
ASP.NET 2
Authored by Daniel Carreras
Computers
University
Used 3+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿En qué fichero se suele situar la configuración de la base de datos?
Todas son correctas
_Layout.cshtml
appSettings.json
Program.cs
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué le falta al código?
public async Task<IEnumerable<Reserva>> listarReservas(){
return await connection.QueryAsync<Reserva>(@"SELECT * FROM Reserva;");
}
IEnumerable<Reserva> reservas = return await connection.QueryAsync<Reserva>(@"SELECT * FROM Reserva;");
using var connection = new FbConnection(connectionString);
Está bien
Ninguna de las anteriores
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cómo arreglarías el código?
public async Task<int?> idLastReserva(){
IEnumerable<Reserva> last;
using var connection = new FbConnection(connectionString);
last = await connection.QueryFirstAsync<int>(@"SELECT MAX(IDRESERVA) as ID FROM RESERVA");
return last;
}
Cambiando:
IEnumerable<Reserva> last;
por
int? last = 0;
Cambiando:
connectionString
por
defaultConnection
Cambiando:
QueryFirstAsync
por ExecuteAsync
Está todo bien
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué método utilizarías en lugar de las XXXX?
public async Task insertarReserva(Reserva reserva){
using var connection = new FbConnection(connectionString);
var sql = "INSERT INTO RESERVA(IDRESERVA,APELLIDOS,NOMBRE,NIF,IDVUELO,N_ASIENTOS,CANCELADO) VALUES("
+ reserva.idreserva + ",'" + reserva.apellidos + "','" + reserva.nombre + "','" + reserva.nif + "'," +
+ reserva.idvuelo + "," + reserva.n_asientos + "," + reserva.cancelado + ")";
await connection.XXXX(sql);
}
QueryAsync
ExecuteAsync
QueryFirstOrDefault
QuerySingle
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cómo puedo inyectar un servicio en mi clase HomeController?
Añadiéndolo en el fichero Program.cs
Creando una instancia en el fichero AdminController.cs
Creando una instancia en el fichero HomeController.cs y nada más
Ninguna de las anteriores es correcta.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué le falta/sobra a mi función?
public Task<IActionResult> Index()
{
IEnumerable<Reserva> reservas = await reservaRepository.listarReservas();
return View("Index", reservas);
}
Falta Async delante del Task
Sobra IActionResult
Sobra el IEnumerable
Falta un objeto connection
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
AñadirReserva es la acción de un formulario, ¿qué le falta al código?
public async AñadirReserva(Reserva reserva){
if (!ModelState.IsValid){
return View("Reserva", reserva);
}
try{
await reservaRepository.insertarReserva(reserva);
return View("Exito_insercion");
}catch(Exception e){
_logger.LogInformation(e.ToString());
return View("Reserva", reserva);
}
}
No le falta nada
[HttpPost]
Task<IActionResult>
B(verde) y C(amarillo) son correctas
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