What is a BIOS? How do I enter the BIOS?
BIOS basic input/output system, generally press DEL or F2 into the BIOS setup program.
What is a virtual machine?
A software program that runs on a computer, simulating computer hardware functions to provide a separate computer environment for other software programs.
Virtual machine run mode?
1) Alien Architecture
Installed on the operating system as an application software, you can install multiple operating systems on this application software
2) Native architecture
Virtual machine software is installed directly on the computer hardware
The virtual machine itself is an operating system
IP address role, composition, classification?
1) Function: Used to identify a node's network address
2) Composition: Network bit + host bit, 32 bits, in 4 decimal numbers to represent, between. Separated
3) Classification:
A 1-127 Net + master + Master + Master
B 128-191 Net + Net + Master + Master
C 192-223 + net + Net + Master
D 224-239 Multicast (multicast)
E 240-254 Research
4) Default Subnet mask
Class A 255.0.0.0
Class B 255.255.0.0
Class C 255.255.255.0
Alternate Configuration private IP address?
169.254.0.1-169.254.255.254, subnet mask is 255.255.0.0
Private address range:
Class A 10.0.0.1 ~ 10.255.255.254
Class B 172.16.0.1 ~ 172.31.255.254
Class C 192.168.0.1 ~ 192.168.255.254
Common built-in user accounts
1) Administrator (Admin user) The default administrator user. This account cannot be deleted and renamed for security advice.
2) Guest (guest user) is disabled by default, provided to users without an account for temporary use, it only has limited permissions.
What does the ALP rule mean?
Local users are joined to local groups, and only local groups are assigned permissions (meaning of the ALP rule)
Common file Systems
FAT, NTFS, EXT
How to access a shared folder
1) Browse through "network" (Must enable "Network Discovery")
2) via UNC path: \ server address \ Share name
3) Map Network drive: net use H: \ server ip\ share name
What is a print device and what is a printer?
1) Printing equipment (physical):
Also called a physical printer, a hardware device for printing
2) Printer (logical):
Also called a logical printer, software added for use with a print device
Advantages of dynamic disks
Higher scalability, high reliability, and high read/write performance than basic disks.
Features of five dynamic disks
Volume type disk number storage capacity performance failover
Simple Volume 1 All
Cross-region volume 2~32 all unchanged No
Striped volume 2~32 all read and write promotion many without
Mirrored Volume 2 half read promotion, write down support fault tolerance, general operating system placed in this volume has
RAID-5 Volume 3~32 disks-1 read boost, write down, faster, general data placed in this volume supports fault tolerance, read speed has
Operational White Essentials Windows system
