ABCD Software Engineer Interview Questions and Answers

Virtualization in OS refers to creating a virtual version of a resource such as hardware, operating system, or storage.

• Virtualization allows multiple operating systems to run on a single physical machine

• It enables better utilization of resources and reduces hardware costs

• Examples include VMware, VirtualBox, and Hyper-V

When a URL is typed in a browser, it initiates a series of requests and responses to display the requested webpage.

• Browser checks cache for DNS resolution

• If not found, browser sends a DNS request to resolve the domain name

• Browser sends a request to the server for the webpage

• Server responds with the requested webpage

• Browser renders the webpage and displays it to the user

Double Ordered Traversal is a traversal technique used to traverse a binary tree in a specific order.

• In Double Ordered Traversal, we first traverse the left subtree in an inorder manner.

• Then we traverse the right subtree in a reverse postorder manner.

• Finally, we traverse the root node.

• This traversal technique is also known as Morris Traversal.

• It is used to traverse a binary tree without using recursion or a stack.

Add two binary numbers given in string form.

• Convert the binary strings to integers.

• Add the integers.

• Convert the sum back to binary string.

• Handle cases where the binary strings have different lengths.

• Handle cases where there is a carry over.

Thread is a lightweight process that can run concurrently with other threads within a program.

• Threads allow for parallelism and can improve performance in certain scenarios.

• Threads can communicate with each other through shared memory or message passing.

• Thread creation and management is typically handled by the operating system or a thread library.

• Examples of thread libraries include pthreads for C/C++ and java.util.co...read more