DC-OS | Fresco Play

Question 1: DC/OS is a distributed data center operating system based on

Answer: Apache Mesos

Question 2: DC/OS interface is used for remote management and monitoring of

Answer: Clusters and Services

Question 3: Mesos is a proprietary software distributed systems kernel at the heart of DC/OS

Answer: False

Question 4: What is the interface that is used to manage services and clusters in DC/OS?

Answer: Both of the options

Question 5: DC/OS by itself is a

Answer: All of the options

Question 6: Similar to Linux OS, DC/OS has both system space (aka kernel space) and user space

Answer: True

Question 7: ___ accept resource offers and allocate their resources to specific tasks

Answer: Schedulers

Question 8: Cluster management by DC/OS is primarily done by

Answer: Apache Mesos

Question 9: A cluster with one master node is used for

Answer: Development

Question 10: What are the DC/OS networks?

Answer: Infrastructure and Virtual Network

Question 11: ____ is the built-in task scheduler for DC/OS

Answer: Marathon

Question 12:  is the component that provides job functionality for DC/OS

Answer: Metronome

Question 13: What is the DC/OS node, in which the user tasks are run?

Answer: Agent node

Question 14: __________ Package Repository connects to a library of open source industry-standard schedulers, services, and applications

Answer: Mesosphere Universe

Question 15: What is the DC/OS Command to display the list of config properties?

Answer: dcos config show

Question 16: What is the DC/OS command to list the marathon app?

Answer: dcos marathon app list

Question 17: What is the DC/OS command to print the version information?

Answer: Both

Question 18: What is the DC/OS command to validate the config file?

Answer: dcos config validate

Question 19: What is the DC/OS command to log in to DC/OS authentication?

Answer: dcos auth login

Question 20: What is the DC/OS Command to set config properties mesos_master_url?

Answer: dcos config set core.mesos_master_url 52.34.160.132:5050

Question 21: What is the DC/OS Command to search a package 'jenkins'?

Answer: dcos package search jenkins

Question 22: Marathon supports a high availability mode of operation using

Answer: Zookeeper

Question 23: Marthon LB is a

Answer: North south load balancer

Question 24: _ displays a comprehensive view of all of the services that you are running

Answer: Services tab

Question 25: A Mesos executor is a method by which Mesos agents launch tasks

Answer: True

Question 26: ___ provides service discovery within DC/OS clusters

Answer: Mesos-DNS

Question 27: Minuteman is a

Answer: east west load balancer

Question 28: DC/OS does not support Container Networking Interface (CNI)

Answer: False

Question 29: _ is used to set up an HTTP proxy in front of the DC/OS Admin Router

Answer: HAProxy

Question 30: DC/OS does not provide metrics for

Answer: Mesos

Question 31: __is the home page of the DC/OS web interface and provides an overview of your DC/OS cluster

Answer: Dashboard Panel

Question 32: DC/OS web interface includes link CLI installation

Answer: True

Question 33: Minuteman is a

Answer: east west load balancer

Question 34: ZooKeeper is a high performance coordination service to manage DC/OS

Answer: False

Question 35: Which is a valid way to install DC/OS Web interface?

Answer: None of the options

Question 36: To access the logs of the agent node, we need

Answer: Mesos id

Question 37: Which is an incorrect way to retrieve the logs in DC/OS?

Answer: None of the options

Question 38: DC/OS Web interface provides _________ tab to manage user access.

Answer: Organization Tab

Question 39: DC/OS repositories can be managed from

Answer: Settings Tab

Question 40: Which is not a valid storage option for DC/OS

Answer: NFS Server

Question 41: What is the DC/OS Command to search a package 'cassandra'?

Answer: dcos package describe cassandra

Question 42: Which is not a valid node in DC/OS?

Answer: Executor Node