Module #7 Flashcards
What is the average cost per hour of an enterprise outage for the largest enterprises?
$700,000.00 per hour
$500,000.00 per hour
$300,000.00 per hour
$100,000.00 per hour
$300,000.00 per hour
What is idempotency in IT automation?
the quality of software
the reusing of shell commands
the security level of software
the scripting of shell commands
the quality of software
A student is creating an Ansible playbook to practice management automation of a Cisco router. Which command should the student add to the playbook to find the interface names, assigned IP addresses, and status of interfaces on the router?
show running-config
show ip interface brief
show ip route
ip address
show ip interface brief
When following the best practices and core principles of DevOps, how is failure considered?
Failure is normal.
Failure is simply “repair work”.
Failure should only occur in Ops.
Failure should not influence software design methodology.
Failure is normal.
What is a canary deployment?
the switchover of selected users to a new release deployment
a production test using a chaos tool to inject random failures with a limited blast-radius
a server-by-server switchover to a new release deployment
the use of two identical servers with load balancers to redirect traffic for an entire server as needed
the switchover of selected users to a new release deployment
What are two challenges of cloud computing technologies? (Choose two.)
utilizing generic host environments
maintaining access control
maintaining configurational consistency of platforms
managing costs
requesting additional resources
maintaining access control
managing costs
Which technology can run on bare metal or on large virtual machines to simulate Cisco networks and utilities?
Git
VIRL
Puppet
Ansible
VIRL
An analyst is using Ansible to perform remote management tasks on network devices. Which file type is in the Ansible file structure that describes the devices under management?
role folders and files
variable file
inventory file
playbook file
inventory file
What is an error budget in the DevOps/SRE culture?
It is the planned percentage of a monetary contract that is given back to a customer when an SLO is not met.
It is a best-practice metric for availability, equivalent to only six minutes of unplanned offline time per year.
It is an internal-only metric for calculating the actual availability of a service.
It is a method for measuring allowable errors as a gate on release speed.
It is a method for measuring allowable errors as a gate on release speed.
Which programming language is used by Chef to execute the recipes?
Bash
Python
Ruby
Javascript
Ruby
A developer issues a Linux command python3 -m venv devenv. What is the developer trying to achieve?
to install the devnet tool sets in the Python 3 virtual environment named venv
to activate the Python 3 virtual environment named devenv
to enter the Python 3 virtual environment named venv using the devnet tool sets
to create a Python 3 virtual environment named devenv
to create a Python 3 virtual environment named devenv
Which statement describes the declarative static model?
A declarative model will examine present circumstances and bring real infrastructure into alignment in order to reach a desired state.
A declarative model will execute code that is sequentially task-driven instead of focusing on deployment-specific details.
A declarative model will follow a specific order of sequential steps in order to effect changes on a target system.
A declarative model will subdivide code into top-down sections and condition-driven handlers.
A declarative model will examine present circumstances and bring real infrastructure into alignment in order to reach a desired state.
What is an unopinionated component in a software ecosystem?
a component that does not show an increased preference for specific companion components or architectures unless those components or architectures are necessary
a component that is classified as open source and does not require the implementation of specific vendor products
a component that may function in a limited ability in order to compensate for the selection of companion components or architectures
a component that requires a specific companion component in order to provide full stack implementation
a component that does not show an increased preference for specific companion components or architectures unless those components or architectures are necessary
In the use of container technologies, what is a function of platform abstraction when considering the deployment of a product in a cloud environment?
Traditional complementary software components such as a database server and web server would be implemented as a single containerized application.
Applications require re-engineering in order to implement scalability and consolidation.
A containerized app can run on a generically-specified host environment.
Applications are aware of underlying hardware configurations and are customized to provide increased functionality.
A containerized app can run on a generically-specified host environment.
A student is setting up the DEVASC-LAB VM and CSR1000v VM in VirtualBox that is installed on the local computer. Both VMs are imported to the VirtualBox successfully. The student starts both VMs and tries to verify communications to the CSR1000v VM by opening a web browser on the local computer and enters the URL https://192.168.56.101. After a few seconds, an error message displays that “The connection has timed out”. How can the student verify the IP address assigned by DHCP to the CSR1000v virtual router?
Issue the ping 192.168.56.101 command on the local computer.
Issue the show ip interface brief command in the CSR1000v VM.
Issue the show running-config command in the CSR1000v VM.
Issue the ifconfig command in the CSR1000v VM.
Issue the show ip interface brief command in the CSR1000v VM.
