How deeply should a Salesforce fresher understand security concepts like OWD, Role Hierarchy, Sharing Rules, Profiles, and Permission Sets for interviews?

Hi @Yella Vani

As a Salesforce fresher, you don't need expert-level knowledge, but you should have a strong understanding of security concepts with practical examples. 

Focus on these key areas:

1. OWD: Understand Private, Public Read Only, and Public Read/Write with real-time scenarios.
2. Role Hierarchy: Know how record access can be provided to users higher in the hierarchy.
3. Sharing Rules: Understand Owner-Based and Criteria-Based Sharing Rules and when to use them.
4. Profiles: Understand baseline permissions, object access, field-level security, and login restrictions.
5. Permission Sets: Know how to provide additional permissions without changing the user's profile.
6. Practical Scenarios: Practice questions like:
   • Two users have the same profile but see different records. Why?
   • A user can view a record but cannot edit it. What could be the reason?
   • How do you provide record access to another department?

My suggestion: Don't just memorize definitions. Create 3–4 users in a Developer Org and test different security settings.

For fresher interviews, practical understanding and the ability to explain real-world scenarios are more important than advanced concepts.