Answer:
"Quotes"
Slashes \//
How '"confounding' "\" it is!
Explanation:
The question above is testing your knowledge of the "\" escape sequence, This escape sequence is used to introduce special formatting to the output of the System.out.print function in Java.
It can be used to introduce a new line \n
It can also be used to introduce a tab indentation \t
As in the question above it is used to introduce double quotes "" in this case \"
Also as we see the question above it can still be used to place backlashes to an output in this case we use two backlashes \\. The first is the escape sequence, the second \ gets printed out.
Answer:
False
Explanation:
Targeted attacks are usually harder because if someone has a password that is 1234 and you try it on 100 computers, you most likely will get someones password. If you are targetting a select computer with a strong password it is much harder to brute force or guess.
Answer:
True
Explanation: so that everything we want is available that is why we can customize our interface.
I guess you talk about Excel. I'm pretty sure that that the path to the cell styles button looks like this <span>home tab | styles group. It's the most common pass. But in other cases, it depends on the software you use.</span>
Answer:
Let f be a function
a) f(n) = n²
b) f(n) = n/2
c) f(n) = 0
Explanation:
a) f(n) = n²
This function is one-to-one function because the square of two different or distinct natural numbers cannot be equal.
Let a and b are two elements both belong to N i.e. a ∈ N and b ∈ N. Then:
f(a) = f(b) ⇒ a² = b² ⇒ a = b
The function f(n)= n² is not an onto function because not every natural number is a square of a natural number. This means that there is no other natural number that can be squared to result in that natural number. For example 2 is a natural numbers but not a perfect square and also 24 is a natural number but not a perfect square.
b) f(n) = n/2
The above function example is an onto function because every natural number, let’s say n is a natural number that belongs to N, is the image of 2n. For example:
f(2n) = [2n/2] = n
The above function is not one-to-one function because there are certain different natural numbers that have the same value or image. For example:
When the value of n=1, then
n/2 = [1/2] = [0.5] = 1
When the value of n=2 then
n/2 = [2/2] = [1] = 1
c) f(n) = 0
The above function is neither one-to-one nor onto. In order to depict that a function is not one-to-one there should be two elements in N having same image and the above example is not one to one because every integer has the same image. The above function example is also not an onto function because every positive integer is not an image of any natural number.
