Digital Currency
Gbogbo ọrọ náà
More and more money never takes a physical form at all. When you tap a card or pay through an app, no coins or notes change hands; only data moves between computers. Digital currency is that money, and cryptocurrencies push the idea further by removing the bank from the middle altogether.
In this lesson you will learn what a digital currency is and how it is used, then meet the problem a decentralised currency creates: with no bank in charge, how do you stop people cheating? The answer is the blockchain, a tamper-evident digital ledger, and you will follow exactly how it records and protects every transaction.
Ebumnobi
- 1 Understand the concept of a digital currency and how digital currencies are used
- 2 Understand the process of blockchain and how it is used to track digital currency transactions
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Digital Currency. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- A digital currency is best described as a currency that: A. exists only as coins and notes B. exists electronically rather than physically C. can never be used online D. is controlled by a single shop Answer: B
- Which protocol is used to encrypt digital-currency payment data sent between computers? A. HTTP B. FTP C. HTTPS D. SMTP Answer: C
- A cryptocurrency such as Bitcoin uses which type of system? A. centralised B. decentralised C. manual D. analogue Answer: B
- What is the digital ledger in a blockchain? A. a single encrypted password B. a list of all the transactions recorded by the blockchain C. a type of cookie D. the bank's central computer Answer: B
- Once a transaction has been added to a blockchain ledger, it: A. can be edited by anyone B. is deleted after a day C. cannot be changed D. becomes private and unviewable Answer: C
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Digital Currency? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
Dawunlodi Ẹpp naa lori Google Playstore.
Ihe nile ichoro iji nwee ihe ịga nke ọma na JAMB, WAEC & NECO.
