Tirgul 1

Question 1

Where is the main memory located?

Answer 1

On a chip in the computer but outside of the CPU

Question 2

What is kept in the main memory?

Answer 2

Program instruction and process data

Question 3

Can the hard disk write and read information to and from the main memory?

Answer 3

Yes

Question 4

Which is faster: accessing the main memory or hard disk?

Answer 4

Main memory

Question 5

Where are programs stored?

Answer 5

Programs are stored on the disk until they are loaded into memory, then they use the disk as both the source and destination of the information for their processing.

Question 6

What is a virtual machine?

Answer 6

A virtual machine (VM) is an emulation of computer system.

There can be many VMs on each physical computer system, and each VM may have its own “virtual” resources and operating system, so that it “feels” like working with physical machine

Question 7

What has more overhead - container or VMs?

Answer 7

VMs

Question 8

What is a container?

Answer 8

A container is an OS-level virtualization, that is an OS which allows the existence of multiple isolateduser spaceinstances.

Question 9

What can a program running inside a container see?

Answer 9

It can only see the container’s contents and devices assigned to the container.

Question 10

Do multiple containers (running on the same machine) share the OS kernel?

Answer 10

Yes

Question 11

How many operating system run if I’m running 3 VM’s?

How many OSes if I’m running 3 containers?

Answer 11

VMs: 3
Containers: 1 (all the containers share the same OS)