Q1. What is the difference between a process and a thread?
A process is a running program with its own virtual address space, code, data, heap, open file descriptors and at least one thread. The operating system isolates processe...
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Q2. How do you find which process is using a port on Linux?
Use ss, lsof, or fuser depending on what is installed. ```bash sudo ss -ltnp | grep ':8080' sudo lsof -i :8080 sudo fuser -n tcp 8080 ``` - ss -ltnp lists listening TCP s...
Q3. Walk me through how you run a discovery call.
A discovery call is a structured conversation to understand whether there is a real problem worth solving, and to qualify the opportunity. I open with context and permiss...
Q4. Walk me through how you would model a business process.
I model a process to create a shared, accurate picture of how work actually flows, not how people think it flows. I start by defining the scope and boundaries, where it b...
Q5. What is the GIL and how does it affect concurrency?
The Global Interpreter Lock is a mutex in CPython that allows only one thread to execute Python bytecode at a time. Consequences: - CPU-bound multithreading does not get ...
Q6. When should you escalate a customer issue, and how do you do it well?
I escalate when the issue exceeds my authority, requires specialist knowledge, or risks breaching an SLA or damaging the relationship. Good escalation is early and comple...
Q7. How do you keep your CRM data accurate and useful?
Accurate CRM data is what makes forecasting and handovers possible, so I treat updating it as part of the work, not as admin. After every call I log the key points within...