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Noun (National open university) Live 2019 POP Exam questions
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[QUOTE="Bracet, post: 3632, member: 477"] [B]NATIONAL OPEN UNIVERSITY OF NIGERIA[/B] University Village, Plot 91, Cadastral Zone, NnamdiAzikiwe Expressway, Jabi, Abuja FACULTY OF SCIENCES [B]APRIL 2019 EXAMINATION[/B] [B]Course Code:[/B] CIT832 [B]Course Title:[/B] [B]Operating Systems and Networking[/B] [B]Course Credit [/B]Unit: 2 [B]Time Allowed:[/B] 2Hours [B]Instruction:[/B] Answer Question 1 and any other three (3) questions [B]Question 1:[/B] [LIST] [*]State and give the requirements of a secure distributed system3marks [*]Differentiate between Network Operating System and Distributed Operating System? 4marks [*]What are the major advantages of Distributed operating system?2marks [*]Briefly explain Multiprocessor Operating Systems2marks [*]List any four components used to connect two or more networks2marks [*]Differentiate between Repeaters and Bridges, stating their feature and purpose4marks [*]What is TFTP?(2 marks) [*]What protocol is used in TFTP for data transport?(2 marks) [*]How is TFTP session initiated? (2 marks) [*]How is integrity maintained using TFTP? (2 marks each) [/LIST] (25 marks) [B]Question 2:[/B] a.) Compare multiprocessing and multiprogramming? (6 marks) [LIST] [*]List three protocols that are included in the TCP/IP suite of protocols.3marks [*]Describe the following [/LIST] [LIST] [*]ICMP (2 marks) [*]RIP and(2 marks) [*]ARP/RARP? (2 marks) [/LIST] [B]Question 3[/B] a What are the three main purposes of an operating system? (7 marks) [LIST] [*]Explain the main difficulty a programmer must overcome in writing an operating system for a real-time environment?(3 marks) [*]To build a robust distributed system, you must know what kinds of failures that can occur. [/LIST] [LIST] [*]List three possible types of failure in a distributed system. (3 marks) [*]Specify which of those in your list are applicable to a centralized system. (2 marks) [/LIST] [B]Question 4:[/B] a. Name the system folders that are created in Windows 2000 to store program and data files; . (3marks) b. In Windows 2000 Directories: Describe the following : [LIST] [*]My Document, [*]My Computer and [*]My Network Places?(6 marks) [/LIST] c. What is a Forest? 2marks d. What is Auditing in Windows 2000? 2marks e. What specific events can be Auditing in Windows 2000? 2marks [B]Question 5: [/B] [LIST] [*]what is the function of each the following Linux command library and special characters: [/LIST] cal, who, ^u, ^c, AD, Is –a (6marks) [LIST] [*]what are the contents of the following Linux Directories: [/LIST] /dev, /etc, /lib (3 marks) [LIST] [*]What is the result of the following Linux File Manipulation Commands including their various options if any?(6 marks) [/LIST] [/QUOTE]
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