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Modern Application Development I, Quiz 1

May 2023 term, 16 Jul 2023, Set QPF2

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Question 1

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Which of the following statements is/are true?

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A.
HTTP headers (for example “Content-Type”) are case-sensitive
B.
The body/payload in an HTTP request is mandatory
C.
The “Content-Length” header indicates the size of the request body in bytes
D.
All of these

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Which of the following statements is/are true? Consider a square matrix A given below. $$A = \begin{bmatrix} 12 & 21 & 25 \\ 11 & 8 & 30 \\ 9 & 19 & 17 \end{bmatrix}$$ Matrix B is another matrix whose elements represent the LSBs of binary equivalent of corresponding elements of matrix A. The determinant of matrix B would be ________. Screenshot of an email or phone input field showing the error "Enter a valid email or phone number"