Digiviso

  1. Introduction Why tech interviews matter. What companies test: coding, system design, problem‑solving, communication. 2. Technical / Conceptual Questions Example Q: Explain OOP principles. Answer: Encapsulation (data hiding), Abstraction (simplified interface), Inheritance (reuse), Polymorphism (different forms). 👉 Use a real‑world analogy : A car (encapsulation = engine hidden, abstraction = steering wheel, inheritance = electric vs petrol cars, polymorphism = different ways to “drive”). Example Q: REST vs GraphQL (see cheat sheet above). 3. Coding / Problem-Solving Example Q: Reverse a linked list. Answer (Python): python def reverse_list(head): prev = None while head: nxt = head.next head.next = prev prev = head head = nxt return prev 👉 Better Approach: Explain step‑by‑step: Keep track of previous node. Rewire pointers. Iterate until list ends. 4. System Design Example Q: Design a URL shortener. Answer: Use a hash...

  Building on the foundational concepts of SEO and KPIs, these advanced questions address the integration of artificial intelligence, evolving data privacy standards, and complex user behaviors that define the marketing landscape in 2026. 1. How does Predictive Analytics change the way we approach Customer Lifetime Value (CLTV)? In 2026, we no longer rely solely on historical data to calculate CLTV. Predictive analytics uses machine learning to forecast future buying behaviors based on early-stage interactions. For example, instead of waiting a year to see if a customer is "high value," AI models can analyze a new user’s first three days of browsing patterns to predict their churn probability. This allows marketers to proactively offer personalized incentives to high-potential users before they disengage. 2. What is the impact of "Zero-Party Data" on marketing in a cookieless world? As third-party cookies have become obsolete, zero-party data—information that a cust...