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DerKrebs [107]
2 years ago
5

What is ransomwareя​

Computers and Technology
1 answer:
Novosadov [1.4K]2 years ago
5 0

Answer:

Ransomware is malicious software that infects your computer and displays messages demanding a fee to be paid in order for your system to work again. It has the ability to lock a computer screen or encrypt important, predetermined files with a password.

Explanation:

:)

You might be interested in
You want to allow members of the users group to use fdisk on the /dev/sda drive (and only that drive) and to use the yum command
masya89 [10]

Answer:

su ,sg and sudo command.

Explanation:

Whenever the user needs to enable workgroup mates should use fdisk including just that disk on both the /dev / sda disk, using the following command to update and configure the following packages. Thus he uses the command su, sg, and sudo.

So, the following commands are required according to the following statement.

6 0
3 years ago
Consider the following statements regarding computer programs A - Variables can contain different values at different times.B -
jeka94

Answer:

The answer is: Only A is correct.

Explanation:

Variables in a program can assume different values at different times, and the program can then produce different results, depending on circumstances, so A is correct.

In a computer language, a reserved word (also known as a reserved identifier) is a word that cannot be used as an identifier, such as the name of a variable, function, or label – it is "reserved from use". This is a syntactic definition, and a reserved word may have no meaning. So, B is incorrect.

Hence, the answer is: Only A is correct.

6 0
3 years ago
The following SQL statement uses a(n) _____. SELECT P_CODE, P_DESCRIPT, P_PRICE, V_NAME FROM PRODUCT, VENDOR WHERE PRODUCT.V_COD
Trava [24]

Answer:

The answer is c. “old-style” join.

Explanation:

SELECT P_CODE, P_DESCRIPT, P_PRICE, V_NAME

FROM PRODUCT, VENDOR

WHERE PRODUCT.V_CODE = VENDOR.V_CODE;

The SELECT clause represents all the columns to be displayed.

The FROM clause represents the tables which are used to extract the columns.

The WHERE clause shows the common column that exists in both the tables. This represents the old-style join when JOIN keyword was not used.

The tables are joined in two ways.

1. Using JOIN keyword

The syntax for this is given as

SELECT column1, column2

FROM table1 JOIN table2

ON table1.column3 = table2.column3;

This returns all rows from two tables having the same value of common column.

Two tables are taken at a time when JOIN keyword is used.

If more tables are to be used, they are mentioned as follows.

SELECT column1, column2

FROM table1 JOIN table2

ON table1.column3 = table2.column3

JOIN table3

ON table3.column4 = table1.column4

( ON table3.column5 = table2.column5 )  

The part in italics shows that the third table can either share the same column with table1 or table2.

The given query can be re-written using JOIN as shown.

SELECT P_CODE, P_DESCRIPT, P_PRICE, V_NAME

FROM PRODUCT JOIN VENDOR

ON PRODUCT.V_CODE = VENDOR.V_CODE;

2. Equating common column in WHERE clause

SELECT column1, column2

FROM table1, table2

WHERE table1.column3 = table2.column3;

This returns all rows from two tables having the same value of the common column.

Here, no keyword is used except the general syntax of the query. ON keyword as shown in the above example is replaced with WHERE.

Tables to be used are mentioned in FROM clause separated by commas.

Tables are joined based on the same column having same values.

Multiple tables can be joined using this style as follows.

SELECT column1, column2

FROM table1, table2, table3, table4

WHERE table1.column3 = table2.column3

AND table3.column5=table1.column5

AND table3.column4 = table2.column4;

5 0
3 years ago
Write a recursive Scheme function merge(firstNameList, lastNamelist) that receives a simple list of first names and a simple lis
miv72 [106K]

Answer:

Write a recursive Scheme function power(A, B) that takes two integer parameters, A and B, and returns A raised to the B power. A must be a positive value, but B maybe a negative value.

Explanation:

7 0
3 years ago
In 2000, operating a basic internet application cost businesses approximately _____ per month. In mid-2016, operating the same a
anyanavicka [17]

Answer:

In 2000, a basic internet application cost businesses approximately $150,000 per month. In mid-2016, operating the same application in Amazon's cloud cost approximately $1,000 per month.

Explanation:

The role of cloud services cannot be overemphasized. Providing Infrastructure as a service (IaaS), Platform as a service (PaaS) and Software as a service (SaaS) cost a lot as there were very few cloud service providers and most services were yet to be integrated to the cloud.

But as at 2016, the cost on applications dropped as we have experienced an exponential growth in cloud services and applications, we now have Internet of Things (IoT) and other cloud infrastructure.

4 0
3 years ago
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