Question 1:
What is boot process in Linux?
OR
Explain Boot Sequence in Linux?
1. BIOS
2. POST
| 1th boot device is harddisk |
3. HDD
4. MBR
Boot Loader
Partition Table
Magic Number
5. SPLASH
6. GRUB
7. KERNEL
8. INITRD
9. FSTAB
10. INITTAB
11. RC FILE
Question 2: What different between SSH and Telnet?
SSH Telnet
Secure Not Secured
Port 22 Port 23
Send Data with Encryption Format Send Data on plan text
Used a public key Authentication not use any key
Question 3: What's different between HTTP and HTTPs?
HTTP HTTPs
HTTP (Hyper Text Transfer Protocol) HTTPs (Hyper Text Transfer Protocol Secure)
Work on Port 80 Work on port 443
Use plan text for data transfer Use encryption for data transfer
No certification required HTTPs need certification
Operates at application layer Operate at transport layer
Question 4: what's Different between NFS And Samba ?
NFS SAMBA
NFS is a protocol | SAMBA is a program that provide SMB/CIFS (Server Message Block / Common Internet File System) |
NFS work's only Linux Operation System | SAMBA work's both Linux and windows OS |
NFS port 2049 | SAMBA port 137:netbios, nmbd, 138:smbd, 139:netbios datagram and 445:smbd |
NFS Trust by default all and it's not used any authentication | SAMBA used authentication |
NFS provides UNIX file system | None Provide |
