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3 years ago

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Each time the user selects an item from a list box in a web page, a postback occurs, the web page will redisplay, and the page_l

oad event will occur.

Computers and Technology

1 answer:

yan [13]3 years ago

7 0

Only if there's javascript code to operate that way. The default behaviour is that the selection isn't posted until a submit button is pressed.

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David is working in a database that organizes student exam grade information. He needs to find all students who have scored 100

kobusy [5.1K]

Answer:

David can apply filter to the data in order to show only records that meet the criteria.

Explanation:

Filter is a very helpful option that displays the records that you want to view, hiding rest of the unwanted records.
Sometimes you want to extract and view only the records that match a specific criteria instead of viewing all the records.
For example in the CUSTOMERS table which contains names, addresses, countries of customers. There are several customers from different countries but you only want to view the customers from Spain. So you can use filter feature to view all the customers from country Spain.
In MS Access you can apply filters using Sort & Filter group in the Home tab by selecting the desired column. In SQL, WHERE clause can be used along with SELECT to for filtering and extracting certain records. SELECT will select the records from the table and WHERE clause will specify the criteria to select the certain records.

7 0

4 years ago

In a real-world environment, changing granularity requirements might dictate changes in primary key selection, and those changes

scoray [572]

In a real-world environment, changing granularity requirements might dictate changes in primary key selection, and those changes might ultimately require the use of surrogate keys.

Explanation:

A surrogate key is a unique identity as an object or entity. It is used as an object in the database and as an entity in the modern world. Surrogate key is not a natural key hence it cannot be derived from application data.

Advantages of using surrogate key:

They are unique
They have uniform rules
It allows unlimited values
It stands the test of time

3 0

3 years ago

Assume that d is a double variable. Write an if statement that assigns d to the int variable i if the value in d is not larger t

mamaluj [8]

Answer:

That's because the value has reached the size limit of the int data type. ... you should use long rather than int , because long can store much larger numbers than int . If ... In other words, a float or double variable can't accurately represent 0.1 . ... If you're using Java to measure the size of your house, you'd need an electron ...

Explanation:

3 0

3 years ago

Which similar computer network components connect multiple devices?

Firlakuza [10]

That computer network component is router. It's possible to connect printer to it. Other computer and any other devices.

8 0

3 years ago

Can anyone help me with these questions?

densk [106]

Answers and explanations:

<u>Question 1: </u>

a. True

<u>Explanation: </u>

According to data released by the Tetris company in 2018 Tetris has sold over 500million copies. The second best-selling video game is Minecraft with circa 180millon copies according to Microsoft

<u>Question 2: </u>

b. Challenges or conflicts.

<u>Explanation</u>

A game should include the following elements:

Willingness to participate
Goals to achieve, or challenges
Rules and strategies that ought to be followed overcome the challenges
An agent to compete against. This can another player (human or not), the environment of the game, or even the rules of the game.
The addition of agent to compete against, create an essential element for games: conflict.

<u>Question 3:</u>

c. Third-person perspective

<u>Explanation</u>

In video games, several perspectives modify how the player interacts with the character and the environment.

1st person perspective: the player sees what the main character sees. Like in Doom.
2nd person perspective: the player sees the main character through the eyes of a third character. Like in Mario 64, the player sees Mario from the perspective of Lakitu.
3rd person perspective: The player sees the main character body entirely, like a character in a movie. Over the shoulder, perspective is similar to 3rd person, but the camera is fixed to the main character shoulder.
Top-Down perspective: where the player sees both the main character and the map from an "aerial" view
etc...

<u>Question 4:</u>

b. tactical

<u>Explanation</u>

Tactics and strategy are usually used interchangeably. However, strategy is the whole action plan to achieve an overall outcome. Like winning a football match. Tactics, on the other hand, refer to the immediate and in-situ efficient usage of resources to achieve a small objective. Like scoring a goal. In Henry Hatsworth, the immersion experience comes from the ability to master the tactics to play a combination of puzzles with action platformer.

<u>Question 5:</u>

c. AI.

<u>Explanation</u>

Gameplay makes reference to the way in which a player interacts with a game. It econpases game mechanics, challenges, story, etc...

Game mechanics are the rules and methods through which a player can achieve the game goals. For instance, a game can be turn-based or real-time strategy.

Roguelike is a specific kind of games based on the exploration of dungeons.

In videogames, a developer can adjust the AI of NPC to react more or less assertive or aggressively to player actions. This can alter the whole gameplay experience, so must be done carefully.

<u>Question 6.</u>

a. A video recap

<u>Explanation:</u>

A video recap can help developers to asses how players interact with the videogame

<u>Question 7:</u>

b) What marketing strategy will I use for my game?

<u>Explanation</u>

Game development requires resources, you need to think about how you are going to sell the game to investors or crowd-funders in order to actually being able to materialise any idea.

<u>Question 8</u>

c) It means you can learn how to play the game almost inmediately, but you will want to keep playing for a long time in order to master it.

<u>Explanation</u>

Some games have simple mechanics, like simple rules that are easy to understand. However, this does not determine the overall gameplay complexity. Go is an example of simple mechanics and extremely complex and in-depth gameplay.

<u>Question 9</u>

b. False

<u>Explanation</u>

FPV provides the player with a limited but detailed view of the map. On the contrary, a top-down perspective provides a broader view possible on a map.

<u>Question 10:</u>

b. First-person view.

<u>Explanation</u>

please check explanation on question 3.

<u>Question 11:</u>

c. Passively

<u>Explanation</u>

A player cannot be a passive spectator. They must engage actively in gameplay in order to overcome the challenges and advance on the game. This is why games are different from most forms of entertainment, in which the spectator acts passively and cannot affect the outcome of the story.

<u>Question 12</u>

b. False

<u>Explanation:</u>

The characteristics mentioned are typically found on puzzle games. Adventure games focus on telling a story about a lifechanging journey. They may contain many mechanics and elements (such as puzzles) but they are focused on telling the character story.

<u>Question 13</u>

d. Resource management

<u>Explanation</u>

Economy is the study of resource management (not only money). Therefore, any game that has a resource management component involves a certain degree of economic mechanics. This component is more prominent in RTS and city-building games.

<u>Question 14. </u>

b. Tetris

<u>Explanation</u>

The core mechanic of Tetris is to align geometric pieces that fall from the top of the screen. Each time the pieces are aligned in a horizontal line, the line disappears.

<u>Question 15. </u>

a. True

<u>Explanation</u>

Fable III does not have any difficulty setting. Game mechanics are designed in such a way that players need to increase their avatar level in order to advance the storyline, where they are going to find harder and harder characters.

6 0

4 years ago