Explain what signals are in the Linux operating system and how to work with them.
264
DevOps
Can you name popular non-relational databases and explain their features?
Junior — Middle
238
What can be used to solve the capacity problems of data transmission channels? What technologies for physical channel aggregation exist?
Middle
233
Explain what the iowait mode in Linux CPU operation means and how it affects system processes.
Junior — Middle
231
Can you name different levels of transaction isolation in database management systems?
Junior — Middle
230
Can you explain what the Load Average metric means in the Linux operating system?
225
What is GRUB and what is it used for?
Middle
223
212
Explain how the operating system decides where to send a TCP packet when attempting to establish a connection with a specific remote node.
Junior — Middle
212
Can you explain how the Round Robin load balancing method works?
Junior — Middle
210
Can you explain what the term 'cryptographically secure hash' means and what its fundamental features are?
Junior — Middle
206
Can you list different modes of journaling file systems in Linux?
Junior — Middle
206
How is data decryption performed when sending an email using a digital signature?
Junior — Middle
199
How is encryption performed when sending an email using a digital signature?
Junior — Middle
199
Can you explain the principles and properties of transactions in databases related to ACID?
Junior — Middle
197
What protocol is used for domain name resolution on the network?
Junior — Middle
197
Can you list and describe the main types of HTTP requests?
Junior — Middle
194
What is the difference between interruptible signals and those that cannot be interrupted in Linux system?
Junior — Middle
194
What is the difference between the role of the GNU GRUB bootloader and the main BIOS during system startup?
Junior — Middle
193
On which network port does interaction with DNS servers occur?
Junior — Middle
191