Consider the relational schema below: Students(sid: integer, sname: string, major: string) Courses(cid: integer, cname: string, hours: integer) Enrollment(sid: integer, cid: integer, grade: real) Write a relational algebra expression that satisfies this query? Find the distinct names of all students that take at least three courses and major in "Philosophy".

Answer:

Routers

Explanation:

Essentially a router is a device used in networking that route packets of data from one computer network to another.

Answer:

routers

Explanation:

Routers are hardware devices that route the data from place to place. Data "hops" from one router to another until it reaches its destination. ISPs and IP addresses are not hardware devices. Servers are hardware devices but do not route data.

-Edge 2022

Explanation:

Packed BCD ( Binary coded decimal) is type in which each decimal digit is represented by 4 bits ( 1 nibble) . For Example : 14 will be shown as 0001 0100 in packed BCD form. Unpacked BCD is type in which each decimal digit is represented by 8 bits ( 1 byte).

ANSWER:

· New artificial intelligence systems are being developed to help teachers administer more effective testing that could uncover some of these often-hidden conditions. Once they can be properly identified, educators can tap into the resources available for a learning disability. Students can use AI to give reliable feedback.

Answer:

nonrecursive

Explanation:

Answer:

please mark brillient

Answer:

So we can maintain high quality designs at any graphic scale.

Explanation:

Unlike other graphic formats which simply define colors for fixed pixels, vector graphics define points and shapes (vectors) which are then used to draw the graphic at the desired and appropriate resolution.

Our graphic can look good at any resolution, no matter how large it gets. If we take a png or jpg file and make it extremely large, you'll notice the image begins to get blurry, because the pixels are being stretched and colors are being predicted or matched for the larger scale.

Answer:

#include <iostream>

int main() {

 // The length of the list

 int l;

 // The array containing the numbers

 int *list;

 // Threshold, last value in array

 int thresh;

 // Read in first value and create an array with the size of that value

 scanf("%d", &l);

 list = (int*) malloc(l * sizeof(int));

 for(int i = 0; i < l; i++) {

   scanf("%d", &list[i]);

 }

 thresh = list[l - 1];

 // Print the values

 for(int i = 0; i < l - 1; i++) {

   if (list[i] <= thresh) {

     printf("%d ", list[i]);

   }

 }

 printf("\n");

 free(list);

}

Explanation:

The program assumes at least two values are provided. The length of the list and the threshold.

We first read in an integer, and find out how many more integers we need to read. We create an array with the appropriate size, and loop through to fill the array with values. We know the last value is the threshold, and so we do one more loop to compare the values in the array with the threshold.

Answer:

[OPINION]

First one is correct.

For the second one, I think the leader should accept the invitation and forward it to the entire team. [As the team experienced success due to group work, so every team member should be invited... as the success was a result of the hardwork of every member]

About the third one, I think it depends on the person so you may be correct. But, if I was asked to choose I would have been chosen.... rational approach

This is just my opinion. Hope it helps you:)

Answer:

T

Explanation:

Given:

Network IP address [tex]\bold{= 172.149.254.0 /24}[/tex]

Subnet numbers [tex]\bold{= 13}[/tex]

Calculating the borrow bits:

[tex]\to \bold{= ceil(\log_{2} 13) = 4 \ bits}[/tex]

a)

Calculating the dotted decimal value for the subnet mask:

[tex]\to \bold{11111111.11111111.11111111.00000000}\\\\\to \bold{255.255.255.240}\\\\[/tex]

b)

The additional bits which will be needed to mask the subnet mask that is = 4.

Learn more: brainly.com/question/2254014

Answer:

D. WPA2

Explanation:

Required

Of the 4 options, which is the most secured?

WPA was created as a solution to the vulnerabilities in WEP/WEP2. Then, WPA was upgraded to WPA2.

WPA2 is the least vulnerable to hacks because for every user that is connected to the network through WPA2, a unique encryption is made available for such connection.

Hence, the most secure connection, of the 4 is WPA2.

Explanation:

algorithmic thinking - developing a set of instructions or sequence of steps to solve a problem;

evaluation - ensuring a solution is fit-for-purpose;

decomposition - breaking a problem down into its component parts;

The answer is "Option b" which is "id", and its further calculation can be defined as follows:

The wrong choice can be defined as follows:

Therefore "Choice b" is the correct answer.

Learn more:

Linux system: brainly.com/question/3133247

Answer:

The red Mustang should be given the right-of-way at this intersection because:

The red Mustang arrived first before the blue Prius and is closer to the stop sign before the arrival of the blue Prius.  This implies that the red Mustang must have waited for its turn, unlike the blue Prius that just arrived at the intersection.

Explanation:

Traffic laws, regulations, and IPDE defensive driving strategy require that drivers always give way to the vehicle that arrived before them at an intersection.   Assuming that multiple vehicles reach the intersection simultaneously, then the vehicle must be given the right-of-way.  Alternatively, the traffic lights at the intersection should be obeyed and be allowed to regulate the movement of vehicles.  IPDE defensive driving strategy requires drivers to be watchful of their driving spaces to determine the appropriate time to move.

Answer:

no

Explanation:

Answer:

There are two main types of software: systems software and application software. Systems software includes the programs that are dedicated to managing the computer itself, such as the operating system, file management utilities, and disk operating system (or DOS)

Answer:

There are two main types of software: systems software and application software. Systems software includes the programs that are dedicated to managing the computer itself, such as the operating system, file management utilities, and disk operating system (or DOS)

Explanation:

thanks for question

Answer:

1. Network Installation

Explanation:

Given

Options (1) to (4)

Required

Which requires WDS for installation

WDS are used for remote installations where users do not have to be physically present before installations can be done; in other words, it is necessary for network based installations.

Of all the given options, (a) is correct because without WDS, network installation cannot be done.

The type of nested loop which I would use to write the program is:

This refers to the control flow statement which is used to iterate and lets a particular line(s) of code execute repeatedly

With this in mind, we can see that the type of nested loop which I would use to write the program is a "while" loop inside of a "for" loop because it is a conditional statement that continues to ask for the certain valid grades until it gets the right one.

Therefore, the correct answer is option B

Read more about loops here:
https://brainly.com/question/26098908

Answer:

Explanation:

The synchronized keyword needs to be active on the hit method at any point where 2 or more threads (users) exists at any given moment. This is in order to prevent two or more users from trying to perform a hammer hit at the same time. This is what the synchronized keyword is used for. It prevents the more than one thread from calling the specific method at the same time. Instead it adds the action to a sequence so that the second thread calls the hit method only after the first thread's hit method finishes.

Answer:

right click and press control c

For option a:

The baseline register is [tex]\bold{BX}[/tex], while the index register is [tex]\bold{CX+5*AX}[/tex].

For option b:

Its index register is [tex]\bold{CX }[/tex], whereas the base register is [tex]\bold{DX5*DI+30H}[/tex].

Learn more:

brainly.com/question/14319860

Answer:

1.similarity:

3.ergonomics are designed keying devices that alleviates wrist strain experienced when using ordinary keyboard for long hours

4.

Answer:

Images.

Sound.

Hardcopy

…

Answer:

it can be anything like sound or pictures

Explanation:

Answer:

programmers who are competent  in data  structures and algorithms  can easily perform the tasks related  to data processing ,automated reasoning ,or calculations . data structure and algorithms  is significant  for developers  as it shows their problems solving abilities amongst the prospective employers .

Answer:

Code:

CREATE TABLE student (

stu_code INTEGER PRIMARY KEY,

prof_code INTEGER

);

INSERT INTO student VALUES (100278,null);

INSERT INTO student VALUES (128569,2);

INSERT INTO student VALUES (512272,4);

INSERT INTO student VALUES (531235,2);

INSERT INTO student VALUES (531268,null);

INSERT INTO student VALUES (553427,1);

CREATE TABLE professor (

prof_code INTEGER PRIMARY KEY,

dept_code INTEGER

);

INSERT INTO professor VALUES (1,2);

INSERT INTO professor VALUES (2,6);

INSERT INTO professor VALUES (3,6);

INSERT INTO professor VALUES (4,4);

The SQL NATURAL JOIN is a type of EQUI JOIN and is structured in such a way that, columns with the same name of associated tables will appear once only. In our Example, Prof_code will appear only once and it will be matched in both the table;  

SELECT * FROM Student natural join Professor on student.prof_code=Professor.prof_code ;  

Stud_code   Prof_code  Dept_code

128569        2           6

512272        4           4

531235        2           6

553427        1           2

EQUI JOIN performs a JOIN against equality or matching column(s) values of the associated tables and an equal sign (=) is used as a comparison operator in the where clause to refer to equality. In our example, it will only show the result with prof_code=2 from the natural join result.

SELECT * FROM Student join Professor on student.prof_code=Professor.prof_code where student.prof_code=2;

Stud_code Prof_code Prof_code Dept_code

128569     2         2         6

531235     2         2         6

In SQL the FULL OUTER JOIN combines the results of both left and right outer joins and returns all (matched or unmatched) rows from the tables on both sides of the join clause.

SELECT * FROM professor full outer join student on professor.prof_code=student.prof_code ;

Stud_code Prof_code Prof_code Dept_code

100278                

128569    2          2         6

512272    4          4         4

531235    2          2         6

531268    

                    3         6

553427    1          1         2

"Neymar" = "name a"?

if so, well, there are many, like the little glowing box you use the type questions to the brainliest community, let it be a phone, a pc, or a molded Nintendo

if you meant Neymar indeed, I'm not sure if he runs on electricity, unless he is a soccer playing android somehow.

Answer:

hacking is the act of exploitation, and is typically used to steal other people's account. It is a major concern because people can easily lose their account to hackers if they're too gullible, and the hacker can use their victims' accounts to purchase the things that they want with their victims' money.

Answer: demographics

Explanation:

Market segmentation refers to the process of dividing the consumers into sub-groups of consumers which are refered to as the segments based on the characteristics shared.

The examples of a customer's behavior or relationship with a product include user status, usage rate and loyalty status.

It should be noted that some examples of market segmentation are behavioral, demographic, geographic, and psychographic. From the options given, demographics is not an example of a customer's behavior with a product.

Answer:

The updated program in C is as follows:

#include <stdio.h>

union myUnion{ char c; short s; int i; long l; };

int main(){

   union myUnion inputs;

   printf("Character: ");    scanf("%c", &inputs.c);

   printf("Output: %c", inputs.c);

   printf("\nShort: ");    scanf("%hd", &inputs.s);

   printf("Short: %hd", inputs.s);

   printf("\nInteger: ");    scanf("%d", &inputs.i);

   printf("Output: %d", inputs.i);

   printf("\nLong: ");    scanf("%ld", &inputs.l);

   printf("Long: %ld", inputs.l);

   return 0;

   }

The pseudocode is as follows:

Function union myUnion {

character; short; int; long

}

main() {

myUnion inputs;

Input inputs.c;  Print inputs.c

Input inputs.s; Print inputs.s

Input inputs.i; Print inputs.i;

Input inputs.l; Print inputs.l

}

Explanation:

This defines the union function

union myUnion{ char c; short s; int i; long l; };

The main begins here

int main(){

This calls the union function to main

   union myUnion inputs;

This prompts and gets input for character variable

   printf("Character: ");    scanf("%c", &inputs.c);

This prints the character input

   printf("Output: %c", inputs.c);

This prompts and gets input for short variable

   printf("\nShort: ");    scanf("%hd", &inputs.s);

This prints the short input

   printf("Short: %hd", inputs.s);

This prompts and gets input for integer variable

   printf("\nInteger: ");    scanf("%d", &inputs.i);

This prints the integer input

   printf("Output: %d", inputs.i);

This prompts and gets input for long variable

   printf("\nLong: ");    scanf("%ld", &inputs.l);

This prints the long input

   printf("Long: %ld", inputs.l);

   return 0;

   }