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WGUl D334l Pre-l Assessmentl (Latestl 2026/l 2027l Update)l Introductionl tol Cryptographyl |100%l Verifiedl Questionsl &l Answersl |l Gradel A
Q:l Whichl defaultl portl mustl bel openl forl thel IPsecl keyl exchangel tol bel successful?A.l UDPl 162 B.l TCPl 389 C.l TCPl 465 D.l UDPl 500
Answer:
UDPl 500
Q:l Whichl protocoll indicatesl thel virtuall privatel networkl (VPN)l isl usingl Authenticationl Headerl (AH)?A.l 48 B.l 50 C.l 51 D.l 58
Answer:
51
Q:l Whichl cipherl usesl al gridl tol mapl lettersl intol numericl values?
A.l Bifid B.l SHA-1 C.l Caesar D.l Vigenère
Answer: 1 / 3
Bifid
Q:l Whichl cipherl usesl al five-by-fivel matrixl withl nonrepeatingl characters?A.l Playfair B.l Raill code C.l Pigpen D.l Vigenère
Answer:
Playfair
Q:l Whatl doesl al frequencyl analysisl attackl tol breakl encryptionl involve?
A.l Analyzingl ciphertextl tol identifyl textl variationl andl comparingl thel textl tol standardl Englishl characters B.l Performingl anl exhaustivel searchl tol attemptl everyl possiblel mappingl orl key C.l Interferingl betweenl twol partiesl andl sometimesl interceptingl orl modifyingl datal inl thel communicationl stream D.l Identifyingl partl ofl thel ciphertextl andl thel correspondingl plaintext
Answer:
Analyzingl ciphertextl tol identifyl textl variationl andl comparingl thel textl tol standardl Englishl characters
Q:l Whichl techniquel shouldl al securityl analystl usel tol determinel thel keyl lengthl inl al Vigenèrel cipher?A.l Frequencyl analysis B.l Brutel force C.l Kasiskil examination D.l Knownl plaintext
Answer:
Kasiskil examination
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Q:l Whatl definesl al primel number?
A.l Onlyl hasl factorsl ofl itselfl andl 1 B.l Onlyl hasl factorsl ofl itselfl andl 2 C.l Evenlyl divisiblel byl 3.14 D.l Evenlyl divisiblel byl 10
Answer:
Onlyl hasl factorsl ofl itselfl andl 1
Q:l Whatl isl 29l modl 12?
A.l 0 B.l 3 C.l 5 D.l 7
Answer:
5
Q:l Whichl typel ofl cipherl isl ChaCha?
A.l Asymmetric B.l Block C.l Stream D.l Hash
Answer:
Stream
Q:l Whatl isl thel keyl sizel forl RC4l withl WEP?
A.l 40l bits B.l 128l bits C.l 256l bits D.l 512l bits
Answer:
40l bits
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