Q1. How do you handle the objection "your product is too expensive"?
Treat price objections as a signal that value has not been established, not as a rejection. A useful approach: - Acknowledge: "I understand budget matters, especially rig...
Technical Question Bank · Peer-Reviewed
Job Interview Questions and Answers Directory
Search and filter frequently asked interview questions across technical, programming, and behavioral domains. Tailor your interview preparation by difficulty for freshers or experienced developers (22 available).
Active:
Tag: val ×
Q2. Explain p-value and statistical significance to a non-technical stakeholder.
Imagine we assume a change has no real effect, which is the null hypothesis. The p-value answers: if that were true, how surprising would the data we observed be? A p-val...
Q3. What is the difference between value types and reference types?
Value types store their data directly and are copied on assignment. Reference types store a reference to heap data, and copying copies the reference. - Value types: numer...
Q4. What is the difference between let and var, and between structs and classes?
`let` declares a constant binding and `var` a mutable one. For value types, `let` also prevents changing stored properties. Structs are value types: assignment and passin...
Q5. What is the difference between val and var?
`val` declares a read-only reference that cannot be reassigned after initialisation. `var` declares a mutable reference that can be reassigned. ```kotlin val name = "Ada"...
Q6. What are zero values in Go and why do they matter?
Go has no uninitialised variables. Every type has a defined zero value: 0 for numeric types, false for bool, the empty string for string, nil for pointers, slices, maps, ...
Q7. Explain caching strategies and common failure modes.
Strategies: - Cache-aside (lazy loading): app checks cache, on miss reads DB and populates. Most common. - Read-through: cache library fetches on miss. - Write-through: w...
Q8. What is a confidence interval and how do you interpret it?
A confidence interval gives a range of plausible values for a population parameter, along with the uncertainty in the estimate. A 95 percent interval means that if we rep...
Q9. Compare write-through, write-behind and write-around caching.
- Write-through: write to the cache and the database in the same operation, synchronously. The cache stays fresh and reads are fast, but writes are slower and every write...
Q10. How do you measure whether learning outcomes were achieved?
I decide what evidence would prove the objective was met, then collect it in more than one way. Direct measures include a task, quiz or performance rubric aligned to the ...