power supply, CPU, RAM, and storage devices for any issues or failures.

• Review system logs and error messages to identify any software-related issues or conflicts.

• Verify network connectivity by checking cables, switches, routers, and firewall settings.

• Use diagnostic tools like ping, traceroute, and netstat to troubleshoot...read more

To check open ports, use tools like netstat, nmap, or telnet

• Use netstat command to display all open ports on a system

• Use nmap tool to scan for open ports on a remote system

• Use telnet command to check if a specific port is open on a remote host

Use Instruments tool to identify memory leaks in iOS projects

• Use Instruments tool provided by Xcode to run the app and analyze memory usage

• Look for memory leaks in the Allocations and Leaks instruments

• Check for any objects that are not being deallocated properly, causing memory leaks

An issue is a general term for any problem, while a bug specifically refers to a coding error.

• An issue can refer to any problem or concern, such as a feature not working as expected or a design flaw.

• A bug specifically refers to a coding error that causes unexpected behavior in the software.

• For example, if a user interface element is not aligned properly, it would be considered an issue. But if clicking on a button does not perform the intended action, it would be considered a...read more

LVM stands for Logical Volume Manager, a tool used in Linux systems to manage disk space by creating logical volumes from physical volumes.

• LVM allows for dynamic resizing of logical volumes without needing to unmount the filesystem

• It provides features like striping, mirroring, and snapshots for data management

• Common LVM commands include pvcreate, vgcreate, lvcreate, lvextend, lvreduce

• Example: Creating a new logical volume 'lv_data' from physical volume 'sda2' in volume group ...read more

Regression, sanity, and smoke testing are different types of software testing used in QA.

• Regression testing is used to ensure that new code changes do not negatively impact existing functionality.

• Sanity testing is a narrow and focused testing to quickly determine if the new functionality is working as expected.

• Smoke testing is a preliminary testing to check if the critical functionalities of the software are working fine.

• Regression testing is usually performed after code chan...read more

Validation ensures the product meets the customer's needs, while verification ensures the product meets the requirements.

• Validation confirms that the product meets the customer's needs and is fit for purpose.

• Verification confirms that the product meets the specified requirements and is error-free.

• Validation is subjective and involves customer feedback, while verification is objective and involves testing against requirements.

• Example: Validation would involve testing if a soft...read more

Content hugging is a constraint that determines how much a view wants to grow or shrink to fit its content.

• Content hugging priority is used to determine which view should grow or shrink first when there is not enough space.

• Higher content hugging priority means the view wants to stay at its intrinsic content size.

• Lower content hugging priority means the view is willing to grow or shrink to accommodate other views.

Sanity tests are focused on specific functionality while smoke tests are broader and check if the basic functionalities work.

• Sanity tests are narrow and deep, focusing on specific functionality to ensure it works correctly.

• Smoke tests are broad and shallow, checking if the basic functionalities of the system work without major issues.

• Sanity tests are usually run after a specific change or bug fix to ensure that the particular functionality is still working as expected.

• Smoke t...read more

Code for a linked list using generics in iOS development.

• Create a generic class Node to represent each node in the linked list.

• Create a generic class LinkedList to manage the linked list operations.

• Implement methods like insert, delete, and search in the LinkedList class.

• Example: Node class with properties value: T and next: Node.

• Example: LinkedList class with methods insert(value: T), delete(value: T), search(value: T).

Listen actively, empathize, remain calm, apologize, offer solutions, follow up

• Listen to the customer's concerns without interrupting

• Empathize with the customer's emotions and show understanding

• Remain calm and composed, even if the customer is being aggressive

• Apologize for the inconvenience caused, regardless of fault

• Offer solutions to resolve the issue and meet the customer's needs

• Follow up with the customer to ensure their satisfaction

Designing a shopping portal system involves creating a platform for users to browse, search, and purchase products online.

• Implement user authentication and authorization for secure transactions

• Design a database schema to store product information, user data, and order history

• Develop a responsive front-end interface for users to navigate and interact with the portal

• Integrate payment gateways for seamless transactions

• Implement search and filter functionalities for users to easi...read more