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january 2021
22

Programming Questions and Answers January 22, 2021

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Which of the following is a valid class C IP address for a host a. 193.255.101.18 b. 200.258.243.201 c. 215.12.63.0 d. 225.192.159.23

Consider one communication link from node A to node B. Each data packet over this link needs one timeslots to be transmitted. Let An be the number of packets that arrive at node A during timeslot n. Assume that An n 0, 1, 2, . is an iid sequence with distribution PA 0 35, PA 1 15, PA 2 15. (1) To make the counting of packets easier, assume

Simplify the following Boolean expressions completely into an expression of reduced sum of products (not disjunctive normal form DNF implies every variable must appear in every product, that is not the case here). For each simplification step, explain which Boolean law is applied to achieve that step. For full marks, do not apply multiple laws per

A risk mitigation plan starts with determining the levels and thresholds. The risk mitigation plan for a given risk includes techniques and methods. What those technique and methods are for Select one O a. b d are correct b. Avoid risk O c. Block risk O d. Change risk

Write a program that reads from standard in three things a word to find, a word to replace with, and single line of text to perform the findreplace on. The program should output the three things, as well as, the line after performing the find and replace. For the input cat dog My favorite animal is the cat. The output should be Find Word cat

What are the values of the variables after the following assembler program segment is executed int deer 6, bear 4. panther asm ( mov wildcat sub inc dec cmp jg mov ebx, deer ebx, panther panther bear ebx, bear wildcat deer, ebx

What is SQL??

Given three sets A, B and C, we let A x B x C (a, b, c)a A,b B, c C be the set of all ordered triples (3tuples) whose first element comes from A, whose second element comes from B, and whose third element comes from C. Explain and show the difference between A x B x C and AX (BXC).

Consider the following sequence of instructions executing on a 5stage MIPS pipeline with full hazard detection and forwarding support, with branch resolution in D In what cycles will instructions 3 and 5, respectively, complete (Writeback, even if nothing occurs in W) 0 1 2 3 4 5 6 7 CYCLE 1 LW 1, 1D0C(0) F DE MW 2 LW 2,0(1) F 3 SW 3, 4(2) 4 LW

2. Sketch the decorated parse tree to produce the threeaddress code for the following statement. if (a b) then d b a else d a b

2. Given a one dimensional image f (01 4 9 16 16 16 16 9 4 1 0) (a) Fill in the following table, filtering the image with the given filters, assuming zero padding. 1 1 1 Filter 1 0 2 Median 1 1 1 0 Image 1 49 16 16 16 16 9 4 1 0 (b) Explain what each of the above filters does and why. (c) Is there a relationship between the second and third

Say we have a list of lists nestedlists 1, 2, 3, a, b, c, 30, 1, What would be the resulting list of the following list comprehension sublist0 for sublist in nestedlists if 1 in sublist 1, 30 1,2,3, 30, 1 1, 2, 3, a, b, c, 30, 1, 1, 2, 3

Assume that the Selective RepeatARQ protocol is being used for communication between a source and a destination station. Assume that the transmission rate is R bitssec the number of bits in an information frame is n, and in an acknowledgement is na bits. Assume also that the bit error probability of the channel is p for both the frame and

Write a program that calculates the monthly payment amount and total interest that will be paid on a car loan. Prompt the user to enter the principle amount of the loan, the interest rate of the loan, and the loan duration in months. Then, calculate and display the monthly payment amount and total interest that will be paid on the loan using the

Write a program that has an array of at least 20 integers. It should call a function that uses the linear search algorithm to locate one of the values. The function should keep a count of the number of comparisons it makes until it finds the value. The program then should call a function that uses the binary search algorithm to locate the same

Write a program that checks whether a triangle is perfect. A triangle is perfect if its shortest side length is 3x, its middle side length is 4x and its longest side length is 5x, where x is the same integer. The program should prompt for the side lengths in the order shortest, middle, and longest. It should use the guess and check approach.

Write a program that will ask the user to input a single number N. If the number is nonzero, a one hundred element row vector named SEQ will be filled with the values 0.01 N, 0.02N, 0.99N, N. Note that this must work for both positive and negative values of N. After filling the vector, the program should ask (yes or no, not case sensitive) if this

Write a java program to generate 10 random numbers between 1 and 10. As you generate each number, keep appending it to a string with a comma after each number. In the end give the user a count of each random number in the string and remove the random number with the highest frequency from your string. Note If two or more numbers have the same

The Brinell hardness test is widely used for testing metals and nonmetals of low to medium hardness. In the test, a hardened steel or cemented carbide ball of diameter (D10 mm) is pressed into the surface of a specimen using a load of F1000 kg. The load is then divided into the indentation area to obtain the Brinell Hardness Number (BHN). In

Write three lines of code, one that creates a Random object, a second that assigns a random 3digit integer (ie, 100..999) to int x, and a third that assigns a random double in the range 100..999 to double y. 2) (3 Pts) Write a static method dup2D that duplicates and returns a 2D array of int. You may assume there is at least one row and column and

Consider the following list of integer indexed from 1 to 8 (i.e intList135....., intList838) intList (35, 12, 27, 5, 18, 45, 16, 38) Consider the following pseudo code version of Bubble Sort (n8) for j1 to n1 do for i1 to n1 do if intListi intListi1 swap (intListi, intListi1) What is the position (index) of element 38 after the first pass O a. 2 O

D) int a, b, c, sum, avg a2 b4 c6 sum abc avg a b c3 cout

define Mazda 1 define Ford 2 define Fiat 3 Convert the following defines into an enum define Porshe 4 define Land Rover 5 7. (2 marks) The following 2 styles of main may be used the first one is one that you have been typically been using and he second one tends to be used more for embedded systems. Why is the second one more popular for embedded

a) How many processes are created? b) How many "AA", "BB", "CC" and "DD" are printed? c) Make a logic/process tree. An application with multiple system call fork(). Given: main() { if (fork() && !fork()) fprintf("AA'); else if (!fork() || fork()) fprintf("BB'); else if (fork()) fprintf("CC'); else fprintf("DD'); }

For the following functions f(A, B,C,D) AD BCD ABC f (A, B,C,D) ABC ABD ACD f3(A, B,C,D) ABD AB a) Find the minimumrow Programmable Logic Array (PLA) table. b) Find the reduced Programmable Array Logic (PAL) equations. (15 marks)

Let C be the binary code with generator matrix 1 1 1 0 0 0 0 0 0 1 1 1 Write down a standard array for C. Using your standard array, decode 1 0 1 1 0 0 and 0 0 1 1 1 1 . Do your answers depend on the standard array (recall that there can be more than one choice for a standard array),Let C be the binary code with generator matrix 1 1 1 0 0 0 0 0 0

Let C be a 3ary linear code with paritycheck matrix 1 2 0 1 1 1 1 0 1 2 0 0 1 1 0 Find a generator matrix for C.,Let C be a 3ary linear code with paritycheck matrix 1 2 0 1 1 1 1 0 1 2 0 0 1 1 0 Find a generator matrix for C.

Write a code which creates a tuple named Grades containing the grades of a single student for 5 subjects: (90, 85, 77, 95, 88). Print the maximum and minimum grades from the tuple, and calculate and print the average grade for the student.

1 Based on the engineering problemsolving methodology, write down the detailed 5 steps that are applied for developing a C program to calculate salespersons earnings A large company pays its salesperson on a commission basis. The list of the items sold by salespersons is Item 1 2 3 Value 10 20 30 The salesperson receive 200 per week plus 9 of

Write a program that searches through a maze to find a path from the beginning to the end. The maze will be a twodimensional grid of locations, numbered by row and column. We could draw out a maze like this 0 1 2 3 0 X X X X 1 E X 2 X S A maze is described by 3 things the valid locations (places where its okay to walk, indicated as an X in the

what will the values of b, si, I, and f be when the program is executed public class Preimative Types2 public static void main(String args) byte b 100 short s 10000 int i 100000 long l 1000000 float f 123.4f double d 1.234e2 b (byte) s s (byte) i i (int) l 1 (long) f f (float) d

Write a Java Program to place a pizza ordering program. It creates a pizza ordered to the specifications that the user desires. It walks the user through ordering, giving the user choices, which the program then uses to decide how to make the pizza and how much the cost of the pizza will be. Note: Use dialog boxes for communicating with the user.

Write (and test using DS5) an assembly language program in ARMv8 to find the sum, the largest and the smallest of n nonzero positive integers. Declare data sections to store the n positive values as an array v and a variable to store n. Create a loop to go through the array for finding the sum of the elements of the array, the largest and the

6. Given the following code snippet, are there any kind of errors If so, name the types, where, and how this code can be fixed. Otherwise, what does this code exactly print to the console int a new int 5 5 for (int i0i

Write a program to evaluate a mathematical expression as it is entered by the user. Here, the user will enter alternating numbers and operators, terminating with a .. You are required to keep a running evaluated result for the expression and finally print the output when the user is done. Each type of operation needs to have its own method. The

Predict the output of the following Python statements. Indicate a blank space with a b. If there is no output, simply indicate no output in the space provided. If there is a syntax error, write syntax error. If the code would produce an infinite loop, write infinite loop. An answer left blank is incorrect. 2 points each Assume num1 10 num2 12

Write the canonical form of the following function using minterms: F(a,b,c,d) = a'bc + c'd.

Write a Playground file in SWIFT to create a dictionary for at least 5 products, in which each key is a product name (e.g., Stawberry Icecream) and each value is a tuple including the category and price of the corresponding product (e.g., (Dissert, 3.99)) Declare three functions: lowestPrice function returns name and price of the product that has

T(n) 2T (n4) 1 T(n) 2T (n4) n Solve the following recurrences using the Master Theorem T(n) 27 (n4) n T(n) 27 (n4) n

and no Show that 7 2n 0(n). Show your work and give specific values for C. C2.

Answer the following questions. All running times refer to the worstcase analysis. 1. John came up with an algorithm for some problem that runs in time (n log(n)), and Bill came up with an algorithm for the same problem that runs in time o(n log(n)). Based on this information, which one would you choose Why John tells you that a certain algorithm

Write a program that reads in the text file attached, converts all words to lowercase, and prints out all words in the file that begin with that key letter a, the letter b, and so on. Build a dictionary whose keys are the lowercase letters, and whose values are sets of words which begin with that key letter. After processing the data, print the

Write a program that takes FOUR user inputs IPv4 of machine1 Subnet mask of machine1 IPv4 of machine2 Subnet mask of machine2 Your program should determine whether machine1 and machine2 are in the same subnet. If yes, your program should print Yes these IPs are in the same subnet, and then your program prints the LAST IPv4 address in that subnet.

Create a JavaFX application that displays a menu from which the customers can order from. The menu will show the following five items Pizza Chips Coke Coffee Water 9.99 2.99 2.50 3.99 1.99 Customers can select one or more items from the menu. Create a GUI application that calculates and displays the amount owed by the customer based on the items

Design a contextfree grammar G for one of the following formal languages 1. abi ij 2. abi ij 3. we(ab) the number of a in w is the same as that of b

6. Use a proof by induction to show that the sum 13927... 31 31 (6 marks)

1 Write a Java code that asks the user to enter the integer (x, y) coordinates of two points that form a straight line, reads these coordinates, and calculate the slope (a) and the slopeintercept (b) that form the equation of the straight line as follows y ax b a (y2 Y)(x2X1) b y2 ax2 Then ask the user to enter the integer (XA, YA)

Almost all items that we acquire, depreciate over several years. The yearly depreciation in value D for an item is often computed using the formula D (PS)Y where P is the purchase price in , Y is the number of years, and S is the salvage value in at the end of Y years. Write a Java program, named CCCS300A1Q2, that that prints a Welcome to the

Question: Describe the Structure of a Typical Java Program?

In Creative Commons (CC) ideal attribution, three links are required a link to the authors profile page, a link to the image source and a link to the CC public domain page. the CC license deed. the CC homepage. the CC permission page. the CC wiki page.

1 Write C code to read an integer number and then print O if the number is odd, print e if the number is even. 2 Write C code to read a number and then print its absolute value. 3write C code to read 5 grades and then print PASS if 3 or more grades are 50 or more. Otherwise, print FAIL

ABC University wants to develop a new student grading system that will allow professors to input grades for their students and provide a transparent grading system to students. The university is considering two approaches traditional system analysis and objectoriented analysis. You are require to find out which will be the most appropriate

Board.java BoardFragment.java GameOptions.java columns 3. Define a custom constructor that instantiates the board array 4. Define method newGame to do the following a. Access level modifier public b. Return type void c. Parameter list empty d. Iterate through the 2d array board to initialize each element to the value zero (0) 5. Define method

Write a Java program that prompts the user to enter a number x. The program should print Hello World x times. Sample Run Enter a number 6 Hello World Hello World Hello World Hello World Hello World Hello World

Write a MATLAB function called Temperature which (1) takes two integer inputs of temperature an hour ago and temperature now in degrees Fahrenheit, (2) prints the temperatures in degrees Celsius, and (3) returns the temperature difference : Keep in mind: C = 5/9 (F 32) T = T final T initial

2. Create a form as shown below Haze Indicator Application This application will assess the haze severity for Perak, Malaysia. Please enter the API Safety Level District Gerik Kuala Kangsar Ipoh Tronoh Taiping Calculate Average Level API Level Clear Level Exit X,Requirements 1. Name the frame, labels, textboxes and buttons accordingly. 2. This

After executing the MIPS assembly program below, whats the output printed in the terminal data word space 1 HINT think ascii text main la St, word li t1, 104 li St2, 105 sb St1. word sb St2, word 1 li sve, 4 add Soe, Ste, Szero. syscoll exit 11 Sve, 10 syscall

Write a program that reads 20 characters from the user, your program should concatenate each 10 character into a different string. However, if the user entered M, A, or K, your program should skip these and not concatenate them. use if statement and for loop

1. You are a junior manufacturing engineer at a precision machining facility. The company is looking to reduce production costs while maintaining highquality standards. Explain how you can use ComputerAided Design and Manufacturing (CADCAM) to optimize a part of the manufacturing process to achieve these cost saving goals. i. Identify FIVE (5)

Write the implementation for below UML and apply question (a, b, and c) a.create object for Book. b.apply overloading for method name to print auther last name with first name c.apply overriding for method info to print authers info with book title Author Fname String PDate String Age integer Info () void Name () void Hint Book title String

Write a method validPass that takes a string that is supposed to represent a password and returns a boolean that indicates if the password is a valid password according to the following rules: Passwords must be a minimum of 10 characters in length. A password must contain only letters and numbers the following special characters &-%^@_ A

Use MATLAB to determine the following integrals. J tanh x dx. (See section 1.9.1 of the MATLAB Manual). (a) Determine (b) Determine 2 exp(6x) da. Use the pretty command to make your answer more readable. (Use help pretty for more information.) (c) Enter int (sqrt (log(x41))), and explain the output. (d) Computer programs can do many calculations

Look at the following equation y(t) (t 10. 120 20 3t 0 Write a C program using If statement that asks the user to enter a real numbert and calculates and prints y.

Consider 6bits Successive Approximation. If Vref4.5V and Vin 2.35V, 3 Maks then use the iterative approach and find the binary equivalent of the input. Show your work. Direct answer will yield zero mark V SH Logic D D D VOR DAC Q4. Consider the 4bit DAC circuit. 3 Maks a) Find and is and is, if R 5000 2.0 b) Find Vif Rf 2R 10 Show your work.

Design a 4bit upcounter with a CE (count enable) and load control inputs and an additional output upper that outputs a 1 whenever the counter is within the upper half of the counters range, 8 to 15, otherwise 0. Design the counter using MUXes and gates and D flip flops without any external control signal (e.g. reset or set). Model the circuit in

You are given a set of n numbers, with values in the range from 0 to 32768. The set contains no duplicate values. The set of numbers needs to be sorted. Answer the following a. What is the maximum input size n for this problem b. Write an efficient algorithm to sort the set of numbers. c. Your algorithm needs to be fast, but you have to keep low

1. Construct business process about project management software 2. Porter's Value Chain activity pertaining to project management software. 3. What is project management software?

The data X,...,xn is drawn from an exponential distribution exp(). Find the maximum likelihood estimate for 1. Pick ONE option 1(x...Xn) (x...Xn) (x...xn)n n(x...xn)

1. State why Rices Theorem cannot be applied to the following sets (a) ATM Ma TM and w a string such that M(w) acc (b) L M a TM such that M decides HaltTM (c) L ( M a TM such that Ms first two tape cells are read only once

3. Give the inorder, postorder, and preorder traversals of the given binary tree. D B H A (E F I K (G) (P N M

Write a function verifylengths (words, min, max), where words is a list of strings, and min and max are two positive integers (where min is less than or equal to max). verifylengths returns True if all of the strings in words have a length between min and max (both inclusive). Otherwise, return False. An empty list should return False. For example

Create a program that reads the users name and year of birth from input(keyboard), then print out their name and age in Lustrum(find out the meaning). Sample run 1: Enter your name: Hausiku Enter your year of birth: 1999 Output: Hello Hausiku, you have lived for 4 lustrum(lustra) Sample run 2: Enter your name: Johanna Enter your year of birth:

Consider this structure definition typedef struct movie char title uint8t rating uint16t releaseyear Movie What is the minimum possible value of sizeof(Movie) if the operating system uses 64bit memory addresses
$Consider this structure definition: typedef struct movie { char *title; uint8_t rating; uint16_t$

Consider again the structure definition typedef struct dimensions float width float height float depth Dimensions Dimensions d Assuming that variable d has been initialized, write an expression that accesses the height member of d. (do no use any spaces in your answer do not end the expression with a semicolon)

For the following sets of tasks, determine whether they are schedulable with the 1) RMS and 2) EDF scheduling algorithms. If yes, explain why. If not, explain what modifications can be made so that they can be schedulable. 1) T1 (8, 15), T2 (12, 20) 2) T1 (8, 16), T2 (10, 20) 3) T1 (8, 20), T2 (10, 25)

Write a C or C program to simulate the following contiguous memory allocation techniques a) Worstfit b) Bestfit c) Firstfit. For each technique submit the code and a screenshot of the output given the input below. All techniques can be implemented in one programm. DESCRIPTION One of the simplest methods for memory allocation is to divide memory

Given the following ERD. The correct mapping of the relationship R k1 e1 k2 O O kl k2 El (a) or (b) el E1 e2 E2 k2 k2 E1E2 k2 k1 R E2 e2

Write a function starchanger (word), where word is a string. starchanger returns a new string where every other character in word (starting with the second character) has been replaced by a certain number of stars (). The number of stars replacing a character in word should be equal to the index of the character you are replacing. i.e. the

a. Generate the Schema diagram from the entity sets. b. Write SQL to find out the car model that is licensed in 2019. Write SQL to find out the person names who got in an accident on Highway 101. Act Go t,Person driver id name 1 2 2l3 3 Accident reportnumber 101 102 103 Participated John Smith Alice Johnson Bob Brown 101 102 103 address 123 Main

Draw a deterministic finite state machine for the input alphabet A where A = {1, 2, 3, 4, 5} that recognises exactly all strings that include the 2 letter string 42 exactly once. For example, the machine will accept the string 54214 but reject the strings 432 and 421421.

If two lines are connected, and both were of stdlogic signal, one line has a value of X, and the other has a value of Z what should be the resulted value 1.U (Uninitialized) 2.X (Unknown) 3.1 4. None 5.Z (High Impedance) 06.0

Write a statement that defines a bitvector constant C1 equal to 10001100. O 1. signal C1 bitvector(7 downto 0) 10001100 O 2. constant C1 bitvector(8 downto 0)10001100 O 3. constant C1 bitvector 10001100 O 4. None O 5. signal C1 bitvector 10001100 O 6. constant C1 bitvector(7 downto 0)10001100 07. signal C1 bitvector(8 downto 0)10001100

The next VHDL concurrent statements represent a tristate bus system that controls one source passage to the Bus. What is the right condition that makes the next statements work correctly Bus

The following CFG in Chomsky normal form generates strings of balanced parentheses V V2 V2 V4V3 V4V5 V2 V2V2 V4V3 V4V5 V3 VV5 V4 ( V5 ) 1. Recall that CYK running on a grammar with r variables and an input string w of length n populates an nxn x r array such that Pl, s, i is true if and only if variable R derives w... Ws1, the input

Consider the language over a,b,c that is the concatenation of arbitrary palindromes of length at least 3 and occurrences of the substring abc L xx...xkk 0, x abc or x x, x 3 for i 1,..., k . a) Give a CFG for L. b) Give a PDA for L. Although the generic CFGPDA conversion will give you a correct answer, for full credit you should design a

Consider the following language over a,b,c L anncnn20. The following PDA P does not recognize L X 90 a, a q1 E, E E b, a E q2 q3 a) What is L(P) instead Give a precise description. Hint It accepts every string in L but also some strings not in L. b) Use the CFL pumping lemma to prove that no PDA recognizes L. 94 95

1. Consider the following algorithm Algorithm rec Fun(x, y, n) ifn 1 else if n1 return Null return x y else return (x y) rec Fun(x, y, n1) a. What is the base condition b. How do the recursive calls reach the base condition c. Show a complete trace of the following algorithm and count the number of steps you perform. a. Using the input x4 and

b) Create a class named triangle. It takes cartesian coordinates for 3 corners of a triangle. The constructor calls a set function that accepts three sets of coordinates and verifies that each of these is in the first quadrant with no single x or ycoordinate larger than 30. Use the function distance() in part (a) to find the length of each side

Write a complete C program that uses a counted while loop to calculate the sum of the even integers between 1 and n. Assume n is positive. Algorithm DECLARATION OF VARIABLES cout Enter n INPUT n INITIALIZATION OF VARIABLES WHILE count IS LESS THAN OR EQUAL TO n check if count is even ADD count TO sum STORING RESULT IN sum INCREMENT count 1

The table below shows the activity sequencing of a software development project a. Draw an activityonnode (AON) network diagram for this project. (8) b. How long is the critical path (4) c. Suppose the project needs to be completed earlier than planned, what activity should be shortened and why (2) Activity A B C D E F G H Description Concept

Use induction to prove that, for n 1 2 1 2 F 2 We recommend using Preview My Answer before clicking Submit. Proof We will prove this by induction on n. Basis Let n i1 a f i1 Then k1 1 2 9 2221 2 2 Induction Step Consider k1 1 2 j Induction Hypothesis Assume 3k such that Vn with 1 n k, then p 21 8 222414 b 1 2 2 ,b 2(21) 29 21 2 1 2 2

Design a sequential circuit using JK flipflop that detects prime numbers from the input lines. If the input is x0, y0, the state transition is 00, 11, 10, 01, then back again. If the input is x0, y1, the state transition is 00, the following inverts the present state, then back again. If x1, y0, the state transition is 00,01,11,10 then back again.

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