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, lets 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.
DSL ranges from 128Kbps to 3Mbps, so this would be your bottleneck.
Answer:
B. void setAttributeOne(int newAttributeOne)
{
attributeOne = newAttributeOne
}
Explanation:
The class has two public attributes : int attributeOne and String attributeTwo.
The appropriate setters for these attributes will be as follows:
void setAttributeOne(int newAttributeOne)
{
attributeOne = newAttributeOne
;
}
void setAttributeTwo(int newAttributeTwo)
{
attributeTwo = newAttributeTwo;
}
The highlighted code corresponds to option B among the given options. So option B is the correct setter for attributeOne.
Answer:
Aspects of application security includes all except:____.
D. Requirement Assessment.
Explanation:
The requirement assessment is carried out during the initial development stage to meet the user's requirements. This assessment does not necessarily deal with application security. However, the other three aspects are security-related. They focus on the areas where application security is mostly required to reduce errors and technical weaknesses of a software, including authentication, privacy, access control, data segregation, and error handling.
