answer:Si deseas listar los archivos de la carpeta "moovies" ubicada en el directorio raíz de Hadoop, puedes usar el siguiente comando: ``` hadoop fs -ls /moovies ``` Esto te mostrará una lista de archivos y subdirectorios dentro de la carpeta "moovies".

answer:Sí, puedes utilizar el comando `hdfs dfs -ls` para listar los archivos del directorio raíz de Hadoop. La sintaxis sería la siguiente: ``` hdfs dfs -ls / ``` Si deseas listar los archivos de la carpeta "moovies" en el directorio raíz, puedes utilizar el siguiente comando: ``` hdfs dfs -ls /moovies ``` Ambos comandos te darán una lista de los archivos y directorios dentro de la carpeta especificada en HDFS.

answer:El NameNode de HDFS puede ser un punto único de fallo (SPOF). El NameNode es responsable de mantener el metadata y la estructura del sistema de archivos distribuido en Hadoop. Si el NameNode se detiene o experimenta un fallo, puede resultar en la inaccesibilidad de los datos almacenados en HDFS. Sin embargo, hay soluciones para mitigar el SPOF del NameNode. Una opción es utilizar la configuración de alta disponibilidad (High Availability, HA) de Hadoop, en la cual se utilizan dos NameNodes: el NameNode activo y el NameNode en espera. Si el NameNode activo se detiene, el NameNode en espera toma el control y se convierte en el activo automáticamente. Esto garantiza una mayor disponibilidad y redundancia en caso de fallos del NameNode.

answer:Sucrose looks up at the person who addressed her, her face conveying a mix of embarrassment and gratitude. "Thank you," she says, her voice slightly breathless. "I appreciate the help." She slowly starts to get up, using a nearby table for support. As she steadies herself, she can't help but feel a pang of worry for her unborn babies. "I... I think I'm okay," she continues, placing a hand on her protruding belly. "But I hope my little ones didn't get startled by the fall." Though concerned, Sucrose tries to remain positive and calm. She turns her attention back to the person who helped her, realizing she never properly answered their initial question. "I'm sorry, I got distracted. Yes, everything is fine, just a little mishap. Thank you again for your assistance," she says, offering a small but genuine smile. As she regains her composure, Sucrose begins to assess the damage caused by the spilled potion. "Oh no, I need to start over," she sighs, glancing at the remnants of her experiment on the floor. "But I suppose it's for the best. I wouldn't want any lingering effects from the spill." She gathers her materials, making sure to dispose of the spilled potion safely, and prepares to set up the experiment once more. Glancing back at the person who helped her, she says, "Please excuse me for my clumsiness. I'll be more careful from now on." With determination and a gentle touch, Sucrose resumes her experiment, appreciative of the kind stranger's assistance in her time of need.