HIT172 Operating Systems and Applications Assignment

Section A

Question 1

1. Now a days the OS are capable of handling multiple tasks at the same time. What are the key differences between Multi-processing OS and Multi-threading OS?
   (Marks: 3.0)
2. Briefly write about Batch Operating Systems and Network Operating Systems.
   (Marks: 3.0)
3. AppLocker has become quite commonplace these days, explain briefly why we need to have the default rules in place.
   (Marks: 2.0)

Question 2

1. Full Stealth and Boot Time Filtering are two of the critical features of modern Firewalls state briefly what are the purpose of these two features. (Marks: 3.0)
2. The registry is at the heart of the Windows operating system, explain with example what are the Registry Keys and Values. (Marks: 2.0)
3. Convert the IPv4 address of 192.168.120.30 to its equivalent IPv6. (Marks: 1.0)
4. Explain the scenarios when each of these tools should be used while diagnosing problems in a network i) PING ii) TRACERT. (Marks: 2.0)

Question 3

1. Using Method-1 for chmod, set permission for a file named HIT172.txt in the format: -w- r-x --x (provide the complete command). (Marks: 1.0)
2. Using Method-2 for chmod, Allow Read and Write permission to owner and others for HIT172.txt, but Disallow the Execute permission. (Marks: 1.5)
3. Write the complete command to schedule a reboot of the system (Linux) at 9 AM. . (Marks: 1.5)
4. In a Linux system if we want to change a priority of the process to 4, how can we do that? (Marks: 1.5)
5. Write down the command to find out the word Tree from a text file named Trees.txt in a case insensitive manner. (Marks: 1.0)
6. Briefly explain how Network Access Protection (NAP) works. (Marks: 1.5)

Question 4

1. Briefly write about any of the two important account policies. In addition, explain in short in what circumstances BitLocker can be useful?
   (Marks: 2.0)
2. As an IT Support Officer, why do you think Windows Remote Desktop is important and what are the ways it can aid in your day to day responsibilities? (Marks: 2.0)
3. RAID is an important and well-adopted technology, explain the mechanism behind RAID Level 5. (Marks: 2.0)

Section B

Question 1

1. Draw the Gantt chart and find the average waiting time of the following processes using Priority Scheduling (Higher Priority Integer denotes the Higher Priority that is, a process having a priority integer of 7 has lower priority than a process having a priority integer of 9).
   (Marks: 2.5)

   Process	Burst Time (ms)	Priority
   P1	6	5
   P2	4	2
   P3	2	3
   P4	1	4
   P5	3	1
   P6	4	6

2. Draw the Gantt chart of the following processes using Round Robin Scheduling. Time Quantum = 5.5 ms. (Marks: 2.5)

   Process	Burst Time(ms)
   P1	4
   P2	5.5
   P3	6
   P4	1
   P5	22
   P6	8

Question 2

As the IT Administrator of a local company named Darwin IT, you need to set up a communication channel for the higher management of the company who will be accessing their respective office computers remotely, which can be from basically anywhere. They can also hold remote meetings through their office computers any hour of the day. Therefore Security of you communication channel is of optimum priority.
Mention in detail how you can establish such a secured channel of communication. In addition, if by any chance a security breach happens, how can you mitigate the damage? (Marks: 5.0)

Are you struggling to keep up with the demands of your academic journey? Don't worry, we've got your back! Exam Question Bank is your trusted partner in achieving academic excellence for all kind of technical and non-technical subjects.

Our comprehensive range of academic services is designed to cater to students at every level. Whether you're a high school student, a college undergraduate, or pursuing advanced studies, we have the expertise and resources to support you.

To connect with expert and ask your query click here Exam Question Bank