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Questions and Answers
What is a key characteristic of hoaxes in the context of computer networks?
What term is used to describe a group of two or more similar things or people interconnected with each other?
Which statement best describes the interconnection in today's digital world?
What kind of networks can be found in everyday life?
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What is the significance of networking in the current connected world?
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Which of the following best defines a computer network?
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What is the role of networking devices in a computer network?
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What are the smaller chunks of data called that are transmitted over a network?
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Which of the following is NOT considered a type of node in a computer network?
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In a communication network, how can devices be interconnected?
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Study Notes
Computer Networks Overview
- Computer networks enable real-time production, exchange, and tracing of information globally.
- They establish interconnections among computers and devices, allowing data and resource sharing.
- Networks can vary in size from a few interconnected computers in a room to large systems linking various devices.
Types of Networks
- Social Networks and Mobile Networks are examples of interconnected groups in daily life.
- Computer Networks consist of various hosts, including servers, desktops, laptops, and mobile phones.
Networking Devices
- Essential networking devices include switches, routers, and modems, which connect multiple computers.
- Data communication is based on packet-switching; information is divided into packets for transmission.
- Connection can be achieved via wired media (cables) or wireless media (signals).
Nodes in a Network
- Each network device that can send, receive, or store data is termed a node.
- Nodes play a crucial role in facilitating communication across the network.
Ethernet Card (NIC)
- An Ethernet Card, or Network Interface Card (NIC), allows a computer to connect to a wired network.
- It is mounted on the motherboard and interfaces with Ethernet cables, supporting data transfer rates from 10 Mbps to 1 Gbps.
- Each NIC carries a unique MAC address for identification on the network.
RJ45 Connector
- RJ45 is an eight-pin connector used with Ethernet cables, standard at the end of network cables.
- This plastic connector fits into RJ45 jacks found on Ethernet cards, enabling network connectivity.
Repeaters
- Repeaters regenerate weakened signals to maintain communication over distances beyond 100 meters.
- They are essential for sustaining the quality of data transmission in longer cable runs.
Local Area Network (LAN)
- LANs provide high-speed data transfer rates between 10 Mbps (Ethernet) and 1000 Mbps (Gigabit Ethernet).
- They facilitate short-range communication and allow document printing, uploading, and downloading from local servers.
Metropolitan Area Network (MAN)
- MAN is an extension of LAN, covering larger areas such as cities or towns, with a reach of 30-40 kilometers.
- Data transfer rates in MANs are generally lower than in LANs and include services like cable TV and broadband internet.
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Description
Test your knowledge on Chapter 10 of Computer Networks, focusing on the impact of human behavior on the spread of hoaxes. This chapter explores how these vulnerabilities can lead to the replication and distribution of misinformation. Prepare to dive into the psychological aspects that influence network security.
