For each part, say whether the statement is true or false. All logarithms are base 2 unless otherwise noted.
a) 2n ? ?(4n).
b) log(n2) + log(1010n10) ? O(logn).
c) \sqrt[]{2^{n}} ? O((\sqrt[]{2})^n).
d) n / ln(n) ? ?( (ln(n)) 2).
e) if log f(n) ? ?(log g(n)), then f(n) ? ?(g(n)).

Answer:

Following are the code to this question:

import re#import package regular expression

def contains_acronym(val): #defining a method contains_acronymn that accepts text value in parameter

   match= r"\([A-Z1-9][a-zA-Z1-9]*\)"#defining match variable that uses upper case, number, and lower case value  

   r= re.search(match, val)#defining r varaible that uses search method to search values

   return r!= None #use return keyword  

val="Instant messaging (IM) is a set of communication technologies used for text-based communication"

print(contains_acronym(val))#use print function to call method and print its return value

Output:

True

Explanation:

In the above-given code, first, we import package "regular expression" this package is used to check the string, In the next line, a method "contains_acronym" is defined that accepts a "val" variable in its parameters.

Answer:

B

Explanation:

if you establishe a remote browsing by isolating the browsing session of end user.. you'll be safe

Answer:

No, I am not surprised devices have been around for thousands of year, as humans seek to make things easier by inventing devices for daily work support.

Explanation:

Computer as a device helps for computation of data to the much needed information. It is digital and fast. My first sight of a computer was a box with a small screen and other units like the keyboard and mouse. It was big and bulky. Now the computer system is compact and user friendly and used for daily human activities like graphic design, programming, gaming, playing music and videos, etc. It even have very high processing speed and multiple processor cores, this was not so in the past.

Answer:

Explanation: The following features will be implemented:

1) Guest networks,

2) Networked attached storage,

3) MAC filtering

A guest Wi-Fi network is essentially a separate access point on your router. All of your home gadgets are connected to one point and joined as a network, and the guest network is a different point that provides access to the Internet, but not to your home network. As the name implies, it's for guests to connect to.

Network Attached Storage

is dedicated file storage that enables multiple users and heterogeneous client devices to retrieve data from centralized disk capacity. Users on a local area network (LAN) access the shared storage via a standard Ethernet connection.

MAC address filtering allows you to define a list of devices and only allow those devices on your Wi-Fi network.

Electronic Controls Company it was founded on 1949 by J.Presper and John Mauchly

Answer: Electronic Controls Company

Explanation: The first computer company was Electronic Controls Company and was founded in 1949 by J. Presper Eckert and John Mauchly, the same individuals who helped create the ENIAC computer.

Hope this helps^^

Answer:

Optometrist

Explanation:

Optometrists are healthcare professionals who provide primary vision care ranging from sight testing and correction to the diagnosis, treatment, and management of vision changes. An optometrist is not a medical doctor.

Answer:

c

Explanation:

Answer:

Many occupations use mathematics, even if it is not the primary focus of a given job.

Explanation:

Think about software developers, they develop apps, websites, and other things, but they also use math in the process. Scientists use statistics. Mechanics use math to make sure their measurements are right. Therefore, I think your best bet would be

A. Many occupations use mathematics, even if it not the primary focus of a given job.

Answer:

Explanation:

Think about software developers, they develop apps, websites, and other things, but they also use math in the process. Scientists use statistics. Mechanics use math to make sure their measurements are right. Therefore, I think your best bet would be

A. Many occupations use mathematics, even if it not the primary focus of a given job.

Answer:

SSIDs : service state identifiers are used to beacon for connect from an access point or wireless router. They are used to request for authentication in a wireless network.

Channels used: this is the frequency range used by a wireless network. It is spaced to avoid collision.

Ap names is the name of the wireless access point that is used to identify a beacon in a workstation. Bluetooth is a short range private network between two devices.

RFID: radio frequency identifier or identification is a chip that hold information of an individual electronically.

Explanation:

These are some examples of wireless communication devices.

Answer: Enforce the organization's security policy

Explanation: Group policy provides a robust and centralized control to systems or computers on a particular network by providing a quick and efficient means of maintaining network security by affording network administrators the ability to several policies they wish to apply on users and computers in their network. This way the changes or policies can be applied to every computer on it's network. Hence it allows the network administrators to enforce the organization's security policy which may include restricting access to certain websites, directories, files or settings for all computers on the organization's network.

Answer:

Friend Functions of a class are not members of that class.

Explanation:

A friend function of a class is defined outside the class' scope, but has the access rights to all private and protected members of that class.

Cheers.

Answer:

b. False

Explanation:

Xanadu is a project formulated by a certain Ted Nelson, and was originally intended to be a machine-language program with the capability of saving and showing various documents side by side, while the availability of editing function is also available.

Hence, in this case, it is FALSE that Xanadu was to be a full-blown multimedia computer that could embody any medium

Answer:

4,3,2,1

Explanation:

Answer:

Describe Format Painter by ordering the steps Jemima should follow to make the format of her subheadings more consistent.

Step 1: Select the subheading with the desired format.

Step 2:

✔ Navigate to the ribbon area.

Step 3:

✔ Go to the Clipboard command group.

Step 4:

✔ Click the Format Painter icon.

Step 5:

✔ Click and drag the icon on the second subheading.

Step 6: Use Reveal Formatting to make sure formatting was copied.

Explanation:

not needed

Answer:

a

Explanation:

Answer:

the answer is A

Explanation:

Answer:

restart the application, if that doesn't work try a different internet server (if the application requires internet connection), free up ram, restart AND shut down your computer, undo any hardware or any softwar changes

Explanation:

Restart the application, if that doesn't work try a different internet server (if the application requires internet connection), free To begin with, the term of back-out plan in the field of computers.

The term of back-out plan in the field of computers refers to the situation where a person wants to restore a system to its original or previous state in the case where there is a failure trying to implent a new system.

Moreover,  this back-out plan works as an action process where once the failure has happened then the system will intiate a series of procedures to uninstall or disintegrate the system that had the failure. It basically defines a contingency plan component of the IT service management framework.

Secondly, in the case presented where a person must decide what document he should address to resolve the problem then a back-out plan will be the most common response given the fact that it will quickly uninstall the new software that was not compatible with the old data fields and help the users to open their files without problems and later seek for a new way to install that new software.

Therefore, Restart the application, if that doesn't work try a different internet server (if the application requires internet connection), free To begin with, the term of back-out plan in the field of computers.

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Answer:

ExpressRoute

Explanation: ExpressRoute is an Azure service that allows a user to create a private connection with other datacenters /infrastructures. It gives an enterprise the opportunities to effectively extend and expand its networks into cloud services offered by Microsoft cloud, it can also be described as a cloud Integration option that can be used by a private network to plug-in into a Microsoft cloud services.

Answer: B

Explanation:

Answer:

kiosks

Explanation:

It is generally believed that a digital citizen refers to a person who can skillfully utilize information technology such as accessing the internet using computers, or via tablets and mobile phones, etc.

Kiosks (digital kiosks) are often used to market brands and products to consumers instead of having in-person interaction. Interestingly, since almost everyone today goes shopping, consumers who may have held back from using digital services are now introduced to a new way of shopping, thus they become digital citizens sooner or later.

Enterprise computing, natural language processing, robotics, and virtual reality are vital for an individual to become a digital citizen.

Enterprise computing simply means a business-oriented technology that's vital to the operations of a company. It's part of the critical infrastructure of a company.

Robotics is the design, construction, and the use of robots. It's used for assisting human beings to perform different operations.

Virtual reality refers to a stimulated experience that appears to make objects and scenes real. It should be noted that robotics, virtual reality, natural processing language, etc are vital for an individual to become a digital citizen.

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Answer:

ICMP echo requests.

Explanation:

A Domain Name System (DNS) can be defined as a naming database in which internet domain names (website URLs) are stored and translated into their respective internet protocol (IP) address. This simply means that, DNS is used to connect uniform resource locator (URL) or web address with their internet protocol (IP) address.

When troubleshooting Domain Name System (DNS) problems, one helpful feature the public servers usually support is an ICMP echo requests.

ICMP is an acronym for Internet Control Message Protocol and it is a standard protocol for communicating network errors in the form of messages such as Time exceeded and Destination unreachable.

In Computer Networking, an echo reply and echo request are implemented with a command utility referred to as ping. When a user sends an echo request message with the ping program, a successful attempt will return an echo reply message.

Hence, when troubleshooting Domain Name System (DNS) problems, a user should ping a public server such as a Google DNS server with the IP address (8.8.8.8 or 8.8.4.4), Cloudfare with 1.1.1.1 or the common 4.2.2.2 DNS server. If successful, it means the name-server was resolved properly into an IP address and therefore, there's an active connection on the network.

Based on the information given, the helpful feature that public servers usually support is the ICMP echo requests.

It should be noted that a Domain Name System simply means a naming database where the internet domain names are stored and translated into their respective internet protocol address.

It should be noted that when troubleshooting Domain Name System problems, the helpful feature that public servers usually support is the ICMP echo requests.

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Answer:

Explanation:

The reasons why a language would distinguish between uppercase and lowercase in its identifiers are:

(1) So that variable identifiers may look different than identifiers that are names for constants, such as the convention of using uppercase for constant names and using lowercase for variable names in C.

(2) So that the catenated words such as names can have their first letter distinguished, as in Total Words. The primary reason why a language would not distinguish between uppercase and lowercase in identifiers is it makes programs less readable, because words that look very similar are actually completely different, such as SUM and Sum.

Answer:

Three python errors are; import error, value error, and key error.

Explanation:

Errors occur in all programming languages and just like every other language, python has error handling techniques like the try and except and also the raise keyword.

A value error occurs when an output of a variable or expression gives an unexpected value. Import error results from importing a module from an unknown source while a key error is from a wrong input keypress.

Catching these errors and raising an error gives more control and continuity of the source code.

Answer:

Catching exceptions helps a programmer to resolve raised issues at runtime instead of deliberately closing their program.

There are a lot of types of file errors. e.g. hadware/os errors, name errors,

operation errors, data errors.

Explanation:the function try will provide a testing of your code validating if it is correct, it will continue running. and adding the function except, it will print the error.

Dealing with the error depends on what you like the program to do and how you want to identify the errors so you can work on them.

Answer: The course web should be visited daily to check for new e-mail and any instructor announcement.

Explanation:

For any serious-minded and Intellectually inclined individual, who aimed for a successful completion of an 8-Week course, it's imperative for him/her to visit the course web site daily to check for new e-mail and any instructor announcements.

Answer:

- Connect A0, A1 and A2 to the inputs of the two 3-to-8 decoders

- Connect A3 to the enable input of the first 3-to-8

- Connect A3 also to an inverter, and the output of that inverter to the enable input of the second 3-to-8

- D0 to D7 of the first 3-to-8 is D0 to D7 of your 4-to-16

- D0 to D7 of the second 3-to-8 is D8 to D15 of your 4-to-16

Answer:

Internet of things

Explanation:

Internet of things often referred to as IoT, is a term in the computer world, that describes an object or a form of the network between various but similar items, and is purposely designed or has the capacity to gather data without the need to have biological or human-computer data exchange.

Hence, the Internet of Things saves network service providers a lot of money by collecting relevant statistics on network device usage.

Answer:

Hey!

Your answer should be B The apparent movement of an object

Explanation:

Animation is a method in which figures are manipulated to appear as moving images...often done with softwares where you take multiple images per scene and string them together WHICH MAKES THE OBJECT MOVE!

HOPE THIS HELPS!

Solution:

Since no language was specified, this will be written in Python.

n1, n2, n3 = input ("Enter three names: ").split()

print(n3)

print(n2)

print(n1)

Cheers.

Answer:

cannot be used outside of its intented purpose

Explanation: python keywords are special reserved words that have specific meanings and purposes and can't be used for anything but those specific purposes

Answer:

Here is the Python program:

import tkinter  #to create GUI translator application

class Spanish2English:  # class to translate Spanish words to English

 def __init__(self):  # constructor of class

   self.main_window = tkinter.Tk()  # create a main window

   self.top_frame = tkinter.Frame()  # create a frame

   self.middle_frame = tkinter.Frame()#  # create a middle frame

   self.bottom_frame = tkinter.Frame() #create a frame at bottom

   self.top_label = tkinter.Label(self.top_frame,text="Select a spanish word to translate")  #creates a label at top frame with text: Select a Spanish word to translate

   self.top_label.pack()  # to organize the widgets

   self.first_button=tkinter.Button(self.middle_frame, text="uno",command=self.word1)  

#create first button with Spanish word uno and place it in middle frame

   self.second_button = tkinter.Button(self.middle_frame, text="dos",command = self.word2)  

# create second button with Spanish text dos and place it in middle frame

   self.third_button = tkinter.Button(self.middle_frame, text="tres",command = self.word3)  

# create third button with Spanish text  tres and place it in middle frame

   self.first_button.pack(side='top')  #place first button at top

   self.second_button.pack(side='top')  #place second button next

   self.third_button.pack(side='top')  #place third button in end

   self.bottom_left_label = tkinter.Label(self.bottom_frame,text="English translation: ")  #creates label with text English translation:

   self.translation = tkinter.StringVar()  #creates String variable to hold the English translation of the Spanish words

   self.trans_label = tkinter.Label(self.bottom_frame,  textvariable=self.translation)  #creates and places label at the bottom frame which contains the English translation of Spanish words

   self.bottom_left_label.pack(side = 'left')

#organizes the labels

   self.trans_label.pack(side = 'right')

#organizes the frames

   self.top_frame.pack()

   self.middle_frame.pack()

   self.bottom_frame.pack()    

   tkinter.mainloop() #to run the application

 def word1(self): #method to translate word1 i.e. uno

   self.translation.set('one') #set the value of object to one

 def word2(self): #method to translate word2 i.e. dos

   self.translation.set('two') #set the value of object to two

 def word3(self): #method to translate word3 i.e. tres

   self.translation.set('three')  #set the value of object to three

translator = Spanish2English() #run the translator application

Explanation:

The program is well explained in the comments mentioned with each line of program

The program creates a GUI translator application using tkinter standard GUI library. In class Spanish2English first the main window is created which is the root widget. Next this main window is organized into three frames top, middle and bottom. A label is placed in the top frame which displays the text "Select a Spanish word to translate". Next, three buttons are created, for each Spanish word. The first button displays the Spanish word 'uno', second button displays the Spanish word 'dos' and third button displays the Spanish word 'tres'. Next, the two labels are created, one label is to display the text: "English translation: " and the other label is to display the English translation of the Spanish words in each button. In the last, three methods, word1, word2 and word3 are used to set the value of the translation object.

The program along with its output is attached.

Answer:

Because of temporary file

Explanation:

Go to run and go in temporary file

Answer:

BBB

Explanation:

Given

Java code segment

Required

What is the output?

Analyzing the code segment 1 line after other

This line initializes t to 0

t = 0;

This line checks if t is greater than 7

if(t > 7)

If the above condition is true, the next line is executed

System.out.print("AAA");

NB: Since t is not greater than 7, System.out.print("AAA");  will not be executed

Lastly, this line executed

System.out.print("BBB");

Hence, BBB will be displayed as output