Advanced Linux Questions

Definition

Deep-dive questions covering kernel architecture, networking stacks, disk management, and performance tuning.

Explain Like I'm New

Proving you understand how the operating system actually works under the hood.

Real World Example

Interview Question: 'Explain the Linux boot process from the moment you press the power button to the login prompt.'

Common Use Cases

•Senior DevOps interviews
•SRE (Site Reliability Engineer) interviews

Interview Questions

basic

What is the difference between a Hard Link and a Soft Link?

intermediate

Explain Load Average. If a 4-core server has a 1-minute load average of 4.0, is it overloaded?

Flash Cards

Question

Hard vs Soft link?

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Answer

A soft link points to a file name; if the original is deleted, the link breaks. A hard link points to the inode; the data remains safe until all hard links are deleted.

Question

Load average of 4.0 on 4-cores?

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Answer

No, it is exactly at 100% capacity. A load of 1.0 means one core is fully utilized. For 4 cores, a load of 4.0 is optimal maximum usage. Anything above 4.0 means tasks are waiting in queue (overloaded).