The four services that comprise IT infrastructure are:
Telecommunications services. Data management services . Application software services.Physical facilities management services.What does these services do?Telecommunications services is known to help in terms of giving data, voice, and video network.
Data management services helps to save , manage, and analyze all data. Application software services helps to give firms-wide range capabilities.
The Physical facilities management services helps to make and handle physical installations of technology.
Therefore, The four services that comprise IT infrastructure are:
Telecommunications services. Data management services . Application software services.Physical facilities management services.Learn more about IT infrastructure from
https://brainly.com/question/869476
#SPJ1
2. Which one of the following is the purpose of relating tables in a database?
A. To permit external data only to be viewed.
B. To allow data to be sorted before printing to a report.
C. To enable mathematical calculations to be carried out more efficiently.
D. To avoid duplication of data.
Answer:
D. To avoid duplication of data.
What are fields in a table? What are rows in a table? This is talking about Microsoft Word. What are fields and rows and what are they used for?
NEED ASAP
A fields in a table is known to be a table that contains records (found in rows) and fields (that are found in columns). Fields have a lot of types of data, e.g. text, numbers, and others.
What are the rows in a table?A table is known to be a kind of two-dimensional means that is known to have columns and rows.
Note that the columns are said to be fields and the rows are are said to be records. A record fields is said to be made up of a lot of data, like information about a specific employee or product and others
Learn more about fields from
https://brainly.com/question/14789161
#SPJ1
3. Write an algorithm to find Area of square?
A square is simply a rectangle with equal sides. As a result, the length and breadth of a square are equal. As a result, the area of a square is the product of two square sides, or in simpler terms, squares of the side.
Area = Side^{2}Area=Side
2
We use the following formula to compute the area of a rectangle after being given the length and width of the rectangle as input.
ALGORITHM:
Step 1 : Start
Step 2: Input Side
Step 3: Area = Side \times× Side
Step 4: Print area
Step 5: Stop
Why should we apply print preview before printing the document.
to helps them to see how the final printed material will appear.
a transmitter is operating at 150 MHz with a power of 3 W into a one-quarter wavelength vertical antenna. The receiver, which is 32.2 km away, has an antenna with a gain of 8 dB. What is the received power?
The received power will be 1.243 nW
We're given:
frequency [tex]f[/tex] = 150MHz
distance of the receiver [tex]d[/tex] = 32.2 km=32200m
Power of transmitter [tex]P_{t}[/tex] = 3W
Antenna gain = 8dB
To find :
Power received [tex]P_{r}[/tex]
[tex]P_{r}= \frac{P_{t} *G_{t}*G_{r}* \lambda^2 }{16*\pi^2*d^2}[/tex]
where [tex]G_{t[/tex] is transmit gain and [tex]G_{r[/tex] is receive gain as refrenced to isotropic source
⇒wavelength [tex]\lambda = \frac{c}{f}[/tex] where c is the speed of the light
⇒ [tex]\lambda = \frac{3*10^8}{150*10^6} =2m[/tex]
[tex]G_{t}= 1*1.64[/tex] ( value of [tex]dipole[/tex] = 1.64)
Now,
Antenna gain[tex]=8dB[/tex] ( in decibals)
⇒[tex]10log(x)=8[/tex]
⇒[tex]x=10^0^.^8=6.3095[/tex]
⇒ considering isotropic receiver
⇒[tex]G_{r}=6.3095*1.64=10.3477[/tex] ([tex]dipole[/tex] =1.64)
Now , using the formula
[tex]P_{r}= \frac{3 *1.64*10.3477 *2^2 }{16*\pi^2*32200^2}=1.2437*10^-^9[/tex]
Hence The received power will be 1.243 nW
Leaen more about communication devices here:
https://brainly.com/question/14530107
#SPJ10
4.24 LAB: Exact change
Write a program with total change amount as an integer input, and output the change using the fewest coins, one coin type per line. The coin types are Dollars, Quarters, Dimes, Nickels, and Pennies. Use singular and plural coin names as appropriate, like 1 Penny vs. 2 Pennies.
Ex: If the input is:
0
or less than 0, the output is:
No change
Ex: If the input is:
45
the output is:
1 Quarter
2 Dimes
The Exact change program is an illustration of conditional statements;
Conditional statements are used to make decisions
The Exact change programThe Exact change program written in java programming language, where comments explain each action purposes
import java.util.*;
public class Money{
public static void main(String [] args){
Scanner input = new Scanner(System.in);
// Declare Variables
int amount, dollar, quarter, dime, nickel, penny;
// Prompt user for input
System.out.print("Amount: ");
amount = input.nextInt();
// Check if input is less than 1
if(amount<=0) {
System.out.print("No Change"); }
else {
// Convert amount to various coins
dollar = amount/100; amount = amount%100;
quarter = amount/25; amount = amount%25;
dime = amount/10; amount = amount%10;
nickel = amount/5; penny = amount%5;
// Print results
if(dollar>=1) {
if(dollar == 1) { System.out.print(dollar+" dollar\n");}
else { System.out.print(dollar+" dollars\n"); }
}
if(quarter>=1){
if(quarter== 1){System.out.print(quarter+" quarter\n");}
else{System.out.print(quarter+" quarters\n");}
}
if(dime>=1){
if(dime == 1){System.out.print(dime+" dime\n");}
else{System.out.print(dime+" dimes\n");} }
if(nickel>=1){
if(nickel == 1){System.out.print(nickel+" nickel\n");}
else{System.out.print(nickel+" nickels\n");}}
if(penny>=1){
if(penny == 1) {System.out.print(penny+" penny\n");}
else { System.out.print(penny+" pennies\n"); }}}}}
Read more about conditional statements at:
https://brainly.com/question/11073037
#SPJ1
(e) The entries in each column of the array A are sorted into strictly increasing order.
(f) The entries in any two consecutive columns of the array A are distinct.
(g) At least one of the entries in the array is divisible by 3 and has remainder 1 when divided by 5.
2. Decide whether each of the above statements is True or False. If False, provide an example to demonstrate why.
3. Describe how you decided the truth value of each statement. E.g., did you use any technology to assist you, did you work out any of the values, etc.?
What is spy wear on a desk top computer
Answer:
Spyware is when a hacker gathers confidential information and data by logging the user's key presses (keylogging) etc and uses it for fraud or identity theft. That's also why touchscreens are safer than keyboards.
Explanation:
importance of software in computer
Answer:
It allows accomplishing functions using the computer. The software is the instruction we want the computer to process for us.
Explanation:
I want to type a letter. I need a software that can interpret my letters in the keyboard and the program can print what I am typing.
Create a scenario of a hypothetical company that needs an information system. This scenario should include the following information:
a) Size of the project
b) Staff/experts availability
c) System level of criticality
- Then explain the development methodology (waterfall, agile …etc.) would you choose in this case? Why?
A hypothetical company that needs an information system is Memphis drilling and construction company.
What is the size of a project?This is known to be the the number of firms taking part in the project and thus in the case above, it is small project.
In terms of Staff/experts availability, there are experts from the mining industry with years of experience, soil survey analyst as well as other minor staff.
In terms of System level of criticality, it is big because the extent to drilling will make use of the information system and other major decisions made.
Learn more about information system from
https://brainly.com/question/14688347
#SPJ1
4. The volume of a sphere is (4.0/3.0)rr3 and the surface area is 4.0rr2, where r is the radius of
the sphere. Given the radius, design an algorithm that computes the volume and surface area of
the sphere. (You may assume that T-3.141592) (Exercise#17)
An algorithm that computes the volume and surface area of this sphere include:
Get the radius.Calculate the volume.Calculate the surface area.What is an algorithm?An algorithm is a standard formula which comprises a set of finite steps and instructions that must be executed in order to proffer solutions to a problem on a computer, under appropriate conditions.
For this exercise, an algorithm that computes the volume and surface area of this sphere is as follows:
Get the radius.Calculate the volume.Calculate the surface area.Read more on algorithm here: brainly.com/question/24793921
$SPJ1
Q For each of the following words identify the byte that isstored at lower memory address and the byte that is stored athigher memory address in a little endian computer.
a. 1234
b. ABFC
c. B100
d. B800
An array called numbers contains 35 valid integer numbers. Determine and display how many of these values are greater than the average value of all the values of the elements. Hint: Calculate the average before counting the number of values higher than the average
python
Answer:
# put the numbers array here
average=sum(numbers)/35 # find average
count=0 #declare count
for i in numbers: #loop through list for each value
if i > average: #if the list number is greater than average
count+=1 #increment the count
print(count) #print count
what will happen if I upgrade my asus crosshair v formula-z motherboard to a asus rog strix b450-f motherboard?
Answer: A lot will happen
Explanation:
If you will upgrade your laptop, that means it will get better in performance and a lot of other things....
Also, if the laptop has the word formula, you know that's a good thing, especially if it's z, which is the last letter in the alphabet.
And the other letters are something that I don't understand especially the Strix b450-f part..
Hope I helped a lotttt...
Can someone please tell me how to do this step by step?
ASAP
The steps that are required to customize elements of a Word document and its formatting to be consistent with other magazine articles are listed below.
How to customize elements and format a document?In Microsoft Word 2019, the steps that are required to customize elements of a Word document and its formatting to be consistent with other magazine articles include the following:
You should apply a style set.You should change the color of an underline.You should use the Thesaurus.You should change the character spacing, change the font color and update a style.You should apply a character style.You should change the font case.You should insert a Quick Part.You should insert a table of contents.You should change the table of content (TOC) level.You should apply a style.You should update the table of contents.In conclusion, the end user should update the table of contents as the last step, so as to reflect the change to his or her Word document.
Read more on Microsoft Word here: https://brainly.com/question/25813601
#SPJ1
Complete Question:
As the owner of On Board, a small business that provides orientation services to international students, you are writing an article about starting a business that will be published in an online magazine for recent college graduates. You need to customize elements of the document and its formatting to be consistent with other magazine articles. What are the steps?
The layer of the ISO/OSI responsible for source to destination delivery.
Options:
(a) transport
(b) network
(c) data-link
(d) session
Answer:
(b) network
Explanation:
The Network Layer is the OSI Model's third layer. It is in charge of packet transport from source to destination or host to host across various networks. The layer receives data from the transport layer, adds a header to it, and sends it to the data link layer.
Which of the following is not a valid technique to create a function stub?
a.
Use a pass statement
b.
Raise NotImplementedError
c.
Print a "FIXME" message and return -1
d.
Leave the function body empty
An option which isn't a valid technique to create a function stub is to: D. leave the function body empty.
What is a function stub?A function stub can be defined as a type of function that can be called safely without an error. However, a function stub has no definition because it doesn't actually perform any action when called.
In this context, leaving the function body empty is an option which isn't a valid technique to create a function stub.
Read more on function stub here: https://brainly.com/question/17214711
#SPJ1
Write a program to print each item in the list of your favourite ice cream. please give proper answers.
Answer:
Python
Explanation:
#List Favorite ice-cream
ice_cream = ["Pistachio", "Cookies and cream", "Chocolate", "Banana split" , "Vanilla"]
for flavor in ice_cream:
print(flavor)
Trent is researching what it would take to become a pharmaceutical scientist. What academic requirements should he complete?
A.
an associate’s degree
B.
on-the-job training
C.
technical school
D.
a doctorate degree
E.
a bachelor’s de
Trent is researching and for Trent to become a pharmaceutical scientist, he needs to complete a doctorate degree. hence, Option D is the correct answer.
What degree is a doctorate?A doctorate degree can be defined as the best-earned academic degree in U.S postsecondary education. Doctoral tiers usually take 4 or greater years to complete, and the number of credits required for completion can also additionally range relying on the program.
hence, Trent is researching and for Trent to become a pharmaceutical scientist, he needs to complete a doctorate degree. Option D is the correct answer.
Learn more about doctorate degree:
https://brainly.com/question/21974838
#SPJ1
E. Write an algorithm to show 'How to prepare a cucumber sandwich?".
Answer:
Place slices of bread on plate, side by side...
Postcondition: Sandwich is ready to eat.
Step 1: Start with the number 1.
Step 2: find another person and form a pair.
Step 3: add your numbers together.
Step 4: one person from the pair sits down.
Step 5: the other person goes back to step 2.
What is the result of the following code?
int x = 1;
switch(x)
{
case 1: printf( "Help" );
case 0: printf( "Me" );
break;
case 2: printf( "Hello World" );
}
A. HelpMe
B. Help
C. Help Me
D. Hello World
Answer:
B: Help
Explanation:
During the execution of this switch statement, it will print "Help" because that's the only case that matches the value of x, it will not print "Me" because that case does not match, so it will fall through that case into the break statement.
Explain how cache (SRAM) can support CPU pipelining.
Answer:
The Pipeline Burst Cache is basically a storage area for a processor that is designed to be read from or written to in a pipelined succession of four data transfers. As the name suggests 'pipelining', the transfers after the first transfer happen before the first transfer has arrived at the processor.
If x = 5 and y = 7, will statement if(x!=y) execute?
A. yes
B. no
If 294.00 units are made and demand is 287.00. Your fixed expenses are $1257.00. Your variable cost per unit is $2.25. Your Sales price is 6.49. The variable expenses for the day is?
If the 294.00 units are made and the cost per unit is $2.25 then variable expenses for the day is $661.5.
Given that 294.00 units are made and the variable cost per unit is $2.25
We have to find variable expenses for the day.
Total variable expenses for the day are a product of the output and the variable cost per unit.
So the variable expenses = no. of output x variable cost per unit
Variable expenses = 294 x 2.25
Variable expenses = 661.5
Hence the variable expenses for the day is $661.5
Learn more about variable expenses here: https://brainly.com/question/8225307
#SPJ10
Where can you get help to create citations for ProQuest articles?
Select one:
a.
By checking the USP handbook
b.
All of the above
c.
By using ProQuest's "CITE" button
d.
By checking your writing textbook
The layer of ISO/OSI that enables someone to access network is
Options:
(a) application
(b) data-link
(c) physical
(d) session
Answer:
The network layer essentially enables a user to connect to the internet or any available network. From what I understand, the session layer should be the answer since it primarily means establising a connection with a server which only takes place over a network.
Explanation:
what are differences between Ram and Rom?
Answer:
RAM, which stands for random access memory, and ROM, which stands for read-only memory, are both present in your computer. RAM is volatile memory that temporarily stores the files you are working on. ROM is non-volatile memory that permanently stores instructions for your computer.
Explanation:
Answer:
RAM is random access memory - we can have it even after we shut down the computer. it is volatile .it stores temporarily.
ROM - Read only memory. it is non volatile memory. we can only have it until computer is turn on. after that it's gone.it stores memory permanently
Review 03 diagnostic and troubleshooting skills including data gathering methods and techniques.
The kinds and ways to improve your diagnostic and troubleshooting skills are:
Be Relax and never panic when you encounter it.Know everything about your computer. Look for solutions and clues and state them down. Find out the repeatability.What is diagnostic and troubleshooting?Diagnosing is known to be the act of finding out the root cause of any issue through an act of elimination but troubleshooting is known to be the act of fixing of the problem after diagnosis is said to have been carried out.
Therefore, The kinds and ways to improve your diagnostic and troubleshooting skills are:
Be Relax and never panic when you encounter it.Know everything about your computer. Look for solutions and clues and state them down. Find out the repeatability.Learn more about troubleshooting skills from
https://brainly.com/question/14983884
#SPJ1
Is computer doing more good than harm or more harm than good
Answer:
yes computer do more good also if we use safely if we don't use safely computer harm also
When does if(x==y) execute?
A. when x is equal to y
B. when x does not equal y
C. never, it is just a check to see if x is equal to y
Answer:
A. When x is equal to y
