[Solved] How can combining caching and load balancing improve a production system's scalability? - Ans: Caching reduces database load; load balancing spreads user requests evenly | LLD

LLD - Advanced LLD Concepts

How can combining caching and load balancing improve a production system's scalability?

ACaching increases database load; load balancing concentrates requests on one server

BCaching reduces database load; load balancing spreads user requests evenly

CCaching slows down data retrieval; load balancing blocks some users

DCaching and load balancing have no effect on scalability

Step-by-Step Solution

Solution:

Step 1: Understand caching effect on database
Caching stores frequent data, reducing direct database queries and load.
Step 2: Understand load balancing effect on requests
Load balancing distributes user requests evenly, preventing server overload.
Step 3: Combine effects for scalability
Together, they reduce bottlenecks and allow system to handle more users smoothly.
Final Answer:
Caching reduces database load; load balancing spreads user requests evenly -> Option B
Quick Check:
Caching + Load balancing = Better scalability [OK]

Quick Trick: Cache cuts DB load; load balancer evens traffic [OK]

Common Mistakes:

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