10 interview questions and answers on eSIM and iSIM

Here’s a list of questions and answers about the eSIM and iSIM.

List of 10 eSIM and iSIM Questions and Answers

Question 1: What is an eSIM?

Answer 1: eSIM (Embedded SIM) is a reprogrammable SIM chip embedded directly into a device, allowing users to change carriers digitally.

Question 2: What is an iSIM?

Answer 2: iSIM (Integrated SIM) integrates SIM functionality into the device’s main SoC, improving space efficiency and security.

Question 3: How does eSIM differ from traditional SIM cards?

Answer 3: eSIM is embedded and rewritable, unlike physical SIMs that are removable and carrier locked.

Question 4: What are the benefits of eSIM technology?

Answer 4: Remote provisioning, better security, smaller form factor, and support for multiple profiles.

Question 5: What industries benefit from iSIM adoption?

Answer 5: IoT, automotive, wearables, and smart appliances due to size constraints and power efficiency.

Question 6: What standards govern eSIM and iSIM?

Answer 6: GSMA’s Remote SIM Provisioning (RSP) specification governs eSIM/iSIM provisioning and security.

Question 7: Can multiple operator profiles be stored on an eSIM?

Answer 7: Yes, eSIM can store multiple profiles, with one active at a time, making it ideal for frequent travelers.

Question 8: What is Remote SIM Provisioning (RSP)?

Answer 8: RSP allows network profiles to be downloaded, activated, or deleted over the air without physical access.

Question 9: Is eSIM supported in modern smartphones?

Answer 9: Yes, many devices like iPhones, Google Pixel, and Samsung models support eSIM.

Question 10: How does iSIM improve over eSIM?

Answer 10: iSIM integrates into the SoC, reducing power, cost, and board space while enhancing security via the trusted environment.