Computer Networks
Bayani Gaba-gaba
Two computers on the same desk have nothing whatever to say to each other unless somebody has agreed, in advance and in enormous detail, how they will say it. What voltage means a 1. How big a chunk of data may be. What the receiver does if a chunk goes missing. How a machine on this side of the world is even addressed from the other. None of that is obvious, none of it is optional, and all of it is what a network protocol is for.
This lesson builds a network from the ground up. You will learn what a computer network is and what it costs as well as what it buys, the difference between a local and a wide area network, when to run a cable and when to go wireless, and how the star and bus topologies behave when something breaks. Then you will meet the protocols this specification names, the four layer model that organises them, and the four methods of network security you are expected to explain.
Manufura
- Define what a computer network is. Discuss the benefits and risks of computer networks. Describe the LAN and WAN types of computer network:
- Local Area Network (LAN)
- Wide Area Network (WAN).
- Understand that networks can be wired or wireless.
- Discuss the benefits and risks of wireless networks as opposed to wired networks. Explain the following physical network topologies:
- star
- bus.
- Define the term ‘protocol’.
- Explain the purpose and use of common network protocols including:
- Ethernet
- Wi-Fi
- TCP (Transmission Control Protocol)
- UDP (User Datagram Protocol)
- IP (Internet Protocol)
- HTTP (Hypertext Transfer Protocol)
- HTTPS (Hypertext Transfer Protocol Secure)
- FTP (File Transfer Protocol)
- email protocols:
- SMTP (Simple Mail Transfer Protocol)
- IMAP (Internet Message Access Protocol). Understand the need for, and importance of, network security. Explain the following methods of network security:
- authentication
- encryption
- firewall
- MAC address filtering.
- Describe the 4 layer TCP/IP model:
- application layer
- transport layer
- network layer
- link layer.
- Understand that the HTTP, HTTPS, SMTP, IMAP and FTP protocols operate at the application layer. Understand that the TCP and UDP protocols operate at the transport layer.
- Understand that the IP protocol operates at the network layer.
Taswirar tunani
An zana wannan batu don ka ga yadda ra'ayoyi ke hadewa.
Bude taswirar tunani a cikin manhaja
Takardar Darasi
Cikakken Bayanin Darasi Yana Kan Manhajar Green Bridge
Sami manhajar Green Bridge CBT a wayarka ko kwamfutarka domin cikakken laburaren IGCSE: takardun jarrabawar baya, tsarin kimantawa, taswirar tunani, katunan karatu da darussan sauti.
Nazarin Darasi
Barka da kammala darasi akan Computer 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 of these best defines a protocol? A. A physical cable joining two devices B. A set of rules that determine how data is communicated between devices C. A program that displays web pages D. The shape in which a network is wired Answer: B
- At which layer of the four layer TCP/IP model does the IP protocol operate? A. Application B. Transport C. Network D. Link Answer: C
- In which topology does a single break in the shared cable stop the whole network working? A. Star B. Bus C. Both equally D. Neither Answer: B
- Which protocol is used for sending email? A. IMAP B. FTP C. SMTP D. HTTP Answer: C
- What does MAC address filtering do? A. Scrambles data so it cannot be read in transit B. Allows or blocks devices based on the physical address in their network adapter C. Checks a user's password when they log in D. Splits data into packets for transmission Answer: B
Yi aikin wadannan tambayoyi a cikin manhaja
Yi aikin wadannan tambayoyi a cikin manhaja
Littattafan da ake ba da shawarar karantawa
Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Computer Networks? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
Sauke Manhajar Daga Google Playstore
Duk abin da kake buƙata don yin fice a JAMB, WAEC & NECO.
