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--- informatica:sistemas_operativos:cursos:docker_avanzado:tests [2023/10/17 20:28] – [Tests] tempwin
+++ informatica:sistemas_operativos:cursos:docker_avanzado:tests [2023/10/19 18:39] (actual) – [Preguntas de certificación] tempwin
@@ Línea 15: / Línea 15: @@
   * A. ''docker container logs nginx --volumes''
-  * B. ''docker container inspect nginx''
+  * B. ''docker container inspect nginx'' (**Correcta**)
-  * C. ''docker volume inspect nginx'' (**Correcta**)
+  * C. ''docker volume inspect nginx''
   * D. ''docker volume logs nginx --containers''
@@ Línea 23: / Línea 23: @@
   * A. ''docker run --del -v /foo busybox''
   * B. ''docker run --read-only -v /foo busybox''
-  * C. ''docker run --rm -v /foo busybox'' (**Correcta**)
+  * C. ''docker run --rm -v /foo busybox''
   * D. ''docker run --remove -v /foo busybox''
-**A container named "analytics" that stores results in a volume called "data" was created** (''docker run -d --name=analytics -v data:/data app1''). **How are the results accessed in "data" with another container called "app2"?**
+No hay ninguna opción correcta ya que en todos los casos es incorrecta la sintaxis de los volúmenes.
+**A container named "analytics" that stores results in a volume called "data" was created** (''docker run -d %%--%%name=analytics -v data:/data app1''). **How are the results accessed in "data" with another container called "app2"?**
   * A. ''docker run -d --name=reports --volume=data app2''
@@ Línea 51: / Línea 53: @@
   * A. A resource limit and a resource reservation can be used interchangeably.
-  * B. A resource limit is a soft limit for your service, while a reservation is hard limit and the docker engine will do its best to keep your service at the limit. (**Correcta**)
+  * B. A resource limit is a soft limit for your service, while a reservation is hard limit and the docker engine will do its best to keep your service at the limit.
   * C. A resource limit is used to find a host with adequate resources for scheduling a hard limit for your service, while a reservation is hard limit for your service.
   * D. A resource limit is hard limit for your service, while a reservation is used to find a host with
-adequate resources for scheduling.
+adequate resources for scheduling. (**Correcta**)
 **Which of the following namespaces is disabled by default and must be enabled at Docker engine runtime in order to be used?**
@@ Línea 62: / Línea 64: @@
   * C. net
   * D. mnt
+<WRAP center round info 60%>
+Útil para acceder por ejemplo a LDAP
+</WRAP>
 **Which of the following statements is true about secrets?**
   * A. Secrets can be created from any node in the cluster.
   * B. Secrets can be modified after they are created.
-  * C. Secret are stored unencrypted on manager nodes.
+  * C. Secrets are stored unencrypted on manager nodes.
   * D. Secrets can be created using standard input (STDIN) and a file. (**Correcta**)
+<WRAP center round info 60%>
+Existe el comando ''docker secret create''
+</WRAP>
 **Following the principle of least privilege, which of the following methods can be used to securely grant access to the specific user to communicate to a Docker engine? (Choose two.)**
   * A. Utilize the ''%%--%%host 0.0.0.0:2375'' option to the Docker daemon to listen on port 2375 over TCP on all interfaces
-  * B. Utilize openssl to create TLS client and server certificates, configuring the Docker engine to use with mutual TLS over TCP.
+  * B. Utilize openssl to create TLS client and server certificates, configuring the Docker engine to use with mutual TLS over TCP. (**Correcta**)
   * C. Utilize the ''%%--%%host 127.0.0.1:2375'' option to the Docker daemon to listen on port 2375 over TCP on localhost
   * D. Give the user root access to the server to allow them to run Docker commands as root.
   * E. Add the user to the 'docker' group on the server or specify the grouè with the '--group' Docker daemon option. (**Correcta**)