Which of the following is an invalid definition?

a. string sa = "computers";
b. string sb{"computers"};
c. string sc{"c"3};
d. string sd{9, 'c'};

c. string sc{"c"3};

Computer Science & Information Technology

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Which of the following template function definitions and invocations will not compile, if any? If not, why not?

Assume that classes have been declared with appropriate default constructors and assume that ``` //a) template A func( A x, A y){ return A(); } int main() { U u1, u2, u3; u2 = func(u2, u3); } //b. template B func() { return 1; } int main() { T t; t = func(); } //c. template void func(C x, int * y){} int main() { T t; int i; func( t, &i ); } //d. template void func(D x, E y){} int main() { T t; U u; func ( t, u ); } ```

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Computer Science & Information Technology

A technique used to con users into revealing their personal information is known as ________

Fill in the blank(s) with correct word

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Computer Science & Information Technology

Consider a relational schema R(A, B, C, D, E) with the following functional dependencies: A ? B, BC ? E, and ED ? A.

(a) List all keys of R. (b) Is R in 3NF? (c) Is R in BCNF?

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Computer Science & Information Technology

Using ____, when a device transmits a binary 0, a zero voltage is transmitted. When the device transmits a binary 1, either a positive voltage or a negative voltage is transmitted.?

A. ?Manchester B. ?bipolar-AMI C. ?differential Manchester D. ?NRZ-L

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Computer Science & Information Technology