7.   __________________ representation of a binary number uses the bit following (after)

      the most significant bit as the sign bit, making it possible to determine whether an

      integer is negative or positive.

      A). 2’s complement

      B). 1’s complement

      C). bitwise complement

      D). bitwise negation

8. To obtain the 2’s complement of a binary number, it is necessary to flip (reverse) the

      bits and ___________________________.

      A). subtract 1

      B). divide by 1

      C). complement by 1

      D). add 1

9.   An overflow condition in signed numbers has occurred when ___________________.

     A). the carry into the sign bit is different from the carry out of the sign bit

      B). the carry into the sign bit equals the carry out of the sign bit

      C). the carry into the sign bit is a multiple of 10 of the bit value on the carry out of the

            sign bit

      D). the carry into the sign bit is a negative value

10. Expresed as a series of 8 bits, the binary number that results from the addition of the

     decimal (base 10) numbers 120 and –132 is ___________________________.

      A). 00010100

      B). 01010000

      C). 11110100

      D). 00000011

11. The hexadecimal (base 16) equivalent of the binary (base 2) number 110111110111

       is _________________________.

       A). FE7

       B). DF7

       C). D0E

       D). EAD

12. In the EBCDIC collating sequence, lower case alphabetic characters ‘a’ thru ‘z’ are

      considered to _____________ in value than upper case alphabetic characters A

      thru Z.

      A). be lower

    B). be higher

      C). be equal

      D). have more precision

13. One of the inherent problems with migrating code from EBCDIC-based systems to

      ASCII-based systems is that ____________________________________________.

      A). the executable code will run slower on an ASCII-based system than on an

            EBCDIC-based system

      B). output results from sort routines and SQL queries may differ between the two

            systems depending on the specific database values being processed

      C). system performance bottlenecks will occur when the executable code runs on the

            ASCII-based system that did not exist when the executable code ran on the

            EBCDIC-based system

      D). executable code running on EBDCIC-based systems cannot be optimized to run

            faster.

14. Three common Boolean operators are _________________________________.

       A). ADD, SUBTRACT, and DIVIDE

       B). NOT, DIVIDE, and EXCLUSIVE OR

       C). NOT AND, NOT OR, and EXCLUSIVE OR

       D). AND, OR and NOT

15. When the Boolean operator __________ is applied to a Boolean expression, the result

      is the complement of the expression.

      A). NOT

      B). OR

      C). AND

      D). bitwise complement

16. The basic physical component of a computer is the __________________; the basic

       logic element is the _______________.

       A). motherboard, transistor

       B). transistor, multiplexer

       C). transistor, gate

       D). gate, transistor

17. The rules of precedence of Boolean operations are __________________________.

       A). the OR operator has highest precedence, followed by the NOT operator, then the

             AND operator

       B). the NOT operator has highest precedence, followed by the AND operator, then

             the OR operator

       C). the AND operator has the highest precedence, followed by the OR operator, then

             the NOT operator

       D). the NOT operator has highest precedence only when followed by the OR

             operator

18. A(n) ______________ is an electronic device that produces a result based on two or

      more input values.

      A). gate

      B). arithmetic logic unit

      C). transistor

      D). central processing unit

19. The output of the ________________ Boolean operation is true only when the values

      of the inputs differ.

      A). NOT AND (NAND)

      B). NOT OR (NOR)

      C). EXCLUSIVE OR (XOR)

      D). ANDOR (AOR)

Most companies using process costing systems have to calculate more than one EUP. Why? How many do they have to calculate?

Journalize the entries for the following transactions. Refer to the Chart of Accounts for exact wording of account titles. (Note: The company uses a clearinghouse to take care of all bank as well as non-bank credit cards used by its customers. )

CHART OF ACCOUNTSGeneral Ledger

Journalize the entries for the transactions on December 31. Refer to the Chart of Accounts for exact wording of account titles.

PAGE 10

JOURNAL

ACCOUNTING EQUATION

Iodine-131 is an isotope of iodine (Z = 53) used for the treatment of hyperthyroidism, as it is readily absorbed into the cells of the thyroid gland. With a half-life of 8 days, it decays into an excited Xenon-131 atom (Z = 54).

1.What type of radioactive decay occurs in this process?

a. alpha decay

b. electron capture

c. gamma decay

d. beta decay

2. The related isotope iodine-125 is used in brachytherapy. In what way does it differ from iodine-131?

a. The number of beta particles

b.The number of neutrons

c.The number of electrons

d.A different number of protons

3.Which of the following is a true statement regarding the atomic mass during the decay from iodine-131 to xenon-131?

a. We expect the mass has decreased because xenon-131 has one less proton

b. We expect the mass has decreased because xenon-131 has one more proton.

c. We expect the mass has increased because xenon-131 has an extra proton.

d. We expect the mass has increased because xenon-131 has one less proton

4. What percentage of an iodine-131 sample remains after 44 days?

a. 50%

b. 88%

c. 2.2%

d. 3.1%

5. The SI unit for activity (decays per second) is the Becquerel (Bq). A hospital receives a shipment of iodine-131 with an activity of 8 × 1010 Bq. After 16 days, there are several patients that need to be given doses of 1 × 109 Bq each. How many patients can be treated?

a. 10 patients

b. 20 patients

c. 40 patients

d. 80 patients

A __________________ is a combinational circuit that is useful in selecting a

      memory location according to a binary value that is placed on the address lines of a

      memory bus.

      A). multiplexer

      B). gate

      C). transistor

      D). decoder

21. A _______________ is a combinational circuit that selects a single output from

      multiple inputs.

      A). decoder

      B). multiplexer

      C). AND gate

      D). OR gate

22. ___________________ creates logic diagrams using the values specified in a truth

      table.

      A). Digital synthesis

      B). Digital analysis

      C). Circuit design

      D). An Embedded system

23. The two principal parts of the CPU are the _____________ and the ____________.

      A). memory bus, arithmetic logic unit

      B). memory bus, registers

      C). datapath, control unit

      D). datapath, arithmetic logic unit

24. A ___________ allows the CPU to share data with other system components.

      A). logic bus

      B). memory bus

      C). system bus

      D). data bus

25. System bottlenecks can arise from the use of a ___________________________ bus

      arbitration scheme when a centralized arbiter selects which process gets the bus.

      A). centralized parallel arbitration

      B). distributed arbitration using self-selection

      C). daisy chain arbitration

      D). distributed arbitration using collision detection

26. Under which of the following scenarios can CPU throughput be improved?

      A). Reducing the number of instructions in a program.

      B). Reducing the number of clock cycles per instruction.

      C). Reducing the number of nanoseconds per clock cycle.

      D). All of the above.

27. ___________ are all input devices which allow us to enter data into a computer.

      A). monitors, printers, speakers

      B). keyboards, mice, scanners

      C). keyboards, printers, plotters

      D). printers, mice, touch screens

28. When the normal execution of a program is altered because an event of higher

      priority occurs, the CPU is alerted to such an event through a(n) ________________.

      A). bottleneck

      B). interrupt

      C). latency condition

      D). abend

29. The ____________________________ of a computer specifies the instructions that

      the computer can perform and the format for each instruction.

      A). instruction set architecture

      B). registers and buses

      C). opcodes

      D). clock cycles

30. Interrupts that cannot be suspended but must be processed in order to keep the system

      in a stable condition are called __________________ interrupts.

      A). detectable

      B). forseeable

      C). maskable

      D). nonmaskable

Section B: True or False Questions

      Each of the following questions is either True or False. Place a T (True) if the answer is True on the answer sheet beside the question; otherwise place a F (False) if the answer is False on the answer sheet beside the question.

31. The job of an assembler is to convert assembly language into machine language.

      T                                        F

32. The arithmetic logic unit is responsible for decoding the binary value in an instruction

       register and creating all necessary control signals needed to execute the appropriate

       microoperation.

      T                                       F

33. To support the passing of parameters between programs, a stack data structure is
       used.

      T                                       F

34. A systems architecture that is backward compatible permits programs written on a

      newer, faster processor to run just as fast on a less powerful and older processor.

      T                                        F

35. There are 2³⁰ megabytes in a terabyte.

      T                                        F

36. The decimal (base 10) number 210 is equivalent to 11010010 in binary (base 2) and

      D5 in hexadecimal (base 16).

      T                                        F

37. The hexadecimal number C9D is equivalent to the binary number 110010011101.

      T                                        F

38. A program counter points to the memory address of the instruction that the CPU is

      currently executing.

     T                                        F

39. While statements and if statements are examples of conditional branching

       instructions.

      T                                        F

40. Obtaining the binary equivalent of a decimal (base 10) integer with a negative sign

      requires a bitwise complement of the bits in the positive decimal (base 10) integer

      value of the same magnitude.

      T                                        F

YOUR Firm, Inc. expects to sell 200,000 units next year, generating total sales of

$ 17,000,000. Management predicts that profit will be $ 1,250,000 and the contribution margin will be $ 25 per unit.

1. What is the total expected variable costs?
2. What is next year’s expected fixed costs?
3. Compute the expected margin of safety in both units and sales dollars?

Explain the following : Factors driving adoption of intelligent actions within the IoT

• Lower machine prices

• Improved machine functionality

• Machines “influencing” human actions through behavioral-science rationale

• Deep Learning tools

2. Explain the following : Challenges facing the adoption of intelligent actions within IoT

• Machines’ actions in unpredictable situations

• Information security and privacy

• Machine interoperability

• Mean-reverting human behaviors

Q5. A garage requires 100 tires daily with standard deviation of 30 units. Inventories are reviewed and orders are placed daily. lead time for order is 1 day. The holding cost per day is $0.05. The garage wishes to operate with 0.9987 in-stock probability. How many tires are on order ? on hand ?

An established financial company is about to launch their new banking application. Give 5 reasons why the company should use their own data centre rather than cloud computing.

Air at T₁ = 32°C, p₁ = 1 bar, 50% relative humidity enters an insulated chamber operating at steady state with a mass flow rate of 3 kg/min and mixes with a saturated moist air stream entering at T₂ = 7°C, p₂ = 1 bar. A single mixed stream exits at T₃ = 17°C, p₃ = 1 bar. Neglect kinetic and potential energy effects

A) Determine mass flow rate of the moist air entering at state 2, in kg/min. (Answer was 4.5 kg/min)

B) Determine the relative humidity of the exiting stream. (Answer was 79.6%)

C) Determine the rate of entropy production, in kJ/min.K.

Need part C. Thank you

Given trap spacings among two lobster fishing crews: BT cooperative has spacings = {93, 99, 105, 94, 82, 70, 86} PA cooperative has spacings = {118, 94, 106, 72, 90, 66, 153, 98}

a) Set up null and alternative hypotheses for testing the equality of variances

b) Find the sample variances for the two cooperatives.

c) Compute the test statistic.

d) Find the approximate p-value of the test.

e) Make a conclusion if ? = .01.

[In your opinion], are decision-makers rational (in your answer, give a quick definition of rationality, not the long one]? Give 3 supporting historical examples that align with the quick definition of rationality.

The answer should be about 4 well-written sentences.

Describe the steps which you would take on AWS and the decisions that would need to be made to create, configure and run a Virtual Machine Instance

What is a warranty? What warranties are required by the UCC?