QUESTION 1

a) What is the main advantage of multiprogramming?

b) How does the distinction between the monitor mode and user mode function as a rudimentary form of protection (security) system?

c) What is the difference between a trap and an interrupt? What is the use of each function?

d) For what type of operations is the DMA useful? Justify your answer.

e) What are the 5 major activities of an operating system in regard to process management?

f) Briefly Explain the following types of Virtual Machines

i) Process VM
ii) System VM
iii) Hosted VM

g) As the system administrator of small and medium enterprise, explain how you can use the hosted virtual machine to create and environment which can provide multiple servers like a database server, a web server, an application server and an email server at low cost?

QUESTION 2

a) List two services provided by Active Directory?

b) Give examples of objects that can be found in Active Directory.

c) Explain the logical and physical structure of active directory. In your explanation list and describe any two entity (apart from trees and forests) that makes up the logical structure of Active Directory

d) There are the two ways for structuring Active Directory, either by using functions or locations. Explain each using relevant examples

e) What are the items and tasks that need to be completed before the installation of Active Directory?

f) What are the three elements that need to be shared among trees?

g) List and explain the three most common ways used to name domains?

QUESTION 3

a) List and explain the two main types of groups that can be created in active directory

b) List and briefly describe the three main types of group scope found in Active Directory?

c) In the following two situations, clearly explain what type of group scope you will use.

i) As the system administrator of your company, you are creating groups in a new domain in an Active Directory tree. You have resource on a Windows 2000 domain controller in the domain that will be accessed by groups from the local domain and from four other domains. What type of groups should you use?

ii) In an effort to reduce the number of calls handled by the help desk in your organization, you have decided to create a group of "user mentors" that will receive extra training and some extra permissions on the network. These users will be able to manage the user computers, which are grouped in a single OU in each of your six domains. They will also be able to reset the password of the users that are also grouped in an OU in each domain. The users that will be part of the program are scattered throughout the six domains. What type of group should you use to delegate the permissions they will need?

d) Using examples, explain the term Built-In Groups

QUESTION 4

a) When installing windows server, there are some important considerations that have to be taken care of by the administrator

i) Once a partition has been created for windows installation, the administrator has to select the file system to format the partition. Differentiate between the following file systems and specify which one is preferable

i. NTFS
ii. FAT
iii. FAT32

ii) To install windows server, a Client Access license (CAL) is required. Explain the two modes of licensing available for windows server

b) During Linux operation system installation, once the disk partitioning is performed, the installer formats the partition

i) What is the file system used for Linux operating systems?

ii) A swap partition is also created by default. Explain the purpose of the swap partition

c) Once the operating system is installed or in order to complete the installation, an important step is to make the machine available on the network. When using TCP/IP, computers can be configured to use either dynamic or static IP addressing

i) Explain the difference between static and dynamic IP addressing mode

ii) List two basic information required the static IP address of a host