Information and Communication Technology - 0417 CIE

Networks

Bayani Gaba-gaba

Every time you stream a video, send a message or print to a shared office printer, a hidden chain of devices is quietly moving your data from one machine to another. A network is simply two or more devices joined together so they can share data and resources, and the moment computers are connected they need rules and special hardware to decide where each piece of data should go. Understanding that hardware is what separates someone who just uses a network from someone who can explain and fix one.

In this lesson you will meet the devices that build a network: the NIC that gives a machine its identity, the hub and switch that join devices into a local network, the bridge that links two such networks, and the router that connects you to the wider internet. You will see how Wi-Fi and Bluetooth carry data without wires, how cloud storage keeps your files on distant servers, and how a LAN, a WLAN and a WAN differ in size and purpose. By the end you will be able to describe each device and choose the right one for a given situation.

Manufura

Router.
The operation and purpose of a router including: • connecting networks and devices to the internet • storing computer addresses in a router • routing data packets.
Common network devices.
Including: network interface cards (NIC), hubs, bridges, switches.
wi-fi and Bluetooth.
The uses of wi-fi and Bluetooth Connecting a device to a network using: • wi-fi • Bluetooth Similarities and differences between Bluetooth and wi-fi.
Cloud computing.
The characteristics, uses and issues relating to cloud computing How data is stored, managed and shared using cloud computing Advantages and disadvantages of using cloud storage compared to other methods.
Common network environments.
Characteristics, uses and purpose of an extranet, intranet and the internet The differences and similarities between an extranet, intranet and the internet.
Network types.
Local Area Network (LAN), Wireless Local Area Network (WLAN), Wide Area Network (WAN) and the differences between these networks.

Takardar Darasi

Almost no computer works completely alone any more. Homes, schools and businesses all depend on networks to share printers, files and an internet connection, and the questions Cambridge asks in Paper 1 are rarely about whether a network exists. They are about which device does which job, why a switch is more secure than a hub, or how a router gets your data across the world. Learn the role of each piece of hardware clearly and these answers become easy marks rather than guesswork.

Akwai a cikin manhajar Green Bridge

Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.

Cikakkiyar bayanan darasi tare da zane-zane

Mataimakiyar koyo da AI

Yi karatu ba tare da intanet ba, a kowane lokaci, a ko'ina

Zazzage manhajar wayar hannu Zazzage manhajar kwamfyuta

Akwai a Android, Windows, macOS, da Linux

Nazarin Darasi

Barka da kammala darasi akan Networks. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.

Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.

Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.

Which device sends a data packet only to the computer whose MAC address matches, rather than to every device? A. Hub B. Switch C. Bridge D. Modem Answer: B
Which address is permanently fixed to a device when it is manufactured? A. IP address B. Web address C. MAC address D. Email address Answer: C
Which device is used to connect a local area network to the internet? A. Hub B. Switch C. Bridge D. Router Answer: D
Which network environment is private to a single organisation and sits behind a firewall? A. Internet B. Intranet C. Extranet D. WAN Answer: B
Which wireless technology is best suited to sending data over a short distance between just two devices, such as a phone and a headset? A. Wi-Fi B. WAN C. Bluetooth D. Satellite Answer: C