
Tema 11 test 4
Quiz
•
Professional Development
•
Professional Development
•
Practice Problem
•
Medium
Luisa Blanquer
Used 22+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quines bandes utilitzen les xarxes Wi-Fi?
Bandes ISM de 1 GHz i 10 GHz
Bandes ISM de 2,4 GHz i 5 GHz
Bandes ISM de 3 GHz i 6 GHz
Bandes ISM de 2 GHz i 6 GHz
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quina és l'amplada de banda necessària perquè les xarxes Wi-Fi operin en els estàndards IEEE 802.11 b i g?
22 MHz
10 MHz
40 MHz
50 MHz
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quants canals estan definits en les xarxes Wi-Fi a Europa?
10
12
13
14
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quins canals són adequats per a evitar solapaments quan hi ha diverses xarxes Wi-Fi en una mateixa zona?
3, 8 i 13
2,4 i 6
3, 6 i 9
Tots
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Qué protocolo se utiliza en las redes IEEE 802.11 para evitar colisiones en la transmisión de datos?
CSMA/CD
ACK
RTS/CTS
CSMA/CA
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Qué trama se envía antes de una transmisión de datos en el protocolo RTS/CTS?
Trama de datos
Trama de control
Trama de gestión
Trama RTS (request to send)
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Qué es una antena en el contexto de las redes inalámbricas?
Un dispositivo para el
enrutamiento y control del flujo de datos.
Un dispositivo
para la codificación y decodificación de los datos transmitidos.
Un dispositivo para la transmisión y recepción de
señales electromagnéticas.
Un dispositivo para la autenticación y encriptación de los datos
transmitidos.
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