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Answer:
Design Phase
Explanation:
In design phase developers make prototypes. The prototype is the solution without actual implementation. That prototype is shown to the user for the purpose of getting feedback. So design phase of SDLC involves making improvements based on user feedback.
Answer:
The correct answer is:
Option 1: export the query results from the database to a spreadsheet, then export the graph to a document.
Explanation:
Spreadsheets are used to represent numerical data, perform calculations and display the results numerically or graphically.
When using a database, the query results can be exported to other software using the query web address.
So in order to include the graph in her report, Serena will export the result to spreadsheet and then export the graph to document.
Hence,
The correct answer is:
Option 1: export the query results from the database to a spreadsheet, then export the graph to a document.
Answer
First part:
The transmitted 8-bit sequence for ASCII character '&' with odd parity will be 00100110. Here leftmost bit is odd parity bit.
Second part:
The invalid bit sequence are option a. 01001000 and d. 11100111
Explanation:
Explanation for first part:
In odd parity, check bit of either 0 or 1 is added to the binary number as leftmost bit for making the number of 1s in binary number odd.
If there are even number of 1s present in the original number then 1 is added as leftmost bit to make total number of 1s odd.
If there are odd number of 1s present in the original number then 0 is added as leftmost bit to keep the total number of 1s odd.
Explanation for second part:
A valid odd parity bit sequence will always have odd number of 1s.
Since in option a and d, total number of 1s are 2 and 6 i.e. even number. Therefore they are invalid odd parity check bit sequences.
And since in option b and c, total number of 1s are 5 and 7 i.e. odd numbers respectively. Therefore they are valid odd parity check bit sequences.