Answer:
Following are the code to this question:
val={} #defining dictionary variable val
def unique_word(i):#defining a method unique_word
if i in val: #defining if condition to add value in dictonary
val[i] += 1#add values
else: #defining else block to update values
val.update({i: 1})#updating dictionary
s =input('Enter string value: ') #defining s variable for input string value
w=s.split()#split string value and sorte in w variable
w.sort() #sorting the value
for i in w: #defining loop for pass value in method unique_word
unique_word(i)#assign value and calling the unique_word method
for j in val:# defining for loop to print dictionary value
if val[j] == 1: #defining if block to check value is unique
print(j) #print value
Output:
Enter string value: my name is dataman
dataman
name
is
my
Explanation:
In the above python code, a dictionary variable "val" is declared, which is used in the method "unique_word" that uses if block to count unique word and in the else block it update its value. In the next step, s variable is declared, that the user input method to store the value and another variable "w" is defined that split and sort the string value. In the last step, two for loop is declared in which the first loop passes the string value and calls the method "unique_word", and in the second loop if block is defined that check unique value and prints its value.A network security analyst received an alert about a potential malware threat on a user’s computer. What can the analyst review to get detailed information about this compromise? Check all that apply
Complete Question:
A network security analyst received an alert about a potential malware threat on a user’s computer. What can the analyst review to get detailed information about this compromise? Check all that apply.
A. Logs.
B. Full Disk Encryption (FDE).
C. Binary whitelisting software.
D. Security Information and Event Management (SIEM) system.
Answer:
A. Logs.
D. Security Information and Event Management (SIEM) system.
Explanation:
If a network security analyst received an alert about a potential malware threat on a user’s computer. In order to get a detailed information about this compromise, the analyst should review both the logs and Security Information and Event Management (SIEM) system.
In Computer science, logs can be defined as records of events triggered by a user, operating system and other software applications running on a computer. Log files are used to gather information stored on a computer such as user activities, system performance and software program.
Security Information and Event Management (SIEM) system is the process of gathering and integration of all the logs generated by a computer from various software application, service, process, or security tool.
These logs collected through the SIEM are shown in a format that is readable by the security analyst and this help in real-time detection of threats.
Hence, logs and SIEM systems are important tools for network security analyst for detection of threats in real-time and event management functions.
php Exercise 3: Function Write a function named word_count that accepts a string as its parameter and returns the number of words in the string. A word is a sequence of one or more non-space characters (any character other than ' '). For example, the call of word_count("hello, how are you?") should return 4. Constraints: • Do not use any data structures such as arrays to help you solve this problem. • Do not use the String function explode on this problem. • But you can declare as many simple variables like Integer, String, etc. as you like. Keep it simple.
Answer:
<?php
function word_count($string){ // function that takes a string a parameter and returns the number of words in that string
$space = 0; // this variable is used in order to detect space, new line and tab spaces in a string
$words = 1; // this variable is used to identify word presence in string
$include = $space; //used to maintain the state of $words and $space
$counter = 0; // this counts the number of words in the string
$i = 0; //this moves through each character of the string
while ($i < strlen($string)){ // iterates through every character of string until the last character of string is reached
if ($string[$i] == " "||$string[$i] == "\n" || $string[$i] == "\t") //if the space or new line or tab space is identified in the string
$include = $space; //set the state of include as space if the next character is a space newline or a tab space
else if ($include == $space) { //if next character is a word and current state i.e. $include holds $space
$include = $words; // then set the state i.e. $include as $words
++$counter; } //increments i to move to next character at each iteration
++$i; } //returns the number of words in a string
return $counter; }
$str = "Hello, how are you "; //sample string
echo "Words: " . word_count($str); // calls word_count function to return number of words in str.
?>
Explanation:
The program has a function word_count that accepts a string as its parameter and returns the number of words in the string. In the function there are three variables $space and $words and $include used as state variables. For instance $space identifies space, new line and tab spaces in the $string so it specifies that a space has occurred. $words identifies words in the $string so it specifies that a word has occurred. $include holds this state information. $i moves through every character of the $string and when a space occurs in the $string then the state $include is set to $space. When a word occurs then state $include is set to $words. $counter variable, which is used to count the number of words is incremented to 1 when previous state is $space and next character is a word character. Every time a word is seen in the string, this variable is incremented to 1 to keep track of number of words in the string. When $i reaches the end of the string then this loop stops and counter returns the number of words in the $string.
Those with good motor skills are often described as having ...
A. good coordination.
B. poor coordination.
C. athletic coordination,
In the above case, those with good motor skills are often described as having good coordination.
What is good coordination?A coordination skill is known to bee the ability of a person to look at many moving pieces and derive a plan for all the pieces to be put together.
Therefore, In the above case, those with good motor skills are often described as having good coordination.
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Rijndael, AES, CCMP are same as well as different. They are same in terms of how encryption is done and different in terms of whether each one is a protocol, algorithm or a standard.CCMP is both, a protocol and a standard, Rijndael is:_________ a) standard only b) an algorithm c) a communications protocol. d) patented by US Government
Answer:
Option (b) is the correct answer to this question.
Explanation:
AES is based on Rijndael Algorithm.
The Rijndael algorithm enables a choice of block sizes and key sizes. The choices are for each of 128, 192, or 256 bits. Once NIST implemented Rijndael for AES, it only specified one block size,128 bits, but maintained three major lengths of selection. IEEE 802.11I go a step and further limits when both the main size and length of the block for 128 bits. It simplifies deployment and relieves users during development from having to make yet again another decision.
Other options are incorrect because they are not related to the given scenario.
For vulnerable road users, the areas where roadways transition from one environment to another are...
A. the safest areas.
B. the most clearly marked areas.
C. the most dangerous areas.
For vulnerable road users, the areas where roadways transition from one environment to another are the most dangerous areas. Thus the correct answer is C.
What is the environment?An environment is refers to surroundings in which all the living and nonliving objects exist to survive life. This includes humans, animals, plants, and other resources.
the areas where roadways transition from one environment to another are the most dangerous areas because here drivers first recognize an approaching change in the nature of the roadway and then reduce their speed as appropriate.
Therefore, option C is appropriate.
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Implement the function:
string get_ap_terms(int a, int d, size_t n);
which returns a string containing the first n terms of the arithmetic progression (AP) as a sequence of comma-separated values.
Answer:
This is written in C++
Check comments for explanations
Program starts here
#include<iostream>
#include<string>
using namespace std;
//The function get_ap_terms begins here
string get_ap_terms(int a, int d, int size_tn)
{
// This line initializes the expected string to empty string
string result = "";
//The for iteration loops through the number of terms the function is expected to return
for(int i = 1; i<= size_tn;i++)
{
//This line checks if the loop is less than the number of terms
if(i < size_tn)
{
//This string gets the current term of the progression
result+=to_string(a)+ ", ";
//This line calculates the next term
a+=d;
}
else
{
//This line calculates the last term
result+=to_string(a);
}
}
//This line returns the string containing the first n terms of the arithmetic progression
return result;
}
//The main function starts here
int main()
{
//This line declares the first term (a), the common difference (d) and the number of terms (size_tn)
int a,d,size_tn;
//This line prompts the user for the first term
cout<<"First Term: ";
//This line gets the first term
cin>>a;
//This line prompts the user for the common difference
cout<<"Common Difference: ";
//This line gets the common difference
cin>>d;
//This line prompts the user for number of terms
cout<<"Number of Terms: ";
//This line gets the number of terms
cin>>size_tn;
//This line calls the function to print the string containing the first n terms
cout<<get_ap_terms(a, d, size_tn);
return 0;
}
//Program ends here
If you have taken any drugs, it's not safe to drive.
A. True
B. False
Answer:
True
Explanation:
It is risky to drive while you are on drugs!
James has a USB flash drive that he has used at work. The drive needs to be thrown away, but James wants to make sure that the data is no longer on the drive before he throws it away. What can James use to wipe the data clean?
a. Zero-fill utility
b. Format the drive
c. ATA Secure Erase
d. Smash the USB drive
Answer:
C. ATA Secure Erase
D. Smash the USB drive
Explanation:
Zero fill utility is a specialized way of formatting a storage device particularly secondary storage such as hard disk, flash drive e.t.c. In this process, the disk contents are overwritten with zeros. Once this has been done, undoing is essentially hard but possible. In most cases, this might just mean that the data content is corrupt and as such might still be recovered, maybe not in its pure entirety.
Formatting the drive on another hand does not essentially mean cleaning the drive and wiping off data. It just means that operating systems cannot see those data contents anymore. They are still present in the drive and can be recovered.
ATA Secure Erase is actually a way of completely and permanently erasing the content in a drive. Once the function has been done, undoing is not possible. Both the data content and even the data management table will be completely gone.
Smashing the USB drive is the surest way of cleaning data as that will permanently destroy the working components of the drive such as the memory chip. And once that happens then there's no drive let alone its contents.
All the protocol layers of the internet (Application, Transport. Network) were originally without any security. TLS is one of the security architectures added later. In the Internet protocol stack. TLS is located:________. 1. right above the application layer 2. right below the application layer 3. right below the transport layer 4. right above the IP layer
Answer:
2. right below the application layer
Explanation:
TLS (Transport Layer Security) is an improved and more secured version of the SSL (Secure Socket Layer) used as cryptographic protocol for providing authentication and encryption over a network. It is initialized at the transport layer of the IP stack and finalized at the application layer. In other words, it is located between the transport and application layer of the Internet protocol stack. And this is necessary so that data received in the application layer from the transport layer are protected from start to end between these two layers.
Therefore, it is safe to say that the TLS is located right below the application layer.
A Solutions Architect needs to build a resilient data warehouse using Amazon Redshift. The Architect needs to rebuild the Redshift cluster in another region. Which approach can the Architect take to address this requirement
Answer:
Explanation:
An Amazon Redshift data warehouse refers to a collection of computing resources that are known as nodes. These nodes are organized into a group called a cluster. In order to correctly replicate/rebuild this cluster in another region, the Architect needs to modify the Redshift cluster to take snapshots of the Amazon EBS volumes each day, sharing those snapshots with the other region. These snapshots will provide accurate and up-to-date information allowing for a correct rebuild of the Redshift cluster.
If your computer freezes on a regular basis and you checked your hard drive and you have insufficient space you've not installed any software that could cause disruption you have recently added more around so you realize that you have enough memory and that isn't causing a problem what could you do to check next? A) Ensure that the computer is disconnected from the internet by removing any Ethernet cables. B) Use scandisk to ensure that the hard drive is not developing errors or bad sectors. C) Replace the CPU and RAM right away. D) Install additional fans to cool the motherboard.
Answer:
d
Explanation:
If your computer freezes on a regular basis, and you have enough memory and that isn't causing a problem. You should install additional fans to cool the motherboard. The correct option is D.
What is computer freezing?Computer freezing means the computer is not running smoothly. It is causing concerns in opening any application or running software. It is also called computer hanging. The freezing can occur due to the heating of the motherboard. The addition of the fans would be good.
Freezing on the computer happens when the memories of the computer are full, or any virus has been installed on the computer. Hanging or freezing of computers can be avoided by emptying some data or installing an antivirus.
Thus, the correct option is D. Install additional fans to cool the motherboard.
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DOLLAR GENERAL
x
Knowledge Check
Non-employees are allowed in the store before the store opens and after
closing time.
True
False
SUBMIT
Answer:
False
Explanation:
Unless authorized by a manager. Only staff members are allowed in the store before and after normal store hours.
Answer:
The correct answer is
False
If you are not an employee you are not allowed in stores before opening hours or after closing time. The only times non-staff are allowed in the store is for purchasing of products during hours of operation.h
Hope this helps!
The is_positive function should return True if the number received is positive, otherwise it returns None. Can you fill in the gaps to make that happen?
The is_positive function should return True if the number received is positive, otherwise it returns None. Can you fill in the gaps to make that happen?
def is_positive(number):
if _____ :
return _____
Answer:
def is_positive(number):
if (number > 0):
return True
else:
return "None"
---------------------------------------------------------------------------------
Code Test and Sample Output:print(is_positive(6))
>> True
print(is_positive(-7))
>> None
----------------------------------------------------------------------------------
Explanation:The code above has been written in Python.
Now, let's explain each of the lines of the code;
Line 1: defines a function called is_positive which takes in a parameter number. i.e
def is_positive(number):
Line 2: checks if the number, supplied as parameter to the function, is positive. A number is positive if it is greater than zero. i.e
if (number > 0):
Line 3: returns a boolean value True if the number is positive. i.e
return True
Line 4: defines the beginning of the else block that is executed if the number is not positive. i.e
else:
Line 5: returns a string value "None" if the number is not positive. i.e
return "None"
All of these put together gives;
===============================
def is_positive(number):
if (number > 0):
return True
else:
return "None"
================================
An example test of the code has also been given where the function was been called with an argument value of 6 and -7. The results were True and None respectively. i.e
print(is_positive(6)) = True
print(is_positive(-7)) = None
Following are the python program to check input number is positive or negative:
Program:def is_positive(n):#defining the method is_positive that takes one variable in parameter
if (n > 0):#defining if block that check input number is positive
return True#return boolean value that is True
else:#else block
return "None"#return string value
n=int(input("Enter number: "))#defining n variable that input a number
print(is_positive(n))#using print method that calls and prints method return value
Output:
please find the attached file.
Program Explanation:
Defining the method "is_positive" that takes one variable "n" in the parameter.Inside the method, if conditional block is defined that checks the input number is positive, if it's true, it will return a boolean value that is "True". Otherwise, it will go to the else block, where it will return a string value that is "None".Outside the method, the "n" variable is declared to be an input number.After the input value, a print method is used that calls the "is_positive" method and prints its return value.Find out more about the method here:
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The blank function returns to the first character or characters in a text string based on the number of characters specified??? A. PROPER B. MID C. LEN D. LEFT
Answer: D.) LEFT
Explanation: LEFT is an excel function allows users to extract a specified number of characters starting from the left. The syntax goes thus :
=LEFT(text, [num_chars])
text: the original string in which characters are to be extracted.
num_chars : takes an integer, stating the number of characters to extract.
The proper function is also an excel function which sets the first character in each word to uppercase. The mid function is also used in text extraction starting from any position in the original string based on what is specified.
The LEN function is used to get the number or length of characters in a string.