TCP and UDP Functions: DevNet Associate 1.0 Final Exam Quiz and Flashcards

11 Questions

What type of cloud would be most appropriate for a pharmaceutical company needing to store employee data and company-specific applications with strict access security?

Private cloud

What is a potential function provided by an implementation of a read-only automation solution?

Retrieve information only

Which three statements correctly describe the function of TCP or UDP when data is being sent from a source PC to a destination server?

Connection-oriented protocol

What type of attack targets an SQL database through a user's input field?

SQL injection

Which command can be used on Linux and MAC hosts to retrieve IP addressing information?

ifconfig

What is the purpose of RESTCON?

Requesting and responding with data in different formats

Which resource within DevNet is best suited for sharing solutions and tool kits within the community?

Platforms provided by DevNet

What role was created to combine Dev and Ops skills, implementing a best-practices playbook for doing Ops with software methods?

DevNet exchange

If a network engineer does not specify a tag when creating a Docker container using 'docker build', what tag will be used by default?

Latest

A student who learns best by doing and is interested in network programmability would benefit most from which DevNet resource?

pyATS ecology

What is the main difference between functions and methods in Python programming?

Functions can be called independently while methods are always associated with a class.

Study Notes

DevNet Associate (Version 1.0)

Cloud Computing

A pharmaceutical company would use a private cloud to store employee data and company-specific applications with strict access security.

Automation

A read-only automation solution provides data retrieval and analysis functions.

Networking

TCP and UDP protocols ensure reliable data transfer between a source PC and a destination server.
TCP ensures data delivery in the correct order, whereas UDP prioritizes speed over accuracy.
IP addressing information can be obtained using the ifconfig command on Linux and MAC hosts.

Security

SQL injection attacks target SQL databases using user input fields.
A reverse proxy is implemented as a security solution to protect internal networks from external attacks.

Networking Devices

A Layer 2 switch is used to segment a network for improved security, scalability, and performance.
VLANs allow multiple networks to span across multiple switches, and a broadcast Ethernet frame is only sent to devices within the same VLAN.

Development Tools

Jenkins is a tool used in a Continuous Integration pipeline to build and test source code.
Docker containers are used to create isolated environments for application development.
Ansible is used to manage remote network devices using YAML files.

DevNet Resources

DevNet Exchange is a platform where community members share solutions, tool kits, and other resources.
DevNet Code Exchange is used to find Python libraries that support APIs for specific Cisco products.
DevNet Sandbox is used to test custom code in a production-like environment.

DevOps

Immutable infrastructure in DevOps ensures that infrastructure components are replaced rather than changed.
80% of IT outages are caused by human error.

Programming

Bash is the default shell commonly used on macOS and Linux.
YAML files use --- to separate documents.
Functions in Python are reusable blocks of code, while methods are functions associated with objects or classes.

DevNet Associate (Version 1.0) Final Exam Answers