NIELIT A Level Java Solve Paper July-12

 July, 2012

A10.1-R4: INTRODUCTION TO OBJECT ORIENTED PROGRAMMING THROUGH JAVA

PART ONE

(Answer all the questions)

1. Each question below gives a multiple choice of answers. Choose the most appropriate one and enter in the “tear-off” answer sheet attached to the question paper, following instructions therein. (1x10)

1.1 In UML diagram of a class

A) state of object cannot be represented

B) state is irrelevant

C) state is represented as an attribute

D) state is represented as a result of an operation

What is MAN

NIELIT O Level Solved Paper

Internet and Web Technology

Q: Define MAN. Write down three important features that discriminate MAN from WAN.

A metropolitan area network (MAN) is a network that connect users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN) but smaller than the area covered by a wide area network (WAN). The term is applied to the interconnection of networks in a city into a single larger network (which may then also offer efficient connection to a wide area network). It is also used to mean the interconnection of several local area networks by bridging them with backbone lines. The latter usage is also sometimes referred to as a campus network.

What is Topology

Nielit O Level Solved Paper

Internet and Web Design

Q: Explain in brief: Bus, Star and Ring Network Topologies

Physical and logical arrangement of devices with a network is known as Topology.

Bus Topology

A bus topology is a network setup in which each computer and network device are connected to a single cable or backbone.A signal from the source is broadcasted and it travels to all workstations connected to bus cable. Although the message is broadcasted but only the intended recipient, whose MAC address or IP address matches, accepts it. If the MAC /IP address of machine doesn’t match with the intended address, machine discards the signal.

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