Answer: B. Perform a hash on the file for comparison with the vendor’s hash.
Explanation:
Before installing the firmware update, the step that the technician should perform to ensure file integrity is to perform a hash on the file for comparison with the vendor’s hash.
Hashing refers to the algorithm that is used for the calculation of a string value from a file. Hashes are helpful in the identification of a threat on a machine and when a user wants to query the network for the existence of a certain file.
The following pseudocode describes how a widget company computes the price of an order from the total price and the number of the widgets that were ordered. Read the number of widgets. Multiple the number of widgets by the price per widget of 9.99. Compute the tax (5.5 percent of the total price). Compute the shipping charge (.40 per widget). The price of the order is the sum of the total widget price, the tax, and the shipping charge. Print the price of the order
Answer:
The program in Python is as follows:
widget = int(input("Widgets: "))
price = widget * 9.9
tax = price * 0.55
ship = price * 0.40
totalprice = price + tax + ship
print("Total Price: $",totalprice)
Explanation:
The question is incomplete, as what is required is not stated.
However, I will write convert the pseudocode to a programming language (in Python)
Get the number of widgets
widget = int(input("Widgets: "))
Calculate price
price = widget * 9.9
Calculate the tax
tax = price * 0.55
Calculate the shipping price
ship = price * 0.40
Calculate the total price
totalprice = price + tax + ship
Print the calculated total price
print("Total Price: $",totalprice)
A technician is able to connect to a web however, the technician receives the error, when alternating to access a different web Page cannot be displayed. Which command line tools would be BEST to identify the root cause of the connection problem?
Answer:
nslookup
Explanation:
Nslookup command is considered as one of the most popular command-line software for a Domain Name System probing. It is a network administration command-line tool that is available for the operating systems of many computer. It is mainly used for troubleshooting the DNS problems.
Thus, in the context, the technician receives the error "Web page cannot be displayed" when he alternates to access different web page, the nslookup command is the best command tool to find the root cause of the connection problem.
Your IaaS cloud company has announced that there will be a brief outage for regularly scheduled maintenance over the weekend to apply a critical hotfix to vital infrastructure. What are the systems they may be applying patches to
Answer: Load Balancer
Hypervisor
Router
Explanation:
The systems that they may be applying the patches to include load balancer, hypervisor and router.
The load balancer will help in the distribution of a set of tasks over the resources, in order to boost efficiency with regards to processing.
A hypervisor is used for the creation and the running of virtual machines. The router helps in the connection of the computers and the other devices to the Internet.
The compound known as butylated hydroxytoluene, abbreviated as BHT, contains carbon, hydrogen, and oxygen. A 1.501 g sample of BHT was combusted in an oxygen rich environment to produce 4.497 g of CO2(g) and 1.473 g of H2O(g). Insert subscripts below to appropriately display the empirical formula of BHT.
Answer:
C15H24O
Explanation:
n(C) = 4.497 g/44g/mol = 0.1022
Mass of C = 0.1022 × 12 = 1.226 g
n(H) = 1.473g/18 g/mol = 0.0823 ×2 moles = 0.165 moles
Mass of H = 0.0823 × 2 ×1 = 0.165g
Mass of O= 1.501 -(1.226 + 0.165)
Mass of O= 0.11 g
Number of moles of O = 0.11g/16g/mol = 0.0069 moles
Dividing through by the lowest ratio;
0.1022/0.0069, 0.165/0.0069, 0.0069/0.0069
15, 24, 1
Hence the formula is;
C15H24O
Answer
The formula is C1SH240
How are dates and times stored by Excel?
Answer:
Regardless of how you have formatted a cell to display a date or time, Excel always internally stores dates And times the same way. Excel stores dates and times as a number representing the number of days since 1900-Jan-0, plus a fractional portion of a 24 hour day: ddddd. tttttt
Explanation:
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Write a method that prints on the screen a message stating whether 2 circles touch each other, do not touch each other or intersect. The method accepts the coordinates of the center of the first circle and its radius, and the coordinates of the center of the second circle and its radius.
The header of the method is as follows:
public static void checkIntersection(double x1, double y1, double r1, double x2, double y2, double r2)
Hint:
Distance between centers C1 and C2 is calculated as follows:
d = Math.sqrt((x1 - x2)2 + (y1 - y2)2).
There are three conditions that arise:
1. If d == r1 + r2
Circles touch each other.
2. If d > r1 + r2
Circles do not touch each other.
3. If d < r1 + r2
Circles intersect.
Answer:
The method is as follows:
public static void checkIntersection(double x1, double y1, double r1, double x2, double y2, double r2){
double d = Math.sqrt(Math.pow((x1 - x2),2) + Math.pow((y1 - y2),2));
if(d == r1 + r2){
System.out.print("The circles touch each other"); }
else if(d > r1 + r2){
System.out.print("The circles do not touch each other"); }
else{
System.out.print("The circles intersect"); }
}
Explanation:
This defines the method
public static void checkIntersection(double x1, double y1, double r1, double x2, double y2, double r2){
This calculate the distance
double d = Math.sqrt(Math.pow((x1 - x2),2) + Math.pow((y1 - y2),2));
If the distance equals the sum of both radii, then the circles touch one another
if(d == r1 + r2){
System.out.print("The circles touch each other"); }
If the distance is greater than the sum of both radii, then the circles do not touch one another
else if(d > r1 + r2){
System.out.print("The circles do not touch each other"); }
If the distance is less than the sum of both radii, then the circles intersect
else{
System.out.print("The circles intersect"); }
}
The _________ attack exploits the common use of a modular exponentiation algorithm in RSA encryption and decryption, but can be adapted to work with any implementation that does not run in fixed time.
A. mathematical.
B. timing.
C. chosen ciphertext.
D. brute-force.
Answer:
chosen ciphertext
Explanation:
Chosen ciphertext attack is a scenario in which the attacker has the ability to choose ciphertexts C i and to view their corresponding decryptions – plaintexts P i . It is essentially the same scenario as a chosen plaintext attack but applied to a decryption function, instead of the encryption function.
Cyber attack usually associated with obtaining decryption keys that do not run in fixed time is called the chosen ciphertext attack.
Theae kind of attack is usually performed through gathering of decryption codes or key which are associated to certain cipher texts The attacker would then use the gathered patterns and information to obtain the decryption key to the selected or chosen ciphertext.Hence, chosen ciphertext attempts the use of modular exponentiation.
Learn more : https://brainly.com/question/14826269
Write a c++ program to find;
(I). the perimeter of rectangle.
(ii). the circumference of a circle.
Note:
(1). all the programs must allow the user to make his input .
(2).both programs must have both comment using the single line comment or the multiple line comment to give description to both programs.
Answer:
Perimeter:
{ \tt{perimeter = 2(l + w)}}
Circumference:
{ \tt{circumference = 2\pi \: r}}
Just input the codes in the notepad
HELP ITS A TESTTT!!!Which symbol shows auto correct is in use?
A-a white light bulb
B-A green plus sign
C-A flashing red circle
D-A yellow lightning bolt
Answer:
D
Explanation:
Reverse Word Order: Write a program that reverses the order of the words in a given sentence. This program requires reversing the order of the words wherein the first and last words are swapped, followed by swapping the second word with the second to last word, followed by swapping the third word and the third to last words, and so on.
Answer:
function reverseArray(arr) {
if (arr.length > 1) {
arr = [arr[arr.length-1], ...reverseArray(arr.slice(1, -1)), arr[0]]
}
return arr;
}
function reverseSentence(sentence) {
let words = reverseArray( sentence.split(" ") );
return words.join(" ");
}
console.log( reverseSentence("The quick brown fox jumps over the lazy dog's back") );
console.log( reverseSentence("one two three") );
console.log( reverseSentence("one two") );
console.log( reverseSentence("Single") );
Explanation:
This is a solution in javascript leveraging several powerful constructs in that language, such as the spread operator.
