ITEC2110 Spring 2012 Test 1, Dr. Jim Rowan
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1)- How many different things can be counted using 7 binary digits?
2)- How many different things can be counted using 7 hexadecimal digits?
3)- Phenomenon in the real world can be described as having two different modalities,
discrete and continuous. How do you convert continuous phenomena to numbers?
4)- A 16 bit quantization level can encode 65,536 different levels. How many bits are
required to encode twice that many?
5)- A 10 bit quantization level can encode how many different levels?
6)- In binary, what does 1011 + 1 = ?
7)- How many BYTES are there in a file that has a 10MB file?
8)- You have an audio file that is (not counting the header and other administrative
overhead) 7MB in length. You know it is stereo, was sampled at 44,100 samples per
second and the quantization level is 8 bits. When opened with quicktime how long
should this audio file play?
9)- Using ADSL with upload speeds of 640 kbps how long will it take you to upload a
stereo audio file to your wiki site if the sample size is two bytes, the sample rate is 22,050
samples per second and the audio plays for 1 minutes and 5 seconds?
10)- You have an audio recording that is sampled at 22050 samples per second. Each
sample is 4 bits and there are two tracks because it is stereo. How many bytes of data
would you have captured if you recorded in stereo for 30 seconds?
11)- You have taken over a research project after the retirement of a colleague. One of
the things you inherited is a library of audio files that were sampled at 8,000 samples per
second with a 2 byte sample size. Your new research involves identifying sounds made
by elephants that are under 20 cycles per second. Why can you expect to be able to use
these files?
12)- You have an audio recording that is sampled at 22,050 samples per second. Each one
of these samples is one byte in length. It is not a stereo recording. This file plays for 45
seconds. What is the highest frequency sound this file could faithfully reproduce?
13)- For a gray linear gradient to be able to have 256 different shades of gray what is the
minimum number of bits that would be required to encode it?
14)-When counting in hexadecimal, what comes after BE?
15)- Given the number 10110011, can you tell me if this is a hexadecimal, binary or a
decimal number?
16)- A dialup connection is an asymmetric data connection. What does asymmetric mean
in this context?
17)- JPG is lossy compression technique. What does lossy mean in this context?
18)- Name one thing that affects the filesize of a vector graphic.
19)- ZIP is a lossless compression technique. What does lossless mean in this context?
20)- At home, your connection to the Internet will most likely be made using DHCP.
What does the use of DHCP mean in terms of the IP address?
21)- Most bound books are intended to be read from front to back in a linear manner.
Name one bound book that is not intended to be read from front to back in a linear
manner.
22)-Name an advantage of an electronic pdf version of a book that is not found in the
bound, paper version of that same book.
23)- Given this URL: http://www.pondliner.com/waterpumps/premiumPump.html what
is the domain name?
24)- Given this URL: http://www.pondliner.com in a traditional html based website, what
is the NAME of the page that will be retrieved from the server?
25)- Who not only said “The best way to predict the future is to invent it” but also proved
it by inventing the future of personal computing?