Spring Semester 13, Dr. Punch. Exam #1 (2/14), form 1 A

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1 Spring Semester 13, Dr. Punch. Exam #1 (2/14), form 1 A Last name (printed): First name (printed): Directions: a) DO NOT OPEN YOUR EXAM BOOKLET UNTIL YOU HAVE BEEN TOLD TO BEGIN. b) You have 80 minutes to complete the exam (8:30-9:50) c) This exam booklet contains 26 multiple choice questions, each weighted equally (5 points) and one 20 point write some code question. Eight sides, 4 pages total d) You may use one 8.5" x 11" note sheet during the exam. No other reference materials or calculating devices may be used during the examination. e) Questions will not be interpreted during the examination. f) You should choose the single best alternative for each question, even if you believe that a question is ambiguous or contains a typographic error. g) Please fill in the requested information at the top of this exam booklet. h) Use a #2 pencil to encode any information on the OMR form. i) Please encode the following on the OMR form: n Last name and first initial n MSU PID n Exam form (see the title of this page) j) Please sign the OMR form. k) Only answers recorded on your OMR form will be counted for credit. l) Completely erase any responses on the OMR form that you wish to delete. m) You must turn in this exam booklet and the OMR form when you have completed the exam. When leaving, please be courteous to those still taking the exam. Good luck. Timing tip. A rate of 2.5 minute per multiple-choice problem leaves 15 minutes to write the 20 point program at the end Form A B D E C D D E D C AC D A E D A BC D C B C A E A C B B

2 Figure 1 1) Given user input of 5, what output does Line 1 in Figure 1 produce? a) 6 b) 5 c) 4 d) 3 2) Given user input of 5, what output does Line 2 in Figure 1 produce? a) 0 b) 1 c) 2 d) 3. 3) Given user input of 5, what output does Line 3 in Figure 1 produce? a) 3 c) 1 d) 0. 4) Given user input of 10, what output does Line 4 in Figure 1 produce? 0 b) 11 c) 1 2

3 d) 0. 5) Given user input of 5, removal of which line in Figure 1 makes the program loop infinitely? a) final = final + 1 b) var1 += 1 c) var2 -= 1 d) cnt = cnt ) Which of the following statements are true about Python namespaces? a) assignment places a variable in a namespace b) def places a function name in a namespace c) An executing function has its own namespace d) All of the above 7) What is the last element in the list of integers generated by range(1,5,2)? a) 4 b) 5 c) 6 d) 7 8) A python function invocation passes information that is received by the function object. What are the terms for what is passed between the two? a) Invocation passes a term, received as a value by the function b) Invocation passes a parameter, received as an argument by the function c) Invocation passes a value, received as a term by the function d) Invocation passes an argument, received as a parameter by the function 9) Which of the following are legal Python operations? a) 'abc' // 3 b) 'abc' + 1 c) 'abc' * 3 d) All of the above. 10) Which of the following represents the Boolean not operator? a) not b) ~ c)! d) % 11) "{1:<8.2f} is {0:s}".format('fun',1.789) generates what? a) '1.789 is fun' b) ' 1.79 is fun' c) 'fun is 1.79' d) '1.79 is fun' 12) What is the result yielded by the expression 3 or 2 a) 3 c) True d) False 3

4 13) Which of the following represents the largest integer Python can represent? a) c) 100! (factorial) d) Figure 2 14) Given the input abc123, what output is produced by Line 1 in Figure 2? a) abc123 b) 321cba c) a1b2c3 d) 3abc12 15) Given the input abc123, what output is produced by Line 2 in Figure 2? a) abc123 b) 321cba c) a1b2c3 d) 3abc12 16) Given the input abc123, what output is produced by Line 3 in Figure 2? b) 12 c) 123 d) abc123 17) Given the input abc123, what output is produced by Line 4 in Figure 2? a) 2 b) 3 c) 4 4

5 d) 5 18) Given the input abc123, what output is produced by Line 5 in Figure 2? a) 2 b) 3 c) 4 d) 5 Figure 3 19) Given a first input abcd and second ab what output is produced by Line 1 of Figure 3? a) abcd b) ab c) abcdab d) d 20) Given a first input abcd and second ab what output is produced by Line 2 of Figure 3? a) abcd b) ab c) abcdab d) d 21) Given a first input abcd and second ab what output is produced by Line 3 of Figure 3? a) abcd b) ab c) abcdab 5

6 d) d 22) Given a first input abcd and second ab what output is produced by Line 4 of Figure 3? a) abcd b) ab c) abcdab d) d Figure 4 23) Given first input 1 and second input 1, what output is produced by Line 1 in Figure 4? c) 3 d) 4 24) Given first input 1 and second input 0, what output is produced by Line 1 in Figure 4? c) 3 d) 4 25) Given first input 0 and second input 1, what output is produced by Line 1 in Figure 4? c) 3 d) 4 26) Given first input 0 and second input 0, what output is produced by Line 1 in Figure 4? 6

7 c) 3 d) 4 7

8 27) Write a small program question 20pts. Please, write on scrap paper first, then copy your answer to the next page Write a function that does the following: has two parameters: the first an integer and the second a string from the string parameter extract all the digits, in the order the occurred, from the string. o if no digits occur, set the extracted digits to 0 add the integer parameter and the digits extracted from the string together as integers return a string of the form: "int_param + string_digits = sum" For example: my_func(12, 'abc123') à ' = 135' my_func(20, 'a5b6c7') à ' = 587 my_func(100, 'hi mom') à ' = 100' Remember: efficiency and/or elegance is not required. Does it work is all that matters! comments are not required. readability does matter. Make it readable! Do it on scrap first! be clear about your indentation! Your program need only do what is requested. Nothing more, nothing less. 8

9 Name: Section: 9