The correct Option is (A), Array is formed like matrix 4 X 4 scores[2][3] indicates index 2 for the row and index 3 for the column is 94.
What is the definition of array?An arrays is indeed a collection of closely related datasets kept in close proximity to one another in memory. The sole way to retrieve each database file directly is by using its index number, making it the most basic data structure.
Why do we employ an array?In order to prevent confusion that can arise when utilizing multiple variables, arrays help in maintaining vast sets of data below a single variable name. arranging the data components: Diverse array algorithms, including bubble sort, selection sort, and insertion sort, can aid in the efficient and effective organization of various data items.
To know more about array visit :
https://brainly.com/question/29761562
#SPJ4
Codewriting Python 3 main.py3 Saved def solution (blocks, height): You are given array of integers called blocks . Each of the values in this array represents the width of a block - the ith block has a height of 1 and a width of blocks[i] (i.e. it's a 1 x blocks (1) block). You want to pack all the given blocks into a rectangular container of dimensions height x width , according to the following rules: . Place blocks into the container row by row, starting with block . For each row, place the blocks into the container one by one, in the order they are given in the blocks array. • If there is not enough space to put the current block in the current row, start filling the next row. You are given the value height of the rectangular container. Your task is to find the minimal possible width of a rectangular container in which all blocks can fit. Find and return this minimal possible width value. TESTS CUSTOM TESTS RESULTS O RUN TESTS NOTE: The blocks cannot be rotated. A Tests passed: 0/26. Syntax error. Example Test 1 . For blocks - [1, 3, 1, 3, 3] and height - 2. the output should be solution (blocks, height) - 6 Input: blocks: [1, 3, 1, 3, 3] height: Here's how the blocks should be packed in a container size 2 X6 6 Expected Output: LILL-HD-T.
The minimal possible width of a rectangular container in which all blocks can fit is print(solution([1, 3, 1, 3, 3], 2)) #test case
def solution(blocks, height): #function definition
width = max(blocks) #at first width is initialzied with max width of block in blocks list
while(1): #loop repeats until correct width is found
temp = [] #list to store the blocks that are placed succesfully
x = [] #a list of size height is declared to store the blocks of each row
for i in range(height):
x.append(0) #fill the list x with zeroes
j = 0 #j is initialzied to zero
for i in range(len(blocks)): #for each block present in blocks list
if(x[j] + blocks[i] <= width): #if current block can be placed in jth index
x[j] += blocks[i] #then it is added
temp.append(blocks[i]) #and as it is added to x, we can add that to temp also
else: #else
j += 1 #go for next index i.e., increment j by 1
if(j < len(x) and (x[j] + blocks[i] <= width)): #check if current block can be placed
x[j] += blocks[i] #adds that to x
temp.append(blocks[i]) #and to temp also
else: #else if the capacity of rectangle exceeds
width += 1 #we increase the width by 1 and continue the above process again
break #break from this for loop
if(len(temp) == len(blocks)): #whenver temp and blocks are same, all blocks are placed succesfully
break #then we break from the while loop
return width #width is returned
print(solution([1, 3, 1, 3, 3], 2)) #test case
To learn more about Python
https://brainly.com/question/18502436
#SPJ4
For business networks, which of the following is NOT one of the main cable types?
A) Twisted-pair
B) Polyvinyl
C) Coaxial
D) Fiber-optic
The correct answer is (B), Polyvinyl is NOT one of the primary cable types used for corporate networks.
What is network?Two or more computers linked together to pool resources (such printer and CDs), exchange information, or enable electronic communications make up a network. A network's connections to its computers can be made by cables, telephone line, radio frequencies, satellite, or infrared laser pulses.
What is the most common network?Though LAN & WAN networks are the two most common, the following network types may also be mentioned: A LAN that uses Wi-Fi wirelessly network infrastructure is known as a "wireless local area network." Metropolitan Area Networks: A network which covers a geographical area that is wider than that of a LAN but smaller than a WAN, like a city.
To know more about network visit :
https://brainly.com/question/24279473
#SPJ4
Consider the advantages and disadvantages of using descriptive variable names versus short variable names when using text-based code.
The advantages and disadvantages of using descriptive variable names versus short variable names when using text-based code is given below
Advantages of descriptive variable names:
Descriptive variable names can make code easier to read and understand, especially for people who are unfamiliar with the codebase.Descriptive variable names can help to document the purpose and use of a variable within the code, making it easier for others to understand and maintain the code.Disadvantages of descriptive variable names:
Descriptive variable names can take up more space in the code, making it longer and potentially more difficult to navigate.Descriptive variable names may be less efficient to type, especially if they are very long.What is the short variable names about?The Advantages of short variable names:
Short variable names can make code more concise, which can make it easier to read and navigate.Short variable names can be easier to type, which can save time and reduce the risk of typos.Disadvantages of short variable names:
Short variable names can be harder to understand, especially if they are not intuitive or if they use abbreviations or acronyms that are not widely understood.Short variable names can make code less self-documenting, which can make it more difficult for others to understand and maintain the code.In all, the choice between using descriptive or short variable names will depend on the specific context and needs of the codebase. In general, it is important to strike a balance between readability and conciseness, and to choose variable names that are appropriate for the purpose and intended audience of the code.
Learn more about descriptive variable names from
https://brainly.com/question/5045668
#SPJ1
Which of the following is NOT a characteristic of Advanced Persistent Threat (APT)?
a. can span several years
b. targets sensitive proprietary information
c. uses advanced tools and techniques
d. is only used by hactivists against foreign enemies
One of the following is NOT a trait of Advanced Persistent Threat (APT), which is only applied by activists against adversaries abroad.
Which of the following traits best describes an apt attack?APT assaults differ from conventional cyber-attacks in four ways [9], which are listed below. Advanced or Complex, Persistent, Targeted, and Evasive (APTs) (see Figure 3). APT assaults are meticulously and methodically prepared, spanning several steps.
What traits define an advanced persistent threat that gives it that moniker?An advanced persistent threat (APT) is one that uses persistent, covert, and sophisticated hacking methods to enter a system and stay there for an extended length of time, perhaps with harmful effects.
To know more about Advanced Persistent Threat visit :-
https://brainly.com/question/28902554
#SPJ4
Write a procedure ConvertToBinary that takes an input as a number from 0 to 16 (including 0 but not 16) and converts it to a binary number. The binary number should be returned as a list.
Answer:function ConvertToBinary(n) {
console.log(n.toString(2).split(''));
}
ConvertToBinary(13);
Explanation:
Which tool would be the best choice to remove and replace the motherboard BIOS chip?
A. IC extractor
B. Screwdriver
C. Needle-nose plier
D. Combination ratchet
The BIOS, which stands for Basic Input/Output System and is pronounced bye-oss, is a ROM chip that is present on motherboards that enables you to access and configure your computer system at the most fundamental level.
Can I swap out the BIOS chip?Even though your BIOS cannot be flashed, you can still update it if the chip is placed in a socketed DIP or PLCC chip. The current chip must be physically removed and either replaced after being reprogrammed with the newer BIOS code or exchanged for a brand-new chip.
What takes place if the BIOS chip is harmed?This initial program cannot be correctly launched and a computer cannot start if the BIOS chip on the motherboard is broken or corrupted.
To know more about BIOS visit :-
https://brainly.com/question/3364065
#SPJ4
A computer user has provided input, and the computer system has completed its processing functions, but the user does not have an immediate use for the information that resulted from the processing. What type of peripheral device might then be used for the next step of the process?
The following stage of the process might then make use of a peripheral device of the hard disk variety.
What should you do if a computer headset that is connected in isn't functioning properly?What should you do if a computer headset that is connected in isn't functioning properly? Remove the headset's plug. -Refresh the device driver. - Change the computer's power cable.
Detailed instructions that explain to the computer how to transform data into information?The software, or the carefully thought out, sequential instructions needed to transform data into information, is what actually makes computers useful. Software categories. In general, software can be divided into system software and applications software.
To know more about peripheral device visit :-
https://brainly.com/question/4297339
#SPJ4
To accomplish self-regulation, a highly complex and integrated communication control system or network is required. This type of network is called a(n)
A very intricate and comprehensive communication control system or network is needed to achieve self-regulation. A feedback control loop is the name for this kind of network.
The homeostatic control system is what?Homeostasis controls an organism's internal environment and upholds a steady state of variables like pH and temperature.
Why is it referred to as homeostasis?Homeostasis, which derives from the Greek meanings for "same" and "steady," is any method used by living creatures to actively maintain the relatively consistent conditions required for survival.
To know more about control system visit:-
https://brainly.com/question/28380332
#SPJ4
Unauthorized requests, receipt, release, interception, dissemination or discussion of FBI CJI data could result in criminal prosecution and/or termination of employment. True False
The given statement is true because unauthorized requests, release, receipt, interception, dissemination, or discussion of FBI CJI data could result in criminal prosecution and/or termination of employment.
FBI CJIS (Criminal Justice Information Services) refers to all data provided by CJI Criminal Justice Information that is required for law enforcement agencies to perform their mission and enforce the laws, including but not limited to biometrics, identity history, organization, person, property (when accompanied by any personally identifiable information), and case/incident history data. In many cases, victim and witness data must also be safeguarded.
Since, FBI CJI data is sensitive information and security should be afforded to prevent any unauthorized access, use, or dissemination of the data. Otherwise unauthorized requests, release, receipt, interception, dissemination, or discussion of FBI CJI data could result in criminal prosecution and/or termination of employment.
You can learn more about FBI CJI data at
https://brainly.com/question/29997949
#SPJ4
You are the security administrator for an enterprise that follows the bring your own device (BYOD) deployment model. What is the first action that you should take to protect sensitive enterprise data from exposure if an employee device is stolen and can't be located
You should perform a remote wipe to protect sensitive enterprise data from exposure if an employee device is stolen and can't be located.
What exactly are remote lock and wipe?Terms like "remote wipe" and "remote lock" are frequently used in the business to describe managing mobile devices like laptops, desktop computers, tablets, smartphones, and more (MDM).
A stolen laptop can it be remotely erased?Your Windows laptop can also be remotely erased. Prior to this occurring, confirm that the Find My Device feature is turned on: Authenticate using your Microsoft account. In Windows 10, make sure the feature is turned on by going to Settings > Update & Security > Find my device.
To know more about remote wipe visit
brainly.com/question/10316119
#SPJ4
A large data mart might require a database administrator to design, construct, and maintain it.
True or False?
FALSE . The assertion made is untrue.
Why does keeping data in a single location help to assure data integrity?Data is kept in a single area using a centralized database, and changes can only be made there.As a result, this choice is right.
What does a data mart serve as?
The data mart is indeed a portion of a database system that is concentrated on a specific department, business unit, or topic matter.Data marts enable a designated group of users to quickly acquire crucial insights while wasting time looking through a large data warehouse by making particular data available to that group of users.
To know more about database administrator visit:
https://brainly.com/question/30003728
#SPJ4
what two applications are an example of a mail server and a mail client application, respectively?
The two applications are of a mail server and a mail client application is exchange and outlook respectively.
Describe a server.A computer program or apparatus that offers a software application and its client, also called as the client, is referred to as a server. The actual computer that a server program runs on in a data center also is frequently referred to as a server.
How is a server operated?A server houses all the information related to the websites it hosts and distributes it to all mobile phones and computers (including yours) that require access to those websites.
To know more about server visit :
https://brainly.com/question/3520803
#SPJ4
When talking about the physical elements of the Internet, the term redundancy refers to:
A) transmitting multiple copies of a single packet to safeguard against data loss.
B) the use of tiered high-speed switching computers to connect the backbone to regional and local networks.
C) delays in messages caused by the uneven flow of information through the network.
D) multiple duplicate devices and paths in a network built so that data can be rerouted if a breakdown occurs.
D) multiple duplicate devices and paths in a network built so that data can be rerouted if a breakdown occurs.
Which one of the above is the Internet's primary communication protocol?Definition:The primary communication protocol for the World Wide Web is TCP/IP (Control Protocol Protocol), often known as the Internet Protocol. TCP/IP permits simultaneous communication between all Internet-connected devices.
Which one of the above was the Internet's original goal?The Internet was initially developed for military use before being broadened to support scientific collaboration.The innovation was also influenced in part by the 1960s' rising need for computers.
To know more about physical elements visit:
https://brainly.com/question/10973978
#SPJ4
26. Universal Containers (UC) has a queue that is used for managing tasks that need to be worked by the UC customer support team. The same team will now be working some of UC's Cases. Which two options should the administrator use to help the support team
The two options should the administrator use to help the support team are (I) Configure a flow to assign the cases to the queue and (II) Use assignment rules to set the queue as the owner of the case.
A universal container is what?International distributor of containers, Universal Containers is expanding quickly. The business manufactures all different types of containers, including small postal containers, special equipment packing, and huge cargo shipping containers.
What does Salesforce mean by a universal container?As a rapidly expanding international supplier of container solutions, Universal Containers creates various scenarios by getting users to consider issues from a business viewpoint and by offering advice on the types of industries and scenarios we will encounter and how to handle them.
To know more about universal container visit:
https://brainly.com/question/30143272
#SPJ4
Two important components of the system unit are the keyboard and the hard disk
True/False
the correct answer of this statement "Two important components of the system unit are the keyboard and the hard disk" is False.
What does a hard disk do?Hard disk, commonly known as hard disk drive or hard drive, is a computer's magnetic storage medium. Hard disks are flattened, round, strong magnetic platters consisting of metal or glass. Terabytes (billions of bytes) of data can be stored on personal computer hard disks.
Why hard drives are better than SSD?The technology utilized to keep and retrieve information differs among hard drives & solid state drives. Some of the changes are shown in the table below. HDDs cost very little and provide more storage capacity. However, SSDs are far quicker, lighter, more robust,
To know more about Hard disk visit :
https://brainly.com/question/30009392
#SPJ4
urn the ignition switch to start and release the key immediately or you could destroy the ___________.
Start the engine and, if necessary, be aware of the ignition positions. Release the key or button as soon as the engine begins. Aim for 1.5 to 2 seconds of idle time before you start the car. Ensure that all gauges show the vehicle systems are operating normally.
What occurs when you turn on your car's ignition?The ignition switch activates the voltage from the battery to the ignition coil to produce the engine spark when triggered by the key or button press.
Why does my car's key need to be turned repeatedly to start?This kind of issue is typically brought on by some form of electrical issue. The battery's and starter's wiring could become faulty or fall loose.
To know more about ignition visit:-
https://brainly.com/question/12866730
#SPJ4
Choose the correct option. i) An object thrown from a moving bus is on example of
(A) Uniform circular motion
(B) Rectilinear motion
(C) Projectile motion
(D) Motion in one dimension
age
The answer is option C: "Projectile motion."
Projectile motion refers to the motion of an object that is thrown or launched into the air and follows a parabolic path under the influence of gravity. An object thrown from a moving bus is an example of projectile motion because it is launched into the air and follows a curved path due to the force of gravity.
Option A: "Uniform circular motion" refers to the motion of an object moving in a circular path at a constant speed.
Option B: "Rectilinear motion" refers to the motion of an object moving in a straight line.
Option D: "Motion in one dimension" refers to motion that occurs along a single straight line, rather than in two or three dimensions.
Hope This Helps You!
What is the output results of Artificial Neurons, electrical signals, chemical signals, numbers or letters?
Answer:
Neurons communicate via both electrical signals and chemical signals. The electrical signals are action potentials, which transmit the information from one of a neuron to the other; the chemical signals are neurotransmitters, which transmit the information from one neuron to the next.
Explanation:
the shop linked to these assets is violating integrity policies and is not eligible to engage in this commerce operation.
No, the shop is not violating any integrity policies and is eligible to engage in the commerce operation.
What is commerce operation?Integrity policies are measures designed to ensure that business operations are conducted in an honest, fair, and transparent manner.These policies include ethical codes of conduct, rules for disclosure and transparency, and prohibitions against fraud, bribery, and other corrupt practices. In this case, the shop linked to these assets has violated these policies and is therefore not eligible to engage in this commerce operation. The shop may have violated these policies by engaging in deceptive practices, such as false advertising or misrepresenting prices or services. It may have also failed to disclose important information or have taken part in other forms of corruption.Additionally, it may have failed to comply with applicable laws and regulations. All of these violations could render the shop ineligible to engage in this commerce operation. By adhering to integrity policies, businesses are able to ensure that they are engaging in ethical and legal practices while also protecting their customers and stakeholders.Therefore, it is essential that all businesses adhere to these policies to remain eligible for engaging in commerce operations.To learn more about Integrity policies refer to:
https://brainly.com/question/30138038
#SPJ4
Which two ports should packet-filtering rules address when establishing rules for Web access?
a. 143, 80 b. 25, 110 c. 80, 443 d. 423, 88
Packet-filtering rules for Web access should address ports 80 and 443.
Port 80 is used for unencrypted HTTP traffic, which is the standard protocol for communicating data over the web. Port 443 is used for encrypted HTTPS traffic, which is the secure version of HTTP used to protect the privacy of data transmitted over the web.
A PC that you are investigating has an IP address of 10.1.1.23. Without any further information, which of the following can you conclude from this IP address assignment?
A. This is a LINKLOCAL network address assigned by Automatic Private IP Addressing.
B. The PC must be part of an enterprise level network.
C. The IP address was statically assigned
D. The PC is a LAN client not connected directly to the Internet.
This IP address assignment leads to the conclusion that the PC is a LAN client and not directly linked to the Internet.
Among the following, which one can be an IP address?An IP address is written as four digits separated by periods, using a 32-bit format. Every number is between 0 and 255. An IP address might be 1.160. 10.240, for instance.
Which of the following methods is used to give a device an IP address?Dynamically allocating an Internet Protocol (IP) address to any device or node on a network so they can connect using IP is done using the network management protocol known as DHCP (Dynamic Host Configuration Protocol).
To know more about IP address visit:-
https://brainly.com/question/16011753
#SPJ4
What happens if you run a delete command that does not contain a where clause?
All rows in the table will be destroyed if you issue a delete command without a where clause.
What happens if you execute a DELETE command without a WHERE clause?REMOVE Syntax Which record needs to be erased is indicated by the WHERE clause. The entire table's records will be removed if the WHERE clause is left off.
If you type DELETE, what will happen?We don't need to be concerned about retrieving any data from the table after executing the delete command, and we don't need to be concerned about manipulating any data we receive back from the table. We only instruct the database to remove a certain record, and it either does so or it doesn't. That much is obvious.
To know more about delete command visit :-
https://brainly.com/question/8305259
#SPJ4
A customer recently moved a high-end graphics card from a known-working computer to a different computer. The computer works without issue when viewing email and web pages or when using certain applications. However, when a game with high-end graphics requirements is opened, the program will run for a few minutes before the computer shuts down. Which of the following is MOST likely causing the problem?
A. Video RAM
B. Power supply wattage
C. CPU frequency
D. Monitor resolution
The most likely cause of the problem is the power supply wattage.
What type of graphics card was installed in the new computer? The type of graphics card installed in the new computer depends on the specific model of the computer and its intended use. For example, a gaming computer may require a more powerful graphics card than a basic office computer. If the new computer is used mainly for gaming or video editing, it may require a dedicated graphics card such as an NVIDIA GeForce or AMD Radeon. For basic office work, a basic integrated graphics card is sufficient. When selecting a graphics card, it is important to consider the types of games or programs that will be used with the computer. Some games or programs may require a more powerful graphics card to run smoothly. Additionally, if the computer is used for video editing, an additional graphics card such as a Quadro or FirePro may be required. When shopping for a new computer, it is important to research the specific graphics card that will be required for the intended use of the computer. This will help to ensure that the computer is equipped with the necessary hardware to run the desired programs or games. Additionally, it is important to consider the power supply of the computer when selecting a graphics card.Some graphics cards require more power than the standard power supply can provide, so a higher wattage power supply may be necessary.To learn more about graphics card refer to:
https://brainly.com/question/30097997
#SPJ4
Benchmark tests on competing products can be used to select ____. a. primarily hardware products b. primarily software products
It is possible to utilize benchmark testing to assess both software and hardware items. The greatest product reviews in technology journals assess multiple goods against predetermined criteria and list the benefits and drawbacks of each product.
What is benchmarking?Comparing company operations and performance metrics to industry benchmarks and other companies' best practices is the process of benchmarking. Quality, time, and money make up the three key measures.
Using a certain indicator (such cost per unit of measure, productivity per unit of measure, or cycle time of x per unit of measure,
Benchmarking is a technique for measuring performance that generates a metric of performance that is then compared to others (such as faults per unit of measure).
This management technique, usually referred to as "process benchmarking" or "best practice benchmarking,"
compares a variety of operational characteristics of an organization to best-practice firms, usually within a peer group created for the purpose of comparison.
Hence , It is possible to utilize benchmark testing to assess both software and hardware items.
learn more about benchmark click here:
https://brainly.com/question/5561623
#SPJ4
Write and test a function called calcPrice that calculates and returns the price of an item.The function receives the wholesale and the markup percentage as arguments and returns the retail price.
Here is an example of a Python function that calculates and returns the price of an item, based on its wholesale price and markup percentage:
def calcPrice(wholesale, markup):
retail = wholesale + (wholesale * (markup / 100))
return retail
print(calcPrice(100, 50)) # 150
You can test the function by calling it with different inputs and print the result.
print(calcPrice(100, 50)) # 150
print(calcPrice(200, 25)) # 250
The function takes two arguments, wholesale and markup, which represent the wholesale price of the item and the markup percentage, respectively. The function calculates the retail price by adding the markup percentage (expressed as a decimal) of the wholesale price to the wholesale price, and then returns this value.
Learn more about Phyton here https://brainly.com/question/16757242
#SPJ4
explain plat data model
Data models are a set of guidelines and/or constructs that are employed in computers to define and represent elements of the real world. There are two main data models.
Describe data models using an example.There are two distinct but related notions that might be referred to as data models. It can also refer to an abstract formalization of the entities and connections present in a certain application domain, such as the clients, goods, and orders in a manufacturing company.
By data model, what do you mean?Data models for an organization visually represent data elements and their interactions. Models help define and structure data within the context of relevant business activities, which aids in the development of effective information systems.
To know more about data model visit:-
https://brainly.com/question/29651109
#SPJ1
What type of OS in firmware is designed to manage a specific device like a video game console?
a. network OS
b. client OS
c. workstation OS
d. appliance OS"
d. The firmware known as Appliance OS is created specifically to manage devices like video game consoles.
What particular program can check a computer for infections?A class of software called antivirus software is created to stop, spot, and get rid of malware infections on specific computing devices, networks, and IT systems.
An OS for appliances is what?An software appliances is a software program integrated with just enough JeOS (just enough operating system) to run effectively on server- or virtual machine-based hardware that meets industry standards.
To know more about Appliance OS visit:
https://brainly.com/question/29355582
#SPJ4
What is the name of the process which permits a continous tone image to be printed simultaneously with text
The Halftone process is the name of the process which permits a continous tone image to be printed simultaneously with text.
An image in halftones is what?Halftones are used most frequently to print photographs, paintings, or other comparable pictorial works that are reprinted in books, periodicals, and newspapers. In a halftone, the picture's continuous tones are divided into a sequence of evenly spaced, varying-sized dots and printed using just one ink colour.
In image processing, what is halftoning?By changing the size of teeny black dots placed in a regular pattern, halftoning, also known as analogue halftoning, simulates different shades of grey. Printing companies and the publishing business both employ this method.
To know more about Halftone visit
brainly.com/question/10678312
#SPJ4
Robin has been asked to lead training for new technicians at a local PC distributor specializing in gaming PCs. For which one of the following should she not recommend upgraded parts ?
A. High-end cooling
B. A RAID array
C. High-end video
D. Better sound card
If she doesn't suggest upgrading the parts, one of the following is a RAID array.
Which kind of operating system, and why, is best for a modern computer system?MS-Windows It has been the standard operating system powering computing systems around the world since Windows 95 up until Windows 10. It is simple to operate and quickly restarts operation. More protection has been added to the most recent versions to protect you and your data.
Which of these three desktop virtualization clients are there?Desktop-as-a-Service, Remote Desktop Services, and Virtual Desktop Infrastructure (VDI) are the three most prevalent types of desktop virtualization (DaaS).
To know more about RAID array visit :-
https://brainly.com/question/29892509
#SPJ4
When placing a ladder in front of a window to support a smoke ejector after a fire has been extinguished, the ladder tip
By dividing the working length—the length the ladder is really using—by 4, it is simple to calculate the ideal distance between the butt of the ladder and the building.
Describe the fireman's ladder.A hook ladder, commonly referred to as a pompier ladder (from the French pompier, meaning firefighter), is a form of ladder that may be fastened to a window sill or other similar ledge by the use of a hooked, extended bill with serrations on the underside. After that, the hooked ladder hangs hanging vertically down the building's face.
Why is the name "Hook and ladder" given to fire trucks?A firefighter may find it challenging to maintain his balance, especially when it's wet. To give better footing and safety, the roof ladder is therefore used. The phrase "Hook and Ladder" refers to it because it contained the renowned "hook."
To know more about firefighter ladder placement visit
brainly.com/question/30172619
#SPJ4