Securing Data On A Network, Including The Internet
Gbogbo ọrọ náà
Every time data travels across a network it passes through cables, wireless signals, routers, and servers that other people could potentially intercept. The methods used to keep that data safe range from simple passwords to sophisticated encryption algorithms, and choosing the right combination depends on what you are protecting and who you are protecting it from.
In this lesson you will explore seven layers of network security: authentication, firewalls, encryption (including WEP, WPA, and public key cryptography), VPNs, file access rights, transaction logs, and backup strategies. You will learn how to match each method to a real scenario, a skill that Edexcel tests in both Paper 1 and Paper 2.
Ebumnobi
- Know about and understand the use of log-ins and passwords, firewalls, WEP/WPA, encryption, VPN, file access rights, transaction logs and backups
- Be able to select suitable methods of securing data for a particular context
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 Securing Data On A Network, Including The Internet. 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.
- Which wireless encryption protocol assigns a unique key to each device on the network? A) WEP B) WPA C) VPN D) Caesar cipher Answer: B
- What is the main purpose of a firewall? A) To encrypt data before it is sent B) To back up data automatically C) To inspect and filter data packets entering or leaving a network D) To assign usernames and passwords to users Answer: C
- In public key encryption, which key is used to decrypt a message? A) The sender's public key B) The recipient's public key C) The sender's private key D) The recipient's private key Answer: D
- Which type of backup copies only files that have changed since the last backup of any type? A) Full B) Differential C) Incremental D) Mirror Answer: C
- A company wants employees to access the office network securely from home. Which technology should they use? A) WEP B) Firewall C) VPN D) Transaction log 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 Securing Data On A Network, Including The Internet? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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