Network Systems Administration Question Paper
Network Systems Administration
Course:Bachelor Of Science In Information Technology
Institution: Kca University question papers
Exam Year:2011
UNIVERSITY EXAMINATIONS: 2010/2011
SECOND YEAR EXAMINATION FOR THE DEGREE OF BACHELOR OF
SCIENCE IN INFORMATION TECHNOLOGY
BIT 2205: NETWORK SYSTEMS ADMINISTRATION
DATE: APRIL 2011 TIME: 2 HOURS
INSTRUCTIONS: Answer question ONE and any other TWO questions
QUESTION ONE
a) (i) Explain the term ‘Structured Cabling’ [1 Mark]
(ii) There are four phases that cover all aspects of a cabling project. Describe each of these
phases. [4 Marks]
b) Describe the steps involved in gathering the symptoms of a network problem in order to determine
the scope of the problem. [5 Marks]
c) The existence and broad adoption of the Internet has ushered in new forms of communication that
empower individuals to create information that can be accessed by a global audience. Discuss why
collaboration tools have become important communication tools. [4 Marks]
d) When files are transferred between a host and an FTP server, the data is divided into smaller pieces
for transmission. As these pieces arrive at the destination host, they must be reassembled to
reconstruct the original file. Explain what provides for the reassembly of these pieces into the
correct order. [5 Marks]
e) State any four external factors that affect the success of communication. [4 Marks]
f) KCA University has a small campus where 25 faculty members are located. The faculty offices and
student computers are currently on the same network. The faculty is concerned about students
being able to capture packets going across the network and obtain sensitive material. Explain, by
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stating four advantages of your solution, what a network administrator could do to protect faculty
network traffic from student connections. [5 Marks]
g) Explain what kind of message a PING sends out to test connectivity. [2 Marks]
QUESTION TWO
a) How do you secure connectivity? [4 Marks]
b) Discuss briefly the following concepts
i) Disaster recovery [3 Marks]
ii) Disaster Recovery Plan [3 Marks]
iii) Network Continuity [3 Marks]
c) Why are routers still required for Ethernet networks in some cases even though multilayer switches
are available that operate at layer 3? [4 Marks]
d) State three goals of network security. [3 Marks]
QUESTION THREE
a) Explain any five ways that network managers can enhance availability and reliability of their
networks. [5 Marks]
b) Worm attack mitigation requires diligence on the part of system and network administration staff.
Coordination between system administration, network engineering, and security operations
personnel is critical in responding effectively to a worm incident. Discus the recommended steps
for worm attack mitigation. [4 Marks]
c) Each media type has its advantages and disadvantages. Outline five important factors to consider
when selecting media for computer networks. [5 Marks]
d) Briefly explain the motivation for changing IPv4. [6 Marks]
QUESTION THREE
a) Metro Ethernet is a rapidly maturing networking technology that broadens Ethernet to the public
networks run by telecommunications companies. IP-aware Ethernet switches enable service
providers to offer enterprises converged voice, data, and video services such as IP telephony, video
streaming, imaging, and data storage. By extending Ethernet to the metropolitan area, companies
can provide their remote offices with reliable access to applications and data on the corporate
headquarters LAN. Discuss three benefits of Metro Ethernet. [3 Marks]
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b) Describe how X.25 works. [6 Marks]
c) List four factors that have contributed to the success of Ethernet. [4 Marks]
d) The TestKing network administrator needs to determine what LAN devices to
install on the TestKing network.
(i) What are two advantages of using Layer 2 Ethernet switches over hubs? [2 Marks]
(ii) Using examples, explain how the two advantages come about. [4 Marks]
e) Define the term computer network. [1 Mark]
QUESTION FIVE
a) Outline the steps for correcting application layer problems [7 Marks]
b) Discuss three benefits of VPNs [3 Marks]
c) Discuss the ideal operating conditions for a wiring closet (wiring closet specifications). [8 Marks]
d) At which two layers of the OSI Model do Wide Area Networks operate in? [2 Marks]
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