encryption
使用闪卡高效复习COMPUTER-SCIENCE科目知识点
共计闪卡
10张
2 data transmission
闪卡自测
What is encryption?
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闪卡 1
问题
What is encryption?
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答案
Encryption is a method of scrambling data before being transmitted across a network in order to protect the contents from unauthorised access.
闪卡 2
问题
Define SSID.
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答案
SSID is Service Set Identifier, which along with a password is used to create a 'master key' for wireless network encryption.
闪卡 3
问题
What is cipher text?
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答案
Cipher text is encrypted data that has been scrambled using a master key.
闪卡 4
问题
Define plaintext.
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答案
Plaintext is the name for data before it is encrypted.
闪卡 5
问题
True or False? ** The master key is never transmitted in wireless** network encryption.
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答案
True. The master key is never transmitted in wireless network encryption.
闪卡 6
问题
What is symmetric encryption?
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答案
Symmetric encryption is when both the sender and receiver are given an identical secret key which can be used to encrypt or decrypt information.
闪卡 7
问题
Define asymmetric encryption.
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答案
Asymmetric encryption is when two keys are used, a public key known to everyone and a private key known only to the receiver.
闪卡 8
问题
What protocol is specifically designed for Wi-Fi security?
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答案
WPA2 is specifically designed for Wi-Fi security.
闪卡 9
问题
Define public key.
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答案
A public key is a key known to everyone in asymmetric encryption.
闪卡 10
问题
True or False? ** In asymmetric encryption, only the public key is needed** to encrypt and decrypt information.
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答案
False. ** In asymmetric encryption, both the public and private keys are needed** to encrypt and decrypt information.