The three events occur when a DNS request is processed is that
A local DNS server sends the IP address back to the requesting device for access. A local DNS server checks to see if it knows the IP address for the site requested.Top-level domain DNS servers look up the site and return the IP address.What are the types of DNS queries?There are known to be 3 types of DNS queries which are:
Recursive iterativenon-recursive.Therefore, The three events occur when a DNS request is processed is that
A local DNS server sends the IP address back to the requesting device for access. A local DNS server checks to see if it knows the IP address for the site requested.Top-level domain DNS servers look up the site and return the IP address.Learn more about DNS from
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You have to write a program that will read a number followed by a series of bit operations from a file and perform the given operations sequentially on the number.
The operations are as follows:
set(x, n, v) sets the nth bit of the number x to v
comp(x, n) sets the value of the nth bit of x to its complement (1 if 0 and 0 otherwise)
get(x, n) returns the value of the nth bit of the number x
The least significant bit (LSB) is considered to be index 0.
Input format: Your program will take the file name as input. The first line in the file provides the value of the number x to be manipulated. This number should be considered an unsigned short. The following lines will contain the operations to manipulate the number. To simplify parsing, the format of the operations will always be the command name followed by 2 numbers, separated by tabs. For the set(x, n, v) command, the value of the second input number (v) will always be either 0 or 1. For the comp(x, n) and get(x, n) commands the value of the second input number will always be 0 and can be ignored. Note that the changes to x are cumulative, rather than each instruction operating independently on the original x.
Output format: Your output for comp and set commands will be the resulting value of the number x after each operation, each on a new line. For get commands, the output should be the requested bit’s value.
Example Execution:
For example, a sample input file "file1.txt" contains the following (except the annotation comments):
5 ---------------------------------# x = 5
get 0 0 -------------------------# get(x, 0), ignoring second value (0)
comp 0 0 ----------------------# comp(x, 0), ignoring second value (0)
set 1 1 --------------------------# set(x, 1, 1)
The result of the sample run is:
$ ./first file1.txt
1
4
6
The program what will read a number followed by a series of bit operations from file and perform the given operations sequentially on the number is given below.
What is an operation in computer science?An operation, in mathematics and computer programming, is an action that is carried out to accomplish a given task.
There are five basic types of computer operations:
Inputting, processing, outputting, storing, and controlling.What is the requested program above?#include <stdio.h>
#include <fcntl.h>
int main(int argc, char *argv[])
{
int number, n, v, temp;
char line[25], fun[10];
FILE *f = fopen(argv[1], "r");
fgets(line, 24, f);
sscanf(line, "%d", &number); //reading the number
while( fgets(line, 24, f) )
{
sscanf(line, "%s %d %d", fun, &n, &v); //reading the commands
switch(fun[0]) //checking which command to run
{
case 'g': temp = 1;
temp = temp<<n; //shifting for getting that bit
printf("%d\n",(number&temp)&&1);
break;
case 's': temp = 1;
temp = temp<<n; //shifting for setting that bit
if(!v)
{
temp = ~temp;
number = number & temp;
}
else
{
number = number | temp;
}
printf("%d\n",number);
break;
case 'c': temp = 1;
temp = temp<<n; //shifting for complimenting that bit
number = number ^ temp; //xor to complement that bit
printf("%d\n",number);
break;
default:printf("not defined");
}
}
return 0;
}
Execution and Output:
terminal-> $ gcc -o first first.c
terminal-> $ ./first file1.txt
1
4
6
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could you tell me the family link app code to unlock a phone please?
The family link app code needed to unlock a child's phone is typically generated on the parent's device.
Family LinkThe family link app is an innovative feature which allows parents to lock and control their child's devices such as restricting the contents or apps on their child's phone, setting screen times, and many other parental control features.
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Write the definition of a function named isPositive, that receives an integer argument and returns true if the argument is positive, and false otherwise. So, if the argument's value is 7 or 803 or 141 the function returns true. But if the argument's value is -22 or -57, or 0, the function returns false.
Answer:
// header files
#include <iostream>
using namespace std;
// required function
bool isPositive(int num)
{
// check if number is positive
if (num > 0)
{
// return true
return true;
}
// if number is 0 or negative
else
{
// retrun false
return false ;
}
}
// main function
int main() {
// test the function with different values
cout<<isPositive(7)<<endl;
cout<<isPositive(803)<<endl;
cout<<isPositive(141)<<endl;
cout<<isPositive(-22)<<endl;
cout<<isPositive(-57)<<endl;
cout<<isPositive(0)<<endl;
return 0;
}
What is output? Item jar = new Item(); Item ball = new Item(); System.out.println(Item.count); public class Item{ public static int count = 1; public Item(){ count++; } } Group of answer choices 1 Error: syntax error 3 2
Answer:
It's 3
Explanation:
now if you pay attention, you've assigned count as 1 in the beginning and you've asked the class to increase the count variable by 1
and when the program is compiled the code is going to count ball and Jar as numbers
mean jar.count is 2
and ball.count is 3
that's all
A technician is setting up three wireless access points to cover a floor of the office. What channels should the technician use for the access points
The channels that the technician should use for the access points is One access point on channel 1 and the other two access points on channels 6 and 11.
What is an access point?An access point is known to be a tool or a device that forms a wireless local area network, or WLAN, and it is one that is often used in an office or large building.
Note that in the above case, The channels that the technician should use for the access points is One access point on channel 1 and the other two access points on channels 6 and 11 as it fits into the role.
See options below
A)All three access points on the same channel
B)One access point on channel 1 and the other two access points on channels 6 and 11
C)One access point on channel 1 and the other two access points on channels 3 and 5
D)One access point on channel 1 and the other two access points on channels 10 and 11
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_____ are important because they help to ensure data integrity. _____ are important because they help to ensure data integrity. Attributes Relationships Constraints Entities
Constraints are important because they help to ensure data integrity.
What does constraint mean?The term connote a kind of limitation that is often placed on something.
Note that in computing, Constraints are important because they help to ensure data integrity as one will think twice before trying to manipulate data.
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Alex discovers that the network routers that his organization has recently ordered are running a modified firmware version that does not match the hash provided by the manufacturer when he compares them. What type of attack should Alex categorize this attack as
A type of attack which Alex should categorize this attack as is: a supply chain attack.
What is a supply chain attack?A supply chain attack can be defined as a type of attack that typically occurs before software or hardware (equipment) are delivered to a business firm.
In this context, we can infer and logically deduce that a type of attack which Alex should categorize this attack as is: a supply chain attack because the network routers were compromised before they received them.
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is a programming model that focuses on an application's components and data and methods the components use. Group of answer choices Classical programming Functional programming Procedural programming Object-oriented programming
Object-oriented programming is a programming model that focuses on an application's components and data and methods the components use.
What is Object-oriented programming (OOP)?This is known to be a form of a programming paradigm that is known to be due to the idea of "objects", that often contain data and code.
Note that, Object-oriented programming is a programming model that focuses on an application's components and data and methods the components use.
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Write, compile, and test the MovieQuoteInfo class so that it displays your favorite movie quote, the movie it comes from, the character who said it, and the year of the movie: I GOT IT DONT WATCH AD.
class MovieQuoteInfo {
public static void main(String[] args) {
System.out.println("Rosebud,");
System.out.println("said by Charles Foster Kane");
System.out.println("in the movie Citizen Kane");
System.out.println("in 1941.");
}
}
Using the knowledge of computational language in JAVA it is possible to write a code that removes your favorite phrase from the movie. It consists of two classes in which one is driver code to test the MovieQuoteInfo class.
Writing code in JAVA:
public class MovieQuoteInfo { //definition of MovieQuoteInfo class
//All the instance variables marked as private
private String quote;
private String saidBy;
private String movieName;
private int year;
public MovieQuoteInfo(String quote, String saidBy, String movieName, int year) { //parameterized constructor
super();
this.quote = quote;
this.saidBy = saidBy;
this.movieName = movieName;
this.year = year;
}
//getters and setters
public String getQuote() {
return quote;
}
public void setQuote(String quote) {
this.quote = quote;
}
public String getSaidBy() {
return saidBy;
}
public void setSaidBy(String saidBy) {
this.saidBy = saidBy;
}
public String getMovieName() {
return movieName;
}
public void setMovieName(String movieName) {
this.movieName = movieName;
}
public int getYear() {
return year;
}
public void setYear(int year) {
this.year = year;
}
//overriden toString() to print the formatted data
public String toString() {
String s = quote+",\n";
s+="said by "+this.saidBy+"\n";
s+="in the movie "+this.movieName+"\n";
s+="in "+this.year+".";
return s;
}
}
Driver.java
public class Driver { //driver code to test the MovieQuoteInfo class
public static void main(String[] args) {
MovieQuoteInfo quote1 = new MovieQuoteInfo("Rosebud", "Charles Foster Kane", "Citizen Kane", 1941);//Create an object of MovieQuoteInfo class
System.out.println(quote1); //print its details
}
}
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Which kind of license is a legal agreement that allows multiple users to access the software on the server simultaneously?.
Answer:
A network license
Explanation:
Which statement best describes computer systems administrators?
A. They must have excellent organizational skills.
B. They must understand how microprocessors work.
C. They must have knowledge of network security.
D. They must be proficient in multiple computer languages.
The statement that best describes a computer administrator is, that they must have knowledge of network security.
Computer system administrators
An administrator is basically someone solely responsible for carrying out certain tasks. A computer systems administrator is a designation given to someone who is responsible for computer system-related tasks, such as performing maintenance of computer systems and ensuring the security of information on the systems.
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Matt uploads a malware sample to a third-party malware scanning site that uses multiple antimalware and antivirus engines to scan the sample. He receives several different answers for what the malware package is. What has occurred
The thing that has occurred is that there are a lot of vendors that uses different name for malware packages.
What are malware packages?Malware that is malicious software, is known to be any program or file that is said to cause harm to a computer or lets say its user. they are: trojan horses, spyware, etc.
Note that, the thing that has occurred is that there are a lot of vendors that uses different name for malware packages.
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You have compressed a 4 MB file into 2 MB. You are copying the file to another computer that has a FAT32 partition. How will you ensure that the file remains compressed
Answer:
You cannot maintain disk compression on a non-NTFS partition.
Explanation:
What is the difference between asset allocation and diversification?
A) Diversification is much more important than asset allocation in an investment strategy.
B) Asset allocation and diversification are the same.
C) Asset allocation is about risk and diversification is about reward.
D) Asset allocation is the types of investments you choose, diversification is how you spread your investments within each investment type.
The difference between asset allocation and diversification is that Asset allocation is the types of investments you choose, diversification is how you spread your investments within each investment type.
What is the difference between asset allocation and diversification?Asset allocation is known to be the percentage of stocks, bonds, and other form of cash in a person's portfolio, while diversification entails the act of spreading one's assets in all of one's asset classes within the given three buckets.
Therefore, The difference between asset allocation and diversification is that Asset allocation is the types of investments you choose, diversification is how you spread your investments within each investment type.
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Inheritance means ________. Question 18 options: A) that a class can contain another class B) that data fields should be declared private C) that a variable of supertype can refer to a subtype object D) that a class can extend another class
Answer:
Inheritance means D) that a class can extend another class.
1. The biggest advantage of an object created either as an object literal or with the new Object() command is that the object is reusable. True False
It is true that The biggest advantage of an object created either as an object literal or with the new Object() command is that the object is reusable.
What is JavaScript?JavaScript refer to a programming language that is use to create a unique session with web browsers supplying information.
Therefore, It is true that The biggest advantage of an object created either as an object literal or with the new Object() command is that the object is reusable.
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Write the output of the following:
DECLARE FUNCTION
program
SUM (A, B)
Answer:
#include<studio.h>
Int main()
{
Int a=10, b= 20, sum;
Sum =a+b;
Printf(“ sum = %d”, sum );
Return 0;
}
Explanation:
Let's Assume A = 10 and B = 20
Stephen is slowing down as he approaches a red light. He is looking in his mirror to switch lanes and misjudges how close Keisha's car is, rear-ending her car. When
they get out and assess the damage, Keisha's bumper will need to be replaced. What type(s) of insurance could Stephen use to cover this accident? Explain.
Krisha had some discomfort in her neck at the time of the accident but thought it was minor and would go away. A week or so after the accident, Keisha finally goes
What t) of insurance could Keisha use to cover this accident?
The type of insurance that Stephen could use to cover this accident is known as liability coverage
What t) of insurance could Keisha use to cover this accident?The insurance that Keisha could use to cover this accident is personal injury protection.
In the case above, The type of insurance that Stephen could use to cover this accident is known as liability coverage as damage was one to his property.
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list three things that can spoil a printer if they are not of the correct specification and what damage may be caused
Answer:
Debris, excess ink splatted around (from refilling probably), and the presence of small objects
Explanation:
contribute to paper jams and cause your printer to work inefficiently. Some printers have self-cleaning functions especially, for printer heads
What is the process of identifying rare or unexpected items or events in a data set that do not conform to other items in the data set
Anomaly detection is the process of identifying rare or unexpected items or events in a data set that do not conform to other items in the data set.
What is Data?This is referred to as a raw form of information and comprises of facts, numbers, etc.
Anomaly detection identifies abnormal data from a given set which is why it is the most appropriate choice.
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What is the missing line of code? >>>from math th import >>> Point = [1,5) >>> bPoint [4.9]
Answer:
I believe import math.
Do let me know if its correct.
Hisoka is creating a summary document for new employees about their options for different mobile devices. One part of his report covers encryption. What would Hisoka NOT include in his document
Hisoka would not include in his document that is Apple users file-based encryption to offer a higher level of security.
Does Apple use the file based encryption?It is said that iOS and iPad OS devices are known to often use a file encryption system known to be Data Protection.
Therefore, Hisoka would not include in his document that is Apple users file-based encryption to offer a higher level of security.
Hence option A is correct.
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What is a security strategy comprised of products and services that offer remote support for mobile devices, such as smart phones, laptops, and tablets
Mobile device management is a security strategy comprised of products and services that offer remote support for mobile devices.
What is the aim of mobile device management MDM?Mobile device management (MDM) is known to be a kind of software that helps a lot of IT administrators to run, secure and use policies on smartphones, tablets and other kind of endpoints.
Therefore, Mobile device management is a security strategy comprised of products and services that offer remote support for mobile devices.
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A computer professional's job involves analyzing computer systems for
businesses and determining whether they are protected from cyber threats.
Which discipline includes this job?
A. Information technology
B. Computer engineering
C. Software engineering
D. Computer science
Information technology is the discipline that includes analyzing computer systems for businesses and determining whether they are protected from cyber threats. Option A is correct.
What is information technology?The practice of using computers to generate, process, store, retrieve, and communicate various types of electronic data and information is known as information technology (IT).
Analysis of computer systems for organizations to ascertain if they are secure against cyber attacks is part of a computer professional's work. This position falls within the discipline of information technology.
Unlike personal or recreational technology, IT is primarily utilized in the context of commercial activities.
A computer professional's job involves analyzing computer systems for businesses and determining whether they are protected from cyber threats. The discipline included in this job will be Information technology.
Hence option A is correct.
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Answer:
a.
Explanation:
There are a number of Dealership stores opening, so a decision is made that when a car is created, it should be passed a pointer to its dealership along with its make and model. It should store the dealership pointer in an appropriate data member. Write the data member and necessary constructor declarations in the space provided.
The data member based on the information about the dealership stores is illustrated below.
What are data members?Data members are the members that are declared with any of the fundamental types like the pointer, reference, array types, and user-defined types.
The data members and necessary constructor declaration will be:
class Car{
public :
string m_make ;
string m_model;
double m_earnedOnCar;
//Added data member for the car dealership
Car* m_dealerShip;
public :
Car(string str1,string str2){
this->m_make=str1;
this->m_model=str2;
}
//Address constructor to add the dealership to the car
Car(Car* car){
this->m_dealerShip=car;
}
//copy constructor to copy dealership of the car
Car(const Car &car) {
this->m_dealerShip=car.m_dealerShip;
}
//add method to add the dealership of the car
void add(Car* car){
this->m_dealerShip=car;
}
double getAmmountEarnedOnCar(){
return this->m_earnedOnCar;
}
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A user calls in about a printer issue. You ask for the IPv4 address listed on the printer's configuration report. The user reads an IPv4 address of 169.254.13.50 from the report. What would this tell you
The IPv4 address of 169.254.13.50 tells that the printer failed to obtain an IP address from DHCP.
What IP Addresses in Network Printers?The IP address is known to be one that is special to the printer as it is one that works as a form of an identifier and it is one that informs a computer where to see the printer on the network.
So, one can say that the IPv4 address of 169.254.13.50 tells that the printer failed to obtain an IP address from DHCP.
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A user calls in about a printer issues. You ask for the IPv4 address listed on the printer's
configuration report. The user reads an IPv4 address of 169.254.13.50 from the report. What would
this tell you?
a. The printer has a paper jam
b. The printer failed to obtain an IP address from DHCP
c. The printer had too many print jobs sent to it
d. The printer had a valid IP address and should work after a restart
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Write a function that receives a StaticArray where the elements are in sorted order, and returns a new StaticArray with squares of the values from the original array, sorted in non-descending order. The original array should not be modified.
Answer:
def sa_sort(arr):
for i in range(len(arr)):
for j in range(0, len(arr) - i-1):
if arr[j] > arr[j + 1]:
arr[j], arr[j + 1] = arr[j + 1], arr[j]
test_cases = (
[1, 10, 2, 20, 3, 30, 4, 40, 5], ['zebra2', 'apple', 'tomato', 'apple', 'zebra1'],
[(1, 1), (20, 1), (1, 20), (2, 20)])
for case in test_cases:
print(case)
sa_sort(case)
print(case)
Explanation:
PHOTOGRAPHY: In 200 words or more explain the difference between deep and shallow depth field and when would you use either technique when taking a photograph?
The differences are:
A shallow depth of field is said to be a small area in view and its background is always blurred but a A deep depth of field is known to be one that captures a bigger area in view and its image are said to be sharp and clear.What is the difference between deep and shallow focus?The Images gotten in shallow focus is one that needs little or shallow depths of field, and its lenses also needs long focal lengths, and big apertures. But Deep focus images needs small focal lengths and long depths of field.
In the case above i recommend deep depth field and therefore, The differences are:
A shallow depth of field is said to be a small area in view and its background is always blurred but a A deep depth of field is known to be one that captures a bigger area in view and its image are said to be sharp and clear.Learn more about photograph from
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What mitigation measures would you recommend for securing loose electronic items such as television sets, computer monitors, and electric appliances
The mitigation measures that I can recommend for securing loose electronic items such as television sets are:
The use of special hooksThe use of VelcroThe use of bungee cords, and others.How do one Secure Loose Items?There are special tools that one can use to secure any item from getting lost or missing.
Note that The mitigation measures that I can recommend for securing loose electronic items such as television sets are:
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/* Stretch 1: Create a function called `getCountryWins` that takes the parameters `data` and `team initials` and returns the number of world cup wins that country has had.
Hint: Investigate your data to find "team initials"!
Hint: use `.reduce` */
fifa.js:
export const fifaData = [
{
Year: 1930,
Datetime: "13 Jul 1930 - 15:00",
Stage: "Group 1",
Stadium: "Pocitos",
City: "Montevideo",
"Home Team Name": "France",
"Home Team Goals": 4,
"Away Team Goals": 1,
"Away Team Name": "Mexico",
"Win conditions": "",
Attendance: 4444,
"Half-time Home Goals": 3,
"Half-time Away Goals": 0,
Referee: "LOMBARDI Domingo (URU)",
"Assistant 1": "CRISTOPHE Henry (BEL)",
"Assistant 2": "REGO Gilberto (BRA)",
RoundID: 201,
MatchID: 1096,
"Home Team Initials": "FRA",
"Away Team Initials": "MEX",
},
The function called `getCountryWins` which takes the parameters `data` and `team initials` and returns the number of world cup wins that country has had is:
The functionfunction getCountryWins(FRA) {
initialValue,
currentIndex,
return total + currentValue getCountryWins(FRA);
"World Cup wins": 2,
array.reduce(function(total, currentValue, currentIndex, arr), initialValue)
}
The above function calls the function that contains the data and team initials of the country France and then uses the reduce() method executes a reducer function for the array element.
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