1.
Que equipo de protección se utiliza para evitar que el equipo se apague ante fallas de fluido eléctrico.
Correct Answer
A. UPS
Explanation
An UPS (Uninterruptible Power Supply) is a device used to protect electronic equipment from power outages or electrical failures. It provides backup power in case of a power failure, allowing the equipment to continue running without interruption. Unlike a regulator or power supply, an UPS can provide power for a certain period of time, ensuring that the equipment remains operational and preventing any damage or loss of data that may occur due to sudden power loss. Bandas de caucho (rubber bands) are not related to protecting equipment from electrical failures, making them an incorrect answer.
2.
Que puede causar lentitud en el sistema operativo
Correct Answer
C. Sectores defectuosos en el disco duro
Explanation
La presencia de sectores defectuosos en el disco duro puede causar lentitud en el sistema operativo. Los sectores defectuosos son áreas del disco duro que no funcionan correctamente y pueden resultar en la pérdida de datos o en la dificultad para acceder a la información almacenada en ellos. Cuando el sistema operativo intenta acceder a estos sectores defectuosos, puede experimentar retrasos y ralentización en su funcionamiento normal. Por lo tanto, la presencia de sectores defectuosos en el disco duro puede ser una de las causas de la lentitud del sistema operativo.
3.
¿Cual crees que es la señal principal de que un disco duro se está deteriorando
Correct Answer
B. Cuando el disco suena y el arranque es lento
Explanation
The main signal that a hard drive is deteriorating is when the disk makes noise and the startup process becomes slow. This indicates that there may be mechanical issues with the hard drive, such as a failing motor or damaged read/write heads. These problems can lead to data loss and system instability if not addressed promptly.
4.
Memoria Ram con defectos, es causal de perdida de video?
Correct Answer
A. True
Explanation
Yes, defective RAM can cause video loss. RAM (Random Access Memory) is responsible for temporarily storing data that is being actively used by the computer, including video data. If the RAM is defective, it can lead to errors in data processing and result in video loss or display issues.
5.
Dos declaraciones que describen una NIC, son:
Correct Answer(s)
B. Un dispositivo que conecta un PC a una red local inalámbrica
E. Un dispositivo que conecta un PC a una red LAn
Explanation
The correct answer is "Un dispositivo que conecta un PC a una red local inalámbrica" and "Un dispositivo que conecta un PC a una red LAN." These statements describe a NIC (Network Interface Card) as a device that connects a computer to a wireless local network and a wired local network, respectively. A NIC allows a computer to communicate with other devices on the network by sending and receiving data.
6.
¿Según la imagen. que figura identifica un slot PCI en la placa madre ATX?
Correct Answer
C. C
Explanation
Based on the image, figure C identifies a PCI slot on the ATX motherboard.
7.
Cuando un PC no enciende Como se puede Probar la fuente?
Correct Answer
B. Se desconecta la fuente totalmente de la board y perifericos. En el conector principal se hace puente entre chasis y el pin numero 24 (cable verde).
Explanation
To test the power supply when a PC does not turn on, it is necessary to disconnect the power supply completely from the motherboard and peripherals. Then, in the main connector, a bridge is made between the chassis and pin number 24 (green cable). This allows for testing the power supply independently from other components.
8.
El administrador de TI de una pequeña empresa financiera desea actualizar el servidor de la empresa. Este servidor cuenta con tres discos de 200 GB. La intención es añadir tolerancia a fallos de disco sin duplicar el número de discos.
¿Qué versión de RAID "arreglo redundante de discos independientes" más se ajusta los requisitos?
Correct Answer
C. RAID 5
Explanation
RAID 5 is the most suitable option for the IT administrator's requirements because it provides fault tolerance without duplicating the number of disks. In RAID 5, data is distributed across multiple disks along with parity information, allowing for the reconstruction of data in case of a disk failure. This means that if one disk fails, the data can still be accessed and the system can continue to function properly. RAID 5 offers a good balance between performance, fault tolerance, and cost-effectiveness for small businesses.
9.
Antes de que un técnico actualice un servidor, es necesario realizar copias de seguridad de todos los datos. ¿Qué tipo de copia de seguridad es necesario para garantizar que todos los datos sean respaldados?
Correct Answer
C. Completo
Explanation
Para garantizar que todos los datos sean respaldados antes de que un técnico actualice un servidor, es necesario realizar una copia de seguridad completa. Una copia de seguridad completa guarda todos los datos en su estado actual, asegurando que no se pierda ninguna información durante el proceso de actualización.
10.
Cuales parámetros deben ser configurados para permitir que un PC se conecte a una red? (Elija 3)
Correct Answer(s)
A. Dirección IP
C. Mascara de Red
D. Puerta de enlace
Explanation
Los parámetros que deben configurarse para permitir que un PC se conecte a una red son la dirección IP, la máscara de red y la puerta de enlace. La dirección IP es necesaria para identificar de manera única al PC en la red. La máscara de red se utiliza para determinar qué parte de la dirección IP pertenece a la red y qué parte pertenece al host. La puerta de enlace es la dirección IP del dispositivo que permite la comunicación entre diferentes redes.
11.
Qué comando se utiliza en Windows para mostrar la información de configuración de red ?
Correct Answer
C. IPCONFIG
Explanation
IPCONFIG is the correct answer because it is the command used in Windows to display network configuration information. This command provides details about the IP address, subnet mask, default gateway, and other network settings of the computer. It is commonly used by network administrators and users to troubleshoot network connectivity issues and gather information about the network configuration.
12.
¿Cuál es la forma de poner fin a un proceso de forma manual en Windows ?
Correct Answer
B. Presione Ctrl-Alt-Supr, elija el proceso deseado y luego haga clic en Finalizar tarea
Explanation
To manually end a process in Windows, you need to press Ctrl-Alt-Del, then choose the desired process and click on "End Task". This action opens the Task Manager, where you can see all the running processes and terminate the one you want to stop.
13.
¿Que es el Registro del sistema?
Correct Answer
B. Una base de datos utilizada para la gestión de la información que necesita el sistema operativo Windows
Explanation
The system registry is a database used to manage the information needed by the Windows operating system. It stores settings and configurations for hardware, software, user preferences, and system preferences. The registry is essential for the proper functioning of the operating system and its applications. It is constantly accessed and updated by the system and various programs.
14.
Si la fecha del pc se desconfigura constantemente cuando no hay energia electrica el problema radica en la configuración de los parámetros de zona horaria.
Correct Answer
B. False
Explanation
The statement suggests that if the date on the computer constantly gets reset when there is no electricity, then the problem lies in the configuration of the time zone parameters. However, this is incorrect. The issue of the date getting reset when there is no power is most likely due to a faulty or weak CMOS battery on the computer's motherboard. The CMOS battery is responsible for maintaining the computer's date and time settings when it is not powered on.
15.
El nombre de un compendio de herramientas útiles para la reparación de sistemas operativos
Correct Answer
B. Hirens boot
Explanation
Hiren's Boot is the correct answer because it is a well-known and widely used collection of tools for repairing operating systems. It is a bootable software that includes various diagnostic, recovery, and troubleshooting tools, making it a valuable resource for technicians and IT professionals. Hiren's Boot allows users to perform tasks such as disk cloning, data recovery, virus scanning, and partition management, among others. It is often used as a convenient and comprehensive solution for repairing and maintaining computer systems.
16.
A un técnico de una empresa, se le ha pedido a la reparación de un PC. ¿Cuál es la primera tarea que el técnico debe llevar a cabo para solucionar problemas de la computadora?
Correct Answer
B. Solicitar información a los usuarios; para determinar donde y cuando se produce el error.
Explanation
The first task that the technician should carry out to solve computer problems is to request information from the users to determine where and when the error occurs. This step is crucial in identifying the specific issue and finding a suitable solution. By gathering information from the users, the technician can gain insights into the symptoms, patterns, and circumstances surrounding the problem, which will help in troubleshooting and resolving the computer issue effectively.
17.
¿Que utilidad de Windows se utiliza para instalar manualmente un controlador de dispositivos?
Correct Answer
D. Administrador de dispositivos
Explanation
The correct answer is "Administrador de dispositivos". The Device Manager utility in Windows allows users to manually install device drivers for their hardware. It provides a centralized location to view and manage all the hardware devices connected to the computer. By accessing the Device Manager, users can update, uninstall, disable, or enable device drivers as needed. This utility is particularly useful when a device is not functioning properly or when a specific driver needs to be installed manually.
18.
¿Cual archivo de windows carga la utilidad "Configuración del Sistema"?
Correct Answer
E. Msconfig.exe
Explanation
The correct answer is msconfig.exe because it is a Windows utility that allows users to modify the startup process and configure system settings. This utility is commonly used to troubleshoot system startup issues, manage startup programs, and modify various system settings such as boot options and services.
19.
Cual es el modo de inicio que permite el acceso a Windows con sólo los controladores de dispositivos más básicos?
Correct Answer
B. Modo a Prueba de Fallos
Explanation
The correct answer is "Modo a Prueba de Fallos" (Safe Mode). This mode allows access to Windows with only the most basic device drivers, which can be helpful in troubleshooting and resolving issues with the operating system. Safe Mode loads a minimal set of drivers and services, bypassing any unnecessary software or settings that may be causing problems. By starting in Safe Mode, users can diagnose and fix issues without interference from third-party applications or non-essential system components.
20.
Un Soporte Tecnico de la empresa desea instalar un equipo con sistema de arranque dual, con Windows 7 y Windows10 . Que de utilidad basada en MS-DOS se puede usar para crear dos particiones en el disco con el fin de instalar dos sistemas operativos?
Correct Answer
A. Fdisk
Explanation
Fdisk is a utility based on MS-DOS that can be used to create two partitions on the disk in order to install two operating systems. It allows the user to manage the disk partitions by creating, deleting, and resizing them. By using fdisk, the technical support can easily create two separate partitions on the disk, one for Windows 7 and another for Windows 10, enabling a dual-boot system.
21.
¿Qué utilidad puede ser utilizada para mejorar el rendimiento de un sistema de disco en la reescritura de los archivos a fin de que estén en el principio del disco?
Correct Answer
C. Defrag
Explanation
Defrag is the correct answer because it is a utility that can be used to improve the performance of a disk system by rearranging the fragmented files and placing them at the beginning of the disk. This helps to optimize the disk's read and write speeds, resulting in improved overall performance. Chkdsk, fdisk, and diskpart are not specifically designed for this purpose and do not have the same impact on disk performance.
22.
¿Que es BIOS?
Correct Answer
C. Sistema básico de entrada y salida. Es un software que localiza y reconoce todos los dispositivos necesarios para cargar el sistema operativo en la memoria RAM
Explanation
BIOS stands for Basic Input/Output System. It is a software program that is responsible for locating and recognizing all the necessary devices to load the operating system into the RAM memory.
23.
¿Que es un controlador de dispositivo?
Correct Answer
B. Un programa pequeño que identifica y controla el hardware y componentes periféricos de nuestro sistema de computo.
Explanation
A device driver is a small program that identifies and controls the hardware and peripheral components of our computer system. It acts as a bridge between the operating system and the hardware, allowing the operating system to communicate and interact with the devices connected to the computer. The device driver ensures that the hardware functions properly and enables the operating system to access and utilize the features of the devices effectively.
24.
Raúl esta configurando un servidor Exchange para un cliente. Antes de su instalación, el cliente ha pedido los números de puertos que deben ser abiertos en la empresa por cuestiones de seguridad. Usted necesidad permitir el correo electrónico SMTP como mecanismo de ejecución, y sólo va a permitir que Outlook Web Access a través de HTTP sobre SSL por lo que es seguro. ¿Cuál de los siguientes puertos son necesarios abrir para la correcta utilización del servidor Exchange?
Correct Answer(s)
B. Puerto 25
D. Puerto 443
Explanation
The correct answer is Puerto 25 and Puerto 443. Puerto 25 is necessary to allow SMTP (Simple Mail Transfer Protocol) for email communication, while Puerto 443 is needed for secure HTTP access (Outlook Web Access) over SSL (Secure Sockets Layer). These ports ensure the proper functioning of the Exchange server while maintaining security measures.
25.
Los usuarios se quejan de que no pueden acceder a recursos de la casa central. Se realizaron Ping a algunos hosts en la sede central y las respuestas son todas infructuosas. ¿Cuál sería el siguiente paso que hacer para localizar el problema?
Correct Answer
B. Utilizar la utilidad de trace route
Explanation
Utilizar la utilidad de trace route es el siguiente paso que se debe tomar para localizar el problema. Esta herramienta permite rastrear la ruta que sigue un paquete de datos desde el origen hasta el destino, mostrando cada salto o nodo intermedio por el que pasa. Al utilizar trace route, se puede identificar el punto exacto en el que se está perdiendo la conexión y asà determinar si el problema está en la red local o en la sede central. Esto ayudará a dirigir los esfuerzos de solución de problemas de manera más efectiva.
26.
En una entidad no hay internet y se detecta que los PCs no tienen direcciones IP. Que servicio de red esta afectado?
Correct Answer
C. DHCP
Explanation
In this scenario, the correct answer is DHCP. DHCP (Dynamic Host Configuration Protocol) is responsible for assigning IP addresses to devices on a network. If the PCs in the entity do not have IP addresses, it suggests that the DHCP service is affected or not functioning properly. Without DHCP, the PCs cannot obtain IP addresses automatically, resulting in a lack of network connectivity.
27.
¿Que tipo de ficha se debe utilizar para realiar una conexión con un cable UTP Cat 5 en un esquema de cableado horizontal?
Correct Answer
C. RJ45
Explanation
The correct answer is RJ45. RJ45 is the type of connector that is commonly used for Ethernet connections, including those made with a UTP Cat 5 cable. This connector has 8 pins and is designed to fit into an RJ45 socket, which is commonly found on networking devices such as routers, switches, and computers. Using an RJ45 connector ensures that the connection is compatible with the UTP Cat 5 cable and allows for reliable data transmission.