Draft. Original chapter in Ramirez-Goicoechea, E. 2013. Antropología Biosocial. Biología, cultura y sociedad. Madrid: Ed. Ramón Areces/UNED. 494 pp. ISBN-13: 978-84-9961-094-8.Full description
CApitulo 3 del sedra
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Ejercicio asientos de contabilidad
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EXAMEN CAPITULO 3 1.
2.
Un usuario informa que todas las mañanas, cuando se enciende una computadora determinada, deben reiniciar los ajustes de configuración. ¿Qué se debe hacer para solucionar esta situación? Reemplazar la placa madre. Actualizar el BIOS. Reemplazar la batería CMOS. Mover los puentes. ¿Qué tipo de ranura de expansión de la placa madre tiene cuatro tipos que van desde x1 a x16 y cada uno tiene una longitud de ranura de expansión diferente? PCIe PCI AGP SATA
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Un técnico terminó de ensamblar una nueva PC y ahora debe configurar el BIOS. ¿En qué momento se debe presionar una tecla para iniciar el programa de configuración del BIOS? Durante el POST. Durante el proceso de carga de Windows. Después del POST pero antes de que Windows empiece a cargarse. Antes de encender la PC. ¿Cuál de las siguientes es una característica de seguridad del BIOS que puede evitar que los datos se lean en una unidad de disco duro, aun cuando el disco duro se traslada a otra computadora? arranque seguro Contraseñas del BIOS RAID Cifrado de unidades Un técnico está instalando memoria adicional en una PC. ¿Cómo puede asegurarse el técnico de que la memoria está alineada correctamente? Las ranuras de memoria están codificadas por color: un extremo de color rojo y un extremo de color azul.
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6.
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La etiqueta en el módulo de memoria siempre debe estar enfrentada a la CPU. Las flechas en el módulo de memoria deben estar alineadas con las flechas en la ranura de la motherboard. Una muesca en el módulo de memoria debe estar alineada con una muesca en la ranura de memoria. Cuando se arma una computadora, ¿cómo se identifica el pin 1 en los cables del panel frontal para que se lo pueda alinear correctamente con el pin 1 en el conector de la placa madre? Por un cable rojo Por un signo más Por un P1 Por una flecha pequeña o muesca ¿Qué datos se almacenan en el chip de memoria CMOS? Controladores de dispositivos Configuración del BIOS Información de inicio de sesión de usuario Ajustes de configuración de Windows ¿Cuáles de las siguientes son tres consideraciones importantes para tener en cuenta al instalar una CPU en una motherboard? (Elija tres opciones). Que se quite la batería CMOS EPROM antes de instalar la CPU. Que el conjunto de ventilador y disipador térmico de la CPU se instalen correctamente. Que se tomen precauciones antiestática. Que la CPU se alinee y se ubique en el socket correctamente. Que se aplique la fuerza de inserción máxima a la palanca de carga para que la CPU quede fijada en su sitio. Que los contactos de la CPU se limpien con alcohol isopropílico antes de colo
9.
¿Qué se utiliza para evitar que la motherboard toque las partes de metal del
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Pasta térmica ¿Qué tipo de unidad se instala normalmente en una bahía de 5,25 in (13,34 cm)? Unidad de memoria flash Unidad óptica SSD Disco duro 11. ¿Qué dos componentes suelen reemplazarse cuando se actualiza un sistema informático con una placa madre más moderna? (Elija dos opciones). 10.
Unidad de disco duro CPU Tarjeta de adaptador Batería CMOS RAM Unidad óptica ¿Cuándo debería un técnico usar controladores no firmados para el hardware instalado recientemente?
12.
Si el técnico confía en el origen de los controladores. Si los medios de instalación originales no están disponibles. Si los medios de instalación de Windows no incluyen un controlador firmado válido. Si el controlador no firmado es el controlador más reciente disponible. Un técnico acaba de terminar de ensamblar una nueva PC. Cuando la PC se enciende por primera vez, el POST encuentra un problema. ¿Cómo indica el error el POST?
13.
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¿Cuál es la mejor forma de aplicar pasta térmica cuando se vuelve a colocar una CPU?
14.
Antes de aplicar la pasta térmica, cambiar la base del disipador térmico. Raspar los restos de pasta térmica antigua que haya en la base del disipador térmico con un cuchillo afilado y aplicar la pasta térmica generosamente. Colocar una capa gruesa de pasta térmica sobre la pasta térmica existente antes de volver a colocar la CPU. Antes de aplicar la pasta térmica, limpiar la CPU y la base del disipador térmico con alcohol isopropílico. Antes de aplicar la pasta térmica, utilizar alcohol para fricciones para limpiar base del disipador térmico. 15.
¿Cuál es el propósito de un LoJack?
Proporciona contraseñas para los diferentes niveles de acceso al BIOS. Permite que el propietario de un dispositivo ubique, bloquee o elimine en forma remota todos los archivos del dispositivo. Asegura que una computadora solo arranque un sistema operativo en el que confía el fabricante de la placa madre. Cifra datos en los discos duros para evitar el acceso sin la contraseña correcta. ¿Cuál de estas afirmaciones describe el propósito de la placa conectora de E/S?
16.
Conecta las ranuras para adaptadores PCIe utilizadas para video directamente a la CPU, lo que proporciona una mayor velocidad de procesamiento. Se conecta a la motherboard y aumenta la cantidad de ranuras disponibles para tarjetas adaptadoras. Proporciona varias conexiones para que los discos duros SATA se conecten a la
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Un técnico está ensamblando una nueva PC. ¿Cuáles son los dos componentes que con frecuencia son más fáciles de instalar antes de montar la motherboard en el gabinete? (Elija dos opciones). opcion es).
17.
NIC Tarjeta de video Memoria Tarjeta de sonido CPU Un técnico está instalando una tarjeta de adaptador de video nueva de primera calidad en una ranura de expansión de la placa madre. ¿Qué puede necesitarse para operar esta tarjeta de adaptador de video?
18.
Ranura de expansión PCIe 8 x Ranura de expansión PCI Dos conectores de fuente de 8 pines Conector de fuente ATX de 24 pines Cuándo se arma una computadora, ¿qué acción se puede realizar para ayudar a desechar el desorden dentro del gabinete?
19.
Instalar una CPU sin utilizar un conjunto de disipador térmico y ventilador. Instalar una placa madre sin utilizar separadores en el gabinete. Instalar un HDD de 2,5 in en lugar de un HDD de 3,5 in. Instalar una fuente de alimentación modular. 20.
¿Cuál de las siguientes es una función del BIOS?
Permite que la computadora se conecte a una red.
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Un técnico advierte que la mitad de las ranuras de memoria en una placa madre son de color diferente a la otra mitad. ¿Qué tecnología probablemente se implementó en este sistema? ECC Doble cara Canalización doble Virtualización ¿Cuál es el propósito de ajustar la velocidad del reloj dentro de los ajustes de configuración del BIOS? Permitir que la computadora ejecute más lento y genere menos calor. Permitir que una computadora ejecute varios sistemas operativos en archivos o particiones. Cambiar el orden de las particiones de arranque. Deshabilitar los dispositivos que la computadora no necesita o usa.
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¿Cuáles son las dos razones para instalar una segunda unidad de disco duro dur o en una computadora existente? (Elija dos opciones). Almacenar el archivo de intercambio del sistema. Admitir una matriz RAID. Aumentar la velocidad de la CPU. Permitir el acceso a un resultado en pantalla secundario. Almacenar los ajustes de configuración del BIOS. ¿Qué componente de la computadora se necesita para permitir que una única computadora use dos monitores en simultáneo?
24.
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