Answer:
• Network intruders can access all computers on a network.
• Networks are costly to set up.
Explanation:
A network can be defined as a connection between the internet and the computer. A network is a means by which information or data are transmitted from one computer to another.
We have various types of networks and some of them are:
a) Local Area Network (LAN)
b) Wireless Local Area Network (WLAN)
c) Wide Area Network (WAN)
d) Campus Area Network (CAN)
e) Metropolitan Area Network (MAN)
f) Personal Area Network (PAN) e.t.c
The disadvantages of network are:
a) Network intruders such as computer hackers can easily access all computers on a network.
b) Networks are costly to set up.
It is of outermost importance that a network used by a computer is secured using security such as encryption in other to prevent data loss , hackers and exposure of information that are sensitive to computer users.
Answer:
A and B
Explanation:
what is the usage of sustainable energy?
Write a Python program to convert the characters to lowercase in a string
Answer:
Following is the program in the python language
st = 'sAN RaN' #String
print(st.lower()) #display into the lowercase
Output:
san ran
Explanation:
Following are the description of program
Declared and initialized the string in the "st" variable .The lower function in python is used for converting the uppercase string into the lower case string .Finally in the print function we used lower function and display the string into the lower caseDoes white space have visual weight? Yes or No
Answer:
no. (more info below)
Explanation:
white space appears to have no visual weight because it's seen as empty. Every body put in the room will appear to be heavier because of the volume surrounding it.
hope this helped!
Answer:
no
Explanation:
it's because it appears to be empty.
Write the UPDATE command to increase the commission (column name :COMM) by 500 of all the salesman who have achieved sales (Column name : SALES) more than 20000. The table’s name is COMPANY?
Answer:
UPDATE COMPANY
SET COMM=COMM + 500
WHERE SALES> 20000;
Explanation:
The update command is used for alter the record in the database management system in the table .The update command command modify the record on the some condition in the table in the database management system.
Following are syntax for using the update command .
UPDATE table-name
SET column name 1,column name 2 .........
Where condition
In the given question table -name is "COMPANY" the condition is on the sales column and it update the table only when sales is more than 20000 and set the column COMM by 500.The UPDATE command that increases the commission column is: UPDATE COMPANY SET COMM=COMM + 500 WHERE SALES> 20000;
The syntax of an UPDATE SQL command is:
UPDATE table_name SET column = value, where condition
From the question, the table name is COMPANY.
So, we have:
UPDATE COMPANY SET column = value, where condition
The update statement is to increment the COMM column by 500.
So, the query becomes
UPDATE COMPANY SET COMM=COMM + 500 WHERE condition
Lastly, only columns where SALES are greater than 20000 should be updated.
So, the complete command is:
UPDATE COMPANY SET COMM=COMM + 500 WHERE SALES> 20000;
Read more about database at:
https://brainly.com/question/15334693
differentiate between analogue and digital devices
Answer:
In analog technology, a wave is recorded or used in its original form. So, for example, in an analog tape recorder, a signal is taken straight from the microphone and laid onto tape. ... In digital technology, the analog wave is sampled at some interval, and then turned into numbers that are stored in the digital device.
Explanation: Got it from google. hehe
Write a program that asks the user to enter the name of an input file. If the file does not exist, the program should prompt the user to enter the file name again. If the user types QUIT in any uppercase/lowercase combinations, then the program should exit without any further output.
Answer:
I can help you with that inbox me
