Chapter 2 Computer Network

1. Give the definition of computer network.

• A computer network is a single computer connected to multiple monitors for extended display.

• A computer network is a group of computers that communicate telepathically without using any physical connection or data signals.

• A network is a collection of computers and devices connected together via communications devices and transmission media

• A computer network is a concept where computers randomly select which device to communicate with, based purely on how they “feel” about the other devices at the time.

1. Identify the communication device from the statement given.

It is a multiport device that reads the hardware addresses of incoming packets and transmit them to the appropriate and specific destination to improves network efficiency

• DSL Modem

• Switch / hub

• Repeater

• Router

1. Transmission media X is a widely used in networking because it is lighter, cheaper, more flexible, easy to install, and provides greater speeds than coaxial cables.

Identify transmission media X.

• Fiber Optic Cable

• Power Lines

• Twisted-Pair Cable

1. Which of the following is the advantage of using a computer network in education field.

• Allows students to skip classes since they can access everything at any time

• Enables teachers to control students' computers remotely without permission

• Instantly improves students' grades by automating test scores

• • Provide easy access to educational resources such as online libraries, educational websites, and virtual classrooms.

Which of the following statement best describe peer to peer network?

• Peer-to-Peer is a network architecture in which a small number of computers (often fewer than 10) communicate directly with one another and can share each other’s resources 

• A peer-to-peer network relies on a central server to manage all network communications and resources between connected devices.

• In a peer-to-peer network, only designated master computers can share resources, while all other devices function solely as clients.

• Peer-to-peer networks are exclusively used in large corporate environments because they require expensive, specialized hardware and complex configurations.

Which of the following is an advantage of Client-Server architecture.

• It ensures that if the server goes down, the clients can continue functioning normally without any disruption.

• It is more cost-effective and simpler to set up than a peer-to-peer network.

• It allows all clients to function independently without relying on the server for any resources or data.

• It centralizes resources and management, making it easier to maintain, secure, and back up data, while providing efficient access to shared resources for multiple clients.

1. Identify the network architecture based on the given scenario: Computer networks that employ a dedicated computer to store data, manage/provide resources, and control user access

• Client Server

• Peer to Peer

1. Identify the network architecture based on the given scenario: Each and every node can do both requests and responses for the service.

• Client Server

• Peer to Peer

Which of the following statement best describe Local Area Network (LAN).

• In a LAN, all devices are connected wirelessly by default, and wired connections are not supported.

• A local area network (LAN) is a network that connects computers and devices in a limited geographical area such as home, a school or small office complex

• A LAN is primarily used to connect devices in outer space for interplanetary communication.

• A Local Area Network spans across multiple cities and countries, connecting computers over vast distances.

Which of the following is the characteristics of WAN?

• • Covers a large geographical area.

• Owned, operated and managed by several Service Providers.

• typically confined to a single building

• Provide faster data transfer speeds