單項選擇題

Which ones are the two type of ciphers？（）

A. Blocking cipher andnon-blocking cipher
B. CBC cipher and EBC cipher
C. Block cipher and Stream cipher
D. Blocker cipher and Streamer cipher
E. 3DES cipher and AES cipher

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單項選擇題

Which SSL protocol takes anapplication message tobe transmitted， fragments the datainto manageable blocks， optionally compresses the data， applies a MAC， encrypts， adds a header， and transmits the resulting unit ina TCPsegment？（）

A. SSL Handshake Protocol
B. SSLAlert Protocol
C. SSL Record Protocol
D. SSL Change CipherSpec Protocol

單項選擇題

For a router to obtain a certificate from a CA， what is the first stepof the certificate enrollment process？（）

A. the router generates a certificate request and forwards it tothe CA
B. the router generates an RSA key pair
C. the router sends its public key to the CA
D. the CA sends its public key to the router
E. the CA verifies the identity of the router
F. the CA generates a certificate request and forwards it to the router

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Which ones are the two type of ciphers？（）

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Which SSL protocol takes anapplication message tobe transmitted， fragments the datainto manageable blocks， optionally compresses the data， applies a MAC， encrypts， adds a header， and transmits the resulting unit ina TCPsegment？（）

For a router to obtain a certificate from a CA， what is the first stepof the certificate enrollment process？（）

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Which ones are the two type of ciphers？（）

Which SSL protocol takes anapplication message tobe transmitted， fragments the datainto manageable blocks， optionally compresses the data， applies a MAC， encrypts， adds a header， and transmits the resulting unit ina TCPsegment？（）

For a router to obtain a certificate from a CA， what is the first stepof the certificate enrollment process？（）