Tech Support / L1-L3

What is DNS and how does it work? What are the main nodes in this system?

/** * 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: qqffbbaaaffc * 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: */

What is a subnet mask? What are ports used for in network protocols?

Middle

ГК Иннотех

What is the difference between arrays and slices in Go? How does the capacity of a slice change?

What is the difference between TCP and UDP?

What do you mean by responsibility, what do you want to take on yourself?

Principal

Axenix

Task: How many usable addresses are there in a /29 mask in IPv4?

Are duty shifts and overtime paid?

What is your experience with OpenSearch?

Why is atomic called so and how does it work?

What are goroutines in Go? How do they differ from OS threads?

Tell us about PKI and certificates — what operations have been performed with them?.

What is DDL, DML, DCL? What are their differences and examples of commands?

Middle

ГК Иннотех

Describe the process of delivering software using Jenkins.

Middle

ГК Иннотех

How to use embedding to simulate inheritance in Go?

What else will you check using repadmin? What are you trying to see?

Can you build CI/CD pipelines from scratch to deploy a system? Automate support, deployment, updates?

Are you skilled in working with Nginx, configuring web services?

What else needs to be checked in a more complex infrastructure (hundreds of servers, dozens of domain controllers)?

What else needs to be checked besides replication?