Databases Questions and Answers January 11, 2022

What is a concept where the derived class acquires the attributes of its base class? Encapsulation Inheritance Abstraction Pymorphism

Question 1 2 of 2 0 : Select the best answer for the question. 1 2 . What occurs first when a search engine operates? A . Information in databases is matched against searches. B . Information on websites is organized in databases. C . Pages are sorted, raniked, and displayed to the user by relevance. D . Websites are searched, and keywords are

what are the three key characteristics of foundation models? a . Thry are trained on labeled data, they use suprevised learning and they are trained on a specific task b . They are trained on unlabeled data, they use self - supervised learning, and they are trained on a broad range of tasks c . They are trained on a small amount of data, they use

When you use outside sources in your writing, you must include citation information in two places. According to Modern Language Association ( MLA ) style, it should appear within the text itself and where else? Group of answer choices In footnotes at the bottom of the page In a Table of Contents page at the beginning of the essay On a Works Cited

1.) Which of the following is a connectionless protocol? A.) IP B.)TCP C.)Both IP and TCP D.) Neither IP nor TCP 2.) Ethernet syntax is displayed 32 bits on a line. A.)True B.)False 3.) Network standards ________. A.)decrease equipment prices B.)prevent the growth of new features C.)both decrease equipment prices and prevent the growth of new

In function implementation of n variables using MUX, _ _ _ _ _ variables will go in selection lines.

4 - write a program both in python and C + + for the classes that we can see below in the figure, use the objects that shown in the figure Car class Model, Price, Color, Build year

python dictionaries xan also include list which can he accessed using an index

The q , function displays the highest value in a range. B . SUM D . AVERAGE

You are to write a Java program name MyLinkedList.java that create/build the LinkedList data Structure that exist in the java library. The class must be written to accept any type of Objects. The following must be implemented i.e. YOU must write the code ( do not import them from the Java Library ): One default constructor that will create an

Use R to confirm your calculations in problem 2 ( the hotel data ) . Show the code you used and the subsequent output. The data can be loaded into a data frame using the following commands: Hotels < - data.frame ( Price = c ( 1 7 5 , 1 8 0 , 1 2 0 , 1 5 0 , 1 2 0 , 1 2 5 , 5 0 , 5 0 , 4 9 , 4 5 , 3 6 , 4 5 , 5 0 , 5 0 , 4 0 ) , Type = c ( rep ( '

Your company has approximately 1 0 0 0 laptop users where the laptops are company provided. Users often hold sensitive data on their laptops. In order to ensure data protection, your company ( wisely ) decides to implement full - disk encryption on each laptop. All laptops come with at least 5 0 0 GB hard disks. Which type of cipher would your

Need help with writing python code (v 2.7.x) to traverse through a folder structure, read all the text files (emails) and extract From and To email addresses and write the output to a CSV file. email format Folder structure Mailbox Name1 text 1 text 2 Name 2 text 3 text 4 text 5 Message-ID: Date: Fri, 7 Dec 2001 10:06:42 -0800 (PST) From:

Question 4 Reinforcement Learning [ 8 Marks ] Explain how Q - learning overcomes the challenge of having to act greedily with respect to a value function. Describe what is meant by the exploration - exploitation dilemma. Write down the SARSA update rule. How does this differ from the Q - learning update rule? What is the main difference between

C++ Part 1 Method 1 - Linear 1-1. Create one array arr 1 of size 1000. Populate it with random numbers in the range from 0 to 2000. 1-2. Randomly generate 5 numbers in the range from 0 to 2000 and search each number in the array. (Roughly half of the targets can be found.) 1-3. Calculate the number of key comparison for each search. 1-4. Display a

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Write a program that randomly generates a math question using integers from 1 to 5 0 inclusive. This question must generate 2 integers to be used in the equation and one of the following 4 operators: + , - , l , * * . After printing the randomly generated math question, the program collects the user's input and reports if the entered answer is

In TCP Round Trip Time ( RTT ) estimation, suppose that the five measured SampleRTT values are 1 0 6 ms , 1 2 0 ms , 1 4 0 ms , 9 0 ms , and 1 1 5 ms: [ 2 5 % with 5 % for each RTT sample ] ( i ) Compute the EstimatedRTT after each of these SampleRTT values is obtained, using a value of \ alpha = 0 . 1 2 5 and assuming that the value of

Prepare and configure the following network using Packet Tracer, Save the File with your ID-name as file name. ed out of question PC. GO/ GO/ IT Dept ACT Engg Dept IPV4 ADDRESS IPV6 ADDRESS Addressing Table: DEVICE INTERFACE G0/0 ACT G0/1 GATEWAY 172.16.1.1/25 172.16.1.129/26 local-Link 2001:088:1:1:1/64 2001:088:1:2-1/64 FE80:1 2001:088:1:1:2/64

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&Click Submit to complete this assessment Question 19 of 19 Question 19 15 points Save Answer In the Figure below suppose that A, B and C have mutual agreements to forward traffic for each other. Suppose that C would like to have the trafic destined to Y to come from B only, and the traffic destined to Y to come from either A or B a Which routing

Programs Please create a program in PowerShell that creates an until loop to: Ask input from the user Allow input until a sentinel value is reached Count the number of times the loop went thru Print out all the user input onto new lines Then print the loop number Please create a program in PowerShell that creates a while loop to: Ask input from

(b) How often does an ex-con return to jail? Gn uiall 16. A store sells a special item whose daily demand can be described by the following pdf: Daily demand. D 0 1 2 3 PID 1 3 4 .2 The store, using daily review, is comparing two ordering policies: (1) Order up to 3 units if the stock level is less than 2; else do not order. (2) Order 3 units if

Respond to a classmate's initial post by arguing and justifying that your DBMS is better than what they picked, in the context of the project type identified by the classmate. Look at the specific scenarios, benefits, and tools mentioned and explain why the DBMS you picked performs better. Note that there is no right or wrong answer in this

please do it in matlab Homework: Given are a 5 x 6 matrix A, a 3 x 6 matrix B, and a 9-element vector v. [2 5 8 11 14 177 5 10 15 20 25 30 3 6 9 12 15 18 B = 30 35 40 45 50 55 A = 4 7 10 13 16 19 55 60 65 70 75 80 5 8 11 14 17 20 V = L6 9 12 15 18 21 [99 98 97 96 95 94 93 92 91] Create the three arrays in the Command Window, and then, by writing

8. Solve the following recurrences with master method if applicable. Base case is assumed to be T(1)=1 for all RRs. (i) T(n)= 3T(n/2)+ n1.4. (ii) T(n)= 4T(n/2)+ n logn. (iii) T(n)= 6T(n/2)+ n

Add a 2 1 4 pt Red, Accent 3 , Darker 5 0 % ( last option, column 7 of the Theme Colors gallery ) outline to the arrow shape on Slide 3 .

Established in 2 0 0 8 , the Acme Group is a forward - looking startup focused on building products that are needed for the digitally connected world. The organization prides itself on providing the very best products, customer experience, and vibrant culture. Although the organization was started by college roommates, it now has 3 6 8 employees

4. Write a function called crim, mean that computes the trimmed mean of a data vector. A trimmed mean is a mean computed after a certain number of observations are removed from both the low and high ends of the sorted data. Typically, the same number of observations are removed from both ends. For example, suppose we want the trimmed mean of the

PLEASE ANSWER THE QUESTION AS SOON AS POSSIBLE... I NEED EXACT C++ CODE.. WITH THE FOLLOWING OUTPUTS.. PLEASE ATTACH SCREENSHOT OF OUTPUT... Write a C++ program for the following student result processing system: a. Class 'Student' i. Data members of class 'Student': - roll number, - std_name, - subject1_mark, - subject2_mark, - subject3_mark ii.

In the context of IT investments, what does scalability refer to ? a . The ability to reduce size only b . The capacity to increase or decrease resources based on needs c . A fixed infrastructure capacity d . Decreased system performance over time

Simplifying your images makes it easier for the viewer to determine what the subject of the image is . True False

2. (10) Let Q be a nonempty queue containing n elements of type T and S be an empty stack that can contain n elements of type T. Using only queue and stack ADT operations as shown in class and a single variable X of type T write an efficient algorithm to reverse the elements of queue Q. Explain the asymptotic worst-case running time of your

Which of the following is NOT a physical measure to protect trade secrets ? Question content area bottom Part 1 A . Maintaining logbooks for visitors B . Restricting access C . Maintaining logbooks for access to sensitive material D . Labeling documents E . Maintaining low - cost overall security measures

I need the answer as soon as possible classification classification number classification name 1 food 2 food 3 raw material Products product number product name classification number 11 tires 2 22 cheesy 1 33 pills 1 44 gas 3 use microsoft access 1.Create a database in the name of food products 2. Check the above table with the identification of

Windows 1 0 uses software known as _ _ _ _ _ to ensure that devices work consistently. Group of answer choices optical drives applications programs device driversWindows 1 0 uses software known as _ _ _ _ _ to ensure that devices work consistently. Group of answer choices optical drives applications programs device drivers

Which location in the default layout configuration of Replit contains the output sandbox?

This is a Question regarding Java Programming Which one of the following statements is true? You do not always need to create a constructor for a class. The name of a class attribute must contains letters only. The main method is the constructor of the default class in a Java program. An initial value must be provided for a class attribute

( a ) Prove the logic expressions with Boolean algebra law AND RULES STEP BY STEP PLEASE

Type 1 . 0 e - 4 as a floating - point literal but not using scientific notation, with a single digit before and four digits after the decimal point.

Explain to me the MIMO 2 X 2 and 4 x 4 systems in detail using MATLAB code and create an example simulation of the communication network. I want you to create separate simulations for 2 x 2 and 4 X 4 . Then create the resulting graph and I want you to interpret this graph. Explain in detail. Massive MIMO two transmitters and two receivers, 2 x 2

By using Matlab 1. The Taylor's series expansion of cos(x) is 4 cos(x)-1-2, +?--+-..DX 2n (2n)! where x is in radians. Write a user-defined function that determines cos(x) using Taylor's series expansion. For function name and arguments use yecosTaylor(x), where the input argument x is the angle in degrees and the output argument y is the value

Which IEEE subcommittee sets the standards for Wireless LAN networks? Multiple Choice 8 0 2 . 2 8 0 2 . 3 8 0 2 . 5 8 0 2 . 1 1

Which of the following statements about true? are collections of methods that interact with data, rather than containing the data itself When building an API, engineers always have access to the data they want APIS are restricted to communicating with the data layer and cannot connect to other APIs . APIs use CSS to query databases to retrieve

a . what is the formula for the maximum value representable by an n - bit unsigned binary? b . what is the maximum value expressible by a 1 1 - bit unsigned binary? c . what is the value range ( min and max ) of an unsigned 5 - digit hexadecimal? d . could a 4 - digit hex represent more / less / equal values than a 1 6 - bit binary?

True or False? Server computers originally requit own chassis, disk, power supply, and fan. Servers consumed considerable power, took up considerable space, and generaled considerabte heat within the datar center: True False

write Junit tests, please. using JUnit 4 Instructions: Please review the requirements given below carefully and complete your work. You should compress all source files (including main to test your work) into a zip file and submit it through Canvas. The grading scheme is provided on Canvas. You are free to use any looping construct of your choice

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Question1: Determine the real roots for the following equation f(x) = -14 - 19x + 20x 2- 3.15x 3 a) Graphically using Matlab b) Using Bisection method to determine the root between - 1 and 0, and calculate the relative approximate error for each iteration. Iterate until to ea

A user issues a ping 198.133.219.8 command and receives a response that includes a code of o What does this code represent? How can ping command be used to test the internal configuration of IPv4 or IPv6 on the local host? (1M+1.5 M) 6 7 . A II! III c? LL

You are in the process of buying a new car for $23,299. You have 2 options : f. pay for it over 1 year at 4% interest . g. Pay for it over 15 months at the lower rate of 3.2% interest. Write a program that calculates the interest over any time eriod at any rate for any principle. There is a common and standard formula for calculating these amounts

explain the software of grind computing

II. HTML text formatting exercises a. Print the squares of the numbers 1 - 5. Each number should be on a separate line, next to it the number 2 superscripted, an equal sign and the result b. Print two paragraphs that are both indented using the command C. Print two lists with any information you want. One list should be an ordered list, the other

5. Here is a generalized version of the selection problem, called multiple seleconLeA...n] be an array of n numbers. Given m integers k, k2, ..../km, with 1 s ki

What best describes the reason why private keys are considered secure against brute force attacks? The huge number of possible combinations makes guessing impractical The blockchain automatically detects brute force attacks and blocks access Private keys are secret and not shared Brute force is only used for public keysWhat best describes the

According to the data-sheet of M74HCOO IC (quad 2- inputs NAND gate),ICC=50mA, tpLH=7ns, tpHL=15ns, VOH=5.9, VOL=0.1, VIH=4.2,VIL=1.8 single NOR gate. 2. The maximum average propagation delay of a single gate. 3. Speed power product 4. The HIGH-state noise margin. 5. The LOW-state noise margin. Maximum file size: 100MB, maximum number of files: 1

Chapter 6 Exercise 2 (5 points) Write a method called evenNumbers that accepts a Scanner reading input from a file with a series of integers, and report various statistics about the integers to the console. Report the total number of numbers, the sum of the numbers, the count of even numbers and the percent of even numbers. For example, if the

The time complexity for the algorithm using the dynamic programming approach is _ _ _ _ _ _ _ _ . Question 1 options: O ( 2 ^ n ) O ( logn ) O ( n ) O ( n ^ 2 )

1. (10 points) Sets: Write a formal description of the set containing the string aba. 2. (10 points) Sequences and Tuples: What is the power set of B={x,y} which is logically equivalent to the Boolean expression below: (PQ) 4. (15 points) Relations: Give a relation that is Symmetric and Transitive, but not Reflexive. 5. (15 points) Graphs: Is the

Im working on a django app, where i can create silos and their capacities e . g Wheat - 5 0 t . . The silos contain a unique grain _ type say wheat. A given grain type can exist in 1 or more silos ( e . g 3 silos of 5 0 t containing wheat ) . during brewing, i draw grain from the silos for example if i want to use 1 0 t of wheat, i just update

Please answer, Will leave a good rating! 4. (12 points) Given the following regular expression over the alphabet {a,b}, (ba)(a+b) to transform it to a regular grammar, we first transform it to an NFA as the one shown below. Instead of converting this NFA to a regular grammar directly, we convert it to a DFA first and then convert the DFA to a

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Do it yourself: Translate the following micro-programs to micro-instructions cADOR 2 , bit -used MAR:= PC;RD MAR:-PC; MBR:-AC; WR IR:= MBR olling data ofFig. 4- The microincwtion layout for c TIR: IR; GOTO 25 C: A + B; IF Z GOTO 65 TIR := LSHIFT(IR + IR); IF N GOTO 0 AC :-BAND(AC, AMASK) Do it yourself: Translate the following micro-programs to

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Problem 4: Consider the 2D motion of a rocket moving around the Earth. Consider Earth as being stationary and the attractive force it induces on the rocket is directed towards the center of thoe Earth and has a magnitude of mg( ) In the equation: . r is the current distance of the rocket from the center of the Earth RE 6371 km is the radius of the

1. Which of the following commands saves a file in Vi and exits from the editor? Select one: a. :!exit b. :wq c. :e d. :!save 2. What is the first process that the Linux kernel runs when it boots on most Linux systems? Select one: a. init b. root c. zombie d. dmesg 3. You want to install Linux on a BIOS-based computer that already boots several

1 : 1 5 : 3 0 Question 7 6 of 1 0 0 Neal has created a fake website that looks very similar to a legitimate site in order to collect passwords and other data from users; he will use this information to hack into the legitimate site's system. What Neal is doing is referred to as: A . "phalse phabrication." B . phaking . " C . "pharming." D .

Please do #2 the answer to #1 are posted with this as well. 1. Given the following NFA over the alphabet {a, b}, --mpo to transform it to a DFA, first construct A-closures of the states of the NFA. Fill out the blanks for state 0, state 1, state 4 and 0 below. (2 points) {0,1} 1} A(0) = A(2) = {2,3} A(4) = A(1) = A(3) = {3} A(O)= {4,3} Next, to

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Consider a system which is using a multilevel feedback queue CPU scheduling algorithm with three queues, numbered as Q 1 , Q 2 , and Q 3 . The scheduler first executes processes in Q 1 , which is given a time quantum of 8 ms . If a process does not finish within this time, it is moved to the tail of the Q 2 . The scheduler executes processes in Q

In the game of Tetris there are a variety of ways to keep track of the piece that is currently falling and the pieces that already fell. One simple approach is to use two 2D lists. One list stores the falling piece, and one stores the blocks on the ground. Each list is 10 x 16 and has either a 0 or 1 in it, where 0 is an empty spot and 1 is a spot

Need help with this MIPS problem. Please comment all code for better understanding Programming Problem Write a program in MIPS assembly for use in the SPIM simulator. You will implement a "smart" bubble sort in accordance with the following pseudocode: Consider an unsorted array X with n elements Scan X[0], X[1], X[n-1], comparing adjacent

In a class called RotateEncryption, implement(override) the method getEncryptedLine. This method will shift over all letters by a key. Implement the constructor that accepts a key from the user. *Note: please use StringBuilder!* //Given: import java.io.File; import java.io.FileNotFoundException; import java.util.Scanner; public class Encryption {

( This is a project Please ans it bearing this in mind ) Someone living in an apartment decides to create a cozy and well - organized bookshelf in their living room. This person is an avid reader with an extensive book collection and wants to sort and arrange their books efficiently. They decide to use a multi - threaded C program with semaphores,

a. Find the adjacency matrix of the graph G = (V, E) where V = {a, b, c, d, e} and E = {ab, ae ba, bc, ca, ce, dc, da,ek,ec, ed}. b. Give the adjacency list and a drawing of the graph G = ([5], E) whose adjacency matrix is: 0 1 0 0 1 1 0 1 C 1 0 0 0 1 0 1 0 1 0 0 0 1 0 1

2. A software quality engineer wants to develop a regression model for predicting the number of faults in program (y). S/He decided that three software complexity metrics are potentially useful as indepen- dent variables, namely program size in lines of code in program (xi), program control flow measured in terms of the number of branches (z2) and

Which jsoud of the basic functions used in encryption algorithms? 1 . decoding 2 . encoding 3 transposition 4 . transportation 4

The code should be in Java programming. Do not copy someone else's answer or I will complain about that. Thanks. Implement a multi-threaded HTTP server that returns a document determined by the requested URI. Your server should be capable of providing concurrency via multi-threading. Your server program should take single argument which specifies

Please use Matlab to solve the following problem. Please show all necessary steps. Thanks! Consider the random process Xn-cos(02+6) where is a uniform random variable between (-, ). Draw one plot that contains 100 different realizations of Xn versus n (all in one plot). Use a dot to represent every (n, Xn) pair in of Xn versus n (an one plot). Use

What does (Hospital information system)mean? What is the main component and methods and genral application of hospital information system ? Please answer with details will be appreciated

What is the value of m after the following code fragment is executed? a = 2 b m if (a > b) then if (a > c) then m = 1 else end If else if (c not= 0) then 4 else end if end if

5 . Which is one of the basic functions used in encryption algorithms? substitution 2 . subtraction 3 . subway 4 . subroutine

What is triple encryption? 1 . encrypt - encrypt encry crypt by by sing some key encrypt - > e 3 . encrypt encrypt encrypt by using different decrypt Vey encrypt by using same bey 4 . Encrypt decrypt encrypt by using different keys

make it so that the code using plait language in drracket passes all tests # | Problem 3 return an association list from a list of symbols and a list of numbers define a type to allow for the output of a list of associations ? _ t is to be replaced with your appropriately named type # ( define - type . . . ) ( define ( make - assoc [ names : (

IN JAVA!! 2. Create a class that has a generic ArrayList instance variable. a. The class must contain a generic insertion sort function that modifies the ArrayList i. You must implement the algorithm. Do not use built-in sorts b. The class must contain a generic binary search function that searches the sorted ArrayList. i. You must implement the

128.107.10.1/16 (1M) A. Analyse the address as public or private : B. Identify the type of address: (2M) Type of Address (network, host, multicast, or broadcast address) 239.192.1.100/14 172.18.128.48/28 C. Consider a Class C Network 192.16.12.0/27, (1M) i. What is the subnet address for the last subnet? ii. What is the broadcast address for the

1) Write a code (with the filename "Q1.py") that will find and count 4-digit (from 1,000 to 10,000) Disarium numbers. (30p) Hint: A number will be called DISARIUM if sum of its digits powered with their respective position is equal to the original number. abc which is a 3-digit number would be Disarium if abc = al + b2 + c3 abcd which is a 4-digit

Write a program that will read several abbreviations given as std::string values until the value of "END" is given. After reading each abbreviation, the program will check if the same abbreviation already exists in a data base. If not, it will add this new abbreviation to the correct row of the data base. The abbreviation data base will be

A portable operating system is one that can be ported from one system architecture to another without any modification. Explain why it is infeasible to build an operating system that is completely portable. Describe two high - level layers that you will have in designing an operating system that is highly portable.

Please include all steps and explanation, thank you

User Prompt/ QUESTION TO BE ANSWERED I need a function called decode(message_file) that can read in an encoded message from a .txt file and return the decoded version as a string. Here's an example of what the message_file .txt file will look like: 3 love 6 computers 2 dogs 4 cats 1 I 5 you As you can see, each word is associated with a number.

1.Execute the failowing fastruction $C150 to $159. to the following instructions by hand, then find the final contents of X, Y and memory local Moving a Block of Memory from One Location to Another Algorithm Description A this program, we want to move the contents of block 1 ($C100 to SC101) to block 2 (SC150 to This means that the contents of

Arrays in C + + are fixed in size where elements are stored sequentially in memory. Group of answer choices True False

C++ Function TASKS 1. Write a function named asci_to_char which accept asci value as an integer argument and return 2. its equivalent character to the main. 3. Write a function which accept an integer as an argument return its factorial. 4. Write a function named is_leapyear which year as an ineger argument and find if the year is leap year or

Question 1: Consider the state space graph below. For each of the following search strategies, work out the path returned by the search on the graph shown below. Draw the search tree and the returned path. In all cases, assume ties resolve in such a way that states with earlier alphabetical order are expanded first. Note: "S" is the initial state

Outline the machine language instruction format ( i . e . , describe how the machine language instruction is divided into fields and state what each field is used for ) , and give the decimal and binary values of each field, for each instruction in the following block of code. loop: lw to , 1 2 ( t 1 ) addi t 0 , t 0 , 1 5 sub s 0 , s 1 , s 2 bne

Need help with this assignment to create an app in the console for an airplane to let customers choose their preferred seating. Any help appreciated, thanks Assignment: A small airline has just purchased a computer for its new automated reservations system. Youve been asked to develop the new system. You are to write an application to assign seats

Consider the following relational schema, where the primary keys are underlined and foreign keys are marked with #: Student (studentID, sname, major, level, #deptid) Class (classNum, cname, Time, room, #teacherID) Enrolled (#studentID, #classNum) Teacher (teacherID, fname, #deptid) Write the SQL Statement for the following query: retrieve cname

create a user account using root@wrk 1

Visual Basic Write a program that can trace a Mclaurin serie for the formula: y=1/(1-x) The serie is: y= 1+x+x2+x3+x4+x5+... - the term "0" of the serie is: 1 - the term "1" of the serie is: x1 - the term "2" of the serie is: x2 and on and on.. The programme traces an horizantal line at y=1 and traces the "exact" function y=1/(1-x) and the serie

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( b ) Compare the following scarch algorithm based on performance measure with justificat complete, optimal, time complexity and space complexity ( i ) BFS and ( ii ) DFS

I need explanation for this drawing for database

PLEASE EXPLAIN HOW DOES THE DELETE FUNCTON WORKS N THS CODE (USE MOCROSOFT WORD AND DRAW THE MAP OF THE POTERS WHCH PONTS TO WHCH ) /* Fig. 12.3: fig12_03.c Operating and maintaining a list */ #include #include /* self-referential structure */ struct listNode { char data; /* each listNode contains a character */ struct listNode *nextPtr; /*

Probleml: Write a code to operates a Permanent Magnet DC Motor (PMDC Motor) in four different speed using four push buttons connected on RB4 to RB7 pins. (You must use PORTB on change interrupt). *Attach .asm file do not send picture to code. Problem2: Write a code using PWM technique to get a speed profile for soft start/stop motors such as

Create a subroutine (with name "SUM) that sum values in registers B,C, D, E. B = 20H C = 40H D=60H E = 60H You can use any memory address to store the result

What are the exceptions to obtaining a search warrant ( list and explain a scenario that would contain that exception ) Th