UNIVERSITY EXAMINATIONS: 2016/2017
EXAMINATION FOR THE DIPLOMA IN NETWORK FORENSICS AND
COMPUTER SECURITY
DNF 505 INTERNET SERVER ENVIRONMENTS
DATE: AUGUST, 2017 TIME: 2 HOURS
INSTRUCTIONS: Answer question ONE and any other TWO questions.
QUESTION ONE
a) With the aid of a diagram, explain the DHCP sequence. (6 Marks)
b) Highlight the functions of the following protocols. (4 Marks)
i) HTTP
ii) SMTP
iii) FTP
iv) LDP
c) Highlight any THREE differences between Network Operating Systems and Distributed Operating
Systems. (3 Marks)
d) Discuss any FIVE protocols found in the TCP/IP Application Layer. (5Marks)
e) (i) What is Network Traffic Analysis? (3 Marks)
(ii) Give THREE reasons why it is important to analyze network traffic. (6 Marks)
f) Discuss THREE advantages of Static IP allocation. (3 Marks)
QUESTION TWO
a) Highlight any FOUR reasons why you would prefer Windows Server Operating Systems for
network administration. (4 Marks)
b) (i) Define Host Name Resolution ? (2 Marks)
(ii) Describe, THREE methods that Windows 2000 server family uses to resolve host names.
(6 Marks)
c) Explain the functions of the following DHCP commands
(i) ipconfig /displaydns
(ii) ipconfig /renew
(iii) ipconfig /registerdns
(iv)ipconfig /flushdns (8 Marks)
QUESTION THREE
a) Discuss THREE types of Top-level Domains (6 Marks)
b) Discuss the functions of the following Network troubleshooting utilities
i) ping
ii) netstat
iii) nbstat
iv) tracert (4 Marks)
c) Define IIS and discuss its core functions. (5 Marks)
d) (i) Discuss the function of the Windows Internet Name Service (WINS). (2 Marks)
(ii) Discuss THREE benefits of WINS (3 Marks)
QUESTION FOUR
a) Explain the function of the NetBIOS protocol. (4 Marks)
b) Explain how “search engines” work. (4 Marks)
c) Discuss the relationship between Operating Systems and Computer Hardware. (3 Marks)
d) (i) With the aid of a diagram, discuss the FOUR layers of the TCP/IP model. (5 Marks)
(ii) Highlight and TWO differences between the TCP/IP and OSI models. (2 Marks)
e) Define “web indexing”. (2 Marks)
QUESTION FIVE
a) Differentiate and explain the functions of the following Routing Protocols. (6 Marks)
(i) BGP
(ii) IGP
b) Explain the SSH Encryption and connection process. (6 Marks)
c) Define the following standard methods of resolution (6 Marks)
i). Local Host Name
ii). HOSTS file
iii). DNS Server
d) Discuss two core functions of a Windows Domain. (2 Marks)
