Which OSI layer provides switching and routing technologies?
A. Application
B. Network
C. Physical
D. Transport
Answer: The correct answer is B. Network
Explanation: The network layer of the OSI provides switching and routing support through network layer protocols.
why is graphics important in our life
Answer:
The quality of said graphics in technology allow us to see photos in high quality never seen before.
Explanation:
4.19 write an if/else if statement that carries out the following logic. if the value of variable quantityonhand is equal to 0, display the message "out of stock". if the value is greater than 0, but less than 10, display the message "reorder". if the value is 10 or more, do not display anything.
A logical conditional expression, the if/else statement tests a condition and only runs the block of code below it if the condition is true.
If a certain condition is true, the if/else statement causes a block of code to be executed. Another block of code can be run if the condition is false. The "Conditional" Statements in JavaScript, which are used to carry out various operations depending on various conditions, include the "if/else" statement. A programming conditional statement known as a "if" performs a task or displays data if it is verified to be true. Here is a broad, non-programming language-specific example of an if statement.
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create a java program that creates 25 random 4 digit numbers and adds them to an array. once the array has been populated then sort the array using a bubble sort algorithm.
A language for object-oriented programming is Java. The classes and objects in Java, along with their characteristics and methods, are the foundation of everything. For instance, an automobile is an object in the actual world.
The car contains characteristics like weight and color, as well as functions like drive and brake. Without the need for additional software, Java code can run on any computer that has the JVM installed. Because of their ability to "write once, execute anywhere," Java developers may more easily collaborate and disseminate ideas and applications. Java is an object-oriented, well-structured language that is accessible to beginners. Since many procedures run automatically, you can become proficient in it rather quickly. Primitive data types, which include byte, short, int, long, float, double, boolean, and char, are separated into two classes.
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joe wants to allow guests to use his organizations wireless network by providing a preshared key. what solution can he deploy to allow users to access his open network?
A communications protocol called ANT+ was created to make it simple to link fitness sensors like cycle computers and heart rate monitors.
AES encryption with a 128- or 256-bit key is used to encrypt whole drives with Bitlocker, a popular Windows-only program. Bitlocker cannot produce encrypted containers, in contrast to TrueCrypt and VeraCrypt. Partitions must be encrypted in their entirety. The ideas of risk management, threat modeling, the security model, security governance principles, business continuity needs, and policies and procedures are all covered in the domain of security and risk management.
The most secure VPN protocol is OpenVPN. It works with a variety of ciphers for encryption, including AES-256, Blowfish, and ChaCha20. It is supported by nearly every VPN service natively and has no known vulnerabilities.
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assuming that inputfile is a scanner object used to read words from a text file, select an expression to complete the following code segment, which counts the number of words in the input file.
A Scanner object may read a text file. Utilizing the methods included with the Scanner class is a benefit of utilizing the Scanner.
To guarantee that the file is closed, the application should define the Print Writer variable in a try-with-resources statement. Leading and trailing spaces are removed by the built-in Java String function trim(). The space character's Unicode value is "u0020." Java's trim() function looks for this Unicode value before and after the text, removes any spaces if they are present, and then returns the string that was omitted. The exception produced inside the try block will be propagated up the call stack if it occurs both inside the try-with-resources block and when a resource is closed (when close() is used).
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you have an azure subscription that includes a network security group named nsg1. you plan to add an inbound security rule named rule1 to nsg1. you need to configure a priority for rule1. rule1 must have the highest priority for inbound security rules in nsg1. which priority should you configure for rule1?
From the information given about Azure, you need to set the configuration for rule 1 to the highest priority for inbound security rules in NSG1.
What is Azure?Microsoft Azure, sometimes known as Azure, is a cloud computing service provided by Microsoft that allows for application administration through Microsoft-managed data centers.
Microsoft Azure (previously Windows Azure) is the company's public cloud computing platform. It offers a wide range of cloud services, such as computation, analytics, storage, and networking.
It enables you to access and manage Microsoft cloud services and resources. These services and tools include storing and converting your data according to your needs.
The Azure Firewall has three different types of rules.
NAT RegulationsNetwork Regulations.Application Guidelines.Your security group's incoming rule must allow traffic on all ports. This is required because the destination port number of any inbound return packets is set to a randomly assigned port number.
To establish an inbound security rule in Azure, follow these steps.
Choose a new network security group.From the left menu, choose Inbound security rules, then Add.You can restrict the Source and Source port ranges as desired, or leave them as is.You can specify a specific destination or leave the default of Any.Learn more about Azure:
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a customer needs to look up tips for proper machine use in the user guide for their product. they do not know where to find the user guide. where should you tell them to look?
A task-oriented document is a user manual or guide. It includes operating and maintenance instructions as well as technical descriptions, drawings, flowcharts, and diagrams.
Even though instructions on how to use or repair a product are documented, it might not always suit the intended purpose. A user handbook, often referred to as a user guide, is designed to help users use a specific good, service, or application. Typically, a technician, a product developer, or a member of the company's customer support team will write it. Because of this, nonvolatile memory—which retains its data even if a computer's power is switched off or a storage device is unplugged from a power source—is frequently employed in conjunction with RAM. Additionally, unlike some volatile memory, nonvolatile memory does not require periodic content refreshment.
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recitative is... group of answer choices sung in rhythm of ordinary speech with many words on the same pitch a recital a dramatic, serious, or tragic opera the text(lyrics) of an opera
Rather than emphasizing melody or musical motives, recitative monody (accompanied solo song) stresses and even imitates the rhythms and accents of spoken language.
Recitative, which is based on oratory, emerged in opposition to the polyphonic, or multi-voiced, style of 16th-century choral music in the late 1500s. Singing that is repetitive is more similar to speech than song. Opera and oratorio employ it to advance the plot. An illustration of recitative from the movie Juan, which is based on Wolfgang Amadeus Mozart's 1789 opera "Don Giovanni." A counterpoint to this style of singing is an aria. Since recitative frequently follows speech patterns, the rhythm in R&R alludes to speech rhythm.
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aisha is the systems administrator for a hospital system's large database. which pathway in the information technology career cluster does aisha's career fall into? question 3 options: network systems information support and services web and digital communications programming
network systems information support pathway in the information technology career cluster does aisha's career fall into.
You need a combination of appropriate certifications, an associate's degree or a bachelor's degree in computer science, information science, or a related branch of study to work as a systems administrator.
Web administrators are included in what path?
You require an associate's or bachelor's degree in web design, information technology, or computer science to start a career as a web administrator, while some organizations may consider applicants with substantial expertise in online design and software.
The minimum educational requirements for site administrators range from a high school diploma to a bachelor's degree, but an associate's degree in web design or a closely related discipline is the most typical. A bachelor's degree in a discipline linked to computer science is necessary for more technical professions.
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why is it so common in internet protocols that clients speak before servers do? (in other words, what would be an important advantage of having a client speak first, or, thought differently, an important disadvantage of having a server speak first instead?)
Answer:
The client will send a request through the API with the TCP protocol, which the server then receives and delivers your request. This makes sure a connection is established. This is the standard quota for all web pages!
Explanation:
Hope this helps you out!
while on a call to service a poweredge server, the reported issue is intermittent. the ability to stream real-time events and data logs is instrumental in diagnosing the problem. to successfully stream real-time metrics, the customer must have the correct idrac license installed. which one of the idrac licenses enables this feature?
The Datacenter license is the most recent iDRAC9 license that enables this features. The iDRAC performs similar duties as the iLO (if you are familiar with HPe ProLiant servers).
The integrated Dell Remote Access Controller, 9th generation (iDRAC 9) is a dedicated systems management chip found in all Dell EMC PowerEdge servers. The iDRAC performs similar duties as the iLO (if you are familiar with HPe ProLiant servers). In order to control the lifetime of the PowerEdge server even while it is off-line, iDRAC offers a secure out-of-band, agent-less connection.
Additionally, it enables administrators the ability to do remote management operations like monitoring, managing, upgrading, troubleshooting, and remediation through both an HTML 5 GUI online interface and a command line interface.
Additionally, iDRAC makes it possible to link to additional datacenter management tools from Dell Technologies, such as OpenManage Enterprise and OpenManage Integration for VMware vCenter. A user can manage the PowerEdge server's lifecycle even when it is off thanks to iDRAC's secure out-of-band, agent-less connectivity.
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error message click funnels no such plan: 'price 1lrabvj7zq54iqcjdwryec4g'; a similar object exists in live mode, but a test mode key was used to make this request.
Additionally, Stripe makes it simple to create subscription and recurring payment arrangements. We only need to visit your Stripe account, select "Products," and then click "Add a product." Make a personalized recurring pricing strategy.
A payment term, also known as a term of payment, is a document that specifies how and when our clients will pay you for your goods or services. The terms of payment specify how and when customers must make payments as well as any potential consequences for late payments. An order bump is a method of adding an extra product during the checkout process. The consumer can add the extra goods to their order with only one click thanks to the order bump offer, which is displayed right on the checkout page.
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if they run the tool again (but still with the destination ip address for code.org), in what way could the next packet's path be different? ????️note that there may be multiple answers to this question.
Answer:
Explanation:
stay the same
move
verilog code with comments for the 2:4 binary decoder, the 4:2 binary encoder, and the 4:2 prior- ity encoder. do not use behavioral verilog for these descriptions! use the structural and dataflow concepts introduced in the previous lab.
The Verilog code is /* 4 to 2 priority encoder */
Data flow description is given below:
module two_four_decoder (
input wire [1:0] w, input wire En, output wire [3:0] y);\\input output declaration
assign y[0]= (En & (~w[1] & ~w[0]));\\y0=1 when w1 and w0 are 00;
assign y[1]= (En & (~w[1] & w[0]));\\y1=1 when w1 and w0 are 01
assign y[2]= (En & (w[1] & ~w[0]));\\y2=1 when w1 and w0 are 10
assign y[3]= (En & (w[1] & w[0]));\\y3=1 when w1 and w0 are 11
endmodule
/* 4 to 2 encoder*/
module four_two_encoder(input wire [3:0] w, output wire [1:0] y, output wire zero);
assign y[1]=w[3] | w[2];
assign y[0]=w[3] | w[1];
assign zero= w[3] | w[2] | w[1] | w[0];
endmodule
/* 4 to 2 priority encoder */
module priority_encoder(input wire [3:0] w, output wire [1:0] y, output wire zero);
assign y[1]=w[3] | w[2];
assign y[0]=w[3] | (~w[2] & w[1]);
assign zero= w[3] | w[2] | w[1] | w[0];
endmodule
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what type of mis infrastructure identifies where and how important information, such as customer records, is maintained and secured? multiple choice virtualized sustainable information agile
The location and methods used to retain and secure vital data, including customer records, are identified by the information MIS infrastructure.
The hardware, software, and communications tools that make up an agile MIS infrastructure provide the underpinning support for the objectives of the firm. An Agile MIS Infrastructure is a network of hardware, software, and communication tools that facilitates the sharing of information and resources among the many teams inside a company. A single instance of the program and its auxiliary infrastructure that serves several clients is known as multi-tenancy. Grid computing, cloud computing, and virtualization are components of a sustainable MIS infrastructure.
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what are the three main steps that routers that use a distance vector routing protocol (e.g., rip) perform to keep their routing tables up-to-date?
A specified destination, a metric (the shortest distance to the destination), and the following hop on the shortest path from the current router to the destination are all included in each item in the table.
This is how distance vector routing operates. A routing table is kept by each router. A router is required by a distance-vector routing (DVR) protocol to periodically notify its neighbors of topological changes. The previous ARPANET routing method was known as (or known as Bellman-Ford algorithm). The Border Gateway Protocol is a distance-vector protocol created for wide area networks (WANs) (BGP). Since BGP is an external gateway protocol, border and exterior routers on the Internet use it. Through a Transmission Control Protocol (TCP) session, it communicates data between routers.
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what is the most used command to test connectivity between 2 computers? ipconfig traceroute host ip address ping host ip address tracert host ip address
The most used command to test connectivity between 2 computers is ping host IP address.
What is IP address?
An Internet Protocol address (IP address) is a numerical label that identifies a computer network that employs the Internet Protocol for communication. An example of such an IP address is 192.0.2.1.Identification of the network interface and location addressing are the two primary purposes of an IP address. A 32-bit number is what the Internet Protocol version 4 (IPv4) designates as an IP address. However, a new version of IP (IPv6), utilising 128 bits again for IP address, was established in 1998 in response to the expansion of the Internet and the exhaustion of IPv4 addresses. Deployment of IPv6 has been happening since the middle of the 2000s. Human-readable notations are used to write and display IP addresses, such as 192.0.2.1 for IPv4 and 2001:db8:0:1234:0:567:8:1 for IPv6.
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read an integer >2 from keyboard, for example 25, or 2500. use this number to determine the size of array "myarray," read each distinctive element value one by one from the keyboard, and store/set them in this array. delete its median value (i.e., the element at position "size/2" if the size of array is odd; otherwise, two elements at positions "size/2-1" and "size/2"). (hint: copy wanted elements to another array "x," then use "myarray
The number of elements that are actually present in an array is its length. The number of elements in an array is represented by the integer value that the len() function returns.
This gives back a value of 3, which is the number of elements in the array. The len() method in Python can be used to determine an array's length. It is a Python built-in method that accepts an array as an argument and returns the array's size in elements. The array size is returned by the len() method. The NumPy array's total number of items is determined by this attribute. dtype: The NumPy array's type can be determined with the use of this attribute.
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you use a linux distribution that uses rpm for package management. which command would you use to display a list of all packages available for installation within the internet repositories configured on the system?
Entering yum listing available at the command line will display the online repositories that this machine is set to utilise for yum on a Linux distribution which use RPM for package management.
What do Linux rpms stand for?Red Redhat Package Manager is referred to as RPM. It was created by Red Hat and therefore is primarily used with Linux operating systems that are Red Hat-based (Fedora, CentOS, RHEL, etc.). An RPM package is a package (a collection) of various files that has the.rpm extension.
Are Yum and RPM the same?RPM is independent and uses its very own database to store details about the packages that have been installed. The front tool is called YUM maintains products using the RPM package manager. The backend of the tool also makes usage of the RPM database.
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more than 90 percent of schools limit access to social networking websites from school computers and prohibit the use of cell phones and text messaging devices during school hours. group of answer choices true false
TRUE , more than 90 percent of schools limit access to social networking websites from school computers and prohibit the use of cell phones and text messaging devices during school hours.
What is social networking ?The utilization of websites and web-based tools to connect like-minded people is central to social networking. examples of social networking platforms. Networking on social media. A method of communicating and exchanging information through the Internet among close friends, as well as meeting and connecting with others through shared interests, experiences, and friends.
Social networking is the activity of using a specialized online platform to stay in touch, interact, and collaborate with like-minded individuals, peers, friends, and family.
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consider a source and destination host. before packets leave the source host, the host needs to define the path over which the packets will travel to reach the destination host. false
Before packets leave the source host, the source host does not define the path over which the packets will be traveling to reach the destination host. Thus the given statement is false.
When packets are transmitted over the network from a source host to a destination host, the source host does not determine the path through which packets will travel toward the destination host from the source host. Instead, it is the router that defines the best path and directs the packets from the source host to the destination host.
What is a router?
A router is a network layer device that determines the optimal path along which packets are forwarded over the network. Based on network layer information, routers forward packets from one network to the other network.
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in the tftp protocol: if the client changes its port number on a subsequent connection, but the server does not, what prevents an old-duplicate data packet sent by the server from being accepted by the new client? if the server changes its port number on a subsequent connection, but the client does not, what prevents an old-duplicate data packet sent by the server from being accepted by the new client?
The client will attempt to establish a TCP connection with the incorrect process or a nonexistent process if you use different port numbers. There will be errors.
An internet message or other network communication that arrives at a server can be redirected to a specific process by using the port number. All network-connected devices have standardized ports with a unique number installed. Multiple connections can be accepted simultaneously by a single listening port. There is a restriction of 64K that is frequently mentioned, but it should be made clear that this applies to each client and each server port. The client will connect to a machine and choose the port to use for communication. If the server is accessible through the port requested by the client, communication occurs.
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Name three major types of computer systems with which students are likely to be
engaged on a day-to-day basis.
Answer:
Analogue, digital, and hybrid computer systems.
suppose that a 64-bit processor uses the following cache: 2kb block size, 16-way associativity, and total size of 32mb. determine how many bits are used for the tag, index, and block offset.
We are aware that 64 KB equals 64K words, or 2 to the power of 14 words (2 to the power of 1 word = 2 to the power of 14 blocks).
Each block has 32 bits of data, a 32-14-2 bit tag, and a valid bit. Therefore, for a 64-KB cache, the overall cache size is (2 to the power 14)*49=784 bits, or 98KB. Since there are 64 bytes per line and a cache line's size equals a main memory block's size, the block offset is 6 bits. Associative 2-way cache stores two lines as a single set. The remaining 18 bits for the tag are calculated as follows: number of sets = total cache lines/2 = (512KB/64)/2 = 212, translating to 12 bits for the set.
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what emerging approach allows administrators to manage a network via a controller that does not require physical access to all the network devices?
Using a controller that doesn't require physical access to every network device, software-defined networking (SDN) enables network managers to operate a network remotely.
What is physical access?
Physical access to computer and network hardware or other components of a hardware installation means having direct, hands-on access to them on the premises. Security and authenticated the use hardware locations, from standard workstation cubicle to server rooms as well as other places where illegal physical access could pose security threats, are key concerns with physical access. Security professionals and others frequently draw a distinction between "physical access" and "logical access," which involves users interacting with devices remotely via techniques such Internet protocol access methods. When there is physical access, it's crucial to safeguard hardware by safeguarding the area in which it is kept. Physical access is often seen as a component of comprehensive risk management by outside experts.
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HELP!!!!! I NEED THIS RIGHT NOW!!!!!
What factors likely influenced game designers away from developing fewer arcade games and directing more time and effort into developing console and PC games?
The causes that most likely led game designers away from arcade games and toward PC and console games were primarily because PC and console games were fast increasing and much simpler to purchase for the general public, whereas arcade games were more pricey and exclusive.
What is an Arcade game?An arcade game is a coin-operated gaming machine that is commonly seen in public settings such as malls, restaurants, and amusement arcades. Video games, pinball machines, and electromechanical games are common types of arcade games.
An amusement arcade (also known as a video arcade, amusements, or simply arcade) is a location where people can enjoy arcade games such as arcade video games, pinball machines, electromechanical games, redemption games, merchandisers (such as claw cranes), or coin-operated billiards or air hockey tables.
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how is computer Science used in entretainment?
Answer:
video editing
Explanation:
there are many ways
in this lab, your task is to: implement your physical security plan by dragging the correct items from the shelf onto the various locations in the building. as you drag the items from the shelf, the possible drop locations are highlighted. to implement your plan, you must:
The protection measures for an installation or facility are specified in a physical security plan. we will be able to recognize the significance of each component of a physical security plan in defending DOD assets by the end of this short.
Physical security relates to preventing theft, vandalism, natural disasters, man-made disasters, and accidental damage to construction sites, equipment, and the data and software included therein (e.g., from electrical surges, extreme temperatures, and spilled coffee). Access control, surveillance, and testing make up the three key parts of the physical security system. The degree to which each of these elements is implemented, enhanced, and maintained can frequently be used to measure the effectiveness of a physical security program for an organization.
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assume that we have a function for an application of the form f(i, p), which gives the fraction of time that exactly i processors are usable given that a total of p processors is available. that means that
That means that -F (i,p)=1.
Processor or Microprocessor is a hardware device that becomes the brain of a computer and if the PC is without a processor, the PC cannot run. The processor is often also referred to as the central control or brain of the computer which is supported by other components. The processor is an IC that controls the entire course of a computer system and is used as the center or brain of a computer that functions to perform calculations and perform tasks. The location of a processor is in the socket provided on the motherboard; the processor can be replaced with another processor as long as the processor matches the socket on the motherboard. Many processor brands on the market include Intel, AMD, IBM, Apple, Cyrix VIA, and IDT. However, there are 2 companies that are famous in the world as processor developers for PCs, namely AMD and Intel.
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