-Install

-Configure

-Update

-Troubleshoot.

Linux - Open Source

Free BSD- Open Source

Solaris- Proprietary

HPUX- Proprietary

What is the difference between Proprietary and Open source ?

Proprietary- You only get the binary code. You can't upgrade or fix

Open Source - You get the source, you can make the binary code , and you can updrade or fix

What does Booting a computer Mean and what are the Processes

Booting means bringging up the system from a Powered off to a fully running operation system

Process

-Rom Loader

-Boot Block

-Loader

-OS

-Start Service.

Supervisor Login in UNIX is _________

ROOT.

What is Process in UNIX

Process is a Machine language program and the data it needs to operate

IN Unix, what is the name of the File System control block

SUPERBLOCK

What does SUPERBLOCK contain?

- File System Name

- Inode Table

-Pointer to the Free List

-Number of free block

What is an Inode

Unix file Control block

What are some of the information that the INODE contains

-Inumber

-Pointer to first block of file

-Permission

- Owner

What Command makes a File system in Unix?

MKFS

A telephone line terminating on a Multiplexer is an example of a _________

TIMESHARING

Some Disk Interface Technologies

- IDE

-SCSI

-USB

The Daemon that starts a periodic processes is called a _________

CRON

The Table that the CRon reads from is called a __________

CRONTAB

What are 3 types of Backup?

-Full

-Incremental

- Differential

Application Layer

Hooks for Application

Presentation Layer

Encryption, Compression, Decryption.

Session Layer

Login, work , Logout.

Transport

End to End Flow control.

Network Layer

Internetwork

Data Link Layer

Low level Flow Control

MAC, LLC

Physical Layer

Blast to bits.

Client

Requests services

Server

Provide Services to Clients

Services

File, Print, Email, Websites.