Answer:
A. data-link layer
Explanation:
Data-link layer is the first layer and allows a contiguous sequence of bits to be transmitted through the network.
On top of it is the Network Layer and it handles the task of routing network messages from one computer to another.
Then comes the Transport Layer which is the basic layer at which one network computer communicates with another network computer.
The first layer of the OSI model is the Physical Layer, which is responsible for the transmission of raw bit streams over a physical medium.
The Open Systems Interconnection (OSI) model is a conceptual framework used to understand and design network systems. It divides network communications into seven distinct layers, each with its own specific function. The first and lowest layer is the Physical Layer, which deals with the transmission of raw bit streams over a physical medium, such as cables and switches.
The seven layers of the OSI model are:
Physical LayerData-Link LayerNetwork LayerTransport LayerSession LayerPresentation LayerApplication LayerWhich of the example DFSs discussed in this chapter would handle a large, multiclient database application most efficiently? Explain your answer
Answer: A.F.S- known as Andrew File System.
Explanation:
This is a distributed network file system created to handle large multiclient database. It support Information sharing on a large scale by reducing client-server communication.
Given an int variable n that has already been declared and initialized to a positive value , use a while loop to print a single line consisting of n asterisks. Use no variables other than n.
Final answer:
To print a line of n asterisks with a while loop using only the variable n, a loop would run to print an asterisk and decrement n by one until n reaches zero, without using additional variables.
Explanation:
To print a single line consisting of n asterisks using a while loop in a programming language without using any variables other than n, which has already been initialized to a positive value, you could use the following pseudocode:
while (n > 0) {
print("*");
n = n - 1;
}
This pseudocode highlights the use of a while loop to print asterisks. The loop continues to run as long as n is greater than zero, printing an asterisk and then decrementing n by one on each iteration. There is no need for additional variables; we are only manipulating the value of n within the loop.
In actual code, depending on the programming language you are using, you might use a function like print() or System.out.print() to print each asterisk without a newline character, allowing them to be printed on the same line.
_______________ refers to the type of artificial intelligence that leverages massive amounts of data so that computers can improve the accuracy of actions and predictions on their own without additional programming.
Answer:
Machine learning
Explanation:
Machine learning is a field of artificial intelligence (AI) that provides systems to automatically learn and improve from processing and leveraging data without being explicitly programmed.
With the use of machine learning computer programs can be developed so that they can access data and use it learn for themselves.
Thus,
Machine learning refers to the type of artificial intelligence that leverages massive amounts of data so that computers can improve the accuracy of actions and predictions on their own without additional programming.
Bob gets an e-mail addressed from his bank, asking for his user ID and password. He then notices that the e-mail has poor grammar and incorrect spelling. He calls up his bank to ask if they sent the e-mail, and they promptly tell him they did not and would not ask for that kind of information. What is this type of attack called?
This type of attack is called as phishing emails.
Explanation:
Normally any bank will not ask end user about login details such user id, password, pin number in email. So bob as think and before responding the mail. Moreover this type email to be considered as hacker email, who want to access the bob accounts and do access his account and steal money from bob accounts.
Luckily bob contacted bank to stop further hackers not to his accounts. Since it is grammar mistake bob understood it is hackers who asking bob user id and password.
Bob has prompted these type of mails are called phishing emails. Better to avoid it.
Final answer:
The attack described in the question is known as phishing, which is a deceitful attempt to obtain sensitive information like passwords via email by pretending to be a legitimate entity. Spear phishing is a more targeted form of phishing. Both are examples of social engineering techniques used by cybercriminals.
Explanation:
The type of attack described in this scenario is known as phishing. Phishing is a form of cyber attack where attackers use fraudulent emails that appear to come from legitimate sources, such as a bank, to trick individuals into providing sensitive information like passwords and user IDs. The method often involves poor grammar and incorrect spelling, and banks will never ask for such sensitive information via email.
Sometimes phishing attempts can be more targeted and sophisticated, this is called spear phishing, which involves emails personalized with information known about the individual to increase the chances of success. This type of activity is a part of larger social engineering techniques, where hackers use psychological manipulation to trick users into making security mistakes or giving away sensitive information. These criminals exploit human weaknesses to bypass sophisticated security measures by simply asking for confidential information.
You want to create Web pages that can easily adapt to and serve multimedia content to smartphones, tablets, gaming devices and smart TVs, as well as to traditional desktop computers, without the use of plug-ins.
Which of the following would be best suited for this purpose?
Answer:
HTML5
Explanation:
HTML5 has features to create a webpage or pages without using external plug ins. With the help of API's we can alos add content related to multimedia.
What's the purpose of maintaining a network of digital forensics specialists?
Answer:
Explanation:
Digital forensics comes under forensic science, which is mainly used to investigate and search for evidence of crime through electronic devices i.e. computer systems.
Digital forensics specialists are mainly used to deal with the cases related to electronic devices i.e. computers, to search for evidence of the case, which helps to make the correct decision.
The purpose of maintaining a network of digital forensics specialists is to tackle cybercrimes, support legal processes, and ensure digital security. They work with law enforcement and provide expertise in technology use and surveillance.
Explanation:Purpose of Maintaining a Network of Digital Forensics Specialists
The purpose of maintaining a network of digital forensics specialists is multi-faceted. These experts play a crucial role in addressing cybercrimes, which have evolved with advancements in digital communications and encrypted digital streaming. The forensic psychology aspect involves understanding the behavior of individuals within the criminal justice system, including the assessment of the reliability of eyewitnesses and jury selection. Additionally, these specialists support legal situations by determining what happened in cases involving digital evidence and formulate interpretations that influence both public and private sector decisions.
To combat crimes that use advanced technologies, large corporations and law enforcement agencies rely on the expertise of digital forensics professionals to navigate the complexities of technology and surveillance. They also help inform policy and practice, as seen in crime mapping and analysis, which utilizes GIS technology to digitally plot and analyze crime data to aid law enforcement strategies.
In a broader societal context, digital forensics specialists contribute to addressing the challenges posed by misuse of technology, such as unchecked data collection and surveillance by powerful entities. They assist in ensuring digital security and protecting sensitive information, advocating for integrity and responsibility in the digital age.
Which terms are used in conditional logic functions? Choose all that apply
WHEN
IF
OR
NOR
IFTRUE
IFERROR
Answer:
The correct option to this question can be given as:
IF IFERRORExplanation:
The above options are used in the conditional logic function that is available in Microsoft Excel. In excel this function is used for creating a conditional equation and it is normally used to check several tasks and make a logical decision between them. and other options are wrong that can be described as:
WHEN and IFTRUE conditions are used in the programming language. for example C, C++, SQL. OR and NOR is used in boolean operator function in excel, It will return only true or false value.
Assume that printStars is a function that takes one argument and returns no value. It prints a line of N stars (followed by a newline character) where N is the value of the argument received. Write a statement that invokes printStars to make a line of 35 stars.
Answer:
printStars(35);
Explanation:
public class Question {
public static void main(String args[]) {
printStars(35);
}
public static void printStars(int numberOfStars){
for(int i = 1; i <= numberOfStars; i++){
System.out.print("*");
}
System.out.print("\n");
}
}
The process of recording an actor’s movement digitally for the purpose of animating a digital character in a movie is called Realistic Animation Motion Capture CGI (Computer Generated Imagery) Performance Animation
Answer:
It is called Motion Capture.
Explanation:
Motion capture it's a widely used technology that allows us to record (or capture) the movements of a real person, and convert them to a digital environment.
It can be used in the development of video games when facial expressions or realistic movements are needed to bring fictional characters to life, motion sensors are used on a real person, and the person displays the necessary emotions, movements or expressions that are later digitally adapted to the 3D character.
Motion capture was one of the main techniques used to bring the famous Thanos, the famous Avenger's villain to life. Josh Brolin, the actor, would perform almost every scene wearing a specialized suit to capture the movements and facial expressions that were introduced to the 3D rendered Thanos model.
When talking about changes related to information technology, the text identifies three interrelated changes that are responsible for the bulk of innovations. These include the mobile digital platform, the growth of cloud computing, and ________.
A.faster networks
B.improved application software
C.the Internet
D.the growing use of big data
E.home computing
Answer:
The Growing use of Big data
Explanation:
In information technology big data is along with mobile digital platforms and cloud computing are responsible for bulk of innovations.
Big data is a large set of data that can be analyzed and used for pattern recognition, and extract information from different collection of data. This analysis or collection of data leads to innovation in the field of information technology.
An administrator has two servers that host the same web content, but only one server is utilized at a given time.
What can be configured that can help to evenly distribute work across the network, and make use of both servers in a manner that is transparent to the end-users?
a. stateful packet filtering
b. load-balancing
c. failover servers
d. proxy servers
Answer: (B) Load balancing
Explanation:
The load balancing is one of the computing element that helps in improving the workload distribution across the multiple resources of the computing such as disk driver, network links, CPU (Central processing unit) and the computer clusters.
The load balancing is basically refers to the distribution technique that help the incoming traffic in the network.The load balancing also improve the responsiveness. Increases the various types of application availability.Therefore, Option (B) is correct.
_____ computing refers to a computing environment that is always present, can feel our surroundings, and-based on who we are, where we are, and whom we are with-offer recommendations.
a. Grid.
b. Contextual.
c. Distributed.
d. Cluster
Answer:
b. Contextual computing
Explanation:
Contextual computing -
In this method of computing , the hardware and the software collect and examine the data all by itself from the near by areas in order to make it presentable , is known as the method of contextual computing .
It is also known as the context - aware computing .
Hence , from the given information of the question , the correct term from the given options is b. Contextual computing .
You are the network administrator for a company. The company's policy is that the users are allowed to set their own passwords but that they must change their password every 30 days. You have just received a call from a user who can't log on because she forgot her password. After you change her password, which of the password options listed would you set in the user's account so that she will have to change the password when she logs on using the password you assigned. True or False?
The above given question is incomplete as it does not contains the options that must be listed. Following are the options given for the above question:
a.
Password never expires.
b.
User cannot change password.
c.
User must change password at next logon.
d.
Account is disabled.
Answer:
Option c. User must change password at next logon.
is the correct answer.
Explanation:
In the password policy for different applications, it is the common practice that whenever the user can't access his/her account due to forgetting the password or due to hacking of its account, they are provided with the password by the network administrator so that they my log on to their profiles.
Now when the user will be notified of the new password that is changed by the administrator she must change her password at next logon so that she may secure the account and remember the new password created by herself for further logons.
i hope it will help you!
Write a function called check_nums that takes a list as its parameter, and contains a while loop that only stops once the element of the list is the number 7. What is returned is a list of all of the numbers up until it reaches 7.
Answer:
Following are the program in the Python Programming Language:
def check_nums(length): #define function
my_lst=[] #set list type variable
n=0 #set integer type variable
while(length[n] != 7): #set the while loop
my_lst.append(length[n]) #append liat in my_lst
n+=1 #increament in n
if(len(length)==n): #set if condition
break #break the loop
return my_lst #return the list
l=[4,6,2,55,16,7,81] #set list variable and assign list init
print(check_nums(l)) #call and print the function
Output:
[4, 6, 2, 55, 16]
Explanation:
Here, we define a function "check_nums()" and pass an argument in its parentheses inside the function,
we set list data type variable "my_lst" and integer type variable "n"we set while loop and pass the condition is the variable "length[n]" is not equal to the 7 then, the value of "length[n] " is appends to the variable "my_lst" and increment in the variable "n" by 1.we set if condition and check when the length of the variable "length" is equal to the variable "n" then, break the loop and return the value of "my_lst".Finally, set the list type variable "l" and assign the list of numeric value in it then, call and print the function "check_nums"
In this exercise, using the knowledge of computational language in python, we have that this code will be written as:
The code is in the attached image.
We can write the python as:
def check_nums(length):
my_lst=[]
n=0
while(length[n] != 7):
my_lst.append(length[n])
n+=1
if(len(length)==n):
break
return my_lst
l=[4,6,2,55,16,7,81]
print(check_nums(l))
See more about python at brainly.com/question/13437928
What does C4 refer to in the function =MATCH(C4,earnings,-1)?
A. The search row
B. The named range
C. The lookup value
D. The match type
Answer:
The match type
Explanation:
This command is used to find the smallest value from lookyp array that is larger than look up value. lookup value in lookup array.
This command is look like:
=Match (Lookup Value,lookup array, match type)
in given example
lookup value is C4, Lookup Array is earnings and -1 is match type.
due to -1,
this function find the value from earnings that is smallest in array but larger than C4.
Which of the following is not a skill set required by data scientists? A. Programming expertise B. Big data expertise C. Telecommunications expertise D. Database systems expertise
Answer:
Explanation:Option C is the correct answer.
Final answer:
The skill set not typically required by data scientists is Telecommunications expertise. Data scientists usually focus on programming, big data, and database systems expertise.
Explanation:
The skill set not required by data scientists among the options provided is C. Telecommunications expertise.
Data scientists typically focus on skills such as programming expertise, big data expertise, and database systems expertise to manage and analyze large sets of data, extract insights, and develop data-driven solutions.
Telecommunications expertise is more relevant to fields involved with the infrastructure for the transmission of information and would not usually be a core requirement for a data scientist's role.
The variety of theatre introduced in the 1960s that denotes semi-professional or even amateur theatre in the New York/Manhattan area, often in locations such as church basements, YMCAs, and coffeehouses, is commonly known as off-off-Broadway.
a. True.
b. False.
Answer:
Option a. True
Explanation:
The given statement is true because the off-off-Broadway was a movement started from 1958. It can be discussed as:
(Amateur theater ) that rejected all other commercial theaters.Most of the off-off-Broadways were made in 1960's in coffee shops of New York.Stage plays were performed experimentally without taking a notice on the playwrights and actors.During Integration, the experimental work was of great value and was known for its nature.Gradually the image of Broadway got down while reshaping itself and the produced works were no longer suitable for commercial theaters. Many of the plays from these theaters are still known such as:The Dove CompanyThe old reliableLa Mamai hope it will help you!
To output the contents of a fully-filled two-dimensional array using pseudocode, write out the elements in the columns within a row, before moving to the next row, using a ________ loop within another.
A. DOWHILE
B. REPEAT UNTIL
C. DO
D. None of the other answers are correct
Answer:
B.
Explanation:
Based on the information provided within the question it can be said that the loop that should be used is a repeat until loop. This is because this loop will continue cycling until a certain condition is met. In this situation, the loop breakout condition would be the output of the final element in the last column and row of the two-dimensional array.
Final answer:
To output the contents of a fully-filled two-dimensional array using pseudocode, you can use a nested FOR loop. The outer loop will iterate over the rows of the array, while the inner loop will iterate over the columns within each row.
Explanation:
To output the contents of a fully-filled two-dimensional array using pseudocode, you can use a nested FOR loop. The outer loop will iterate over the rows of the array, while the inner loop will iterate over the columns within each row. Here's an example:
FOR row = 1 TO number_of_rows
FOR column = 1 TO number_of_columns
OUTPUT array[row][column]
END FOR
END FOR
In this pseudocode, number_of_rows and number_of_columns represent the dimensions of the array. The OUTPUT statement is used to display the value of each element in the array.
Which of the following is a correct method header for receiving a two-dimensional array as an argument?A.public static void passArray(int[1,2])B.public static void passArray(int [ ][ ])C.public static void passArray(int[1],[2])D.public static void passArray(in[ ], int[ ])
Answer:
The correct option for this question is "B".
Explanation:
An Array is a collection of the homogenous(same type) elements. In the programming language, the correct way to pass two-dimensional array in function as an argument is option "B" and other options are not correct that can be described as:
In option, A It is a one-dimensional array but it is not a correct way to pass array in an argument like this. In option, C It is a two-dimensional array but in this array, we do not pass any number. In option, D it is not a two-dimensional array.That's why the answer to this question is option "B".
Final answer:
The correct method header for receiving a two-dimensional array in Java is 'public static void passArray(int [][])', which allows a method to accept a 2D array as its parameter.
Explanation:
The correct method header for receiving a two-dimensional array as an argument in Java is option B: public static void passArray(int [][]). This syntax is used to denote that the method takes a two-dimensional array of integers as its parameter. You use two sets of square brackets to indicate that the array is two-dimensional. The other options are either syntactically incorrect or do not properly represent a two-dimensional array.
All ____ language programs tell the computer how to manipulate the contents of memory locations step-by-step.
functional
baseline
procedural
logical
Answer:
logical
Explanation:
logical
A ________ cloud allows an organization to take advantage of the scalability and cost-effectiveness that a public cloud computing environment offers without exposing mission-critical applications and data to the outside world.
a) hybridb) privatec) pointd) community
Answer:
a) hybrid cloud
Explanation:
Hybrid cloud -
It is mixes cloud computing methodology , which require a mixture of private cloud , on premises and the public cloud service and third party and thereby the balance between the two , is known as the Hybrid cloud .
This type of cloud enables more flexibility and the movement between the public and the private clouds .
Hence , from the statement of the question , the correct term from the given option is a) hybrid cloud .
Lily's supervisor asked her to add visual interest to the company Web site by tilting images at a slight angle. Lily knows this transformation will differ depending on the browser used to view it. Which vendor prefix property will allow her to apply the transformation when the page is viewed in Chrome and Safari?
Answer: WebKit transform style
Explanation:
This is a type of vendor prefix which is a string of characters which are related to a specific browser engineer. WebKit is related to chrome, safari, Android browser.
Agape was asked to make a recommendation regarding short-range wireless technologies to be supported in a new conference room that was being renovated. Which of the following would she NOT consider due to its slow speed and its low deployment levels today?A. ANTB. BluetoothC. InfraredD. NFC
Answer:
C. Infrared
Explanation:
According to my experience in the field of information technology, I can say that the one technology that she would not consider is infrared. Even though infrared is used in for many applications such as remote controls and sensors it is not that good for wireless communications. This is because compared to the other options available, infrared is only short range, the speeds at which it can transmit are very low, and any physical object can immediately block the signal and cause interference.
What does the following program do?
import turtle
def main():
turtle.hideturtle()
square(100,0,50,'blue')
def square(x, y, width, color):
turtle.penup()
turtle.goto(x, y)
turtle.fillcolor(color)
turtle.pendown()
turtle.begin_fill()
for count in range(2):
turtle.forward(width)
turtle.left(90)
turtle.end_fill()
main()
It draws 2 blue lines.
A) It draws a blue square at coordinates (100, 0), 50 pixels wide, starting at the top right.B) It draws a blue square at coordinates (0, 50), 100 pixels wide, starting at the top right.C) It draws a blue square at coordinates (100, 0), 50 pixels wide, in the lower-left corner.D) Nothing since you cannot call a function with turtle graphics corner
Answer:
C
Explanation:
It draws the blue square at coordinates (100,0) 50 pixel wide, and in the lower-left corner. You should know that the lower-left corner of the square should be at position x, y. Hence, the answer.
And this is true for any shape that you draw using turtle graphics in Python.
You should also know the function format of python, and how it is defined, declared and called. The penup command tells the turtle to not show what is drawn, or hide the ink. The pen down is just opposite to this.
The count is an inbuilt function that counts and can be used as above with range to create a for the look. forward moves the cursor according to width mentioned.
See how to pen down is called before beginning fill. And how we move to x,y using go to, and how the penup is used to hide ink while fill color is in effect, and we move to x,y.
End fill ends the process.
Write an application that displays the factorial for every integer value from 1 to 10. A factorial of a number is the product of that number multiplied by each positive integer lower than it. For example, 4 factorial is 4 * 3 * 2 * 1, or 24. The output would then be The factorial of 4 is 24. how i do solve this Java Programming Problem?
Answer:
The program to this question can be given as:
Program:
class Main //define class.
{
public static void main(String args[]) //define main method
{
int i,Factorial=1; //define variable.
for(i=1;i<=10;i++)
// for loop
{
Factorial=Factorial*i; //variable hold value
System.out.println("Factorial of "+i+" is: "+Factorial); //print value
}
}
}
Output:
Factorial of 1 is: 1
Factorial of 2 is: 2
Factorial of 3 is: 6
Factorial of 4 is: 24
Factorial of 5 is: 120
Factorial of 6 is: 720
Factorial of 7 is: 5040
Factorial of 8 is: 40320
Factorial of 9 is: 362880
Factorial of 10 is: 3628800
Explanation:
The description of the above java program can be given as:
In the above factorial program firstly we define the Main class. In this class, we define the main method. Then we define the main method, in this method, we define a variable that is "i and factorial". The variable i is used in the loop and the variable factorial is used for holding factorial value. Then we define for loop it is an entry control loop. In this loop we calculate factorial form numbers 1 to 10. and print the values.
. Use of communications and information systems that are familiar to users is a part of which key principle? A. Security
B. Reliability, Scalability, and Portability
C. Resilience and Redundancy
D. Interoperability
Answer
Option B.Reliability, Scalability, and Portability.
Explanation:
Use of communications and information systems that are familiar to users is a part of Reliability, Scalability, and Portability.
So option B is correct one
The principle related to the use of familiar information systems by users is Interoperability, which supports seamless interaction with other systems, ensuring reliability, efficiency, and security. The correct option is D. Interoperability.
Use of communications and information systems that are familiar to users falls under the key principle of D. Interoperability. This principle implies that different information systems, devices, and applications should be able to work together within and across organizational boundaries in order to facilitate efficient and effective integration of technology and exchange of information. Specifically, when systems are interoperable, they not only enhance user experience by utilizing familiar interfaces, but also support functionality that allows for effective communication and data exchange, which is crucial for the development of national IT infrastructures with high transmission capacity and access to interactive public e-services.
An organization may face the choice of outsourcing IT development versus in-house service development to meet requirements such as security, efficiency, availability, and the needed transmission capacity. By focusing on interoperability, the organization ensures that its IT infrastructure can interact with other systems seamlessly, which is essential for maintaining reliability and optimizing cost without compromising on security and essential functionalities like confidentiality, integrity, and availability of information.
Routers:_________
a) operate at the application layer
b) operate only at the physical layer
c) cannot connect two or more networks that use the same type of cable
d) may also be called TCP/IP gateways
e) operate only at the data link layer 2
Answer:
d) may also be called TCP/IP gateways
Explanation:
A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet.
Routers generally operate in the network layer of the OSI model.
Routers can connect two or more networks that use the same type of cable
Juan comes across documentation from his organization related to several information security initiatives using different standards as their reference. Which International Organization for Standardization (ISO) standard provides current guidance on information security management?
Answer:
Answer to the following question is ISO 27002.
Explanation:
ISO(International Organization for Standardization) 27002 or ISO/IEC 27002 is referred to as it is the standard supplementary that hs pay particular attention to the information security to secure those organizations which might be chosen to apply.
Purpose:
The main purpose of the ISO 27002 is to collect all the important information securities guidelines that design for the particular purpose to help the firm or an organization to improve and maintain the management of its information security.
When BranchCache is being utilized in an office and a client computer makes a subsequent request for a file, what will indicate to the client where the file can be retrieved from the cache in the branch office?
A. encrypted fileB. content informationC. original informationD. cached file
Answer:
Content Information
Explanation:
Client is the end user that required only information that is related to his desire. To access this information, the client request for the desired information. In response to the client request, relevant information that is required to the client is provided. This information is also called content information.
This the information that is provided to the end users only. In mentioned case client is the end user so branch cache will provided him only information about content.
Write a loop that displays all possible combinations of two letters where the letters are 'a', or 'b', or 'c', or 'd', or 'e'. The combinations should be displayed in ascending alphabetical order:
Answer:
In what programming language?
Explanation: