In the world of cryptography, a hybrid cryptosystem combines the efficiency of a symmetric cryptosystem with the practicality of a public-key cryptosystem.
Public-key cryptosystems are useful because neither the sender nor the receiver must divulge a secret in order to communicate safely. They are much less efficient than symmetric-key cryptosystems of comparable strength, however, because they usually depend on complex mathematical calculations.
In public-key cryptosystems, long communications can be expensive to encrypt, which may be prohibitive in many applications. Both of these are combined in hybrid systems to deal with this. How does the Combined Encryption combine symmetric and assymmetric encryption? Prior to being encrypted asymmetrically using the key, the message is first encrypted using symmetric encryption.
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select all the true statements: group of answer choices let u, v be two vertices in the directed graph g. after running the depth-first search algorithm on g, it is possible to get the following discovery and finishing times: u.d
An algorithm for exploring or traversing trees or graphs is called depth-first search (DFS).
What is DFS algorithm example?An algorithm for exploring or traversing trees or graphs is called depth-first search (DFS). The algorithm begins at the root node (choosing some random node to be the root node in the case of a graph) and proceeds to explore as far as it can along each branch before turning around.Example of a Depth First Search Five vertices make up the undirected graph we use.Starting with vertex 0, the DFS algorithm places it in the Visited list and adds all of its neighboring vertices to the stack.We then go to the neighbouring nodes of the element at the top of the stack, or 1, which is 1. BFS is a traversal technique, which means that before going to the next level, we must first traverse through every node on the current level.Another traversal strategy is DFS, in which the traverse starts at the root node and moves through the nodes as far as it can until it reaches the node that has no unvisited neighboring nodes.To learn more about DFS refer
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What is media in what ways does the media play an important role in a democracy?.
In a democracy, the media is crucial. It delivers news and examines national and international issues.
We understand how the government functions as a result of this information. The government's controversial policies and programs are criticized by the media as well. The following are some key ways that media contribute to democracy: They educate the public on specific issues and problems. They spread information about the government's policies and initiatives. They also criticize the government's controversial programs and policies. First, it makes sure that people don't behave based on ignorance or false information but rather make wise, educated decisions. By ensuring that elected officials follow their oaths of office, information performs a "checking role" in the second place.
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why is link-by-link encryption for confidentiality not fully secure even if there is encryption for confidentiality in all links along the way?
Link-by-link encryption for confidentiality is not fully secure even if there is encryption for confidentiality in all links along the way because Devices along the way may not be secure.
A message moving through a network is encrypted and decrypted at each node using the link encryption approach. It serves as a safeguard against traffic analysis and human error.
Transmission is encrypted at each node, including devices and network switches, with connection encryption. All of the data travels through this process at these locations, including the header and routing data. The automatic encryption that occurs with connection encryption is a benefit. This lessens the possibility of human error. Another is that link encryption is resistant to traffic analysis if the communications link is operational continuously and the traffic level is constant.
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you must choose one of the possible areas below, writing a long paragraph (at least half a page, single spaced) describing what that area might be like in an engels non-capitalist technologically driven future.
Utopias are imagined societies in which humans live their best lives. Utopias are here distinguished from dystopias.
Dystopias are imagined societies in which the social structure is tragically flawed, resulting in human suffering, misery, and difficult-to-overcome barriers to a decent life.
A Paragraph on Engels-inspired utopia:
A society with very little state intervention and a life centered on technology are examples of Engels-inspired utopias. It depicts a life free of the flaws of capitalism, resulting in a happy, ideal life.
Capitalism is an economic system in which private ownership is permitted to allow the exchange of goods and services in a competitive monetary system. In this ideal society, technology would solve global issues such as having clean energy.
People in this society would be able to have any desire or need they desired with little opposition. In such an Engels-inspired utopian life, advanced smart homes and 3D printing would be used to enforce a society.
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Scenario 2, continuedA teammate creates a new plot based on the chocolate bar data. The teammate asks you to make some revisions to their code.Assume your teammate shares the following code chunk:ggplot(data = best_trimmed_flavors_df) +geom_bar(mapping = aes(x = Rating)) +What code chunk do you add to the third line to create wrap around facets of the variable Rating?
Using the codes in computational language in python it is possible to write a code that creates a new plot based on the chocolate bar data.
Writting the code:# load the dataset from local storage
df=pd.read_csv("")
# Understanding the basic ground information of my data
def all_about_my_data(df):
print("Here is some Basic Ground Info about your Data:\n")
# Shape of the dataframe
print("Number of Instances:",df.shape[0])
print("Number of Features:",df.shape[1])
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If the un were 1m in diameter , How far away from it would each of the planet be?
-atronimy cla
The conventional diameter of the Death Star was 120 kilometers. We are all aware that up close, large objects might appear to be much smaller. Stars are enormous and located far away.
Large, circular celestial objects that are neither stars nor their remnants are known as planets. The nebular hypothesis, which states that an interstellar cloud collapses out of a nebula to create a young protestor orbited by a protoplanetary disk, is currently the best theory for planet formation. The steady accumulation of matter accelerated by gravity, or accretion, is how planets expand within this disk.
There are at least eight planets in the Solar System, including the giant planets Jupiter, Saturn, Uranus, and Neptune as well as the terrestrial planets Mercury, Venus, Earth, and Mars. Each of these planets has a rotational axis that is tilted relative to its orbital pole. Although Mercury's atmosphere is tenuous, they all have atmospheres, and some of them have similar features like ice caps.
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if the n 2 format specifier is used on the number 5 .378, the resulting value will be 5 .37. question 64 options: true false
Both input and output employ the format specifier. It is a means of informing the compiler what kind of data is included in a variable when taking input with scanf() or outputting with printf ().
Examples are %c, %d, %f, etc. There are various differences between the format specifiers used by printf() and scanf(), which we will discuss. The format of this function is a string that begins with % and ends with a conversion character. It prints the character on standard output and returns the number of characters printed. Precision indicates the minimum and maximum characters in a string, the number of digits after the decimal place in a floating-point value, and the number of digits in an integer.
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where is the startup tab found in windows versions prior to windows 8
Prior to Windows 8, the list of startup applications could be found in the "Startup" tab of the System Configuration dialog box, which could be accessed by entering "msconfig" in the Start menu's Run dialog box. In Windows 8, the list may be accessed in Task Manager's "Start-up" tab.
What is a start-up tab in windows?The Startup tab displays all of the apps that are set to begin when Windows starts. This page displays a list of all the apps that are set to run when Windows begins. To learn more about any of the programs, simply right-click on the one you wish to learn more about.
The Windows startup folder is a unique folder on your computer that will launch any programs you set inside it when you boot up your computer. This allows you to run vital applications continuously without having to remember to do so.
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all of the following except one are necessary for a successful infection control evaluation program. the exception is:
Hand cleanliness Personal protective equipment usage (e.g., gloves, masks, eyewear). Coughing manners and respiratory hygiene. Sharps security (engineering and work practice controls).
Get the necessary vaccination. Always wash your hands. When necessary, keep a distance of at least 2 meters (6 feet) between you and people who aren't family members. Precautions for contact, droplet, and airborne transmission of infection standards. procedures for cleaning equipment and the surroundings as well as decontaminating people. Interdiction of contacts (if necessary) protection of those who have been exposed. As part of its evaluation of Departments of Veterans Affairs and Defense programs, GAO provided a list of 56 components that experts believed were essential for a successful hospital-based infection control program.
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does a non-context-free language exist that doesn't break any of the rules of the pumping lemma for context-free languages?
Finite languages (which are regular and so context free) follow the pumping lemma, whereas unbounded languages like recursive languages do not.
Languages do exist that are context-specific. Proof: (1) Context-free languages are countably infinite in number. This is accurate because there are an uncountably infinite number of descriptions of context-free languages, each of which has a finite length. If we create a context-free grammar that produces a language, then we may demonstrate that it is context-free. As an alternative, we could develop a language-aware pushdown automaton. On the other hand, we demonstrate that a language isn't context-free by using Ogden's lemma and the pumping lemma for context-free languages.
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you have been hired as a systems analyst by an online food delivering service. your job requires you to keep the network congestion free during peak hours and to ensure that important traffic can survive the congestion while less sensitive frames are discarded. which of the following techniques will you use in such a scenario?
Online food ordering is booming and has fundamentally altered how conventional eateries operate.
What is online food delivery system?The online order is the new innovation that has the potential to increase restaurant revenue, thanks to services like Swiggy, Zomato, and Food Panda.
In addition, the emergence of the "cashless economy" and the expansion of businesses specializing in meal delivery, often known as "cloud kitchens," have led to a considerable increase in online food ordering and consistent growth in the restaurant delivery service industry.
A poorly run delivery service, however, can seriously harm your brand's reputation. A bad ordering experience will also reduce the number of customers who visit your sit-down restaurant, which is why effective delivery management is essential.
Therefore, Online food ordering is booming and has fundamentally altered how conventional eateries operate.
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Describe the difference between alphanumeric and numeric values
Answer: Alphanumeric – field accepts only uppercase alphabetic characters and numbers from an international keyboard; all inputted text will be converted to uppercase. Multi-line Text - field accepts multiple lines of text. Numeric – field accepts only numbers and specific numeric data entry characters.
Explanation:
TRUE/FALSE CIDR allows huge provider blocks, with suballocation by the provider. this is known as provider-based routing.
It is true that CIDR allows huge provider blocks, with sub allocation by the provider. this is known as provider-based routing.
A technique for allocating IP addresses known as CIDR (Classless Inter-Domain Routing, also known as supernetting), which replaces the prior approach based on Class A, Class B, and Class C networks, increases the efficiency of address distribution.
The initial intent of CIDR was to reduce the quick expiration of IPv4 addresses and restrict the growth of routing tables on routers throughout the internet. As a result, there are now significantly more internet addresses available.
The pool of unassigned IPv4 addresses was depleted earlier than necessary due to inefficiencies in the internet's initial elegant network design. The elegant layout featured the following:
With more than 16 million IDs, Class A
Class C has 254 host identities while Class B has 65,535 identifiers.
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Why is it necessary to have a w-2 or 1099 form when using tax preperation software.
When preparing taxes, it is essential to have a W-2 and 1099 form in order to accurately calculate an individual's tax liability. These forms provide information such as wages, taxes withheld, and income from other sources that is necessary for tax preparation software to accurately compute an individual's taxes.
Why is it necessary to have a w-2 or 1099 form when using tax preparation software?W-2 and 1099 forms are necessary for tax preparation software because these forms provide essential information that is used to accurately calculate an individual's tax liability.
The W-2 form shows the wages and taxes withheld from an employee’s paycheck.While the 1099 form shows income from other sources, such as investments, rent, or self-employment.Using these forms, tax preparation software can accurately calculate the amount of taxes that an individual must pay.
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Answer: These Forms report income which needs to be used to file taxes
Explanation: I took the assessment
a partially filled array is normally used with an accompanying integer variable that holds the number of items that are actually stored in the array.
A partially filled array is typically used in conjunction with an integer variable that holds the number of items actually stored in the array.
What is Array?
An array is the collection of similar data-elements which are stored in the adjacent memory locations. It is a most basic data structure as each data element could be accessed directly by using only their index number.
For example, Incase we want to store some student's grades in let's take five subjects, we don't need to define for individual variables in each subject. Rather, you can define a array in which a data element is stored in contiguous memory locations.
Array of marks[5] defines the student's marks in all 5 different subjects, with each subject has marks located in the different locations in array, i.e., marks[0] denotes the marks scored in the first subject and the marks[1] denotes the marks scored in second subject and so on.
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Select the correct statement(s) regarding IPv6.
Answers: a. Increases IP addressing space to 128 bits
b. Supports quality-of-service (QoS) c. Simplifies datagram header
d. All of the above
Select the correct statement(s) regarding IPv6.
a. Increases IP addressing space to 128 bits
b. Supports quality-of-service (QoS)
c. Simplifies datagram header
d. All of the above
The correct answer is d. All of the above
About IPv6In short, IPv6 is the latest version of the internet protocol which serves to identify all the different devices that are on the internet.
Each device is distinguished by a unique IP address that allows these devices to communicate and access the internet.
Basically, the way IPv6 works is the same as giving a street address and postal code to a location so that other people can visit it.
IPv6 itself is a network layer protocol that performs data communication through data transfer between two nodes in a network (packet switching).
In fact, IPv6 aims to replace internet protocol version 4 which was once considered the backbone of the modern internet.
With today's rapid technological developments, IPv4 is no longer sufficient to support all devices on the internet.
The reason is, IPv4 is still using a 32-bit IP address system which only supports around 4.3 billion unique addresses until now.
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refers to a computing system that provides information technology infrastructure over a network in a self-service, modifiable, and on-demand.
A computing system that provides information technology infrastructure over a network in a self-service, modifiable, and on-demand is known as Rapid instructional design.
What is a Computing system?A computing system may be defined as a system of one or more computers and associated software along with common storage. Some common examples of computing systems may include mobile phones, keyboards, touchscreens, barcode scanners, touchpads, etc.
According to the context of this question, rapid instructional design may refer to a computing system that significantly provides software for a specific or more particular application along with the infrastructure of information technology over a network.
Therefore, rapid instructional design may refer to a computing system that provides information technology infrastructure over a network in a self-service, modifiable, and on-demand.
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Recall the Cash Register class developed in the textbook. What is output by the following code segment? from cashregister2 import CashRegister reg1 = CashRegister()reg2 = reg1reg1.addItem(3.00)reg1.addItem(5.00)reg2.clear()print(reg1.getCount())Question options0 1 2 The program terminates with a runtime error
When we will click on print(reg1.getCount()) we will get 2 as the output of the code in this program.
What is a program?A program is an organized sequence of instructions that a computer must follow in order to complete a task. The program in a modern computer, as described by John von Neumann in 1945, contains a one-at-a-time sequence of instructions that the computer follows. A storage space that the computer can access is typically where the program is placed.
Following the completion of the first instruction, the computer is given the next. The information that the instruction uses to run can also be stored in the memory or storage space. To operate on application or user data, a program specifies how to operate on a special type of data called a program.
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java if an int array is passed as a parameter to a method, which of the following would adequately define the parameter list for the method header?
(int[] a) will define adequately the parameter list for the method header, when in java, if an int array is passed as a parameter to a method.
What is Array in java?
In Java, an array is an object that holds elements of the same data type. Array element are also get stored in the single memory location. It is a data structure that stores similar elements. A Java array has a fixed number of elements.
Arrays in Java are index-based; the array's first element is stored at the 0th index, the second element at the 1st index, and so on.
An array is a dynamically generated class object in Java. Java array inherits the Object class, which implements the Serializable and Cloneable interfaces. In Java, we can use arrays to store primitive values or objects. We can also create single-dimensional or multidimensional arrays in Java.
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Business Strategy - End of Chapter Problem As part of its famous antitrust case, Microsoft economists estimated that the profit-maximizing monopoly price of a copy of the Windows operating system should be about $1,800 per copy. However, Microsoft was pricing its operating system at an average price of $40 to $60 per copy. Assume the low price for Windows was due to relatively low barriers to entry into the software market. Microsoft's pricing strategy was most likely designed to addressO the bargaining power of suppliers. O the threat of potential substitutes. O the threat of potential entrants. O the bargaining power of customers. O competition from existing competitors.
Microsoft was pricing its operating system at an average price of $40 to $60, contrary to the profit-maximizing monopoly price of $1,800 is most likely designed to address the threat of competition from existing competitors.
There are a few considerations on why Microsoft keeps its price points at $40 to $60:
In the beginning, Microsoft is believed to have set such a low price to entice independent developers and users so that it's become more acceptable. Yet, after the products had been accepted, Microsoft still did not raise the prices. The second consideration is that Microsoft is trying to hook the consumers with low prices to generate a network effect. But still, although Microsoft has been the market leader, the prices didn't go up. The third consideration is that with low prices, Microsoft can charge more for complementary additions to its products, such as Microsoft Office. But since the prices for Microsoft office for other operating system is higher than the original price, this argument is then considered not plausible.Therefore, the most suitable explanation for why Microsoft is keeping low prices is due to the threat of competition.
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Experienced students may serve as mentors if they are at least age 21 and have at least 3 years of post-secondary education. In cell L2. enter a formula using the IP and AND functions as follows to determine if Kay Colbert is eligible to serve as a mentor: a. The IF function should determine if the student's age is greater than or equal to 21 AND the student's post-secondary years are greater than or equal to 3, and should return the text Yes if a student meets both of those criteria or the text No if a student meets none or only one of those criteria.
According to the background material for the question, after typing the below Excel formula, the results are automatically obtained in the cell L2 as “Eligible”.
What is the explanation of the above?According to the background material for the question, the MS Excel spreadsheet contains the following information:
Column A: contains the student IDColumn B: contains the student's nameColumn C: contains student age Column D: contains post-secondary yearsColumn E: contains the base rateColumn F: contains classColumn G: contains finance certifiedColumn H: contains whether gradStudentColumn I: contains electedColumn J: contains the qualified driverColumn K: contains leadership trainingColumn L: contains mentor.The columns involved in the question are given as follows:
As a result, first, pick the L2 cell, then enter the following formula in the formula bar:
=IF(AND(C2>=21,D2>=3),"Eligible","Not Eligible")
After entering the formula below, the results are shown in cell L2 as "Eligible."
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which of the following methods is most appropriate to use to determine the number of different-colored components in a sample of black ink?
Chromatography is the appropriate response. Chromatography is a technique for dissolving components and separating them from one another.
The dye in black ink is a combination of two or three colors that are more soluble in water and rise faster, causing the colors to separate. The pigment colors are carried away by the water as it flows through the black ink. Some colors dissolve more easily in water and move up the paper with the water. Separating the components of a mixture so that you can see each one separately is referred to as chromatography. Black ink actually has a rainbow-like appearance.
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Which of the following is an advantage of software-defined networking (SDN)?
Is currently a new technology
Lack of vendor support
Standards are still being developed
More granular control
The option which represents an advantage of software-defined networking (SDN) is that it determines more granular control. Thus, the correct option for this question is D.
What is software-defined networking?Software-defined networking may be characterized as an approach to networking that effectively utilizes software-based controllers or application programming interfaces (APIs) in order to communicate with underlying hardware infrastructure and direct traffic on a network.
According to the context of this question, the most common advantages of SDN are traffic programmability, agility, and the ability to create policy-driven network supervision and implement network automation.
Therefore, more granular control is an option that represents an advantage of software-defined networking (SDN). Thus, the correct option for this question is D.
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jerry manages a number of linux servers that reside in different branch offices for his company. he needs a secure way to perform maintenance, check on the status of backups, and start and stop services without traveling to those offices. which of the following is jerry most likely to use? a. talnet b. HTTPS c. SSH d. NTP
SSH is jerry most likely to use. Hence, option C is correct.
What is linux servers?A Linux server is one that utilizes the free and open-source Linux operating system. It provides businesses with an affordable option for offering their customers information, apps, and services. Due to Linux's open-source nature, users also have access to a vast community of supporters and resources.
Several examples are the Linux server operating systems CentOS, Ubuntu Server, Gentoo, Debian, Slackware, and others. Linux is thought to be the best operating system for servers because no graphical user interface is necessary; all commands can be executed from a command line.
Thus, option C is correct.
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Which of the following links would be protected by WPA encryption?
A. Firewall to firewall
B. Router to firewall
C. Client to wireless access point
D. Wireless access point to router
The link that would be protected by WPA encryption is option D. Wireless access point to router.
Can an access point connect wirelessly to a router?An access point is a component that establishes a WLAN, or wireless local area network, typically in a workplace or sizable structure. An access point transmits a WiFi signal to a predetermined area after being connected to a wired router, switch, or hub via an Ethernet cable.
You need a broadcasting device to make that wireless signal available. Typically over Ethernet, a wireless access point connects to your router and uses wireless frequencies to communicate with your Ethernet-less devices.
Therefore, Some of the most significant differences between the two technologies are as follows: A router can provide both wired and wireless connectivity for a variety of end-user devices, whereas an AP primarily supports wireless devices like smartphones, laptops, and tablets. In essence, an AP adds wireless functionality to a wired network.
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Go to the Scenario PivotTable worksheet. Madhu wants to make the PivotTable easier to interpret. Remove the filter from the PivotTable. Use Total Revenue as the row label in cell B3, use Total Expenses as the row label in cell C3, and use Net Income as the row label in cell D3. Display the Revenue, Expenses, and Net Income values in the Currency number format with no decimal places. Display negative values in red, enclosed in parentheses. Resize columns B:D to their best fit using AutoFit.
Answer:
Click and drag the filter out of the "PivotTable Fields" so that is it empty IMG1. Change the row labels to what it tells you IMG2. Change the values as Currency format shown in the top right corner of IMG3. Select cells B4:D6 and press ctrl1 and match IMG4. Now double press the lines in between B&C, C&D, and D&E.
a website developer believes that a majority of websites have serious vulnerabilities, such as broken authentication or security misconfiguration. the website developer would like to test the claim that the percent of websites that have serious vulnerabilities is less than 30%. they decide to complete a hypothesis test at a 0.5% significance level. they sample 34 websites, and determine the sample percent to be 20%. the following is the data from this study: sample size = 34 website sample proportion =0.20 identify the null and alternative hypothesis by for this study by filling the blanks with correct symbols
When crucial security settings are either not implemented or incorrectly applied, there is a security misconfiguration.
What is security misconfiguration in Owasp?When crucial security settings are either not implemented or incorrectly applied, there is a security misconfiguration.By leaving the application and its data (and subsequently the organization itself) vulnerable to a cyber attack or breach, such failures create significant security vulnerabilities.Attacks that take use of application security misconfiguration flaws in online applications.Many apps provide essential developer functionality, such debug and QA features, which should be turned off during live production since they are extremely risky.Software bugs and configuration problems are both included in the NIST definition of vulnerability.Any flaws, mistakes, or gaps in the cloud environment that could endanger sensitive data and other important assets are referred to as cloud misconfiguration.To learn more about misconfiguration refer
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a web administrator notices a few security vulnerabilities that must be addressed on the company intranet. the portal must force a secure browsing connection, mitigate script injection, and prevent caching on shared client devices. determine the secure options to set on the web server's response headers. (select all that apply.)
The secure options to set on the web server's response headers are
HTTP Strict Transport Security (HSTS), Content Security Policy (CSP), Cache-Control.
How can HTTP Strict Transport Security HSTS be fixed?Go to Edge Certificates in SSL/TLS and disable HSTS. Enable HSTS is the option for HTTP Strict Transport Security (HSTS). Make 0 the Max Age Header value (Disable). Set the No-Sniff header to Off if you want to disable it after previously enabling it.Double-click the IIS section's HTTP Response Headers link in the web site pane. Choose Add from the actions pane. Fill up the Name box with the name of the custom HTTP header. Type the value for the custom HTTP header in the Value box.Lack of HSTS makes safeguards against cookie-hijacking, man-in-the-middle attacks, and downgrade attacks possible.To learn more about HTTP Strict Transport Security refer to:
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A user normally connects a laptop to a company's network using the laptop's internal wireless NIC. The laptop does not have an Ethernet port. The wireless network has failed, and the replacement part will take two days to arrive.
Which of the following solutions will connect the laptop to the company's wired network?
Enable a Bluetooth connection between the laptop and a computer that is connected to the network.
Use a USB-to-RJ45 dongle and connect to a wall jack with an Ethernet cable.
Transfer files using an external USB flash drive and then move the flash drive to a computer that is connected to the network.
Use a USB-to-Wi-Fi dongle to replace the laptop's internal wireless NIC.
Using a USB-to-RJ45 dongle and connecting it to a wall jack with an Ethernet cable is the best solution for connecting the laptop to the company's wired network in this scenario.
Connecting a Laptop Without an Ethernet Port to a Wired NetworkConnecting a laptop without an Ethernet port to a wired network can be a challenging task, especially if the wireless network has failed. In this scenario, the best solution is to use a USB-to-RJ45 dongle and connect it to a wall jack with an Ethernet cable. This solution provides a quick and easy way to connect the laptop to the company’s wired network, without having to wait for a replacement part.
This solution allows the laptop to connect to the wired network quickly, without having to wait for a replacement part. It also eliminates the need for additional equipment, such as a USB flash drive or a USB-to-Wi-Fi dongle.
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match the following items: group of answer choices ascii character set [ choose ] unicode [ choose ] extended ascii [ choose ] huffman encoding [ choose ] keyword encoding [ choose ] run-length encoding
ASCII character set will match with extended ascii, while huffman encoding will match to run-length encoding.
What is Huffman Coding?
Huffman coding is a data compression algorithm that is lossless. The idea is to assign variable-length codes to input characters, the lengths of which are determined by the frequency of corresponding characters. The most frequently occurring character is assigned the smallest code, while the least frequently occurring character is assigned the largest code.
Huffman Coding is a method of compressing data to reduce its size while retaining all of its details. David Huffman was the first to create it.
Huffman Coding is generally useful for compressing data with frequently occurring characters.
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