Since you have purchased a network-based ids. you have to deploy in demilitarized zone.
What is a server in a demilitarized zone?
An region that has been designated as a "demilitarized zone" by the parties to an armed conflict is one that they cannot occupy or use militarily.
Note that A demilitarized zone (DMZ or DZ) is a territory in which treaties or agreements between states, military powers, or opposing organizations restrict military installations, operations, or personnel. It serves as the exposed point to untrusted networks, typically the Internet. A DZ frequently located along a recognized border or border between two or more military alliances or powers.
Hence, A DMZ Network, often known as a "demilitarized zone," serves as a subnetwork that houses an organization's exposed, externally facing services in terms of computer security.
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you're evaluating a new system that uses security-enhanced linux to handle classified government information. what kind of access control model should you expect it to use? choose the best response.
Most common operating systems employ Discretionary Access Control (DAC)model.
What type of access control model does Linux system use?Traditional Linux security is built on a Discretionary Access Control (DAC) policy, which offers bare-bones defense against malware that is executing as a regular user or as root or against malfunctioning software.The only criteria for accessing files and devices are user identity and ownership.Most common operating systems employ Discretionary Access Control (DAC), a security concept that upholds security via ownership.A user has the ability to modify a file's read, write, and execute permissions if he owns it.Users have discretion over the data under this model.To learn more about Discretionary Access Control refer,
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data mining is used to explore large amounts of data, looking for hidden patterns that can be used to predict future trends and behaviors. a. true b. false
In order to uncover hidden patterns that can be utilized to forecast future trends and behaviors, data mining is used to examine enormous volumes of data. Let's say you excel at math and statistics.
If you want to become a data scientist, you will need to expand your skill set to include programming. Analyzing a vast amount of data to find patterns and trends is known as data mining. Large data sets are sorted through in data mining in order to find patterns and relationships that can be used in data analysis to help solve business problems. Enterprises can forecast future trends and make more informed business decisions thanks to data mining techniques and tools. Large amounts of data from various sources are centralized and consolidated in a data warehouse.
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Anyone have answers to 3.6 code practice on project stem, Python Fundamentals? Thanks in advance. Been struggling hard.
Actual Question:
Write a program to input 6 numbers. After each number is input, print the smallest of the numbers entered so far.
Sample Run
Enter a number: 9
Smallest: 9
Enter a number: 4
Smallest: 4
Enter a number: 10
Smallest: 4
Enter a number: 5
Smallest: 4
Enter a number: 3
Smallest: 3
Enter a number: 6
Smallest: 3
The program that prints the smallest each time a number is inputted is as follows:
myList = []
for i in range(6):
num = int(input("Enter a number: "))
myList.append(num)
myList.sort()
print(f"Smallest : {myList[0]}")
How to write the program?From the question, we have the following parameters:
Number of inputs = 6
Requirement = Print the smallest of the numbers entered so far
This means that we make use of iteration for a range of 6
Also, we need to make use of a list
So, the program in Python is as follows:
# initialize a list
myList = []
# Iterate to get 6 inputs and perform the required operations
for i in range(6):
# Get each input
num = int(input("Enter a number: "))
# Append input to a list
myList.append(num)
# Sort the list
myList.sort()
# Print the smallest
print(f"Smallest : {myList[0]}")
Note that comments are used to explain each line
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describe how to perform a removal from a hash table that uses linear probing to resolve collisions where we do not use a special marker to represent deleted elements. that is, we must rearrange the contents so it appears that the removed entry was never inserted in the first place.
We follow the following steps, to perform a removal from a hash table that uses linear probing to resolve collisions where we do not use a special marker to represent deleted elements. that is, we must rearrange the contents so it appears that the removed entry was never inserted in the first place:
Find and remove the desired elementGo to the next bucketIf the bucket is empty, quitIf the bucket is full, delete the element in that bucket and re-add it to the hash table using the normal means. The item must be removed before re-adding because it is likely that the item could be added back into its original spot.Repeat step 2.This technique keeps your table tidy at the expense of slightly slower deletions.
What is linear probing?
In computer programming, linear probing is a technique for dealing with collisions in hash tables, which are data structures for storing a variety of key-value combinations and locating the value corresponding to a particular key. When a collision happens in linear probing, we continue probing until an empty. Although linear probing is simple to compute, clustering is its biggest drawback. It takes time to look for an element or to find an empty bucket since it creates numerous consecutive items that clump together.
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which http request method will provide read access to the resources when setting the actions allowed
The HTTP request type known as GET allows for resource access. To read or retrieve a resource, we employ GET. When a GET request is successful, a response containing the data you requested is returned.
You can control access to AWS resources using permissions. IAM entities (users, groups, and roles) receive permissions; by default, these entities have no permissions. In other words, until you provide IAM entities the permissions you want, they are powerless in AWS. ACLs are cross-account permissions policies that give the designated principal permissions. Permissions cannot be granted to entities inside the same account by ACLs. Policy for sessions - When you use the AWS CLI or AWS API to act in the capacity of a role or a federated user, pass advanced session policies.
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Name three regions where the media is severely repressed. Select 3 options.
South America
Europe
Middle East
North America
Africa
The three regions where the media is severely repressed are options. C D and E:
Middle East North America AfricaWhat restrictions exist on media outlets' freedom of expression?In two circumstances—respecting the reputations or rights of others and defending public safety, public order, public health, or morals—are listed in the International Covenant on Civil and Political Rights, which establishes the right to freedom of expression.
Therefore, This issues includes the freedom to look for, receive, and share knowledge and ideas of any kind through any preferred medium, whether it is verbally, in writing, orally, in print. Only limits that are compliant with international human rights legislation may be imposed.
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so about computers can you tell me about bit coins and giga watts
Bitcoin is a decentralized digital money that may be purchased, sold, and exchanged whereas gigawatt hour is a measure of energy that equals one million kilowatt hours.
What is a Bitcoin?Bitcoin's creator, Satoshi Nakamoto, originally described the need for “an electronic payment system based on cryptographic proof instead of trust.” Digital currency known as Bitcoin is completely decentralized and not subject to bank or governmental regulation. Instead, cryptography and peer-to-peer software are employed. A public ledger, a copy of which is stored on servers throughout the world, records every bitcoin transaction.
What is a Giga Watts?1 Kilowatt hour [kWh] = 0.000 001 Gigawatt hour [GWh]
1,449 kilowatt hours (kWh) of energy to mine a single bitcoin.
0.001449 GWh
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how do containers access an operating system? containers use a shared base operating system stored in a cloud storage bucket. containers use a shared base operating system stored in a shared runtime layer
Containers access an operating system is option B:containers use a shared base operating system stored in a shared runtime layer.
Does Shared operating systems exist amongst containers?The host OS is shared by all containers, so they are not required to boot an OS or load libraries. This makes containers much lighter and more efficient. Applications that are containerized can start quickly, and compared to VM scenarios, many more instances of the application can be installed on the machine.
Note that without the traditional need for virtual machines, containers can share access to an OS kernel. Partitioning from the 1960s and chroot process isolation from Unix in the 1970s are the foundations of container technology.
Hence, Operating system virtualization is a technique used with containers. From a small software process or microservice to a more complex application, anything can be run inside of a single container.
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Jonah needs to add a list of the websites he used to his report. He opens the “Websites” document and copies the information. He now needs to change his view to the “Renaissance” report to add the information before saving his report.
The steps, in order, that Jonah needs to follow to view the "Renaissance" report are Go to the ribbon area, click on the View tab, Click on the Switch Windows tab. Then Click on the "Renaissance" report.
What is Renaissance?
The term "renaissance" refers to the use of style and art in the present. The term or option Renaissance is used in documents to add more art and style to an existing document in order to make it more appealing.
What is website?
A website is made up of many web pages, and web pages are digital files written in HTML. To make your website accessible to everyone on the planet, it must be stored or hosted on a computer that is constantly connected to the Internet. A Web Server is one of these computers.
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suppose a turing machine uses a one-sided infinite tape, but each tape cell is a stack (like an infinite amount of infinite stacks). writing to a certain position on the tape pushed the character onto the respective stack, reading pops the top-most character off the respective stack. is such a machine less, equally or more powerful than a regular turing machine?
The Turing machine is more powerful since the stacks allow us to compress the number of memory cells needed, thus the Turing machine is faster when it wants to access certain fields.
What is a Turing machine?
A Turing machine is an abstract machine that manipulates symbols on a strip of tape in accordance with a set of rules. A Turing model is the mathematical model of computation. A head that reads the input tape is what it consists of the Turing machine's state and is kept in a state register.
The model is straightforward, but it can implement any computer algorithm. Turing machines are straightforward, abstract computation tools designed to assist in examining the scope and bounds of what can be computed.
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you are designing a power apps web portal. you want to provide customers the ability to add or review requests for service. you create a table to store the data. you need to define the list of attributes for the table. what are two ways to define the list? each correct answer presents a complete solution.
The two ways to define the attributes for the table in PowerApps are with the use of:
Asterisk; and //slash-separated list. To add a list or a comment in a power app, use /* and enter the information, then close the comment with the same backslash and asterisk.What are PowerApps?Power Applications is a collection of apps, services, and connections, as well as a data platform, that enables quick development of bespoke apps for your company needs.
Canvas applications and Model-driven apps are the two basic categories of Power Apps. Previously, Power Apps Portals would have been classified as such. Since then, Microsoft has created Power Pages, a separate product derived from the capability of Power Apps Portals.
Power Applications is a service that allows you to create and deploy unique business apps that connect to your data and function across the web and mobile - all without the time and expense of conventional software development.
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les agrees to install a new hard drive and software on marilee's computer in exchange for four of her used textbooks. after he installs the hard drive, les says he won't install the software unless marilee gives him two more books. what legal position are the parties in now?
Marilee can sue for breach of contract, because Les had a preexisting duty to do all of the work.
What is hard drive ?
The physical device that houses all of your digital stuff is a hard disk. Digital stuff that is kept on a hard drive includes your papers, photos, music, videos, applications, application preferences, and operating system. There are internal and external hard drives.
What is software?
Software is a collection of instructions, data, or computer programs that are used to run machines and carry out particular activities. It is the antithesis of hardware, which refers to a computer's external components. A device's running programs, scripts, and applications are collectively referred to as "software" in this context.
What does running program means?
Double-click the executable file or the shortcut icon pointing to the executable file on Windows to start the program. If you find it difficult to double-click an icon, you can highlight it by clicking it once and then using the Enter key on the keyboard.
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Darius needs to include contact information in an email that he is sending to a colleague. Which option should he choose from the ribbon?
Attach File
Attach Item
Attach Policy
Attach Signature
Attach the Signature option should he choose from the ribbon. Thus, option D is correct.
What is email?An email has taken the place of all other ways of communication because it allows us to email quick attachments like images and even films, and we're able to do it from where ever using any tool we happen to possess at the time.
Before the signer's title comes one of several symbols used to identify a digital form of a signature that can be represented. This digital form weill help to evaluate who has to send the email to the colleague.
Therefore, option D is the correct option.
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in all but very rare cases, what must loops contain within themselves? group of answer choices nested decision strucures arithmetic operators nested loops a way to terminate
FOR LOOPS and WHILE LOOPS are two popular types of loops. While a While loop runs a fixed number of times, a For loop runs a variable number of times.
For Loop: A for loop is an iteration technique that works best when the number of iterations is known in advance. The initialization, expression, and increment statements always come after it. A test-at-the-bottom loop is another name for a guarded loop. A test-at-the-bottom loop is another name for an unprotected loop. The loop actions are always run at least once in an unguarded loop. A do while loop delays evaluating the condition until the end of the loop. As a result, a do while loop always runs at least once.
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when constructing the ethernet datagram to send the packet from router z to computer 2 which is on network c, what information needs to be in the destination mac address?
If a person is constructing the ethernet datagram to send the packet from router z to computer 2 that is on network c, the information that needs to be in the destination mac address is option A: Router Z's MAC address.
How does the host know the MAC address to include in the Ethernet header as the destination?The host node has an ARP cache, or routing table, that maps IP addresses to Ethernet addresses. The host node will issue an ARP request to find the MAC address that corresponds to its IP address if the MAC address is not already mapped to an entry in the ARP cache.
Note that a router is unaware of and unconcerned with a remote destination's MAC address. Within a directly linked network, MAC addresses are solely utilized for delivery in layer-2 segments like Ethernet.
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when constructing the ethernet datagram to send the packet from router z to computer 2 which is on network c, what information needs to be in the destination mac address?
Router Z's MAC address
Computer 2's MAC address
Computer I's MAC address
Router Y's MAC address
after a print file is generated by an application, what is the next step in printing to a network printer?
In printing to a network printer, the next step after a print file is generated by an application is the GDI (graphics device interface) integrates information about the print file with information received from the printer driver.
A network printer may be defined as printer that is connected to a network, through Ethernet or Wi-Fi - the latter being the more contemporary option. Meanwhile, a local printer would be cabled straight to the tool that needed it, a network printer can access through multiple tools simultaneously on the same network. A network printer can facilitate employees working from remote locations who still need to print. By connecting to the network using the Internet, employees can transfer documents to print from anywhere. Network printer is a great device for people who need to print from remote locations.
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what is the difference between stateful autoconfiguration and stateless autoconfiguration for ipv6?
A stateful DHCPv6 server gives hosts IPv6 addresses in addition to "other information."Additionally, it monitors how each assignment is progressing.
What does stateful and stateless configuration mean in IPv6?Stateless here refers to the fact that no server maintains track of which hosts have received which addresses and which addresses are still up for grabs.A stateful DHCPv6 server gives hosts IPv6 addresses in addition to "other information."Additionally, it monitors how each assignment is progressing. Some of the network administrator's chores are automated via stateless address auto configuration.The method used by IPv6 nodes (hosts or routers) to automatically configure IPv6 addresses for interfaces is known as stateless address auto configuration. The following kinds of auto-configuration are supported by IPv6:Auto-configuration with state:Since the installation and management of the nodes require a Dynamic Host Configuration Protocol for IPv6 (DHCPv6) server, this kind of configuration necessitates some amount of human involvement. Nodes use stateless DHCPv6 to obtain additional data, such as a DNS server list and a domain name, without the need for individual nodes to maintain any dynamic state.To learn more about ipv6 refer
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what is the 48-bit ethernet address of your computer? 2. what is the 48-bit destination address in the ethernet frame? is this the ethernet address of gaia.cs.umass.edu? (hint: the answer is no).
gaia.cs.umass.edu is Not a ethernet address. It is a 12-digit hexadecimal number that occupies 6 bytes.
What is an Ethernet Hardware Address?Your Ethernet card's individual identification is known as the Ethernet hardware address (HW Address).It is a 12-digit hexadecimal number that occupies 6 bytes (12 digits in hex = 48 bits). MAC addresses have a length of 48 bits.They are divided into two halves: the Organizationally Unique Identifier (OUI) formed by the first 24 bits and the serial number formed by the final 24 bits (formally called an extension identifier).An IP address is a 32-bit number that is typically displayed in dotted decimal format. This format displays each octet (8 bits) of the address in decimal format, with a period separating each value.To learn more about Ethernet address refer,
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gaia.cs.umass.edu is Not a ethernet address. It is a 12-digit hexadecimal number that occupies 6 bytes.
What is an Ethernet Hardware Address?Your Ethernet card's individual identification is known as the Ethernet hardware address (HW Address).It is a 12-digit hexadecimal number that occupies 6 bytes (12 digits in hex = 48 bits).MAC addresses have a length of 48 bits.They are divided into two halves: the Organizationally Unique Identifier (OUI) formed by the first 24 bits and the serial number formed by the final 24 bits (formally called an extension identifier).An IP address is a 32-bit number that is typically displayed in dotted decimal format. This format displays each octet (8 bits) of the address in decimal format, with a period separating each value.To learn more about Ethernet address refer,
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for a display of 1920 pixels by 1080 pixels at 16 bits per pixel how much memory, in megabytes, is needed to store the image?
For a display of 1920 pixels by 1080 pixels at 16 bits nearly needed 4 MB precisely (3.955) bytes to store the image.
How to calculate the file size for a digital image?Stage 1: Increase the locators number of level pixels by the quantity of vertical pixels to get the complete number of pixels of the finder.
Stage 2: Increase complete number of pixels by the piece profundity of the indicator (16 digit, 14 piece and so forth) to get the all out number of pieces of information.
Stage 3: Partitioning the complete number of pieces by 8 equivalents the document size in bytes.
Stage 4: Gap the quantity of bytes by 1024 to get the record size in kilobytes. Partition by 1024 once more and get the document size in megabytes.
Calculation : 1920 x 1080 x 16 x 8 / 1024 / 1024 = 3995 bytes.
= 4 Megabytes.
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Explain how the error card trick from the error detection lesson uses a parity scheme. Was it an even or odd parity scheme?.
The trick with the cards was the parity scheme as it added bits (row and column of other cards) to make each direction even, making it an even parity scheme.
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The required answer is the error card trick uses an odd parity scheme to detect errors in the sequence of bits represented by the deck of cards. The parity card, set based on the value of the data bits, helps identify whether an error has occurred by checking if the total number of bits with a value of 1 is odd or even.
The error card trick from the error detection lesson uses an odd parity scheme. In an odd parity scheme, an additional bit, called a parity bit, is added to a group of data bits. The parity bit is set in such a way that the total number of bits (including the parity bit) with a value of 1 is always an odd number.
In the error card trick, a deck of cards is used to represent a sequence of bits. Each card is assigned a value of 0 or 1, and the deck is arranged to form a sequence of data bits.
To implement the odd parity scheme, an additional "parity card" is introduced. The parity card represents the parity bit and is set based on the value of the data bits. If the total number of cards (including the parity card) with a value of 1 is even, the parity card is set to 1 to make the total odd. If the total number of cards with a value of 1 is already odd, the parity card is set to 0.
During the trick, the magician shows the deck of cards (including the parity card) to the audience and asks them to remember the sequence of bits. Then, the magician turns away and asks an audience member to secretly flip any one card, introducing an error into the sequence.
To detect the error, the magician checks the parity of the sequence. If the total number of cards with a value of 1 (including the parity card) is still odd, the magician knows that no error occurred. However, if the total number of cards with a value of 1 is now even, the magician can determine that an error has occurred. By revealing the flipped card, the magician can identify the position of the error.
By using the odd parity scheme, the error card trick effectively detects whether an error has occurred in the sequence of bits. If the parity of the bits is inconsistent, it indicates the presence of an error. This parity-based approach helps the magician identify the position of the error card and perform the trick successfully.
Therefore, the error card trick uses an odd parity scheme to detect errors in the sequence of bits represented by the deck of cards. The parity card, set based on the value of the data bits, helps identify whether an error has occurred by checking if the total number of bits with a value of 1 is odd or even.
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you are concerned that wireless access points may have been deployed within your organization without authorization. what should you do? (select two. each response is a complete solution.) answer implement an intrusion prevention system (ips). check the mac addresses of devices connected to your wired switch. implement an intrusion detection system (ids). conduct a site survey. implement a network access control (nac) solution.
Since you are concerned that wireless access points may have been deployed within your organization without authorization, the thing that you should do are option B and D:
Check the MAC addresses of devices connected to your wired switch.Conduct a site survey.Why would a wireless access point be used?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 region after being connected to a wired router, switch, or hub through an Ethernet cable.
An individual identification code known as a media access control address (MAC address) is given to a network interface controller (NIC) to be used as a network address in communications within a network segment. The majority of IEEE 802 networking technologies, such as Ethernet, Wi-Fi, and Bluetooth, frequently make use of this.
Note that a Media Access Control (MAC) address is a number that uniquely identifies each connected device on a network. A site survey is conducted with a Wi-Fi analyzer.
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What can go wrong when a program uses both > > and getline() to read input from the same file? group of answer choices getline() may end up with a blank line, because > > can leave a dangling newline in the input stream. >> may read only a newline and not the intended word, because getline() reads everything on a line except the final newline. nothing in particular can go wrong, just the usual programming pitfalls. >> reads only one word, while getline() reads an entire line.
Getline() may end with a blank line because >> can leave a dangling newline in the input stream.
cin >> leaves the new line character (/n) in the iostream . If getline is used after cin >> the getline sees this new line character as leading whitespace, thinks it is finished and stops reading any further.
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the cumipmt function has the syntax cumipmt(rate, nper, pv, start, end, type). what do you enter for the type argument?
Since the CUMIPMT function has the syntax CUMIPMT, the type that you can enter for the Type argument is option B and D:
b. Enter 0 if payments are made at the end of the period, or enter 1 if payments are made at the start. d. Enter the interest rate of the loan or investment.What is the CUMIPMT Function argument?The following arguments are used with the CUMIPMT function:
Rate is the amount of interest charged every period (necessary argument). The total number of payment periods for which the loan or investment must be repaid, Nper (necessary argument).
Pv (mandatory argument) - The Present Value of the loan or investment is represented by this. Start period is the initial period's number that must be used to calculate interest (mandatory argument). It must be an integer with a value between 1 and the given NPER.
Lastly, End period is the final time frame for interest calculations (mandatory parameter). It has to be an integer with a value between 1 and the given NPER. Type is a necessary argument that can either be 0 or 1. It is an integer that indicates if the interest is paid.
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The CUMIPMT function has the syntax CUMIPMT(Rate, Nper, Pv, Start, End, Type). What do you enter for the Type argument? a. Enter the starting and ending payment periods. b. Enter 0 if payments are made at the end of the period, or enter 1 if payments are made at the start. c. Enter the number of payment periods. d. Enter the interest rate of the loan or investment.
as an it leader in a fast growing technology start-up, which software development methodology would you implement to ensure your firm can make adjustments when necessary?
As an IT leader in a fast growing technology start-up, a software development methodology which you should implement to ensure your firm can make adjustments when necessary is agile.
The software development models.In Computer technology, some example of the models and methodologies that are typically used in the software development life cycle (SDLC) include the following;
Waterfall modelIncremental modelSpiral modelBig bang model.V-shaped model.Agile model.What is Agile software development?In Agile software development, the software development team are generally more focused on the production of working and active software programs with less effort on documentation, while ensuring that adjustments can be made when necessary.
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Complete Question:
As an IT leader in a fast growing technology start-up, which software development methodology would you implement to ensure your firm can make adjustments when necessary?
agile
v-shaped
ascending
spiral
waterfall
which type of nat allows many computers to share a pool of routable ip addresses that number fewer than the computers?
A pool of routable IP addresses which is smaller than the number of computers can be shared by several computers thanks to dynamic NAT.
What is dynamic NAT?A private IP address or subnets inside the SD-WAN network are mapped many-to-one to a public IP address or subnet from outside SD-WAN network through dynamic NAT. In the LAN segment, traffic from several zones and subnets is delivered over just a single public (outside) IP address instead of using trusted (inside) IP addresses.Dynamic network address translation makes it possible to automatically map inside local and outside global addresses, in contrast to static NAT, which always maps inside local and outside global addresses. A collection or pool of public IPv4 addresses is used by dynamic NAT for translation.A private IP address or subnet inside the SD-WAN network is many-to-one mapped to a public IP address or subnet from outside network via dynamic NAT.To learn more about dynamic NAT refer to :
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Assignment 4 divisible by 3 in project stem
Please help fast!
Using the knowledge of the computational language in python it is possible to write a code that print a list of the first 100 numbers wich is divide by 3 and 5 and not 7.
Writting the code:# create an empty list to store the numbers
numbers = []
# set n to start number 1
n = 1
# loop until the list contains 100 numbers
while len(numbers) < 100:
# current value of n is divisible by 3 and 5 but not divisible by 7, append n to numbers list
if n%3 == 0 and n%5 == 0 and n%7 != 0:
numbers.append(n)
n += 1 # increment n by 1
# display the numbers list
print("List of first 100 numbers divisible by 3 and 5, but not by 7:\n",numbers)
# end of program
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and assuming main memory is initially unloaded, show the page faulting behavior using the following page replacement policies. how many page faults are generated by each page replacement algorithm?
FIFO
// C++ implementation of FIFO page replacement
// in Operating Systems.
#include<bits/stdc++.h>
using namespace std;
// Function to find page faults using FIFO
int pageFaults(int pages[], int n, int capacity)
{
// To represent set of current pages. We use
// an unordered_set so that we quickly check
// if a page is present in set or not
unordered_set<int> s;
// To store the pages in FIFO manner
queue<int> indexes;
// Start from initial page
int page_faults = 0;
for (int i=0; i<n; i++)
{
// Check if the set can hold more pages
if (s.size() < capacity)
{
// Insert it into set if not present
// already which represents page fault
if (s.find(pages[i])==s.end())
{
// Insert the current page into the set
s.insert(pages[i]);
// increment page fault
page_faults++;
// Push the current page into the queue
indexes.push(pages[i]);
}
}
// If the set is full then need to perform FIFO
// i.e. remove the first page of the queue from
// set and queue both and insert the current page
else
{
// Check if current page is not already
// present in the set
if (s.find(pages[i]) == s.end())
{
// Store the first page in the
// queue to be used to find and
// erase the page from the set
int val = indexes.front();
// Pop the first page from the queue
indexes.pop();
// Remove the indexes page from the set
s.erase(val);
// insert the current page in the set
s.insert(pages[i]);
// push the current page into
// the queue
indexes.push(pages[i]);
// Increment page faults
page_faults++;
}
}
}
return page_faults;
}
// Driver code
int main()
{
int pages[] = {7, 0, 1, 2, 0, 3, 0, 4,
2, 3, 0, 3, 2};
int n = sizeof(pages)/sizeof(pages[0]);
int capacity = 4;
cout << pageFaults(pages, n, capacity);
return 0;
}
LRU
//C++ implementation of above algorithm
#include<bits/stdc++.h>
using namespace std;
// Function to find page faults using indexes
int pageFaults(int pages[], int n, int capacity)
{
// To represent set of current pages. We use
// an unordered_set so that we quickly check
// if a page is present in set or not
unordered_set<int> s;
// To store least recently used indexes
// of pages.
unordered_map<int, int> indexes;
// Start from initial page
int page_faults = 0;
for (int i=0; i<n; i++)
{
// Check if the set can hold more pages
if (s.size() < capacity)
{
// Insert it into set if not present
// already which represents page fault
if (s.find(pages[i])==s.end())
{
s.insert(pages[i]);
// increment page fault
page_faults++;
}
// Store the recently used index of
// each page
indexes[pages[i]] = i;
}
// If the set is full then need to perform lru
// i.e. remove the least recently used page
// and insert the current page
else
{
// Check if current page is not already
// present in the set
if (s.find(pages[i]) == s.end())
{
// Find the least recently used pages
// that is present in the set
int lru = INT_MAX, val;
for (auto it=s.begin(); it!=s.end(); it++)
{
if (indexes[*it] < lru)
{
lru = indexes[*it];
val = *it;
}
}
// Remove the indexes page
s.erase(val);
// insert the current page
s.insert(pages[i]);
// Increment page faults
page_faults++;
}
// Update the current page index
indexes[pages[i]] = i;
}
}
return page_faults;
}
// Driver code
int main()
{
int pages[] = {7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2};
int n = sizeof(pages)/sizeof(pages[0]);
int capacity = 4;
cout << pageFaults(pages, n, capacity);
return 0;
}
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In python, an infinite loop usually occurs when the computer accesses an incorrect memory address. True or false?.
Answer:
False
Infinite Loop in Python is a continuous repetitive conditional loop that gets executed until an external factor interfere in the execution flow, like insufficient CPU memory, a failed feature/ error code that stopped the execution, or a new feature in the other legacy systems that needs code integration.
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11.7 lab: exception handling to detect input string vs. integerthe given program reads a list of single-word first names and ages (ending with -1), and outputs that list with the age incremented. the program fails and throws an exception if the second input on a line is a string rather than an integer. at fixme in the code, add a try/catch statement to catch java.util.inputmismatchexception, and output 0 for the age.ex: if the input is:
Using knowledge of computational language in JAVA to write a code that given program reads a list of single-word first names and ages (ending with -1), and outputs that list with the age incremented.
Writting the code:import java.util.Scanner;
import java.util.InputMismatchException;
public class NameAgeChecker {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
String inputName;
int age;
inputName = scnr.next();
while (!(inputName.equals("-1"))){
try {
age = scnr.nextInt();
}
catch (InputMismatchException ex){
age = -1;
scnr.nextLine();
}
System.out.println(inputName + " " + (age + 1));
inputName = scnr.next();
}
}
}
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you are considering using wi-fi triangulation to track the location of wireless devices within your organization. however, you have read on the internet that this type of tracking can produce inaccurate results. what is the most important consideration for gett
Create a guest access WLAN that separates guest WLAN traffic from other clients on the same access point and uses open authentication.
The most frequent cause of failure is a lack of user knowledge of the policy's contents. Even the finest security policy can provide a false sense of security that puts crucial assets at risk if user education and enforcement are lacking. One of the most crucial best practices for wireless network security is using a strong password. A strong password consists of a minimum of eight characters, a mix of capital and lower-case letters, numbers, and symbols. To keep passwords secure, they should be changed frequently.
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