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Mariana [72]
2 years ago
12

Which of the following statement is true? Single choice. (2 Points) Views are virtual tables that are compiled at run time All o

f the Mentioned Views could be looked as an additional layer on the table which enables us to protect intricate or sensitive data based upon our needs Creating views can improve query response time
Computers and Technology
1 answer:
Elenna [48]2 years ago
8 0

Answer:

All of the mentioned views could be looked as an additional layer in the table which enables us to protect intricate or sensitive data based upon our needs.

Explanation:

View is a virtual table which executed a pre compiled query. It is a table in which selective portion of the data can be seen from one or more tables. Queries are not allowed in indexed views and adding column is not possible. Views can be looked as an additional layer in the virtual table which protects sensitive data.

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An organization is implementing a preselected baseline of security controls, but finds not all of the controls apply. What shoul
WINSTONCH [101]

The answer is Tailoring the baseline to their needs.

After an organization selects applicable security control baseline but finds not all of the controls apply, it initiates a tailoring process to modify the controls appropriately and more closely with specific conditions related to organizational missions, information systems or environments of operation. It is an integral part of the security control selection and specification and involves risk management processes like assessing, responding to, and framing.

8 0
3 years ago
Write two separate formulas using different commands that concatenate " john and "smith" together to form " John Smith"
VladimirAG [237]

Answer:

1. =CONCATENATE(" John"," ","Smith")

2. =(" John"&" "&"Smith")

Explanation:

Given

Two separate strings; "John" and "Smith"

Required

2 separate formulas to concatenate both strings to form " John Smith"

There are several ways to concatenate strings in Microsoft Office Excel; one of the methods is using the concatenate function while the another method is using the traditional & operator.

Using the concatenate function, the formula is as follows

=CONCATENATE(" John"," ","Smith")

This function will combine the " John", " " and "Smith" to give a new string " John Smith" (without the quotes).

Using the traditional & operator may be a little bit difficult (and not frequently used) but the formula is as follows;

=(" John"&" "&"Smith")

The result will be the same as (1) above

5 0
2 years ago
Before entering a loop, the first input, or ____, is retrieved.
Virty [35]

Loop is a control structure that causes a statement or group of statements to repeat.Before entering a loop, the first input, or the accumulator where the total will be kept is retrieved to an initial value, usually zero.

3 0
3 years ago
You are given a list of n positive integers a1, a2, . . . an and a positive integer t. Use dynamic programming to design an algo
Anna11 [10]

Answer:

See explaination for the program code

Explanation:

The code below

Pseudo-code:

//each item ai is used at most once

isSubsetSum(A[],n,t)//takes array of items of size n, and sum t

{

boolean subset[n+1][t+1];//creating a boolean mtraix

for i=1 to n+1

subset[i][1] = true; //initially setting all first column values as true

for i = 2 to t+1

subset[1][i] = false; //initialy setting all first row values as false

for i=2 to n

{

for j=2 to t

{

if(j<A[i-1])

subset[i][j] = subset[i-1][j];

if (j >= A[i-1])

subset[i][j] = subset[i-1][j] ||

subset[i - 1][j-set[i-1]];

}

}

//returns true if there is a subset with given sum t

//other wise returns false

return subset[n][t];

}

Recurrence relation:

T(n) =T(n-1)+ t//here t is runtime of inner loop, and innner loop will run n times

T(1)=1

solving recurrence:

T(n)=T(n-1)+t

T(n)=T(n-2)+t+t

T(n)=T(n-2)+2t

T(n)=T(n-3)+3t

,,

,

T(n)=T(n-n-1)+(n-1)t

T(n)=T(1)+(n-1)t

T(n)=1+(n-1)t = O(nt)

//so complexity is :O(nt)//where n is number of element, t is given sum

6 0
3 years ago
What is an example of a boolean operator?
Alona [7]
Boolean operators are like AND,or,not,and not .
they are <span>used as conjunctions to combine or exclude keywords in a search, resulting in more focused and productive results.</span>
3 0
3 years ago
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