Describe the concepts of snapshotting and failover

Assignment Help Basic Computer Science

Reference no: EM13935924

Describe the concepts of snapshotting and failover as applied to virtualization.

Task 1.4
Describe how to tell if two machines are on the same IP network from their IP address and their subnet mask or their CIDR value.

Task 1.5
Create a table that shows the maximum number of networks and nodes associated with class A, class B and class C IPv4 addresses. Also show in your table the associated CIDR notation of each class type.

Task 1.6
Some of the following are not valid IPv6 values. What is wrong with each incorrect value?

FE80:0:0:ABAB:A00H:1212:2341:0

2001::1212:ab13

FE80::1231::1121

FE80:0:1212:AB13

Topic 2 : Configuring IP in Windows & Linux

Task 2.1 - Weekly summary of lecture slides

Complete a summary of the week's lecture material as per the "Topic summary requirements" guidelines on page 2 above.

Topic 2 questions:

Task 2.2

Describe the roles of the following:
· An IP address
· A default gateway
· A DHCP server

· A DNS server

Task 2.3

Complete the following table.

IPv4 /CIDR networks and equivalent subnet masks
CIDR notation
Equivalent
subnet mask
(Binary)
Equivalent subnet mask
(decimal notation)
/16
11111111.11111111.00000000.00000000
255.255.0.0
/18
/19
/20
/21
/22

Task 2.4

Describe why IPv6 tunnels are required at this point in history.

Task 2.5

Briefly describe the infrastructure and operation of worlds IPv4 DNS infrastructure and explain why it is critical to the operation of the Internet.

Topic 3 : Introducing Linux

Task 3.1 - Weekly summary of lecture slides

Complete a summary of the week's lecture material as per the guidelines on page 2 above.

Topic 3 questions:

Task 3.2

Linux was developed by a person from Finland. What is this person's name and briefly describe (few paragraphs only) points of interest about Linux development. This could be current day development or development of the initial Linux kernel.

What is the name of the Penguin mascot of Linux?

Task 3.3

In topic 3 we briefly discussed numerous Linux commands.

Create a table with all Linux commands encountered in topic 3 and give a short description of the function of each command.

Task 3.4

Choose any one of the above commands and fully document it. (One A4 page maximum). Your documentation should provide a low skilled PC user the information necessary for him/her to successfully use the command.
[This exercise should demonstrate the benefits to be had from writing your own documentation for complicated commands/concepts etc.]

Task 3.5

Fully document how to use the chmod command to change permissions using octal notation.

Task 3.6

Fully document how to use the chmod command to change permissions using symbolic notation.

Task 3.7

When you apply permissions to Linux directories they have a different effect to when they are applied to files. Explain why.

Topic 4 : File Systems

Task 4.1 - Weekly summary of lecture slides

Complete a summary of the week's lecture material as per the guidelines above.

Topic 4 questions:

Task 4.2

There is a significant difference in structure between the Linux file system and the file system in a Windows based machine.Explain the differences.

Task 4.3
Linux uses a process called mounting to establish a complete file system.
Describe what happens in a Linux mount and fully document the mount command along with all its arguments.

Task 4.4

Describe with examples the difference between Absolute and Relative Linux file system paths.

Task 4.5
Copying files from one directory to another is a task all Linux users must be fully proficient.
Describe (with examples) the following:
· How to copy a single file from anywhere to anywhere (absolute paths)
· How to copy multiple files from anywhere to anywhere (absolute paths)
· How the wildcard ? and * can be used in copy commands
· How the . and .. notations are used in copy commands
Note - The above methods are used in many Linux commands.

Topic 5 : Linux Internals
Task 5.1 - Weekly summary of lecture slides
Complete a summary of the week's lecture material as per the guidelines above.

Topic 5 questions:
Task 5.2
Shell scrips are used in Linux to automate complicated and repetitive tasks. Such scripts often use variables, pipes, parameters and grep to achieve the desired outcome.
Your task is to create an example script for each of the above (in bold text) that demonstrates how it works.Your 4 examples must be fully documented so that someone unfamiliar to Linux scripting could understand how each script works and therefore comprehend each of the 4 scripting concepts you have described.

Topic 6 : Securing Windows
Task 6.1 - Weekly summary of lecture slides
Complete a summary of the week's lecture material as per the guidelines above.

Topic 6 questions:
Task 6.2
Pre-emptive multitasking underpins all modern Operating Systems. Describe how pre-emptive multitasking operates and discuss why it is so important to operating systems like Windows and Linux.

Task 6.3
Describe the differences between Local, Roaming and Mandatory profiles.
Describe situations under which you would choose mandatory profiles over roaming profiles.

Task 6.4
There are similarities between the file system permissions used in Linux and Windows NTFS file permissions. Discuss.

Topic 7 : Windows Internals
Task 7.1 - Weekly summary of lecture slides
Complete a summary of the week's lecture material as per the guidelines above.

Topic 7 questions:
Task 7.2
There are many common elements between Linux shell scripting and Windows batch file scripting.
List five (5) such similarities describing common characteristics as well as any differences. Include at least 1 example in each case.

Topic 8 : File Sharing
Task 8.1 - Weekly summary of lecture slides
Complete a summary of the week's lecture material as per the guidelines above.

Topic 8 questions:
Task 8.2
Samba servers perform the same role as a Windows servers; that is they both allow the sharing of folders\directories and their contained files to Windows clients.
1. Describe how to setup a shared folder on a Windows XP machine to share a folder with your student ID as the share name.
The share should be writable; it should use user security and only allow access to two specified users.2. Configure the same setup using Samba.

Your write-up of this exercise should include a screen capture of the Windows share dialog, and a printout of the smb.conf file.

Task 8.3
Discuss with appropriate screen captures at least 3 ways to establish a connection from a Windows client to a Windows or Samba server.

Topic 9 : Remote Access

Task 9.1 - Weekly summary of lecture slides

Complete a summary of the week's lecture material as per the guidelines above.

Topic 9 questions:

Task 9.2

The Remote Access lab session details how to:
1. Administer (via command line) a Linux machine from a Linux machine via an ssh connection
2. Run GUI applications across the ssh link
3. Copy file between machines using scp
4. Administer a remote Linux machine from XP (command line only)
5. Connect to a remote XP machine using Remote Desktop

Detail with appropriate screenshots the procedures required to accomplish each of the above networking tasks.

Your descriptions should help you consolidate some of the procedures that can be used to access remote machine via a network connection.

Topic 10 : Various topics
No summary or questions are required for topic 10.

Reference no: EM13935924

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