SMS Group interview questions

Preview Questions

1. Tell me about yourself.

   Your response should be a concise professional narrative connecting your background to the position at BUSY Infotech. Begin with your educational background, mentioning your degree, specialization, and any academic...

2. What are your strengths and weaknesses?

   When discussing strengths, choose three to four qualities directly relevant to software development roles and support each with concrete examples. You might mention technical strengths like strong problem-solving...

3. What is normalization in DBMS, and why is it needed?

   First, define normalization as a process of organizing data to reduce redundancy and avoid anomalies. Briefly mention normal forms like 1NF, 2NF, and 3NF with one-line intuition for each (attributes atomic, full...

4. Explain volatile and synchronized in multithreading in Java.

   In Java, the volatile keyword ensures visibility of changes to a variable across threads. When a variable is declared volatile, every read comes directly from main memory and every write goes straight to main memory, so...

5. What is the difference between deep copy and shallow copy?

   A shallow copy creates a new object but does not create copies of the nested objects inside it; instead, it simply copies references to those inner objects. This means the outer container (like a list or object) is new,...

6. How does the Java memory model work (Heap, Stack, Metaspace)?

   The Java Memory Model divides memory into three main areas—Heap, Stack, and Metaspace, each serving a different purpose in program execution. The Heap is where all objects are stored, and it is shared across all...