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Midterm

CS 17700 Midterm: CS17700 Midterm 2 2010 FallExam


Department
Computer Sciences
Course Code
CS 17700
Professor
All
Study Guide
Midterm

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CS 177 Fall 2010 Exam II
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1
There are 25 single choice questions. Each one is worth 4 points. The total score for the
exam is 100.
Answer the questions on the bubble sheet given.
Fill in the Instructor, Course, Signature, Test, and Date blanks in the bubble sheet. For
“Instructor” put your RECITATION INSTRUCTOR’S LAST NAME given in the table
below. For “Course” put CS 177. For “Test/Quiz” put 02.
Fill in the bubbles that correspond to your name, section and Student ID in the bubble sheet.
For your section number, use the SECTION NUMBER of your recitation section. Consult the
following list:
Sec
Rec Time
Rec Room
Rec Instructor
0001
WED 08:30
BRNG 1242
Kazi Mohammad
0002
WED 09:30
LWSN 1106
Ruby Tahboub
0003
WED 10:30
LWSN 1106
Jin Yu
0004
WED 11:30
LWSN B134
Gnana Kiruba Surendra Kumar
0005
WED 14:30
LWSN 1106
Uzunbaz Serkan
0006
FR 07:30
LWSN B134
Ruby Tahboub
0007
FR 08:30
LWSN B134
Kazi Mohammad
0008
FR 11:30
CL50 129
Gnana Kiruba Surendra Kumar
0009
FR 13:30
BRNG 1230
Jin Yu
0010
FR 15:30
LWSN B134
Uzunbaz Serkan
0011
FR 16:30
HAAS G066
Uzunbaz Serkan
For your student ID, use the 10 digit ID number on your student ID card. DO NOT USE YOUR
SOCIAL SECURITY NUMBER!
Exams without names will be graded as zero. Only the answers on the bubble sheet will
be counted. The questions will be discarded.
Remember to fill in also the fields on page 2.

Only pages 1-3 are available for preview. Some parts have been intentionally blurred.

CS 177 Fall 2010 Exam II
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2
Recitation Section Number________________________________
Recitation TA’s Name________________________________
Student Last Name_________________________________
Student First Name_________________________________

Only pages 1-3 are available for preview. Some parts have been intentionally blurred.

CS 177 Fall 2010 Exam II
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3
Q1. The binary representation for 11 is 01011. How would you express -11 in binary using
two’s complement notation?
A) 10101
B) 11011
C) 10100
D) 11100
Q2. If a sound file has 194040 samples and a sampling rate of 22050.0, what is the approximate
duration of the sound?
A) 6 seconds
B) 7 seconds
C) 8 seconds
D) 9 seconds
Q3. Which of the following can cause clipping in a given sound?
A) Decreasing the volume
B) Increasing the volume
C) Normalizing the sound
D) None of the above.
Q4. When increasing the amplitude of a sound, which of the following are true?
(i) Positive values of the sound samples get larger
(ii) Negative values of the sound samples get smaller
(iii) Negative values of the sound samples get larger
(iv) Positive values of the sound samples get smaller
A) (iii) and (iv)
B) (i) and (iii)
C) (i) and (ii)
D) None of the above
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