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Infrastructure Engineer Interview Questions

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Infrastructure Engineer Interview Questions

Infrastructure engineers are responsible for building and maintaining digital networks. In your interview for an infrastructure engineer position, be prepared to answer technical questions about IT systems and software. Interviewers may also ask non-technical questions to assess your communication and time management skills.

Top Infrastructure Engineer Interview Questions & How to Answer

Question 1

Question #1: How do you communicate complex issues to non-engineer colleagues or clients?

How to answer
How to answer: Interviewers use this question to assess your ability to communicate IT information to co-workers and clients from non-IT backgrounds. List and describe the verbal and written communication strategies you have used in the past to break down difficult concepts into understandable pieces.
Question 2

Question #2: What are the positive and negative aspects of working within an Agile construct?

How to answer
How to answer: Agile is one of the most popular project management and software development approaches used by IT teams. This question allows interviewers to assess your understanding of the Agile environment as well as your approach to teamwork and interpersonal communication. If possible, use previous work experience to elaborate on the benefits and issues you have experienced working within an Agile environment.
Question 3

Question #3: How do you produce quality work when you have several projects to complete?

How to answer
How to answer: Infrastructure engineers must juggle all of their projects while simultaneously dealing with infrastructure issues requiring immediate attention. Interviewers use this question to assess your time-management skills and your ability to work well under pressure. List and discuss planning tools you use on the job and how you handle emergency issues.

3,742 infrastructure engineer interview questions shared by candidates

When a in-memory database is used primarily as a cache, eventually that database will become full. In order to continue operating, objects must be evicted from memory (essentially, deleted) to free up space. Some common strategies for determining what to evict include: LRU (Least Recently Used), where the least recently accessed keys are evicted first when an eviction is reguired LFU (Least Frequently Used), where the least frequently accessed keys are evicted first when an eviction is required Random, where a random key is evicted when an eviction is required No Eviction, where an error is raised rather than ever evicting a key Which statement about eviction policies is most TRUE? O Memcached supports the Random or LRU eviction strategles, whereas Redis never evicts keys and instead always raises an error when RAM is exhausted. Redis supports all of the above strategies, and Memcached supports only LRU and LFU. Typically an application will configure all available data stores with a similar eviction policy. Both Memcached and Redis support all of the above strategies, and you should configure Memcached or Redis appropriately as required by the application. Both Redis and Memcached support all of the above strategies except for Random. FU is always inferior to LRU and should never be used. While Redis supports all of the above strategies, Memcached only supports an RU eviction policy. It is conceivable that certain applications would benefit from multiple Redis servers with different eviction policies for different storage needs.
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Infrastructure Engineer

Interviewed at Files.com

2.8★
Jun 11, 2024

When a in-memory database is used primarily as a cache, eventually that database will become full. In order to continue operating, objects must be evicted from memory (essentially, deleted) to free up space. Some common strategies for determining what to evict include: LRU (Least Recently Used), where the least recently accessed keys are evicted first when an eviction is reguired LFU (Least Frequently Used), where the least frequently accessed keys are evicted first when an eviction is required Random, where a random key is evicted when an eviction is required No Eviction, where an error is raised rather than ever evicting a key Which statement about eviction policies is most TRUE? O Memcached supports the Random or LRU eviction strategles, whereas Redis never evicts keys and instead always raises an error when RAM is exhausted. Redis supports all of the above strategies, and Memcached supports only LRU and LFU. Typically an application will configure all available data stores with a similar eviction policy. Both Memcached and Redis support all of the above strategies, and you should configure Memcached or Redis appropriately as required by the application. Both Redis and Memcached support all of the above strategies except for Random. FU is always inferior to LRU and should never be used. While Redis supports all of the above strategies, Memcached only supports an RU eviction policy. It is conceivable that certain applications would benefit from multiple Redis servers with different eviction policies for different storage needs.

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