Digital System Engineer Interview Questions and Answers

Python provides a built-in module 'threading' to implement threads.

• Import the 'threading' module

• Create a new thread using the 'Thread' class

• Define the target function for the thread

• Start the thread using the 'start()' method

• Join the thread using the 'join()' method

• Use locks to synchronize access to shared resources

IP address is a unique identifier assigned to devices on a network. DNS is a system that translates domain names to IP addresses.

• IP address stands for Internet Protocol address

• It is a numerical label assigned to each device connected to a network

• It serves as a unique identifier for the device

• DNS stands for Domain Name System

• It is a system that translates domain names to IP addresses

• For example, www.google.com is translated to an IP address like 172.217.6.196

ACID properties are a set of properties that ensure database transactions are processed reliably.

• ACID stands for Atomicity, Consistency, Isolation, and Durability.

• Atomicity ensures that a transaction is treated as a single, indivisible unit of work.

• Consistency ensures that a transaction brings the database from one valid state to another.

• Isolation ensures that concurrent transactions do not interfere with each other.

• Durability ensures that once a transaction is committed, it ...read more

Truncate, delete, and drop are SQL commands used to remove data from a table.

• Truncate removes all data from a table and resets the identity column

• Delete removes specific rows from a table

• Drop removes the entire table from the database

• Truncate and drop cannot be rolled back, while delete can be

• Truncate is faster than delete as it does not log individual row deletions

Calculate average of an array.

• Loop through the array and add all the elements

• Divide the sum by the length of the array

• Return the average

Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.

• Compare adjacent elements and swap them if they are in the wrong order

• Repeat this process until the list is sorted

• Time complexity is O(n^2)

• Space complexity is O(1)

• Example: [5, 3, 8, 4, 2] -> [3, 5, 4, 2, 8] -> [3, 4, 2, 5, 8] -> [3, 2, 4, 5, 8] -> [2, 3, 4, 5, 8] (sorted)