User talk:Ebarrier: Difference between revisions
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==Operating systems basic terms and introduction== | ==Operating systems basic terms and introduction== | ||
Tasks of the kernel, operating system, RAM, processor etc | ===Tasks of the kernel, operating system, RAM, processor etc=== | ||
Applications use the kernel to connect to computer system resources (CPU; memory and devices). It manages input/output requests from software, translating them into data processing instructions for the central processing unit. It is also responsible for managing memory, and for managing and communicating with computing peripherals, like printers, speakers, etc. It is crucial part of the operating system. | |||
Tasks: | |||
*CPU time planning | |||
**Real time vs Package processing | |||
**Syncing | |||
**Multitasking with multiple CPUs | |||
*Memory management | |||
**MMU - memory management unit | |||
**Cache and swap | |||
*I/O management | |||
**Syncronous | |||
**Asyncronous | |||
*File management | |||
**Permissions | |||
**File system hierarchy | |||
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs (API). | |||
Tasks: | |||
*Hardware management | |||
**CPU time | |||
**Memory management | |||
**Input/output management | |||
**Network management | |||
*Computer system management | |||
**Application management | |||
**Input/output device management | |||
**User authentication and authorization | |||
**Data management between devices | |||
==User management== | ==User management== | ||
What is authorization and authentication? | ===What is authorization and authentication?=== | ||
What is password salt and what is it used for? | ===What is password salt and what is it used for?=== | ||
==Working with files and permissions== | ==Working with files and permissions== | ||
Explain the way why permissions are needed and how they are set for users | ===Explain the way why permissions are needed and how they are set for users=== | ||
Explain special permissions | ===Explain special permissions=== | ||
==User environment== | ==User environment== | ||
What are user environment variables used for? Name two reasons | ===What are user environment variables used for? Name two reasons=== | ||
==Processes== | ==Processes== | ||
How to stream data between processes | ===How to stream data between processes=== | ||
What are different type of processes (running, stopped, killed, zombie etc) | ===What are different type of processes (running, stopped, killed, zombie etc)=== | ||
Different examples of how to benefit from sending signals between processes | ===Different examples of how to benefit from sending signals between processes=== | ||
==Software management== | ==Software management== | ||
Name various ways how to manage software in LInux | ===Name various ways how to manage software in LInux=== | ||
What are the pros and cons of Linux software management | ===What are the pros and cons of Linux software management=== | ||
What are software repositories? | ===What are software repositories?=== | ||
What are libraries? | ===What are libraries?=== | ||
==Filesystem hierarchy== | ==Filesystem hierarchy== | ||
Explain the hierarchy according to FHS | ===Explain the hierarchy according to FHS=== | ||
Name specific folder meanings and usage | ===Name specific folder meanings and usage=== | ||
==Documentation== | ==Documentation== | ||
Best practices of a good documentation | ===Best practices of a good documentation=== | ||
Why should we document? | ===Why should we document?=== | ||
==Security== | ==Security== | ||
List the different type of security breaches | ===List the different type of security breaches=== | ||
What should the user/admin do to prevent the attack? | ===What should the user/admin do to prevent the attack?=== | ||
==Partitioning and swap area== | ==Partitioning and swap area== | ||
What are the primary, extended and logical partitions? What limitations are set with these partitions types? | ===What are the primary, extended and logical partitions? What limitations are set with these partitions types?=== | ||
When isn’t it a good idea to use swap area? | ===When isn’t it a good idea to use swap area?=== | ||
==RAID and LVM technologies== | ==RAID and LVM technologies== | ||
Name main uses and features of both technologies | ===Name main uses and features of both technologies=== | ||
==SAN, NAS and CAS technologies== | ==SAN, NAS and CAS technologies== | ||
Name main uses and features of all the technologies | ===Name main uses and features of all the technologies=== | ||
==Backup and recovery== | ==Backup and recovery== | ||
Backup and recovery plans | ===Backup and recovery plans=== | ||
==Monitoring and log files== | ==Monitoring and log files== | ||
Active and passive monitoring | ===Active and passive monitoring=== | ||
Types of alerts | ===Types of alerts=== | ||
Benefits of monitoring | ===Benefits of monitoring=== | ||
Centralized logs | ===Centralized logs=== | ||
==Ethical, social and personal aspects of working in IT field== | ==Ethical, social and personal aspects of working in IT field== | ||
Impostor syndrome, teamwork, burnout | ===Impostor syndrome, teamwork, burnout=== | ||
Latest revision as of 13:45, 8 June 2016
Operating systems basic terms and introduction
Tasks of the kernel, operating system, RAM, processor etc
Applications use the kernel to connect to computer system resources (CPU; memory and devices). It manages input/output requests from software, translating them into data processing instructions for the central processing unit. It is also responsible for managing memory, and for managing and communicating with computing peripherals, like printers, speakers, etc. It is crucial part of the operating system.
Tasks:
- CPU time planning
- Real time vs Package processing
- Syncing
- Multitasking with multiple CPUs
- Memory management
- MMU - memory management unit
- Cache and swap
- I/O management
- Syncronous
- Asyncronous
- File management
- Permissions
- File system hierarchy
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs (API).
Tasks:
- Hardware management
- CPU time
- Memory management
- Input/output management
- Network management
- Computer system management
- Application management
- Input/output device management
- User authentication and authorization
- Data management between devices
