Tech Support / L1-L3

What types of non-relational databases exist and for what tasks are they used? How do they differ from relational databases?

What are indexes in databases and what are they for? How do they work?

Middle

МТС Digital

Which entity in Kubernetes is responsible for the availability of the service outside?

Middle

ГК Иннотех

Do you have experience building dashboards in Grafana?

What is a worker node in Kubernetes?

Middle

ГК Иннотех

How to fight race conditions?

Do you have experience with Redis? What did you do?

Tell us about your experience with monitoring tools: Zabbix, Prometheus, Grafana.

Middle

ГК Иннотех

What operators are used inside a SELECT query and in what order?

Middle

ГК Иннотех

List the main entities of Kubernetes you have to work with.

Middle

ГК Иннотех

How were access rights to file resources distributed? What types of AD groups exist and how do they differ?

Tell about your experience with Git. List the basic commands for creating a commit to a remote repository.

Middle

ГК Иннотех

Network problem diagnosis: uploading 20 GB over a 3 Gbps channel takes 6 hours. Where is the bottleneck and what tools can be used for diagnosis?

How is interaction with adjacent teams (development, infrastructure) organized?

What is the difference between a partition and a topic in Kafka?

Middle

ГК Иннотех

What is a hash table?

/** * Repeating characters * * Write a function that takes a string as input and returns * for each unique character the maximum number of its consecutive repetitions. * * Input: aaffbaaaaffc * Output: a:4 b:1 f:2 c:1 * * Input: bbbbbb * Output: b:6 * * Input: abc * Output: a:1 b:1 c:1 * * Input: aabbcc * Output: a:2 b:2 c:2 * * Input: aaabbbccc * Output: a:3 b:3 c:3 * * Input: a * Output: a:1 * * Input: "" * Output: */