QUESTION ONE

a) Define the term "operating system" and highlight two types of operating system.
b) Outline four tasks which are performed by an operating system performance monitor.
c) Briefly describe six functions of an operating system.

QUESTION TWO

a) Explain the difference between an extended machine and a resource manager in the context of an operating system
b) State any four requests made by the set-up program during the installation of operating system
c) Paul Smith, an information communication technology (ICT) student, is on internship at Blue Horn Ltd. The ICT manager would like Paul Smith to implement redundant array of independent disks (RAID) technology to the company's database server.

Required:

Explain the five levels of redundant array of independent disks (RAID) which Paul Smithwould configure on the database server in order to implement the RAID technology.

QUESTION THREE

a) State four factors which determine the size of the directory services database.
b) Highlight six functions which can be performed by the systems administrator or user properly implemented operating system directory services environment.
c) You are employed as a system support technician by TN Ltd. The finance manager has informed you that most computers in the finance department are down.

Required

Describe a suitable troubleshooting methodology you would apply in identifying the problem affecting the computers in the finance department.

QUESTION FOUR

(a) The domain name system (DNS) is used to resolve host names on a local area network (LAN) or the internet. Explain in brief the two main components of a domain name system (DNS)
(b) (i) State the syntax used to run NSLOOKUP utility.
(ii)Give the steps used to run NSLOOKUP utility in an interactive mode.
(c) The system administrator of Sky Ways Inc. Is in the process of upgrading the company's intranet. The main objectives of upgrading the intranet is to optimize the browsing traffic.

Required

Briefly describe four ways in which the system administrator would be able to optimize the intranet browsing traffic.

QUESTION FIVE

Operating system provides a mechanism for configuring the behavior of the keyboard attached to the computer. Outline the behavior of the following sets of keys after they have been configured correctly:

Sticky keys.
Filter keys.
Toggle keys.

The display utility setting of an operating system is used to configure the "looks and feel" properties of an operating system:
Indicate the importance of the following display properties utility settings:

Theme
Desktop
Screensaver
Appearance

Define the term "hardware profile" and state the steps followed when creating a new hardware profile.