Most-Asked Operating System Interview Questions

By Team foundit June 11, 2024

OS Interview Questions

[{"selector":"#anim-b4ef7625-9623-4ecc-a4bd-e52b4d71290a","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-21e5cd1d-9f43-4214-bfff-1e9e4fea1e13","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-c052a268-87cc-455f-850e-46c1d059421a","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-070d45ff-89f0-476c-aa1f-1647d94c5826","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-bebbdb9f-092b-436d-87d5-4bba4b16309e","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-94048f7f-3bb8-4b56-adfd-4653fa36c659","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Get ready with these most commonly asked operating system (OS) interview questions for 2024.

What is an Operating System?

[{"selector":"#anim-2d968bdb-4251-410a-9366-d6a0ade702f4","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-0e4d79de-02f0-47bd-b1d4-e4f624922290","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-1185dbe2-3193-473f-ab37-85ceccec270b","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-3c03636f-6d1b-44ac-ab28-f898231284ab","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-b0a0baf1-933f-4771-a3f2-5c4ffe3eea9c","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-2c2b427a-3492-4bae-a467-659eb22addbe","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Explain what an operating system is and its primary functions.

Types of Operating Systems

[{"selector":"#anim-5a68b785-ff0c-48ce-a344-a56542dbb28e","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-87e487d6-56d5-417e-9fbc-46badf1dab53","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-14eb8ad6-34ff-48b9-8ad7-7b36d4445d91","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-0d522321-e0b6-4cbf-af5a-19f735d44ce5","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-28e86654-1f0b-4878-a6fc-7504e2f99a09","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-df46ecaf-3833-4309-8896-7e719f207eea","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] What are the different types of operating systems? Provide examples for each type.

Process vs. Thread

[{"selector":"#anim-05845930-60cf-4b4a-963e-5dd5f40faf6a","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-16a29440-15a3-4f1d-b74b-5bc530ee42b1","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-6cfecd95-5958-4085-bdec-c129f4ceef9d","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-90d62e40-c93a-4326-a64a-aa5547d392c0","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-e8b47e68-7334-44a2-8654-140ccc7129ca","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-1f3bdd59-f281-4edb-935e-1f45763e0ab2","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] What is the difference between a process and a thread?

Multithreading

[{"selector":"#anim-2105778c-6903-489d-930c-1248e4978c39","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-430ef82d-ec4c-4283-8621-e7272d3df4cf","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-5bf1f0a3-081b-49b9-9689-262bb25ce413","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-6f3db713-1019-4d5a-8e0b-225f1009e29f","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-065d170d-be60-4f35-80c4-6ca1ab2042dd","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-4743a03f-f4b8-47d9-8087-ee95deb8a45c","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Explain multithreading in OS and its benefits.

Deadlock

[{"selector":"#anim-bb3302fe-35c1-49dd-aacb-d5f3637b3e0b","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-c3c0e56f-3753-43c5-bb4b-d6a3e587b769","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2548baa8-cda9-4636-9dd8-d96bd36e8bb8","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-29837c21-9863-4e1d-8d87-b649a4f09513","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-40636d2b-0aa1-46ba-b075-2a048352d0cb","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-ee769a5a-c20c-4578-8336-6e815485f972","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] What is a deadlock in an operating system? How can it be prevented?

Paging and Segmentation

[{"selector":"#anim-77b0f89e-ef97-457e-9c30-b4d96723d016","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-bf3e1a94-bd15-44bc-9957-24dd738ac03b","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-15fdf794-6630-4d0e-817d-6364fb88e849","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-ff78c7c3-256a-465e-acf2-247fcc503fbc","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-9626573f-f03e-4947-ad94-6cc161f456e6","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-8beb4555-1766-42de-93c4-d7596f04733e","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] What are paging and segmentation? How do they differ?

Memory Management

[{"selector":"#anim-1bf3f143-1a97-44b1-88f7-97f81b51b6bc","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-b8e13fe6-8474-44ce-88a7-2cb49beb8006","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-6a49c879-a2c0-4ed4-92a9-09327411c596","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-b9ee3373-784d-4874-b54e-3d0b73458901","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-3c710412-0aa0-4980-b0b3-07d2d68d99af","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-7b203bac-b89e-4b49-b20d-2a061324223a","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Explain the difference between virtual memory and physical memory.

CPU Scheduling

[{"selector":"#anim-baed80af-f716-4a7e-b0af-360dfc808e68","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-ea363136-8ca7-40c7-8dff-911c3d938b54","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-f5e140eb-1ce5-4236-ac90-d8a942da072d","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-d56bde59-9603-460b-ae74-02dcc48fd550","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-9de14ded-7784-4b0c-b480-cf4122476d3e","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-366e6191-83fe-439d-b8e8-3ceac3f19826","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] What are different CPU scheduling algorithms? Provide a brief overview of each.

File Systems

[{"selector":"#anim-5fbcf23c-8c8d-4a19-875e-bd2b4530dd52","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-74711237-dc8c-42d8-8d68-5b67dbc007f1","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-1cfe8159-1b8c-48a9-b51b-2c1dd449c496","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-2be565c8-c795-4130-9428-548048d8bccc","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-16b4bf00-4918-4bfc-89d8-00b15dab6fb3","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-88fbafa2-e837-4538-907f-1152fcf20d59","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Describe different types of file systems. How do they manage data?

Memory Management

[{"selector":"#anim-a6313c7a-23e0-47e2-8766-f67f9ece7d79","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-6c8b4312-102a-42ff-8f00-19f48b28431f","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-06b6481d-f5a2-4e4a-9dce-d044df9d9128","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-9f82ce35-9f54-4e5b-980e-d11fe74a7b1f","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-d189c9e4-20b5-4a50-ac19-f6dc7ddb88fc","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-af26e103-da17-4133-8947-7b42ecb471c9","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] What are the key functions of memory management in an OS?

Security in Operating Systems

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Tips for mastering OS Interviews

[{"selector":"#anim-7e7d53a7-7e1b-4c55-8477-6fa5629b4a94","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-60e990a4-90ee-4f95-8fed-2a4145b3a3d0","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-4c7af444-9c00-4ee0-b4f4-9a8a768f796c","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-6f84cb0b-91de-48ad-8fb1-80106e193947","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-65a60445-e71d-4a21-94ce-b0b6acd515ed","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-1574bcd1-15b9-4410-bd81-fa11e17c2058","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Practice explaining concepts clearly. Be ready to discuss real-world examples of OS functionality.

Ready To Apply

[{"selector":"#anim-207068ca-9b3d-44a2-b579-b6765d27c2a3","keyframes":{"opacity":[1,1]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-411996de-0f7a-4c66-be8b-5498366e5949","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":10,"duration":1500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-7fb12c74-8633-4135-a975-c10ddf737162","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-d7381cb6-ea3c-4c28-b5bf-5147e3d659a3","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-5ca558d3-f6a1-4904-bdc2-ea9a428eec9a","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-736cfcca-dd42-4d28-9679-91fd00ddcd66","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Don't wait! Update your resume and register at foundit to apply for these exciting opportunities. Register Now

Most-Asked Operating System Interview Questions

OS Interview Questions

What is an Operating System?

Types of Operating Systems

Related Stories

Process vs. Thread

Multithreading

Deadlock

Paging and Segmentation

Memory Management

CPU Scheduling

File Systems

Memory Management

Security in Operating Systems

Tips for mastering OS Interviews

Ready To Apply