[Dec-2024] Valid Way To Pass Lpi Exam Dumps with 701-100 Exam Study Guide
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NEW QUESTION # 29
A declarative Jenkins pipeline contains the following excerpt:
parameters {
string (name: 'TargetEnvironment', defaultValue: 'staging', description: 'Target environment')
}
How can a task use the value provided for TargetEnvironment?
- A. $TargetEnvironment
- B. $ENV{TargetEnvironment}
- C. %TargetEnvironment%
- D. ${params.TargetEnvironment}
- E. {{TargetEnvironment}}
Answer: A
NEW QUESTION # 30
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. They export their file system via NFS with full write permissions without any additional restrictions.
- D. The vagrant user can use sudo to obtain root privileges without additional authentication.
- E. Their whole file system, including configuration files, is writable by any user, including vagrant.
Answer: A,B,D
Explanation:
Reference https://www.vagrantup.com/docs/boxes/base.html
NEW QUESTION # 31
Which statements are true regarding databases during the deployment of a new release of a service using canary deployment? (Choose two correct answers.)
- A. Traffic to the database will significantly increase because of the additional service instance.
- B. Canary deployments require two synchronized instances of each database.
- C. The database schema must be compatible to all running versions of a service.
- D. Changes to the database schema can take long and reduce the database performance.
- E. The database is locked while its content is copied to the canary database.
Answer: C,D
Explanation:
* C. When performing a canary deployment, the database schema needs to be compatible with both the new version and the old version of the service to ensure smooth operation and rollback if necessary.
* A. Modifying the database schema, especially in a large and complex database, can be time-consuming and may negatively impact performance due to the migration processes and locks required during the
* schema change.
References:
* Canary Deployments
* Database Schema Changes
NEW QUESTION # 32
Which Ansible keyword is used in a playbook to store the result (i.e return code) ot a task in a variable?
- A. output
- B. register
- C. result
- D. return
- E. set_fact
Answer: A
NEW QUESTION # 33
What does the command packer validate template.json do?
- A. The command verifies that the latest build of the template can be run without downloading additional images or artifacts.
- B. The command verifies that images generated previously by template.json still use the most recent source images.
- C. The command verifies that all existing artifacts generated by template.json have their original checksums.
- D. The command verifies that the file template.json is a syntactically correct and complete Packer template.
- E. The command verifies that all source images referenced in template.json are available and have valid cryptographic signatures.
Answer: D
Explanation:
Reference https://www.packer.io/docs/commands/validate.html
The packer validate template.json command checks the specified Packer template file for syntax correctness and completeness. This command ensures that the template is properly structured and ready to be used for building images.
* Syntax Check: Verifies the JSON syntax of the template.
* Completeness Check: Ensures all required fields and configurations are present in the template.
References:
* Packer Documentation - validate
NEW QUESTION # 34
Which of the following statements describes the principal concept behind test driven development?
- A. Tests are written before the function / method is implemented.
- B. All tests are generated automatically from the tested source code.
- C. The only acceptable reason to write a test is to prevent fixed bugs from occurring again.
- D. Instead of testing software automatically, manual tests are performed and logged daily.
- E. Tests may not be written by the same development team that wrote the tested code.
Answer: A
Explanation:
Reference https://en.wikipedia.org/wiki/Test-driven_development
NEW QUESTION # 35
Which of the following statements is true about load balancers?
- A. Load balancers cannot use connection content, such as HTTP cookies, to route traffic.
- B. Load balancer help to improve the availability and scalability of a service.
- C. Load balancer require access to private keys in order to be able to forward HTTPS traffic.
- D. Load balancers are a security risk because they obfuscate the origin of connections.
- E. Load balancers are a single point of failure because they cannot be deployed redundantly.
Answer: B
Explanation:
Load balancers distribute incoming network traffic across multiple servers, improving the availability and scalability of applications. They help to ensure that no single server becomes overwhelmed, thereby enhancing the overall performance and reliability of the service.
* Availability: Distributing traffic prevents any single server from becoming a bottleneck or point of failure.
* Scalability: Adding more servers behind the load balancer allows the system to handle increased traffic.
* Redundancy: Load balancers can be deployed in a redundant configuration to prevent them from being a single point of failure.
References:
* Load Balancing - NGINX
* AWS Documentation - Elastic Load Balancing
NEW QUESTION # 36
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. Long-term release and feature management.
- E. Absolute planning adherence.
Answer: C,D
NEW QUESTION # 37
Which element exist in the highest level of the definition of every Kubernetes Object? (Specify the name OF THE ELEMENTS, without any values.)
Answer:
Explanation:
GroupPriorityMininum
NEW QUESTION # 38
Which of the following container names could have been assigned automatically by Docker?
- A. 2.0.17.172
- B. container
- C. clever_ritchie
- D. c0023817
- E. docKor-c00001
Answer: C
NEW QUESTION # 39
Which docker-machine sub command outputs a list of commands that set environment variables which are required to make docker work with a Docker host managed by docker-machine? (Specify only the sub command without any path or parameters.)
Answer:
Explanation:
env
Explanation:
The docker-machine env subcommand outputs a list of commands that set environment variables required to make Docker work with a Docker host managed by docker-machine. These variables configure the Docker client to communicate with the Docker Engine on the specified host.
References: Docker Documentation - docker-machine env
NEW QUESTION # 40
Which of the following sections must exist in a Packer template?
- A. images
- B. provisioners
- C. post-processsors
- D. builders
- E. variables
Answer: D
Explanation:
Packer is a tool for creating machine and container images for multiple platforms from a single source configuration. A Packer template consists of various sections, but the builders section is mandatory.
* builders: This section defines the builders that Packer will use to create the machine images. It specifies the platform, source image, and configuration required to build the final image.
The other sections are optional but can be included for more complex configurations:
* A. images: Not a standard section in Packer templates.
* B. provisioners: Optional section used for provisioning the image after it is built.
* D. variables: Optional section for defining variables to be used in the template.
* E. post-processors: Optional section for defining actions to be taken after the image is built.
References:
* Packer Documentation - Template
NEW QUESTION # 41
What is tested by unit tests?
- A. The formal validity of a service's external REST API.
- B. The syntactical correctness of the source code of a software component.
- C. The correctness of a specific function of a software component.
- D. The integration of multiple component of the same software.
- E. The throughput, load capacity and latency of a service.
Answer: C
NEW QUESTION # 42
An Ansible variable file contains the following content:
myapp:
option1: one
Which of the following strings can be used to reference the defined variable? (Choose two correct answers).
- A. option1@myapp
- B. myapp['option1']
- C. myapp(option1);
- D. myapp{{option1}}
- E. myapp.option1
Answer: C,D
NEW QUESTION # 43
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. #1 /user/bin/cloud-init
- D. ------ cloud-config
- E. cloud-config:
Answer: A
Explanation:
Explanation
https://www.digitalocean.com/community/tutorials/how-to-use-cloud-config-for-your-initial-server-setup
NEW QUESTION # 44
How does Prometheus gather information about monitored hosts and services?
- A. It uses HTTP to retrieve JSON encoded metrics from the monitored objects.
- B. It opens a webhook where monitored applications have to submit various metrics.
- C. It implements the ICMP and SNMP protocols to ping and query remote services.
- D. It queries a relational database for metrics written to the database by monitored applications.
- E. It runs scripts on the Prometheus server which perform tests and return various metrics.
Answer: E
Explanation:
Explanation/Reference:
Reference https://dzone.com/articles/monitoring-with-prometheus
NEW QUESTION # 45
Which section of the Prometheus configuration defines which nodes are monitored?
- A. scrape_config
- B. targets
- C. nodes
- D. listener
- E. rules
Answer: A
Explanation:
Explanation/Reference: https://prometheus.io/docs/prometheus/latest/getting_star
NEW QUESTION # 46
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