Linux Professional Institute DevOps Tools Engineer Exam 701 Exam
Last exam update: Dec 14 ,2024
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Question 1
An online shop needs to store information about clients and orders. A list of fixed properties for clients and orders exists. The data storage should enforce specific data types on these properties and ensure that each order is associated with an existing client. Which of the following cloud services is capable of fulfilling these requirements?
A.
An in-memory database like memcached.
B.
An object store like OpenStack Swift.
C.
A messaging service like OpenStack Zaqar.
D.
A NoSQL database like MongoDB.
E.
A relational database like MariaDB.
Answer:
E
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Question 2
What is tested by unit tests?
A.
The syntactical correctness of the source code of a software component.
B.
The formal validity of a service’s external REST API.
C.
The integration of multiple component of the same software.
D.
The correctness of a specific function of a software component.
E.
The throughput, load capacity and latency of a service.
Answer:
D
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Question 3
Which of the following tasks can Logstash fulfill without using other components of the Elastic Stack? (Choose three.)
A.
Receive log data from remote systems.
B.
Store log data persistently.
C.
Aggregate log data over a period of time.
D.
Process log data to extract information.
E.
Forward log data to other services.
Answer:
C,D,E
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Question 4
Which of the following conditionals exist in an Ansible playbook? (Choose three correct answers.) A. with_nodes B. with_playbook C. with_sequence D. with_items E. with_nested
Which of the following kinds of data are suitable as artifacts in a continuous delivery pipeline? (Choose three correct answers.)
A.
Executable applications such as .exe files or .jar packages.
B.
Copies of the contents of source code repositories.
C.
Build configuration files such as Makefiles or Maven configurations.
D.
Compiled packages to be installed by a Linux package manager.
E.
Docker container images which contain an application.
Answer:
B,C,D
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Question 6
Which of the following properties apply to a content delivery network? (Choose three correct answers.)
A.
CDNs require all elements of a web site to be served by the same CDN.
B.
CDNs can stream large media files such as movies or music to clients.
C.
CDNs are present in multiple locations to serve content close to clients.
D.
CDNs serve huge numbers of clients with high bandwidth and low latency.
E.
CDNs forward all requests to a backend server and never store content locally.
Answer:
C,D,E
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Question 7
Which of the following goals are favored by agile software development methodologies? (Choose two correct answers.)
A.
Self-organization of teams.
B.
Central governance and control.
C.
Flexibility of processes.
D.
Absolute planning adherence.
E.
Long-term release and feature management.
Answer:
C,E
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Question 8
Which of the following statements describes the principal concept behind test driven development? A. Tests may not be written by the same development team that wrote the tested code. B. All tests are generated automatically from the tested source code. C. Tests are written before the function / method is implemented. D. The only acceptable reason to write a test is to prevent fixed bugs from occurring again. E. Instead of testing software automatically, manual tests are performed and logged daily.
Answer:
C Reference //en.wikipedia.org/wiki/Test-driven_development
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Question 9
Which of the following elements are presents in a Vagrant box file? (Choose two correct answers.)
A.
A Vagrant guest configuration file that is used to create instances of the box.
B.
Configuration files for provisioners such as Ansible.
C.
The installer for the Vagrant version which is required to run the box.
D.
A metadata file describing the box and its requirements.
E.
A base file system image in a format supported by the provider of the box.
Answer:
B,D
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Question 10
CORRECT TEXT Which vagrant sub command executes a command in a running box? (Specify only the sub command without any path or parameters.)
Answer:
ssh
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Question 11
How is cloud-init integrated with a managed system image?
A.
cloud-init provides the cloud-init-worker command which has to be invoked periodically within the running instance.
B.
cloud-init provides systemd units which must be included in several stages of the booting process of the instance.
C.
cloud-init provides its own startup mechanism which replaces the instances original init system, such as systemd.
D.
cloud-init provides a Linux kernel module that must be included and loaded in the instances initramfs.
E.
cloud-init provides the cloud-init-daemon service which is launched during startup and keeps the instance in sync with the desired configuration.
Answer:
D
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Question 12
Which of the following sections must exist in a Packer template?
A.
images
B.
provisioners
C.
builders
D.
variables
E.
post-processsors
Answer:
B
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Question 13
What must be the first line of a plain text user-data configuration containing YAML configuration for cloud-init? A. cloud-config: B. --- cloud-config C. #!/usr/bin/cloud-init D. [cloud-config] E. #cloud-config
Answer:
E Reference //cloudinit.readthedocs.io/en/latest/topics/examples.html
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Question 14
How does Vagrant run virtual machines?
A.
Vagrant uses a vagrant-specific hypervisor called VagrantVM.
B.
Vagrant has to be run within a running virtual machine which is not controlled by Vagrant.
C.
Vagrant ships with an embedded version of VirtualBox.
D.
Vagrant uses so-called provides which control external hypervisors such as VirtualBox.
E.
Vagrant generates virtual machine images but does not provide a mechanism to run them.
Answer:
D
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Question 15
Which security issues exist for most publicly available Vagrant boxes? (Choose three correct answers.) A. They accept SSH logins from the user vagrant with the password vagrant. B. They accept SSH logins from the user vagrant with a publicly available SSH key pair. C. The vagrant user can use sudo to obtain root privileges without additional authentication. D. Their whole file system, including configuration files, is writable by any user, including vagrant. E. They export their file system via NFS with full write permissions without any additional restrictions.