Computer Technologies Interview Questions and Answers

Q1. Detailed discussion on the projects worked on
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Q1. Technical questions and answers
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Q1. Face to face interview
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Q1. General HR questions
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Q1. Describe the inner working of recyclerview?
Ans. 
RecyclerView is a flexible view for providing a limited window into a large data set.
• RecyclerView is used to display large data sets that can be scrolled efficiently.

• It reuses the views that are no longer visible to display new data.

• It uses a LayoutManager to position the items and a ViewHolder to cache the views.

• It provides built-in animations for adding, removing, and updating items.

• It supports both vertical and hori...read more
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Q2. Difference between Array and Linkedlist?
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Array is a collection of elements of similar data type stored in contiguous memory locations. LinkedList is a data structure where each element is a separate object with a reference to the next element.
• Array has fixed size, LinkedList can grow dynamically

• Array has faster access time, LinkedList has faster insertion and deletion time

• Array is best for random access, LinkedList is best for sequential access

• Example of Arra...read more
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Q3. What is context? explain it's types
Ans. 
Context is an object that provides access to application-specific resources and classes.
• Context is used to get access to system services, resources, preferences, etc.

• There are two types of context: Application Context and Activity Context.

• Application Context is tied to the lifecycle of the application and is available throughout the application.

• Activity Context is tied to the lifecycle of an activity and is available o...read more
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Q1. What is different between router and switches?
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Routers connect different networks, switches connect devices within a network.
• Routers operate at the network layer and use IP addresses to forward packets between networks.

• Switches operate at the data link layer and use MAC addresses to forward frames within a network.

• Routers can prioritize traffic and perform network address translation (NAT).

• Switches can create virtual LANs (VLANs) to segment a network.

• Example of a r...read more
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Q2. What is different between windows 10 and windows 7
Ans. 
Windows 10 has a more modern interface, better security features, and improved performance compared to Windows 7.
• Windows 10 has a Start menu with live tiles, while Windows 7 has a traditional Start menu.

• Windows 10 has Cortana, a virtual assistant, while Windows 7 does not.

• Windows 10 has better security features such as Windows Hello, biometric authentication, and improved Windows Defender.

• Windows 10 has improved perfor...read more
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Q1. Analytical thinking Attention to details Customer service best practices Knowledge of hardware and networking knowledge of networking troubleshooting
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Program output prediction,Logical

3 programs ,any Language you choose. One SQL and 2 programs

Q1. Design the APIs for uber/ola kind of use-case.
Ans. 
Designing APIs for a ride-sharing service like Uber/Ola.
• Create endpoints for user registration, login, booking a ride, cancelling a ride, viewing ride history, and rating drivers.

• Include authentication and authorization mechanisms to ensure secure access to the APIs.

• Implement endpoints for driver registration, accepting/rejecting ride requests, updating location, and viewing earnings.

• Utilize geolocation services for tr...read more
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