11Symmetric encryption uses:AA public and a private keyBNo keyCThe same key to encrypt and decryptDA hash onlyView AnswerDiscussWorkspaceReportSaveEasy
12IP spoofing means:AEncrypting IP addressesBBlocking IP addressesCForging the source IP address of packetsDChanging a MAC address legitimatelyView AnswerDiscussWorkspaceReportSaveEasy
13Two-factor authentication requires:ATwo usernamesBTwo different kinds of evidence, e.g. a password and a one-time codeCTwo computersDTwo passwordsView AnswerDiscussWorkspaceReportSaveEasy
14A digital signature provides:AFaster deliveryBAuthenticity and integrityCAnonymityDCompressionView AnswerDiscussWorkspaceReportSaveEasy
15A DDoS attack aims to:AEncrypt files for ransomBGuess Wi-Fi keysCSteal passwords silentlyDMake a service unavailable by overwhelming it with trafficView AnswerDiscussWorkspaceReportSaveEasy