Homework 1-4i

Homework 1-4i - IT 101 Homework#1 Due February 8 On or before 4:30 pm ALL QUESTIONS ARE EQUALLY WORTH Use Scranton form 882-E 1 Wi-Fi spoofing is

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IT 101 Homework #1 Due February 8 On or before 4:30 pm ALL QUESTIONS ARE EQUALLY WORTH. Use Scranton form 882-E 1. Wi-Fi “spoofing” is desirable in IT world a) True b) False 2. Which of the following is a cutting edge trend in IT? a) Dark fiber b) Biometric authentication c) Nanotechnology d) All of the above e) Only b) and c) 3. MP3 audio files were already used before digital photography             a) True            b) False      4.  What’s “Hot” in IT:          a) Wi-Fi b) Nanotechnology c) mobility d) All of the above e) only a) and c)    5.   The transistor is bigger than vacuum tube: a) True b) False 6. The Moor’s law states that the number of transistors on a chip will triple every 18 months a) True b) False 7. A hard disc with a capacity of 3 GB is able to store a) 85,899,345,920 bits
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b) 8,589,900,000 bits c) 2,577,000,000 bits d) 3,000,000,000 bits e) None of the above 8. An integrated circuit is basically comprised of a group of devices s interconnected to each other. a) True b) False 9. How many bits per second are transmitted with a 64 Kbps Transmitter? a) 1,000 bits per second b) 6,400 bits per second c) 64,000 bits per second 10. How many MB is found in 335,544,320 bits worth of information? a) 335 MB b) 35 MB c) 40 MB d) 100 MB e) None of the above 11. What are the advantages of digital domain a) ability for compression b) ability for noise removal c) error detection and correction d) all of the above 12. The larger the bit period, the smaller the data rate a) True b) False 13. Convert the binary representation 010111 into its decimal equivalent: a) 13 b) 33 c) 23 d) 27 14. Convert the decimal number 19 to binary: a) 1011 2 b) 10011 2 c) 100001 2
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15. Which of the following is the decimal equivalent of the binary number 111.01? a) 7.50 b) 7.25 c) 7.75 16. An IP address is how many octets (bytes) long? Select one. a) 4 b) 128 c) 16 d) 32 17. Which of the following could be an octal number? a) A7 b) 6 c) 8 d) Both b) and c) 18. Hexadecimal is called which of the following: a) Base 2 b) Base 8 c) Base 16 19. Convert the following BCD representation into its equivalent decimal form: 1000/0111/0011/0110 a) 1 28 24 28 b) 8 7 3 6 c) 7 3 7 8 d) 28 24 28 1 20. Convert the binary IP address 00010010 11000000 00000010 00100000 into “dotted” decimal format a) 192.16.32.2 b) 18.192.2.32 c) 18.156.2.16 d) 34.16.18.32
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Homework 2 Due February 15 1. One of the applications of transistor is to serve as an electronic switch a. True b. False 2. Integrated circuits (chips) are made of materials classified as semiconductors a. True b. False 3. The addition of binary 1 and 1 is 0 carry 1 a. True b. False 4. An odd decimal number, when converted to binary, will always end in a. 1 b. 0 c. Either 1 or 0 5. Express -9 in 8-bit 2’s complement notation a. 11110111 b . 11 01000 c. 00 010111 6. There are 75 students in the class. How many bits are required to assign a unique ID to
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This note was uploaded on 04/04/2012 for the course IT 101 taught by Professor Staff during the Spring '08 term at George Mason.

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Homework 1-4i - IT 101 Homework#1 Due February 8 On or before 4:30 pm ALL QUESTIONS ARE EQUALLY WORTH Use Scranton form 882-E 1 Wi-Fi spoofing is

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