Common sense problem Sets (ii)

Exercises:

1. Please answer, 32-and 64-bit what is the difference? When to install 32-bit, and when to install 64-bit operating system? How do I see whether the system is 32-bit or 64-bit?

2. What is the role of the swap partition? How do I determine the size of a swap partition?

3. Amin in the tutorial, teach you how to divide the universal partition?

4. After the system is installed, try the cloning of the VMware virtual machine.

5. Check the information to understand the concept of grub, a brief description.

6. How much do you know about time zones? What time zone are we using in China?

Answer:

1. Please answer, 32-and 64-bit what is the difference? When to install 32-bit, and when to install 64-bit operating system? How do I see whether the system is 32-bit or 64-bit?

Our so-called 32-bit, 64-bit refers to the data width of the CPU GPRS (general-purpose registers, universal Register). A 64-bit CPU can perform a larger range of integer operations than 32 bits, and can support larger memory. It is not possible to simply assume that the performance of a 64bit processor is twice times the performance of a 32bit processor because of a digital change. In fact, in 32bit applications, 32bit processor performance even stronger, even the 64bit processor, the current situation is also under the 32bit application performance is stronger.

and the operating system is also differentiated 32-bit and 64-bit, the current mainstream computer hardware is mostly 64-bit CPU, so all support the installation of 64-bit operating system, of course, install 32-bit operating system is also possible, as for the installation of 32-bit or 64-bit system mainly to see how much our computer memory, If you install 64-bit more than 4G, it would be better to install 32-bit instead.

To see if the system is 32-bit or 64-bit use command uname-a if the display has x86_64 is a 64-bit system, and the display i386,i586 or i686 is a 32-bit system.

2. What is the role of the swap partition? How do I determine the size of a swap partition?

The swap partition, which is the virtual memory under Windows, is primarily used when the system is out of memory, or when it is running out of time, and the older data inside the memory is temporarily put into swap so that a portion of the memory can be allocated to other programs. Generally when we install the system, we have to divide a portion of disk space to swap, usually we divide the memory size of twice times to swap, but sometimes your server has a large amount of memory such as 32G or even 64G, then there is no need to divide the size of twice times to swap, because that is too wasteful. My suggestion is that when the memory is not 8G, the memory is twice times, if more than 8G can be divided into 16G.

3. Amin in the tutorial, teach you how to divide the universal partition?
/boot 100M;
/20G;
/usr/20g;
Swap memory is less than 8G to twice times the memory, greater than 8G to 16G;
The remaining space is divided to/data/

4. After the system is installed, try the cloning of the VMware virtual machine.

http://blog.sina.com.cn/s/blog_9ba89b9901019bn9.html  

5. Check the information to understand the concept of grub, a brief description.

Grub is a boot loader based on the gun, which is a multi-OS manager that is used to boot different systems. Grub can manage Windows systems and can also manage Linux systems.

in theX86 Architectureof the machine, Linux,BSDor other Unix classes.Operating Systemin Grub,LILOis the most commonly used, should be said to be the mainstream.

Windows also has similar tools to Ntloader;

in the PowerPC architecture, if the PowerPC version of Linux is installed, mostly with the Yaboot multiboot manager, such as an apple machine.

6. How much do you know about time zones? What time zone are we using in China?

The 1884 International Warp Conference stipulates that the global longitude is divided into 24 time zones, each with a latitude of 15°.

The Prime Meridian (Greenwich Astronomical Observatory) is the central meridian of the time zone of 0 time zones, from 0 time zones to the east and west of the 12, east and West 12 are half time zones, common use of 180° meridians of the area. Each East

In one time zone, the time will increase by an hour.
In China, we generally use Beijing time, so-called East Eight district. When installing CentOS, we can choose Asia/shanghai or asia/chongqing but not asia/beijing

. NET Configure IP and network:

http://www.apelearn.com/bbs/forum.php?mod=viewthread&tid=626

Install Linux operating system automatically (KICKSTART+PXE unattended):

Http://www.apelearn.com/bbs/thread-645-1-2.html

Http://bbs.51cto.com/thread-621450-1.html

To install the system using the Kickstart form, how to customize the root password:

Http://www.apelearn.com/bbs/thread-731-1-2.html

Scholar-bureaucrat Vatican Guangdong nuclear power red carpet due to his family

Common sense problem Sets (ii)