Which cipher uses 27 shift alphabets with letters being shifted up one place?
A. Scytale cipher
B. Vigenere cipher
C. Caesar cipher
D. World War II Enigma
B The Vigenere cipher uses 27 shift alphabets with letters being shifted up one place.
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A dangling pointer is a pointer
A) to a block of memory that has been deleted. B) that has been declared, but has not yet been assigned a value. C) that has not been initialized. D) that has been assigned the value of null or null_ptr. E) None of the above
If p is prime and a is a positive integer, then ap = a(mod p) is an alternative form of _________ theorem.
A) ?Rijndael’s B) ?Vignere’s ? C) ?Euler’s D) ?Fermat’s
A(n) ____________________ is an organization that provides servers for routing and storing email messages.
Fill in the blank(s) with the appropriate word(s).
A hyperlink with the _____ scheme may cause a web browser on a mobile device to initiate a phone call.
a. phone: b. sms; c. tel; d. mobile: