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informatica:certificaciones:lpic:lpic-2:201_tests_examen

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informatica:certificaciones:lpic:lpic-2:201_tests_examen [2021/05/20 13:51] – tempwininformatica:certificaciones:lpic:lpic-2:201_tests_examen [2021/06/23 00:07] (actual) – tempwin
Línea 1758: Línea 1758:
   * Joliet (**Solución**)   * Joliet (**Solución**)
   * Rock Ridge (**Solución**)   * Rock Ridge (**Solución**)
 +
 +**Which of the following RAID array structures are considered fault tolerant? (Choose all that apply.)**
 +
 +  * RAID 6 (**Solución**)
 +  * RAID 0
 +  * RAID 10 (**Solución**)
 +  * RAID 1 (**Solución**)
 +  * RAID 5 (**Solución**)
 +
 +**Which of the following ''sdparm'' command options will show all of the common mode parameters for a designated device? (Choose the best answer.)**
 +
 +  * None of the above (**Solución**)
 +  * ''%%--%%page''
 +  * ''%%--%%hex''
 +  * ''%%--%%all''
 +  * ''%%--%%command show''
 +
 +**What number designates both an iSCSI target server and an iSCSI disk being offered by that target? (Choose the best answer.)**
 +
 +  * scsi_id
 +  * LUN
 +  * IQN (**Solución**)
 +  * WWN 
 +  * WWID
 +
 +**Where are iSCSI discovery records stored? (Choose all that apply.)**
 +
 +  * ''/var/lib/iscsi/send_targets'' (**Solución**)
 +  * ''/var/log/iscsi.conf''
 +  * ''/lib/udev/scsi_id''
 +  * ''/var/lib/iscsi/nodes'' (**Solución**)
 +  * ''/etc/iscsi/iscsid.conf''
 +
 +**Which of the following allows multiple partitions or whole disks to be grouped together and used as a single drive? (Choose all that apply.)**
 +
 +  * PATA
 +  * iSCSI
 +  * Storage fabric
 +  * Logical volume management (**Solución**)
 +  * RAID (**Solución**)
 +
 +**Which is a designated unused disk partition or drive that can be used by LVM? (Choose the best answer.)**
 +
 +  * VG
 +  * Backstore
 +  * PV (**Solución**)
 +  * SATA
 +  * LV 
 +
 +**Which of the following is not true concerning PEs? (Choose the best answer.)**
 +
 +  * A PE is the smallest block size that can be allocated on a PV.
 +  * The default PE block size is 4 MiB.
 +  * PE block size is set during the process of designating a PV. (**Solución**)
 +  * A PE block size setting can be chosen.
 +  * PE stands for “physical extent.”
 +
 +**Which of the following is true concerning LEs? (Choose the best answer.)**
 +
 +  * LEs are made up of LVs.
 +  * LE mapping provides a way to block data access.
 +  * LE mappings occur during PV designation.
 +  * None of the above. 
 +  * LEs are mapped to VG physical extents. (**Solución**)
 +
 +**Which of the following LVM utilities will designate a partition as a PV? (Choose the best answer.)**
 +
 +  * ''pvscan''
 +  * ''vgcreate''
 +  * ''pvdisplay''
 +  * ''lvcreate''
 +  * ''pvcreate'' (**Solución**)
 +
 +**You’ve just finished creating vg01. What utility would be the best one to check it? (Choose the best answer.)**
 +
 +  * ''lvdisplay''
 +  * ''vgcreate''
 +  * ''pvdisplay''
 +  * ''vgdisplay'' (**Solución**)
 +  * ''pvscan''
 +
 +**Which of the following are true about LV snapshots? (Choose all that apply.)**
 +
 +  * LV snapshots can be mounted to the directory. (**Solución**)
 +  * LV snapshots contain copies of the original LV data. 
 +  * LV snapshots are created using the vgcreate command.
 +  * LV snapshots are LVs themselves. (**Solución**)
 +  * LV snapshots are read-only.
 +
 +**Which one of the following RAID structures is also called disk striping with double parity? (Choose the best answer.)**
 +
 +  * RAID 10 
 +  * RAID 0
 +  * RAID 1
 +  * RAID 6 (**Solución**)
 +  * RAID 5
 +
 +**To rename an LV, which utility should you use? (Choose the best answer.)**
 +
 +  * ''lvremove''
 +  * ''lvrename'' (**Solución**)
 +  * ''lvconvert''
 +  * ''lvmchange''
 +  * ''lvs''
 +
 +**After you issue the modprobe raid6 command using super user privileges on your system, which file should you check to determine if software RAID is supported on your system? (Choose the best answer.)**
 +
 +  * ''/etc/mdadm/mdadm.conf''
 +  * ''/dev/md0''
 +  * ''/etc/fstab''
 +  * ''/proc/mdstat'' (**Solución**)
 +  * ''/dev/mapper''
 +
 +**Which of the following is not an mdadm command mode? (Choose the best answer.)**
 +
 +  * Grow mode
 +  * ''%%--%%manage''
 +  * Delete mode (**Solución**)
 +  * Miscellaneous mode 
 +  * ''%%--%%follow''
 +
 +**Which of the following mdadm command options chooses the mode to make a RAID array? (Choose the best answer.)**
 +
 +  * ''%%--%%grow''
 +  * ''%%--%%make''
 +  * ''-C'' (**Solución**)
 +  * ''-F''
 +  * ''%%--%%misc''
 +
 +**Current RAID array status is held in what file? (Choose the best answer.)**
 +
 +  * ''/etc/mdadm/mdadm.conf''
 +  * ''/proc/mdstat'' (**Solución**)
 +  * ''/etc/mdadm.conf''
 +  * ''/etc/fstab''
 +  * ''/etc/sysctl.conf''
 +
 +**Which of the following mdadm options would show in the RAID array in which the /dev/sdc1 drive has membership? (Choose the best answer.)**
 +
 +  * None of the above 
 +  * ''%%--%%misc --examine /dev/sdc1'' (**Solución**)
 +  * ''%%--%%misc --detail /dev/md0''
 +  * ''%%--%%monitor –-help''
 +  * ''%%--%%detail --scan /dev/md0''
 +
 +**To delete an unmounted RAID array, you must do which of the following? (Choose all that apply.)**
 +
 +  *  Delete RAID array drives’ superblocks. (**Solución**)
 +  * Shrink the RAID array.
 +  * Delete RAID array drives’ data and superblocks.
 +  * Monitor the RAID array
 +  * Stop the RAID array. (**Solución**)
 +
 +**On which of the following drive types can the ''hdparm'' utility be used? (Choose all that apply.)**
 +
 +  * ATAPI 
 +  * PATA
 +  * SCSI
 +  * All of the above (**Solución**)
 +  * SATA
 +
 +**Which network layer uses the Wi-Fi Protected Access (WPA) encryption?**
 +
 +  * Transport 
 +  * Physical (**Solución**)
 +  * Network
 +  * Application
 +
 +**Which transport layer protocol guarantees packet delivery?**
 +
 +  * DNS
 +  * UDP
 +  * ICMP
 +  * TCP (**Solución**)
 +  * DHCP
 +
 +**Which ''nc'' command format listens for incoming HTTP connections to simulate a web server?**
 +
 +  * ''nc –l 80'' (**Solución**)
 +  * ''nc 192.168.1.77 80''
 +  * ''nc –l 22''
 +  * ''nc 192.168.1.77''
 +  * ''nc 80 192.168.1.77''
 +
 +**What folder do Red Hat–based systems use to store network configuration files?**
 +
 +  * ''/etc/network''
 +  * ''/etc/ifconfig''
 +  * ''/etc/iwconfig''
 +  * ''/etc/sysconfig/network-scripts'' (**Solución**)
 +  * ''/etc/ifcfg-eth0''
 +
 +**Which configuration line sets a dynamic IP address for a Debian system?**
 +
 +  * ''iface eth0 inet static''
 +  * ''auto eth0''
 +  * ''iface eth0 inet6 auto''
 +  * ''BOOTPROTO=dynamic''
 +  * ''iface eth0 inet dhcp'' (**Solución**)
 +
 +**Which file contains a list of DNS servers that the Linux system can use to resolve hostnames?**
 +
 +  * ''/etc/inetd.conf''
 +  * ''/etc/resolv.conf'' (**Solución**)
 +  * ''/etc/host.deny''
 +  * ''/etc/hosts.allow''
 +  * ''/etc/network/interfaces''
 +
 +**Which ''ifconfig'' format correctly assigns an IP address and netmask to the eth0 interface?**
 +
 +  * ''ifconfig up 192.168.1.50 netmask 255.255.255.0''
 +  * ''ifconfig down''
 +  * ''ifconfig eth0 down 192.168.1.50 netmask 255.255.255.0'' (**Solución**)
 +  * ''ifconfig up''
 +  * ''ifconfig eth0 255.255.255.0 192.168.1.50''
 +
 +**What command displays all of the available wireless networks in your area?**
 +
 +  * ''ip''
 +  * ''arp''
 +  * ''ifconfig''
 +  * ''iwconfig''
 +  * ''iwlist'' (**Solución**)
 +
 +**What option sets the wireless access point name in the ''iwconfig'' command?**
 +
 +  * ''channel''
 +  * ''address''
 +  * ''essid'' (**Solución**)
 +  * ''key''
 +  * ''netmask''
 +
 +**What command can you use both to display and to set the IP address, netmask, and default router values?**
 +
 +  * ''ifup''
 +  * ''iwconfig''
 +  * ''router''
 +  * ''ip'' (**Solución**)
 +  * ''ifconfig''
 +
 +**What tool allows you to send ICMP messages to a remote host to test network connectivity?**
 +
 +  * ''nmap''
 +  * ''netstat''
 +  * ''ping'' (**Solución**)
 +  * ''tcpdump''
 +  * ''nc''
 +
 +**What network layer feature defines the network to which the system is connected?**
 +
 +  * Hostname
 +  * DNS server
 +  * Netmask (**Solución**)
 +  * Default router
 +  * IP address
 +
 +**Which command allows you to view network packets?**
 +
 +  * ''tcpdump'' (**Solución**)
 +  * ''ping''
 +  * ''nc''
 +  * ''dig''
 +  * ''netstat''
 +
 +**Which of the following is a correct netmask value?**
 +
 +  * 192.168.1.0
 +  * 255.255.0.255
 +  * 192.168.0.1
 +  * 0.255.255.255
 +  * 255.255.255.0 (**Solución**)
 +
 +**What two parts make up an IP address?**
 +
 +  * Netmask and router
 +  * Network address and host address (**Solución**)
 +  * Host address and hostname
 +  * Netmask and host address
 +  * Host address and router
 +
 +**How many bits are used in an IPv6 address?**
 +
 +  * 32
 +  * 128 (**Solución**)
 +  * 8
 +  * 64
 +  * 256
 +
 +**What network setting defines the network device that routes packets intended for hosts on remote networks?**
 +
 +  * DNS server
 +  * Default router (**Solución**)
 +  * IP address
 +  * Hostname
 +  * Netmask
 +
 +**What device setting defines a host that maps a hostname to an IP address?**
 +
 +  * Netmask
 +  * DNS server (**Solución**)
 +  * Default router
 +  * IP address
 +  * Hostname
 +
 +**What is used to assign an IP address automatically to a client?**
 +
 +  * Default router
 +  * ifconfig
 +  * DHCP (**Solución**)
 +  * Netmask
 +  * ARP table
 +
 +**What type of address is used so that local applications can use network protocols to communicate with each other?**
 +
 +  * Loopback address (**Solución**)
 +  * Hostname
 +  * MAC address
 +  * Dynamic address
 +  * Static address
 +
 +**¿Con el comando sar, mostrar opciones de cpu?**
 +
 +  * ''sar -c''
 +  * ''sar -cpu''
 +  * ''sar -u'' (**Solución**)
 +  * ''sar -b''
 +
 +**Qué comando visualiza los procesos del usuario apache y mysql con el comando ps?**
 +
 +  * ''ps -u apache,mysql'' (**Solución**)
 +  * ''ps -user apache,mysql''
 +  * Ninguna de las anteriores
 +  * ''Ps -admin apache''
 +
 +**¿Que opción del comando vmstat muestra las estadísticas de memoria?**
 +
 +  * ''vmstat –n''
 +  * ''vmstat -t''
 +  * ''vmstat -s'' (**Solución**)
 +  * ''vmtst  -n''
 +
 +**¿ El parametro ''-t'' del comando ''lvextend'' permite?**
 +
 +  * Aplicara el comando Ivextend con -t
 +  * Comprobar que hara el comando lvexted pero no no aplica (**Solución**)
 +  * Ninguna de las anteriores
 +  * Aplicarar el comando lvexted
 +
 +**¿Cuál es el tipo de partición Linux estándar?**
 +
 +  * 82
 +  * 83 (**Solución**)
 +  * fd
 +  * 8e
 +
 +**¿Qué comando cambia la prioridad en un proceso de Linux ya en ejecución?**
 +
 +  * ''nice''
 +  * ''renice'' (**Solución**)
 +  * Ninguna de las anteriores
 +  * ''nice - 1''
 +
 +**¿Qué comandos de Linux se pueden utilizar para reparar un apagado incorrecto, o para reparar particiones corruptas después de un mal apagado?**
 +
 +  * ''scandisk''
 +  * ''dsk -h''
 +  * ''fsck'' (**Solución**)
 +  * ''rdisk''
 +
 +**¿Qué comando permite redimensionar sistemas de archivos xfs?**
 +
 +  * ''xfs_repair''
 +  * ''xfs_fs''
 +  * ''xfss_ss''
 +  * ''xfs_growfs'' (**Solución**)
 +
 +**¿Cuál de los siguientes comandos crea un raid1 en linux?**
 +
 +  * ''mdadm -d -C /dev/md0 -n 2 /dev/sdb1 /dev/sdc1 ''
 +  * ''mdadm -v -C /dev/md0 -n 2 /dev/sdb1 /dev/sdc1 -l 1'' (**Solución**)
 +  * ''mdadm -v -C /dev/md0 -n 2 /dev/sdb1 /dev/sdc1 ''
 +  * ''mdadm -v  /dev/md0 -n 2 /dev/sdb1 /dev/sdc1 -l 1''
 +
 +**¿Qué comando permite reinstalar el grub?**
 +
 +  * ''grub /dev/sda''
 +  * ''grub /dev/sda2''
 +  * ''grub-install /dev/sda'' (**Solución**)
 +  * ''grub-install2 /dev/sda''
 +
 +**¿Qué comando permite activar swap en caliente para el archivo /swap?**
 +
 +  * ''swaponn /swap''
 +  * ''swa-on /swap''
 +  * ''swapon /swap'' (**Solución**)
 +  * ''swa-pon /swap''
 +
 +**¿Con el comando sar, mostrar todas las estadísticas?**
 +
 +  * ''sar -n''
 +  * ''sar -h''
 +  * ''sar -a''
 +  * ''sar -A'' (**Solución**)
 +
 +**¿Cuál de estas variables devuelve el valor del PID del Shell actual?**
 +
 +  * ''echo $$'' (**Solución**)
 +  * ''echo  S!''
 +  * ''echo $? ''
 +  * ''echo &&''
 +
 +**¿Qué comando permite instalar el paquete webmin.rpm?**
 +
 +  * ''rpm - ed''
 +  * ''rpm - e''
 +  * ''rpm -i'' (**Solución**)
 +  * ''rpm - v''
 +
 +**¿ Eliminar el paquete traceroute.deb y todas sus dependencias con dpkg?**
 +
 +  * ''dpkg -s''
 +  * ''dpkg -P'' (**Solución**)
 +  * ''dpkg -i''
 +  * Ninguna de las anteriores. 
 +
 +<WRAP center round info 60%>
 +La opción ''-P'' equivale a //%%--%%purge//, es decir, elimina todo incluidos los ficheros de configuración.
 +</WRAP>
 +
 +
 +**¿ Comando sar mostrar estadísticas de red?**
 +
 +  * ''sar -c''
 +  * ''sar -n'' (**Solución**)
 +  * ''sart -ct''
 +  * ''sar -v''
 +
 +**¿ Que comando muestra el mapa de la memoria de un proceso?**
 +
 +  * ''ps -ef''
 +  * ''job''
 +  * ''pt-t''
 +  * ''pmap'' (**Solución**)
 +
 +**¿ Que hace el comando ''partprobe''?**
 +
 +  * Sincroniza los datos del disco duro
 +  * Sincroniza la tabla de particiones (**Solución**)
 +  * Particiona los discos duros
 +  * No sincroniza. 
 +
 +**¿ El usuario operador puede cambiar la prioridad a -5  al proceso 1092?**
 +
 +  * Si, si la maquina virtual es de Linux
 +  * No, solo si utilizo sudo
 +  * No, solamente lo puede realizar el usuario root (**Solución**)
 +  * si
 +
informatica/certificaciones/lpic/lpic-2/201_tests_examen.1621511496.txt.gz · Última modificación: por tempwin