When using selection sort, it will 4 times longer in sorting a list of 63 elements compared to sorting a list of 7 elements.
What is a selection sort?An in-place comparison sorting algorithm in computer science is called selection sort. It performs worse than the equivalent insertion sort in general because it has an O(n2) time complexity, which makes it ineffective on large lists. In some circumstances, especially when auxiliary memory is constrained, selection sort, known for its simplicity, outperforms more complex algorithms in terms of performance.
The algorithm separates the input list into two parts: a sorted sublist of items that is built up from left to right at the front (left) of the list and a sublist of the remaining unsorted items that take up the remainder of the list. The unsorted sublist initially consists of the entire input list, while the sorted sublist is initially empty.
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define a function swapfrontend() that has an integer vector parameter passed by reference, and swaps the first and last elements of the vector parameter. the function does not return any value.
Answer:
#include <iostream>
#include <vector>
using namespace std;
void swapfrontend(vector<int> &v)
{
int temp = v[0];
v[0] = v[v.size() - 1];
v[v.size() - 1] = temp;
}
int main()
{
vector<int> v;
int num;
cout << "Enter numbers to be inserted in the vector, then enter -1 to stop.\n";
cin >> num;
while (num != -1)
{
v.push_back(num);
cin >> num;
}
swapfrontend(v);
cout << "Here are the values in the vector:\n";
for (int i = 0; i < v.size(); i++)
cout << v[i] << endl;
return 0;
}
marco travels often and does not have consistent wireless internet service. he frequently uses his mobile phone service to provide internet access to his tablet. which network type is marco using?
Macro is using the PAN network type.
Define the PAN network.
An individual's workspace can be connected to a computer network called a personal area network (PAN) by connecting electronic devices. Between devices like computers, smartphones, tablets, and PDAs, a PAN enables data transmission. PANs can be utilized for inter-device communication as well as for connecting to higher level networks and the Internet, with one master device acting as the gateway. A PAN can operate wirelessly or over wired interfaces like USB. A PAN carried over a cheap, short-distance wireless network technology, such as IrDA, Wireless USB, Bluetooth, or ZigBee, is known as a wireless personal area network (WPAN). A WPAN's range can be anywhere between a few centimetres and a few metres.
PAN is a type of network that often only covers a limited space, like a room. In contrast to LAN, which uses a network to connect computers over short distances, such as those found within a single building or a single computer lab with multiple computers, eales computing devices communicate with other adjacent computers and share information and data.
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______ are the most secure type of backbone because they enable ACL and other security measures to be applied at the switch level
The ability to apply ACL and other security controls at the switch level makes VLAN the most secure type of backbone.
What is a backbone architecture?The backbone architecture describes how the backbone connects the networks that are connected to it and controls how packets from one network go across the backbone to other networks.The backbone component known as the distribution layer that links the LANs together. The core layer joins many backbone networks, frequently between structures.Because each segment of the network connected to the backbone has its own subnet addresses that can be managed individually, a routed backbone provides the main benefit of clearly segmenting each component of the network connected to it.To learn more about Backbone architecture refer to:
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Paulo is working on the Access report, as shown below.
What is the first step that he should follow in order to show only the records for items that were sold for more than $1.99?
a. He should select the Price Paid field and right-click on it, then choose Number Filters.
b. He should go to the Design tab, click on Group and Sort, then click the Price Paid field.
c. He should go to the Arrange tab, click on Group and Sort, then choose Number Filters.
d. He should select the Price Paid field and highlight it, then click on the Filter tab.
The first step that he should follow in order to show only the records for items that were sold for more than $1.99 is option a. He should select the Price Paid field and right-click on it, then choose Number Filters.
How do I select numbers to filter in Excel?By choosing Data > Filter. Choose Text Filters or Number Filters before choosing a comparison, such as Between. After entering your filter criteria, click "OK."
Note that In the Sort & Filter group on the Data tab, select Filter, A list with filter options will appear when you click the arrow in the column header. Note Microsoft Excel shows either Text Filters or Number Filters in the list depending on the kind of data in the column.
Therefore, Filter by Selection: To use the datasheet view filter to select all the rows in a table that have a value that corresponds to the value that has been chosen in a particular row. To filter on multiple fields in a form or datasheet, or if you're looking for a specific record, use the "filter by form" option.
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TRUE/FALSE as with other programming languages, improper structure, syntax, or systems testing can cause scripts to negatively impact a machine.
Answer: false
Explanation:
A cell phone provider charges $69. 99 per month for unlimited phone calls plus 5 cents per text message. Which of these is the correct number sentence to describe the cost of the cell phone usage for 6 months and 350 text messages each of those months?.
The equation that is described the text is b. $69.99×6 + ($0.05 x 350 x 6) = $524.94. To determine the amount of value of the cell phone usage we can use linear equation.
Linear equation is equations of the first order. The linear equation is explained for lines in the coordinate system.
From the scenario, we know that a cell phone provider charges $69. 99 per month, plus 5 cents per text message. we convert 5 percent, then it will be 0.05. The cell phone is used for 6 months and 350 texts, then to calculate the total cost it can be written as below:
$69.99×6 + ($0.05 x 350 x 6) = $524.94
The option is missing. Here the complete option:
a $69.99 + ($0.05 x 350 x 6) = $174.99
b $69.99×6 + ($0.05 x 350 x 6) = $524.94
c $69.99×6 + ($0.5 x 350 x 6) = $1469.94
d $69.99 + ($0.05 x 350) = $87.49
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Insurance brokerage company uses a computer-based method of estimating the losses its clients will suffer if a severe storm or earthquake occurs. This method of estimating losses is called.
Answer:
catastrophe modeling
Explanation:
which encryption method in bitlocker prevents attackers from accessing data by booting from another os or placing the hard drive in another computer?
An encryption method in BitLocker which prevents attackers from accessing data by booting from another OS or placing the hard drive in another computer is: D. Full disk encryption.
What is encryption?In Computer technology, an encryption can be defined as a form of cryptography and it is a process that typically involves converting or encoding information in plain text into a code, known as a ciphertext.
Generally speaking, an information or data that has been encrypted can only be accessed and deciphered by an authorized user who has the right private or public key, depending on the encryption technique.
In Computer programming, some examples of encryption algorithms with a private or public key include the following:
3DESAESRC4RC5RSAIn conclusion, full disk encryption (FDE) is used in BitLocker to prevent attackers from accessing user data by booting from another operating system (OS).
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Complete Question:
Which encryption method in BitLocker prevents attackers from accessing data by booting from another OS or placing the hard drive in another computer?
Filesystem cryptography
Blockchain
GNU privacy guard
Full disk encryption
In the short-run, if P < ATC, a perfectly competitive firm should increase production to the output level at which P = ATC. continue producing at a loss. shut down. continue producing at a profit. There is not enough information to answer the question.
Answer:
P = ATC. continue producing at a loss. shut down. continue producing at a profit. There is not enough information to answer the question.:
it 342 hw 11 (100 pts each) describe how a page fault is handled? what are file attributes? what operations can be performed on files and directories? why are some distinct? compare and contrast sequential to direct access. how is a tree-structured directory different from a acyclic-graph directory?
In the Operating System, once the virtual address that produced the Page Fault is determined, it verifies that the address is genuine and makes sure there are no issues with protection or access.
The system checks to verify if a page frame is free if the virtual address is legitimate. The page replacement algorithm is used to remove a page if there are no empty frames.
Every file and directory has information called file attributes that contain additional details about the file or its contents. Like an On or Off state, they can only be in one of two states: Set or Cleared. Files, folders, volumes, and specific system objects can include attributes.
Various operations that can be performed on Files are Creating, Writing, Reading, Repositioning, Deleting and Truncating.The actions that can be taken on directories include searching, creating, deleting, listing, renaming, link and unlink.
Some operations are different for files and directories because of the way information are stored in them. The management of data on the disc is the responsibility of the file system. Files contain information, which are kept in directories (folders). A directory tree is created when directories store additional directories. The root directory of the entire filesystem is just /.
Access to each element must be made sequentially, starting at the beginning and going through each one one at a time. Any element may be directly accessed by using its index number or address to find it. There is direct access with arrays. CDs had direct access in the tree structured directories.
In a tree-structured directory, a directory's subdirectories or files may exist. Directories can be added or removed using specific system calls.
Sharing of directories or files is not permitted in a tree structure. Directories can exchange files and subdirectories on an acyclic graph, which lacks cycles.
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A forensics analyst is attempting a live acquisition of the contents of the memory of a running Linux device. In order to copy the blocked /dev/mem file with memdump or dd, the analyst must install a kernel driver. Recommend a framework that will enable the analyst to install a kernel driver.
Linux requires a small amount of RAM compared to other modern operating systems. You should have at least 8 MB, even though having at least 16 MB is highly recommended.
What memory of a running Linux device?To find out how much memory the computer has, run the Linux command cat /proc/meminfo. This command makes the data contained in the /proc directory's meminfo file available for viewing.
Therefore, MemTotal, which is given in the sample in bold, denotes the total amount of memory that will be exposed. The more RAM you have, the faster the system will work.
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we can only make valid predictions for y values within the bounds of the minimum and maximum of x values for a dataset. attempting to predict outside this range is called
We can only make valid predictions for y values within the bounds of the minimum and maximum of x values for a dataset. Attempting to predict outside this range is called extrapolation.
Since, by extrapolating beyond the range of existing data, we are making predictions based on limited assumptions or knowledge. Therefore, predictions made by extrapolation are often considered less reliable and valid than predictions made with data points within the range of existing data.
What are the limitations of extrapolation?Extrapolation relies on limited data points and can lead to inaccurate predictions.It assumes that the data points that are available are representative of the entire population.It assumes that the pattern or trend that is extrapolated will remain constant over time.Extrapolated predictions cannot take into account any changes in the environment or other factors that may affect the outcome.Extrapolation can lead to over-simplified or biased predictions.Learn more about the limitations of extrapolation:
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if a user's computer becomes infected with malware and used as part of a botnet, which of the following actions can be initiated by the attacker?
Having current copies of the encrypted files is important in case a user's PC is infected with malware and is utilized as part of a botnet.
Explain about the malware?Malware is a file or piece of code that can do almost whatever an attacker wants it to do. It is often distributed via a network. Additionally, there are countless ways to attack computer systems due to the wide variety of viruses.
Despite the fact that all malware is a form of computer virus, not all malware is a virus. Malware comes in many different forms, viruses being only one. Although many people use the two terms synonymously, technically speaking, viruses and malware are not the same thing. When you open or download attachments or files, go to a shady website, or both, malware may end up on your computer.
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which if statement is written properly? a)if (boolean expression): // code to execute // code to execute b)if boolean expression { // code to execute // code to execute } c)if(boolean expression) { // code to execute // code to execute } d)if boolean expression [ // code to execute // code to execute ]
If the code is properly constructed, then if(boolean expression) { // code to execute // code to execute } will be executed .
What is a boolean?
The Boolean data type in computer science (often shortened to Bool) is meant to represent the two values of logic and Boolean mathematics and can take one of two values (typically labelled true and false). It bears George Boole's name because he was the first to define an algebraic system of logic inside the middle of the nineteenth century. The Boolean data type is most often related to conditional, which enable various operations by altering control flow based on whether a programmer-specified Binary condition evaluates to true or false. It is a specific instance of a more general form of logical data; logic need be not Boolean (see probabilistic logic).
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WILL GIVE BRAINLIEST IF RIGHT Which of these is a NOT function in Python?
input
variable
print
round
The input function is not a NOT function in Python. The input function is a built-in function in Python that is used to read input from the user.
What are built-in functions?A built-in function is a function that is included in the core programming language, and that is available to the programmer without any additional installation or setup.
Built-in functions are typically provided by the language's standard library, and they are designed to perform common or fundamental operations. For example, in the Python programming language, some built-in functions include print, len, abs, max, and min.
These functions are available to the programmer by default, and they can be called directly from within the code.
Built-in functions can be very useful, as they provide a standard set of tools that are available in any Python environment, and they can save the programmer time and effort by providing common operations that are already implemented and tested.
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b. you are the chief security administrator in your enterprise. you are asked to train every employee, from top-level officers to front gate security officers, to make them aware of various security risks. which training technique should you use?
Gamification.
Using gamification techniques, a boring task can become a fun challenge. Games are a great way to motivate employees because they will focus their attention and actively participate in the activity. Use incentives and techniques for positive reinforcement to at the very least make sure your cybersecurity objective is accomplished. Gamification in the training program will motivate the participants to pay attention. Another definition of true gamification is a system of rewards that constructively reinforces learning.
What is Gamification?
Gamification is the use of game-design elements and game principles in situations that are not game-related. It can also be described as a collection of methods and procedures for resolving issues by utilizing or putting to use game mechanics.
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Which of these formulas uses relative cell references? A 5*10 B F18/2 C $A$10/100 D17+$D$1
Answer:
B F18/2
Explanation:
what is the full path and filename of the grub 2 file that is used for editing the default behavior of the bootloader menu?
The full path and filename of the grub 2 file that is used for editing the default behavior of the bootloader menu is etc/default/grub. The main configuration file to change menu display settings is known as grub and is located in the etc/default/grub.
The latest version of GNU GRUB is known as GRUB2. A bootloader has function as software to run when a computer starts. GRUB2 has main function to load and transfer control to the operating system kernel. The kernel is called Linux, in Fedora. GRUB2 regonize the similar boot functionality as GRUB1 but GRUB2 is also a mainframe-like command-based pre-OS environment and lets more flexibility during the pre-boot phase.
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the enp2s0 network interface has already been assigned the ip configuration 172.16.1.123/16. which command would you use to temporarily configure a second ip address of 192.168.0.123/24 for this network interface?
Individual network device software interfaces are managed by interface configuration (ifcfg) files.
In a specific ifcfg file, only one of the following directives should be used: DHCP HOSTNAME or DHCP FQDN. Only the latter is used if DHCP FQDN and DHCP HOSTNAME are both supplied. These files are used by the system at boot to decide which interfaces to start up and how to configure them. These files are typically identified by the term ifcfg-name, where name is the name of the device that the configuration file governs. By convention, the DEVICE directive's string value in the configuration file's own DEVICE directive serves as the suffix for the ifcfg file.
DEVICE=enp1s0\sBOOTPROTO=none
ONBOOT=yes \sPREFIX=24 \sIPADDR=10.0.1.27
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Network engineers have the option of using software to configure and control the network rather than relying on individual static configuration files that are located on each network device.
Which of the following is a relatively new technology that allows network and security professionals to use software to manage, control, and make changes to a network?
Software-defined networking (SDN)
TRUE. Network engineers have the option of using software to configure and control the network rather than relying on individual static configuration files that are located on each network device. SDN (Software-defined networking) is a relatively new technology that allows network and security professionals to use software to manage , control, and make changes to a network.
About Software-defined networking (SDN)SDN is a method or paradigm that separates the Control Plane and the Forwarding Plane. On traditional networks or non-SDN networks, the two functions above are in the same device. The Control Plane itself is the function of setting or controlling a network device, while the Forwarding Plane is the function of sending information packets.
If we quote the term from the SDxCentral Control Plane, we can liken it to a "brain" that manages data traffic, while the Forwarding Plane can be likened to a "muscle" which only functions to send packets to the destination according to the brain's request. So that even network settings are easier by using SDN
Facts and Needs of SDN Virtualization and Cloud: Hybrid network components and entities – between physical bare metal and virtual ones Orchestration and Scalability: The ability to orchestrate and manage thousands of devices through a single point of management Programmability and Automation: Ability to change network behavior and to be able to make these changes automatically (for example, troubleshooting capabilities, policy changes, etc.) Visibility: The ability to be able to monitor the network, both in terms of resources, connectivity and others. Performance: Ability to maximize the use of network devices, for example bandwidth optimization, load balancing, traffic engineering and others (related to Programmability and Scalability)Learn more about SDN at https://brainly.com/question/11058708.
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felicia is a network engineer deploying a virtual private network (vpn) solution. the vpn operates using secure shell (ssh). when asked by a new helpdesk tech about which layer of the osi model it employs, how does felicia answer?
Answer: 7
Felicia is a network engineer deploying a virtual private network (VPN) solution. The VPN operates using Secure Shell (SSH).
SSH refers both to the cryptographic network protocol and to the suite of utilities that implement that protocol. SSH uses the client-server model, connecting a Secure Shell client application, which is the end where the session is displayed, with an SSH server, which is the end where the session runs. SSH implementations often include support for application protocols used for terminal emulation or file transfers.
Present in all data centers, SSH ships by default with every Unix, Linux and Mac server. SSH connections have been used to secure many different types of communications between a local machine and a remote host, including secure remote access to resources, remote execution of commands, delivery of software patches, and updates and other administrative or management tasks.
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you administer a netbios-based network that uses the tcp/ip protocol. you are trying to troubleshoot a computer that is unable to contact a server by its netbios name. which command can you use to check the connection?
We can use nbtstat command to check the connection. in order to trying to troubleshoot a computer that is unable to contact a server by its netbios name.
A straightforward yet sophisticated command-line tool for tracing an IP packet's travel across one or more networks is called traceroute. The Windows implementation, known as "tracert," was initially created for UNIX-based platforms but is now present in most operating systems. One of the most popular networking tools for analyzing network issues is the ping command. The ping command can be used to check whether a networking device—typically a computer—on a network is accessible.
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(20) connecting math to programming choose one from the following two projects (if you have experience writing computer programs, please do the first one, otherwise, do the second one). you can look at solutions online to get ideas, but the work you turn in must be your own.
Using knowledge in computational language in C++ it is possible to write a code that connecting math to programming choose one from the following two projects.
Writting the code:#include<stdio.h>
long factorial(int n)
{
if (n == 0)
return 1;
else
return(n * factorial(n-1));aa
}
void main()
{
int number;
long fact;
printf("Enter a number: ");
scanf("%d", &number);
fact = factorial(number);
printf("Factorial of %d is %ld\n", number, fact);
return 0;
}
How do you find the factorial return of a number?Factorial of a positive integer (number) is the sum of multiplication of all the integers smaller than that positive integer. For example, factorial of 5 is 5 * 4 * 3 * 2 * 1 which equals to 120.
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how is the channelized t-1 rate of 1.544 mbps determined? a. 64 frames/second * ((24 ds0s/frame * 8 bits/ds0) * 1 fb) b. 8000 frames/second * ((24 bits/frame) 1 fb) c. 8000 frames/second * ((24 ds0s/frame * 8 bits/ds0) 1 fb) d. 64 frames/second * ((193 bits/frame * 8 bits/ds0) 1 fb)
The channelized T-1 rate of 1.544 Mbps is determined by 64 frames/second ((193 bits/frame 8 bits/DS0) + 1 FB).
What is a channelized T-1 rate?A channelized T-1 supports 24 DS0s; however, a T-1 frame only supports one byte of each DS0 supported. It is to be noted that the T-1 frame rate must be 8000 frames per second and it's frame length is 193 bits long.
A T1 line is a 1.544 Mbps synchronous digital transmission with certain signal characteristics. It is broken into 193 bits frames of 192 data bits + 1 framing bit. These frames occur at a rate of 8,000 per second. This equates to 1.536 Megabits per second.
Unchannelized T1 is a very new development. When T1, or Trunk Level 1, was introduced in the 1950s, it was intended to transport telephone traffic. Because each call is individual, the T1 frame was broken into 24 channels of 8 bits each.
Running at 8 Kbps, each channel has a capacity of 64 Kbps, which is sufficient for one toll-quality phone call. Using a T1 line in this manner is known as "Channelized T1."
Channelized T1 is still widely used today to connect several phone lines to a PBX system. It can replace up to 24 individual pairs of telephone cables. A single T1 line that combines all of those phone lines into a single four-wire connection is frequently significantly less expensive than operating them all individually.
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write an advertisement for a user support position. find one or more ads online or in your local newspaper for information technology and user support positions. note the format and content of a typical help wanted ad in the it field. select a user support description you find through an online search, and then write a classified ad that could be used to attract job applicants for the position whose description you selected.
The ways to write an advertisement for a user support position is given below
Choose the medium. You must first determine the media for which you will write your advertisement.Review the marketing materials of rivals.Determine who your audience is.Make up a headline.incorporate a hook.Use the second person.List a challenge.Offer a resolution.What exactly do you mean by promotion?An advertising, sometimes referred to as an advert or ad, is typically seen as a form of public discourse that supports a good, service, organization, or event.
Some people may view the phrase as going even further than that, encompassing any form of sponsored advertising intended to inform or persuade.
Lastly, some of its types are: Native advertising, mobile advertising, video advertising, display advertising, and more
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a malicious person is performing a technique called anti-forensics on a target network to hide evidence of an intrusion and conceal implanted rootkits and other malware. what is one action that might be taken when this method is used?
Answer:
Overwriting metadata
Explanation:
This is because the most appropriate technique that the attacker uses in a anti forensic is Overwriting the metadata, as this conceals all the previous activities that have been done by the attacker to hide the anti forensic.
if chooseactivity is a javascript promise object that returns a string value, which code should you use to initiate this promise?
if chooseactivity is a JavaScript promise object that returns a string value, the code you should use to initiate this promise is:
chooseActivity
.then(choiceMsɡ => console.log(choiceMsɡ))
.then(choiceMsɡ => console.log(choiceMsɡ));
What is JavaScript?When building websites, applications, servers, and even video games, web developers frequently use the lightweight programming language JavaScript to create more dynamic interactions.
Along with HTML and CSS, developers typically use JavaScript. In order to format HTML elements, the scripting language works well with CSS. User interaction is still maintained by JavaScript despite CSS's inability to do so.
It is worthwhile to learn JavaScript because it is used in the creation of websites, mobile applications, and video games. You can do this by using educational websites like BitDegree or by investigating free JavaScript applications and templates on websites that host source code, like GitHub.
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A company hosts a web application on an Amazon EC2 instance in a production VPC. Client connections to the application are failing. A SysOps administrator inspects the VPC flow logs and finds the following entry:
2 111122223333 eni-<###> 192.0.2.15 203.0.113.56 40711 443 6 1 40 1418530010 1418530070 REJECT OK
What is a possible cause of these failed connections?
A. A security group is denying traffic on port 443.
B. The EC2 instance is shut down.
C. The network ACL is blocking HTTPS traffic.
D. The VPC has no internet gateway attached.
The network ACL is blocking HTTPS traffic. And gathering broad information.
For usage details and additional information regarding the aforementioned commands, if necessary, see the operating system man pages and the IDS documentation. Execute the following commands, then gather the results: Run ps -elf several times for the client process on UNIX if it's still active. Run the client process's truss/trace on UNIX (if it's available). For some connections, a connection requires the use of a third-party API. Nothing more is necessary if the complete API has already been compiled in the connector. To use a map or process with some APIs, you must first install a client on the integration platform and connect to a server (usually a SQL engine) so that the connection can be made.
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this very slow wired technology uses the phone line; an inexpensive isp subscription should be the only additional cost, but you cannot connect to the internet and use your phone on the same line simultaneously.
Wireless wide area network (WWAN) technology is exemplified by Wi-Fi.
Computers, tablets, cellphones, and other devices can be connected to the internet using Wi-Fi.
Wi-Fi is a radio signal that is transmitted from a wireless router to a device nearby and converted into data you can see and use. The gadget sends a radio signal back to the router, which is wired or cabled into the internet.
Simply put, a Wi-Fi network is a wireless router that distributes an internet connection to a number of devices in a house or office. The router serves as a hub to distribute internet signal to all of your Wi-Fi enabled devices and is directly connected to your internet modem. As long as you're in your network's coverage area, this allows you the freedom to continue being online.
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you suspect that cache poisoning or spoofing has occurred on your network. users are complaining of strange web results and being redirected to undesirable sites. which log would help you determine what's going on?
A recovery facility known as a "cold site" may have electricity attached, but it lacks servers and high-speed data links.
For the majority of organizations, a cold site does not provide an adequate path to recovery. A full live mirror of the main site is known as a hot site. A network breach attempt by malicious actors is deterred by the deterrent control type. The likelihood that someone will attempt decreases as more deterrents are put in place. One of the most challenging logs to interpret is the one from a web server. However, you can determine the precise time and location of user logins using these logs. Logs of authentication are crucial to the security of a network.
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