Chapter 5 - Local Area Networks: Software and Support Systems

Question 1

Network Operating System

Answer 1

a large, complex program that manages the resources common on most local area network

Question 2

Common features of network operating system

Answer 2

• provide sharing computer resources
• provide a way to store and manage files in an organized manner
• provide a means of backing up and encrypting data
• provide a means of communication over the Internet by making use of the TCP/IP protocol

Question 3

Network Operating System Functions

Answer 3

• Manage one or more network servers
• Maintain a file system of data sets, applications, user profiles, network peripherals
• Coordinate all resources and service available
• Process requests from users
• Manage one or more network printers
• Manage the interconnection between local area network

Question 4

Network servers

Answer 4

High-power workstations often with multiple processors, RAID, SCSI, and a lots of memory and disk space.

Question 5

Novell NetWare

Answer 5

• Was the leading local area network OS (fallen way down the list now)
• Introduced a number of very powerful concepts including:
- Hierarchical directory structure
- Netware file system

Question 6

Windows NT Version 4

Answer 6

• Based on popular Windows OS (User Interface)
- NOT the same as Windows 98/Windows Me
• Full service multitasking OS
- Capable of supporting multiple servers
• NT systems:
- Works very well with other Microsoft products
• NT supporting large systems (Questionable)
• Blue Screen of Death (BSOD) plagues NT systems

Question 7

Windows 2008

Answer 7

• Newest version of Windows network OS
• Continue improvements:
	- Active Directory
	- New management tools
• New server core
	- Including a virtual server
• Self-healing server:
	- Can fix corrupted files and/or folders
• Increased processing speed
• Advancements in network security

Question 8

Unix

Answer 8

• Older
- Popular multitasking OS
~ Capable of supporting network operations
• First OS:
- Written in C language
• Very stable system:
- Capable of supporting very large operations
• Numerous versions available from different vendors
• Source code:
- Readily available to everyone
• If a program needs to be modified/developing a procedure:
- Code can be simply written for the change (by the administrators)

Question 9

Linux

Answer 9

• Based on Unix’s principles
• Many versions available for:
	- Free
	- Very small price
• Very stable multitasking OS
	- Just like Unix
• Uses the most common, available programs to enhance the kernel:
	- GIMP
	- KDE
	- GNOME
	- Apache web server

Question 10

Mac OS X Server

Answer 10

• Version X is based on Linux code
- Very stable and quite powerful
• Capable of supporting non-Apple networks as well (other than Apple networks)

Question 11

Active directory server

Answer 11

Active Directory Domain Services (AD) is a server role in Active Directory that allows admins to manage users account.

Question 12

File server

Answer 12

A file server is a computer attached to a network that has the primary purpose of
• providing a location for shared disk access,
- i.e. shared storage of computer files that can be accessed by the workstations that are attached to the same computer network.

Question 13

Antivirus server

Answer 13

A server is a computer attached to a network that has the primary function to carry out real time virus scan for the computers

Question 14

Web Application server

Answer 14

A server is a computer attached to a network that allows the user to create web applications.

Question 15

Anti Virus software

Answer 15

It is designed to detect and remove viruses that infected the system memory, disks and operating system.

Question 16

Anti Spam Software

Answer 16

It is designed to block the unwanted email from user workstation or email server.

Question 17

Anti spyware software

Answer 17

This software can locate and clean the spyware programs found in the computer memory and hard drive.

Question 18

Backup software

Answer 18

This software can allows network admin to backup data files currently stored on the server’s hard disk drive

Question 19

Network monitoring software

Answer 19

This software can monitor network servers and report on the CPU utilisation.

Question 20

Crash protection software

Answer 20

This software can keep on the OS running long enough. Also known as a rollback software.

Question 21

Security assessment software

Answer 21

This software can scan the IP address to detect any type of network security weakness (Vulnerabilities).

Question 22

Remote access software

Answer 22

This software allows the user to access all the functions of a PC from a remote location.

Question 23

Uninstall software

Answer 23

This software can allows the user to locate and remove an application.