System Administration: Assignment 1: NAT
System Administration: Assignment 1
1 (a)
In VMWare Workstation 17, there are three different settings for the virtual network adaptor: bridged network, NAT network, and host-only network. What are their differences? (6 marks)
(b) Johnny would like to host a public web server and a database server inside the VM. Which networking mode should he choose? Explain your answer. (4 marks)
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2 After Peter opens the command prompt and types a certain command, the following output is shown:
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(a) What is the command Peter typed? (2 marks)
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(b) What is the IPv4 address of Peter’s computer? (2 marks)
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(c) Consider the subnet mask, how many distinct IP addresses can be assigned?
Thus, what is the maximum number of hosts in Peter’s subnet? (6 marks)
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3 There are a total of 3 Windows 10 machines in Room 4035. Let them be Computer A, B and C. You are the system administrator responsible for the setup in Room 4035. There are three main requirements for the setup:
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The three computers have to be in the same local area network.
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Computer A stores some documents. The documents need to be shared with Computer B and C as well.
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Computer C is hosting an IIS server on port 443. Computer A and B need to be able to browse the website.
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Explain your setup for the computers, such that it fulfills all 3 requirements
above. Name any server/service that needs to be installed and started running.
You can use graphs or drawings to help illustrate your setting.
(10 marks)
4 Donald prepared an empty 1TB hard disk to store the log files generated from a server. There are a total of 100,000,000 files and each file is at most 1KB large. However, when Donald transferred the log files, he encountered an error prompting that the disk space is not enough.
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(a) Theoretically, what is the maximum total size of all the log files? (2 marks)
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(b) Give a possible reason why Donald encounters this problem. Without increasing the total storage, suggest a solution to solve the problem. (8 marks)
6 (a)
crashes quite frequently, each recovery should not take too long. However, he would also like to minimize the storage space used for backup. Suggest a backup method he should adopt and explain your answer. (4 marks)
Give an example of a use case for domain. (6 marks)
Hint: Discuss the following aspects
Wherearethecomputers/Howmanycomputers?
Whatdoesthesystemadministratorwanttoperform/achieve?
Howcanitrelatetotheadvantagesofdomain?
Compare full backup and incremental backup. (6 marks)
5 (a)
(b) Johnny expects his system to run for at least 10 years. As his system
(b) Give an example of a use case for workgroup. (4 marks)
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7 With the help of diagrams/graphs/drawings, explain the relationship between domains, namespaces, organizational units (OU), and users.
(10 marks) -
8 Do a little experiment on your Windows Server. After promoting Window Server to be the domain controller, create a general domain user account called “Thomas” with password “P@ssw0rd”. Then log out the machine and re-login
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using “Thomas” with the password “P@ssw0rd”. Can “Thomas” log into the Window Server machine?
If your answer is “yes”, please explain your answer.
If your answer is “no”, suggest a solution such that Thomas can log into the
machine. (10 marks)
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9 Suppose you are the system administrator in ABC Company with domain name abc.com. You wish to install a new antivirus software “ABC Antivirus” to all domain users in the Business Department. List out the steps you will perform. The following diagram is the AD structure of ABC Company. (10 marks)
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10 By using a command in Windows command prompt, you need to find out the followings in association with HKU Space (hkuspace.hku.hk):
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(a) How many public mail servers are there in HKU Space? List all the mail server IPv4 addresses. (5 marks)
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(b) How many public DNS servers are there in HKU Space? List all the DNS server IPv4 addresses. (5 marks)
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