Use the printenv command to display the values of environment variables. When the Name parameter is specified, the system only prints the value corresponding to the variable you asked for.
Libraries - Libraries are collections of ready-made code that programmers may incorporate into their programs. Asynchronous JavaScript with XML is referred to as AJAX. Due to the compelling user experience it offers, it has gained popularity quickly despite being built on a blend of already-existing Web standards like HTML, JavaScript, CSS, XML, and SOAP. The environment variables in the current shell are displayed using the printenv command-line tool. On the command line, we can specify one or more variable names to print only those particular variables.
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a firewall can do which of the following? (choose all that apply.) a. screen traffic for viruses. b. determine what user is sending transmissions. c. filter traffic based on rules. d. provide a layer of protection for the network.
By controlling network traffic, a firewall can assist in protecting your computer and data. By preventing undesired and unsolicited inbound network traffic, it does this.
By scanning this incoming traffic for any unwanted content like hackers and viruses that could infect your machine, a firewall verifies access. Firewalls are hardware or software devices that filter network traffic according to a set of rules. They are frequently characterized as host-based firewalls or network firewalls. While host networks are run on host computers, network firewalls filter traffic between two or more networks. In the OSI model's network layer (Layer 3), packet-filtering firewalls work. Firewalls with packet filtering make processing choices depending on protocols, ports, or network addresses.
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If a program needs to make a decision based on specific circumstances, the program code needs to contain
a
a loop
b
an "if" statement
c
debugging
d
logical reasoning
Answer: b
Explanation:
if public concern and interest in data security issues increased after a number of television and newspaper stories about "hacking," it would be an example of the media’s
If the general public concern and interest in data security issues increase after certain television and newspaper stories about hacking, it is an example of the media’s indexing power.
The indexing power of media is the capacity through which it influences the opinions, actions, and decisions of the general public. Media platforms such as television and newspapers are integral parts of today’s era that can influence the concerns and interests of the public almost about all things/matters by delivering the latest news and stories about them.
For example, when the news and stories relating to issues of ha-cking are delivered to the public through newspapers and television constantly, it makes people more concerned and interested in the security of their data when using the internet.
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problem 2 (38 points): write a c program to prompt the user to enter a number between 1 and 15462. the final goal is to display the individual digits of the numbers on a line with three spaces between the digits. the first line is to start with the right-most digit and print it five times; the second line is to start with the second digit from the right and print it four times, and so forth. in order to do that, you must first separate the digits. no conversion from string to integers is allowed, neither are arrays. for example, if 1234 is entered, the following should be printed: 4 4 4 4 4 3 3 3 3 2 2 2 1 1 0 then, write c code to accomplish a similar print, where the digits are displayed flush left and in order. again, the digits must be separated programmatically. no conversion from string to integers is allowed, neither are arrays. for example: 0 1 2 3 4 0 1 2 3 0 1 2 0 1 0
#include <bits/stdc++.h>
std::string f;
void fi(int d) {
std::cout << "First step:\n";
if(d<5) {
for(int i=5-d; i>0; i--) {
f.insert(0,"0");
}
}
for(int n=5;n>0;n--) {
for(int m=n;m>0;m--) {
std::cout << f.at(n-1) << " ";
}
}
std::cout << std::endl;
}
void se(int d) {
std::cout << "Second step:\n";
int n = 5;
if(d<5) {
for(int i=5-d; i>0; i--) {
f.insert(0,"0");
}
}
do{
for(auto const& m: f) {
std::cout << m << " ";
}
f.pop_back();
n--;
}while(n>0);
std::cout << std::endl;
}
int main(int argc, char* argv[]) {
std::cin>>f;
fi(f.size());
se(f.size());
return 0;
}
Which kind of GIMP tool is used for editing tasks such as cropping or rotating an image?
Question 8 options:
A) paint tools
B) transform tools
C) selection tools
D) miscellaneous tools
The kind of GIMP tool that is used for editing tasks like cropping and many more is selection tools. The correct option is C.
What is GIMP tool?GIMP is a cross-platform editing software that is readily accessible for GNU/Linux, macOS, Windows, and other platforms. Because it is free software, you are free to modify it and distribute your changes.
GIMP shines when it comes to photo enhancement and editing. It provides a comprehensive set of tools for correcting mistakes made during the capture process.
The purpose of selection tools is to select regions from the active layer so that you can work on them without affecting the unselected areas.
Thus, the correct option is C.
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you need to implement a wireless network link between two buildings on a college campus. a wired network has already been implemented within each building. the buildings are 100 meters apart. which type of wireless antennae should you use on each side of the link? (select two.) answer normal-gain directional high-gain bridge omni-directional
Since you need to implement a wireless network link between two buildings on a college campus, the type of wireless antennae should you use on each side of the link are option C and E. high-gain and Parabolic.
How does a parabolic reflector provide very high gain?High gain: Parabolic reflector antennas have a very high gain capability. The gain increases with the size of the wavelength "dish." High directivity: The parabolic reflector or dish antenna can offer high levels of directivity, just like it does with gain.
Gain is the volume of a signal at the input before it is amplified or processed by a computer. The signal is louder the higher the gain. For instance, you will need to increase gain if a microphone's sensitivity is low in order for the amplifier to amplify the sound louder.
Therefore, Two or more devices are connected over a brief distance using a wireless local area network (WLAN).
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See full question below
you need to implement a wireless network link between two buildings on a college campus. a wired network has already been implemented within each building. the buildings are 100 meters apart. which type of wireless antennae should you use on each side of the link? (select two.) answer normal-gain directional high-gain bridge omni-directional parabolic
What is utility software
Answer:
Explanation: Utility software is software designed to help analyze, configure, optimize or maintain a computer. It is used to support the computer infrastructure - in contrast to application software, which is aimed at directly performing tasks that benefit ordinary users.
While performing research for a school writing project, you discover a website that contains exactly the information you think will nicely round out your paper. Describe how you will incorporate the information into your project and the steps you will take to ensure you give proper credit to the author.
While conducting research for a school writing project, you locate a website that contains exactly the details you think will nicely round out your paper. The best way to incorporate the information into your project and the steps you will take to ensure you give proper credit to the author are
given as follows: You must ensure that you give credit in the following ways:
Introduce the author and or the title of the source; Cite the link; and Make use of footnotes at the end of the bibliography. Why significant to give recognition to an author whose text you have quoted?The law of copyright prevents an author's work from being duplicated without permission. To comply with this you must always credit the source. If you plagiarize a work, the author may sue you or you may fail your course.
Citations are vital because they assist others in finding the material you utilised. They contribute to the credibility of your own study. They relate your research to the research of other researchers.
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excluding $0.00, what is the minimum bi-weekly high rate of pay (please include the dollar sign and decimal point in your answer)? the code has been started for you, but you will need to add onto the last line of code to get the correct answer.
Given the last line of code stated in the question:
Select Biweekly _ high _ Rate
From salary _ range _ by _ job _ classification
ORDER BY LENGTH ( Biweekly _ high _ Rate ) ASC , Biweekly _ high _ Rate ASC ;
The minimum bi-weekly high rate of pay when we exclude $0.00 is stated below:
The SQL CodeSELECT
MIN ( Biweekly _ high _ Rate )
FROM salary _ range _ by _ job _ classification
WHERE Biweekly _ High _ Rate < > ' $ 0 . 00 '
ORDER BY Biweekly _ High _ Rate ASC ;
The given SQL code allows you to select the min Biweekly _ high _ Rate FROM the table Using WHERE < > ' $ 0 . 00 ' you are excluding values that are equal to zero.
Then you are ORDERING by the Biweekly _ High _ Rate to get the first value correct.
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you're configuring a failover cluster and want a quorum configuration in which cluster quorum data is located in a shared folder on a server in another location. which quorum configuration should you choose?
Quorum configuration should Node and File Share Majority.
What is Quorum?
A quorum is the minimal number of participants required to do business in a plenary session (a body that follows parliamentary process, such as a legislature). The necessity for a quorum provides protection against entirely unrepresentative action taken in the name of a body by an excessively small number of people, as according Robert's Rules of Succession Newly Revised. A plenum, in contrast, is a gathering of the entire (or, very rarely, almost entire) body. If a quorum is present, a body, meeting, or vote of it is quorate (or casts valid votes). The Latin word quorum, which means "of whom" and is the genitive plural of qui, "who," is the source of the Middle English phrase of the commission that was once given to justices of the peace.
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What is the output of the attached code? *
Square s1 = new Square (4);
Square s2 = new Square (4);
s1.setRadius (2) ;
System.out.println("The area is " + (s2.getLength()*s2.getLength (
O The area is 4
O The area is 2
The area is 16
O The area is 6
O The area is 8
explain what is meant by the term conditionally executed. 2. you need to test a condition and then execute one set of statements if the condition is true. if the condition is false, you need to execute a different set of statements. what structure will you use? 3. if you need to test the value of a variable and use that value to determine which statement or set of statements to execute, which structure would be the most straightforward to use? 4. briefly describe how the and operator works. 5. briefly describe how the or operator works. 6. when determining whether a number is inside a range, which logical operator is it best to use? 7. what is a flag and how does it work
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a type of database that is used for strategic analysis is called what? online transaction processing database online enterprise resource database online strategic resource database online analytical processing database
The type of database that is used for strategic analysis is called an online analytical processing database.
What do you mean by database?
A database is a structured collection of data that is stored and retrieved electronically in computing. Small databases can be kept on a file system, whereas large databases are kept on computer clusters or in the cloud. Database design encompasses both formal techniques and practical factors, such as data modelling, efficient data representation and storage, query languages, sensitive data protection and privacy, and distributed computing issues such as concurrent access and fault tolerance.
An OLAP database is an online database which is used to generate faster and more efficient reports and analysis than traditional databases. An OLAP database stores multidimensional cubes of aggregated data that may be analysed using numerous data properties.
So, D is the right answer.
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an attacker gained remote access to a user's computer by exploiting a vulnerability in a piece of software on the device. the attacker sent data that was able to manipulate the return address that is reserved to store expected data. which vulnera
A buffer overflow exploit resulted from the attacker's actions.
What is buffer overflow?
A buffer overflow, also known as a buffer overrun, is an anomaly in information security and programming that occurs when a programme, when writing data to a buffer, overruns the buffer's boundary and overwrites adjacent memory locations. Buffers are memory spaces set aside to keep data while it is being moved from one component of a programme to another or between applications. Buffer overflows are frequently caused by faulty inputs; if the buffer is established with the assumption that all inputs will be lower than a given size, then an unusual transaction that produces more data may lead it to write past the end of the buffer.
Attackers take advantage of buffer overflow flaws by overwriting an application's memory. This alters the program's execution route, resulting in a response that damages files or exposes confidential information.
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which event occurs in the long run? group of answer choices a restaurant hires another server. a new movie theater is built. an aircraft manufacturer adds another shift. a grocery store expands its hours of operation.
The movie theater is built event occurs in the long run because a new competitor enters the market.
A time frame when all cost and production parameters are movable is referred to as the long run.
What happens over the long run?
A time frame when all cost and production parameters are movable is referred to as the long run. Over time, a company will look for the manufacturing technique that enables it to deliver the desired amount of output at the most affordable price.
An economy's capacity to produce more goods and services over time is referred to as long-term growth. A nation's GDP is closely related to population growth in addition to price and supply and demand. (Must Read: Micro and Macro Economics' Differences) Take note: Growth in the Long Run
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hat is the function of the interpreter? translates and executes instructions at every runtime translates high-level language program into separate machine language program once programs that control and manage basic operations of a computer where a computer stores data used by a program python
During RUN Time, the interpreter changes the source code line by line. A program written in a high-level language is completely translated into machine code using interpret.
While a program is running, evaluation and change are permitted by an interpreter. Instruction by instruction, an interpreter converts code into machine code; the CPU executes each instruction before the interpreter continues on to the next instruction. When a problem arises, interpreted code will immediately display an error, making debugging it simpler than with compiled code. An interpreted language is one in which instructions are executed by implementations without first being translated into machine code. Computed programs execute more quickly than interpreted ones. The compiled program runs faster than the interpreted program.
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the memory architecture of a machine x has the following characteristics: virtual address 54 bits; page size 16 k bytes; pte size 4 bytes. assume that there are 8 bits reserved for the operating system functions (protection, replacement, valid, modified, and hit/miss- all overhead bits) other than required by the hardware translation algorithm. derive the largest physical memory size (in bytes) allowed by this pte format. make sure you consider all the fields required by the translation algorithm
The memory address space is 128 MB, so 227. However, each word is 8 (23) bytes, so there are 224 words. This means that log2 224 or 24 bits are required to address each word.
Therefore, each entry is at least 44 bits long (6 bytes if byte aligned, 8 bytes if word aligned). So each top-level page table is 256 * 6 = 1536 bytes (256 * 8 = 2048 bytes). Pages are typically between 512 and 8192 bytes, with 4096 being a common value. Page sizes are almost always powers of 2 for reasons explained below. The loadable module is also divided into several side frames. A page frame is always the same size as the page in memory.
A 128 x 8 RAM chip can be written as 27 x 8. Each RAM chip requires a 7-bit address.
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Help asap need to turn it in
Answer:
11. Firewall
12. True
13. True
Explanation:
As based on experience
write a java program that convert a positive number into a negative number and negative number into a positive number using switch statements
import java.util.Scanner;
class convertint {
public static void main(String[] args) {
Scanner f = new Scanner(System.in);
System.out.println("Enter a number to convert: ");
int s = f.nextInt();
int check = (s>0) ? 1 : (s==0) ? 0 : -1;
switch(check) {
case 1:
System.out.println(s*-1);
break;
case 0:
System.out.println("0");
break;
case -1:
System.out.println(s*-1);
break;
default:
;;
}
}
}
ou want to generate ssh keys for your user account and copy them to a remote computer to simplify future ssh authentication. what two commands can you use to perform these actions? (choose two answers.)
The two commands can you use to perform these actions are ssh-copy-id, ssh-keygen.
What is command?
A command in computing is a request to a computer programme to complete a specified task. It can be issued using a command-line interface, such as a shell, as input to a network service as part of a network protocol, or as an event in a graphical user interface triggered by the user picking an item from a menu. The term command is used specifically in imperative computer languages. The name comes from the fact that sentences in these languages are typically written in an imperative mood, which is common in many natural languages. If one considers a statement in an imperative language to be similar to a sentence in a natural language, a command is similar to a verb in such a language.
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a b -tree is to be stored on disk whose block size is 3096 bytes. the data records to be stored are 36 bytes, and their key is 4 bytes. determine the values for m and l for the b -tree. assume pointers are 4 bytes each.
NARA's technical research staff conducted a nationwide survey of federal agencies to identify existing optical digital data disc installations.
This data collection process provided a modern user experience and helped system administrators gather insight into their institutions' plans to adopt optical digital disc technology. Small systems are defined as systems with fewer than 20 optical digital discs, few image capture and user workstations, and no jukeboxes. In practice, smaller systems are often pilot projects that have not yet been fully scaled, or serve as research test platforms. Larger systems, on the other hand, typically store optical digital data discs in jukeboxes, use network communications to link multiple image processing and user retrieval workstations, and are equipped with high-speed image capture equipment.
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kristin's position in it focuses on using antivirus, anti-spyware, and vulnerability software patch management to maintain security and integrity. which it infrastructure domain is she protecting? question 2 options: user domain workstation domain lan domain lan-to-wan domain
She protecting LAN-to-WAN domain data link. Personal computers and workstations can share information, resources, and software thanks to the local area network, or LAN, which links network devices.
The process of providing and implementing software updates is known as patch management. These patches are frequently required to fix faults or errors (sometimes known as "vulnerabilities" or "vulnerabilities") in the software.
The technical framework that links a company's local area network to its wide area network is referred to as the LAN-to-WAN domain (WAN). Controlling network traffic between the private network, or LAN, and the public network, or WAN, is the key issue. For many enterprises, the LAN-to-WAN domain designates their connection to the Internet. There is a big risk associated with this link.
The configuration of devices in LAN-to-WAN security standards is frequently centered on preserving message and transaction integrity. Securing point-to-point connections is a crucial aspect of connectivity over the Internet.
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heuristics do not always yield an optimal schedule, but they are very capable of yielding aschedule for very complex networks with many types of resources.
Heuristics do not always provide an optimal schedule, but they are very capable of providing a good schedule for the sort of very complex networks with several types of resources.
The heuristics are rules of thumb used to make scheduling decisions about critical activities/tasks and the shortest duration activities/tasks so that the complex projects can be completed efficiently within the shortest possible time period.
Unfortunately, it is still a problem to find the optimal solution to schedule activities in many large and complex projects even with heuristics. It is because heuristics do not always provide optimal scheduling of tasks. But also it cannot be denied that heuristics yield possibly good schedules for the range of complex network problems.
To schedule the tasks of complex problems, heuristics are developed to obtain an optimal or near optimal schedules with minimum computational time and resources.
Complete question is:
“heuristics do not always yield an optimal schedule, but they are very capable of yielding a __________ schedule for very complex networks with many types of resources.”
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walkthroughs combine observation, inspection, and inquiry to assure that the controls designed by management have been implemented. question content area bottom part 1 true false
True, walkthroughs combine observation, inspection, and inquiry to assure that the controls designed by management have been implemented.
What is a walkthroughs?
A walkthrough is a term in internal control used to describe a situation whereby the auditor selects one or a few document(s) for the initiation of a transaction type and traces them through the entire accounting process using a combination of observation, inquiry, and inspection to assure that the controls designed by management have been implemented. Auditing standards require the auditor to perform at least one walkthrough for each major class of transactions
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star technology is working on a project that needs a communication mode specializing in encryption, where only authorized parties should understand the information. the company also requires accuracy, completeness, and reliability of data throughout the project. the company has contacted you for an ideal cipher mode solution without using a counter. which mode should you suggest?
Block-chaining cipher (CBC) In cipher block chaining mode, the plaintext of one block is encrypted by using an exclusive or (xor) operation to join it with the ciphertext of the preceding block.
The AES's first generation is essentially represented by the ECB (Electronic Codebook). This type of block cipher encryption is the most fundamental. An enhanced type of block cipher encryption is called CBC (Cipher Blocker Chaining). Each ciphertext block processed in CBC mode encryption depends on all plaintext blocks processed prior to it. The main distinction between CFB mode and CBC mode is that CFB is a stream mode. When utilized in stream modes, feedback—also known as chaining—is used to break patterns. Similar to CBC, CFB employs an initialization vector, obliterates patterns, and causes errors to spread.
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Fred tells you that he is finally getting rid of his old computer. He has some sensitive information on it, and since you seem like someone who knows about IT, he asks you what he should do with it. What would you recommend?
Throw it in a Dumpster.
Erase the hard drive.
Write over the hard drive.
Give it away to a trusted friend for safekeeping.
Answer:
write over the hard drive, then physically destroy it (e.g., drill holes in it).
Explanation:
This minimizes the possibility for data recovery.
a type of memory that can hold data for long periods of time, even when there is no power to the computer, is called .
A type of memory that can hold data for long periods of time, even when there is no power to the computer, is called secondary storage.
What is computer?
A computer is a digital electrical machine that may be programmed to automatically perform arithmetic or logical operations (computation). Programs are generic collections of operations that modern computers can do. These programmes allow computers to do a variety of jobs.
ROM is a sort of non-volatile memory, which implies that the data contained in it persists even when no power is applied to it, such as when the computer is turned off. In this regard, it is analogous to secondary memory, which is utilised for long-term storing.
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Some experts believe that the internet is a vulnerable resource. Describe some significant ways your life would change if the internet as we know it ceased to exist.
Some of the significant ways one's life could be altered if the internet as we know it today ceased to exist are:
One there would be serious disruptions in the world's economy because a lot of banking and financial systems are not wired over the backbone of the internet.It would also affect aviation, there would be canceled flights, and transportation systems would be seriously affected for the same reason stated above.Perhaps the worst of it all would be that information flow will be stifled.What is the internet?The Internet comprises a vast network that links computers all over the world. People can interchange information and talk over the Internet from anywhere with an Internet connection.
The Internet is made up of technology created by many individuals and organizations:
Robert W. Taylor, who directed the creation of the ARPANET (an early version of the Internet), andVinton Cerf and Robert Kahn, who invented the Transmission Control Protocol/Internet Protocol (TCP/IP) technology, are important people.Learn more about the Internet:
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Masks can be:
Question 6 options:
any color.
black, white, or gray.
black or white.
warm or cool.
Answer:
last answer
Explanation:
Which statements serve as evidence that supports the theme of "The Story of the Fisherman
The statements that serve as evidence that supports the theme of "The Story of the Fisherman" are:
A. “I conjure you on your honour to tell me if you really were in that vase?”
B. “How could your whole body go in? I cannot believe it unless I see you do the thing.”
E. “‘No,’ answered the fisherman, ‘if I trust myself to you I am afraid you will treat me as a certain Greek king treated the physician Douban.’”
What is the story of the fisherman?The fisherman's tale is that there once was a fisherman who was so old and so indigent that he could hardly provide for his wife and three children. He set a rule not to throw his nets more than four times each day and left very early for fishing each day. He set out one morning during the full moon and arrived at the seashore.
The lesson does the tale of the fisherman and the fish teach us is that you are still better than nothing at all, no matter how small you are. A modest victory is more valuable than a huge promise.
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Which statements serve as evidence that supports the theme of "The Story of the Fisherman"? Check all that apply. "I conjure you on your honour to tell me if you really were in that vase?" "How could your whole body go in? I cannot believe it unless I see you do the thing." "I rebelled against the king of the genii. To punish me, he shut me up in this vase of copper." "The fisherman was very unhappy. ‘What an unlucky man I am to have freed you! I implore you to spare my life.'" "‘No,' answered the fisherman, ‘if I trust myself to you I am afraid you will treat me as a certain Greek king treated the physician Douban.'"