Ana Luiza Cerchiari

🎯 Professional Summary

✅ Senior Software Engineer / Cloud Architecture: Experience in Banking (Itaú/Bradesco/Santander), Insurance (Porto/SulAmérica), Telecom (Claro)
✅ Cloud Software Engineer: Expertise in platform foundations, Tech Lead roles, and SRE practices
✅ Skills: Multi-Cloud, Kubernetes, Event-Driven Architectures, Security, Developer Experience (DevEx)

🎓 Educational Background & Expertise

I have higher education in Technology and have completed three postgraduate degrees, including specializations in Data Science and Cloud Computing. In addition to my formal education, I have completed advanced courses in AWS, Azure, and Cisco, which have provided me with cutting-edge knowledge in cloud architecture, data science, and network management.

Cisco Networking Academy Education

Approximately 290 hours completed through the Cisco Networking Academy (NetAcad) in partnership with SENAC, recognized for its technical rigor and hands-on approach.

1. Introduction to Networks

Introduction to Networks

• Networking Today: networks affect our lives, network components, network representations and topologies, common types of networks, Internet connections, reliable networks, network trends, network security, the IT professional

• Basic Switch and End Device Configuration: Cisco IOS access, IOS navigation, command structure, basic device configuration, save configurations, ports and addresses, configure IP addressing, verify connectivity

• Protocols and Models: the rules, protocols, protocol suites, standards organizations, reference models, data encapsulation, data access

• Physical & Data Link Layers: purpose of the physical layer, physical layer characteristics, copper cabling, UTP cabling, fiber-optic cabling, wireless media, purpose of the data link layer, topologies, data link frame

• Ethernet Switching: Ethernet switching concepts, frame forwarding, VLAN basics, switch operations

• Network Layer: network layer characteristics, IPv4 packet, IPv6 packet, how a host routes, introduction to routing

• Address Resolution: MAC and IP addresses, ARP, IPv6 neighbor discovery

• Basic Router Configuration: configure initial router settings, configure interfaces, configure the default gateway

• IPv4 Addressing: IPv4 address structure, unicast, broadcast and multicast, types of IPv4 addresses, network segmentation, subnetting IPv4 networks, subnetting slash 16 and slash 8 prefixes, subnetting to meet requirements, VLSM, structured design

• IPv6 Addressing: IPv6 address representation, address types, GUA and LLA static configuration, dynamic addressing for GUAs, dynamic addressing for LLAs, IPv6 multicast addresses, subnetting IPv6 networks

• ICMP: ICMP messages, ping and traceroute tests

• Transport Layer: transportation of data, TCP overview, UDP overview, port numbers, TCP communication process, reliability and flow control, UDP communication

• Application Layer: application, presentation, and session layers, peer-to-peer, web and email protocols Download and Install Packet Tracer

• Download and Install Packet Tracer

• Video - Getting Started in Cisco Packet Tracer

• Packet Tracer - Logical and Physical Mode Exploration

• Check Your Understanding - Network Components

• Check Your Understanding - Network Representations and Topologies

• Check Your Understanding - Common Types of Networks

• Check Your Understanding - Internet Connections

• Check Your Understanding - Reliable Networks

• Check Your Understanding - Network Trends

• Check Your Understanding - Network Security

• Lab - Research IT and Networking Job Opportunities

• Check Your Understanding - Physical Layer Characteristics

• Check Your Understanding - Copper Cabling

• Activity - Cable Pinouts

• Check Your Understanding - Fiber-Optic Cabling

• Check Your Understanding - Wireless Media

• Packet Tracer - Connect a Wired and Wireless LAN

• Lab - View Wired and Wireless NIC Information

• Packet Tracer - Physical Layer Exploration

• Packet Tracer - Connect the Physical Layer

• https://www.netacad.com/courses/ccna-introduction-networks?courseLang=en-US

2. Switching, Routing, and Wireless Essentials

• Introduction
• Configure a Switch with Initial Settings
• Switch Boot Sequence
• The boot system Command
• Switch LED Indicators
• Recovering from a System Crash
• Switch Management Access
• Switch SVI Configuration Example
• Lab - Basic Switch Configuration- Configure Switch Ports
• Duplex Communication
• Configure Switch Ports at the Physical Layer
• Auto-MDIX
• Switch Verification Commands
• Verify Switch Port Configuration
• Network Access Layer Issues
• Interface Input and Output Errors
• Troubleshooting Network Access Layer Issues
• Syntax Checker - Configure Switch Ports- Secure Remote Access
• Telnet Operation
• SSH Operation
• Verify the Switch Supports SSH
• Configure SSH
• Verify SSH is Operational
• Packet Tracer - Configure SSH- Basic Router Configuration
• Configure Basic Router Settings
• Syntax Checker - Configure Basic Router Settings
• Dual Stack Topology
• Configure Router Interfaces
• Syntax Checker - Configure Router Interfaces
• IPv4 Loopback Interfaces
• Packet Tracer - Configure Router Interfaces- Verify Directly Connected Networks
• Interface Verification Commands
• Verify Interface Status
• Verify IPv6 Link Local and Multicast Addresses
• Verify Interface Configuration
• Verify Routes
• Filter Show Command Output
• Syntax Checker - Filter Show Command Output
• Command History Feature
• Syntax Checker - Command History Features
• Packet Tracer - Verify Directly Connected Networks
• Check Your Understanding - Verify Directly Connected Networks- Module Practice and Quiz
• Checkpoint Exam: Switching Concepts, VLANs, and Inter-VLAN Routing Exam

Switching Concepts- Introduction

• Why should I take this module?
• What will I learn to do in this module?- Frame Forwarding
• Switching in Networking
• The Switch MAC Address Table
• The Switch Learn and Forward Method
• Video - MAC Address Tables on Connected Switches
• Switching Forwarding Methods
• Store-and-Forward Switching
• Cut-Through Switching
• Activity - Switch It!- Collision and Broadcast Domains
• Collision Domains
• Broadcast Domains
• Alleviate Network Congestion
• Check Your Understanding - Switching Domains- Module Practice and Quiz
• What did I learn in this module?
• Module Quiz - Switching Concepts

VLANs- Introduction

• Why should I take this module?
• What will I learn to do in this module?- Overview of VLANs
• VLAN Definitions
• Benefits of a VLAN Design
• Types of VLANs
• Packet Tracer - Who Hears the Broadcast?
• Check Your Understanding - Overview of VLANs- VLANs in a Multi-Switched Environment
• Defining VLAN Trunks
• Network without VLANs
• Network with VLANs
• VLAN Identification with a Tag
• Native VLANs and 802.1Q Tagging
• Voice VLAN Tagging
• Voice VLAN Verification Example
• Packet Tracer - Investigate a VLAN Implementation
• Check Your Understanding - VLANs in a Multi-Switch Environment- VLAN Configuration
• VLAN Ranges on Catalyst Switches
• VLAN Creation Commands
• VLAN Creation Example
• VLAN Port Assignment Commands
• VLAN Port Assignment Example
• Data and Voice VLANs
• Data and Voice VLAN Example
• Verify VLAN Information
• Change VLAN Port Membership
• Delete VLANs
• Syntax Checker - VLAN Configuration
• Packet Tracer - VLAN Configuration- VLAN Trunks
• Trunk Configuration Commands
• Trunk Configuration Example
• Verify Trunk Configuration
• Reset the Trunk to the Default State
• Packet Tracer - Configure Trunks
• Lab - Configure VLANs and Trunking- Dynamic Trunking Protocol
• Introduction to DTP
• Negotiated Interface Modes
• Results of a DTP Configuration
• Verify DTP Mode
• Packet Tracer - Configure DTP
• Check Your Understanding - Dynamic Trunking Protocol- Module Practice and Quiz
• Packet Tracer - Implement VLANs and Trunking
• Lab - Implement VLANs and Trunking
• What did I learn in this module?
• Module Quiz - VLANs

Inter-VLAN Routing- Introduction

• Why should I take this module?
• What will I learn to do in this module?- Inter-VLAN Routing Operation
• What is Inter-VLAN Routing?
• Legacy Inter-VLAN Routing
• Router-on-a-Stick Inter-VLAN Routing
• Inter-VLAN Routing on a Layer 3 Switch
• Check Your Understanding - Inter-VLAN Routing Operation- Router-on-a-Stick Inter-VLAN Routing
• Router-on-a-Stick Scenario
• S1 VLAN and Trunking Configuration
• S2 VLAN and Trunking Configuration
• R1 Subinterface Configuration
• Verify Connectivity Between PC1 and PC2
• Router-on-a-Stick Inter-VLAN Routing Verification
• Packet Tracer - Configure Router-on-a-Stick Inter-VLAN Routing
• Lab - Configure Router-on-a-Stick Inter-VLAN Routing- Inter-VLAN Routing using Layer 3 Switches
• Layer 3 Switch Inter-VLAN Routing
• Layer 3 Switch Scenario
• Layer 3 Switch Configuration
• Layer 3 Switch Inter-VLAN Routing Verification
• Routing on a Layer 3 Switch
• Routing Scenario on a Layer 3 Switch
• Routing Configuration on a Layer 3 Switch
• Packet Tracer - Configure Layer 3 Switching and Inter-VLAN Routing- Troubleshoot Inter-VLAN Routing
• Common Inter-VLAN Issues
• Troubleshoot Inter-VLAN Routing Scenario
• Missing VLANs
• Switch Trunk Port Issues
• Switch Access Port Issues
• Router Configuration Issues
• Check Your Understanding - Troubleshoot Inter-VLAN Routing
• Packet Tracer - Troubleshoot Inter-VLAN Routing
• Lab - Troubleshoot Inter-VLAN Routing- Module Practice and Quiz
• Packet Tracer - Inter-VLAN Routing Challenge
• Lab - Implement Inter-VLAN Routing
• What did I learn in this module?
• Module Quiz - Inter-VLAN Routing

STP Concepts- Introduction

• Why should I take this module?
• What will I learn to do in this module?- Purpose of STP
• Redundancy in Layer 2 Switched Networks
• Spanning Tree Protocol
• STP Recalculation
• Issues with Redundant Switch Links
• Layer 2 Loops
• Broadcast Storm
• The Spanning Tree Algorithm
• Video - Observe STP Operation
• Packet Tracer - Investigate STP Loop Prevention
• Check Your Understanding - Purpose of STP- STP Operations
• Steps to a Loop-Free Topology
• Elect the Root Bridge
• Impact of Default BIDs
• Determine the Root Path Cost
• Elect the Root Ports
• Elect Designated Ports
• Elect Alternate (Blocked) Ports
• Elect a Root Port from Multiple Equal-Cost Paths
• STP Timers and Port States
• Operational Details of Each Port State
• Per-VLAN Spanning Tree
• Check Your Understanding - STP Operations- Evolution of STP
• Different Versions of STP
• RSTP Concepts
• RSTP Port States and Port Roles
• PortFast and BPDU Guard
• Alternatives to STP
• Check Your Understanding - Evolution of STP- Module Practice and Quiz
• What did I learn in this module?
• Module Quiz - STP EtherChannel- Introduction
• Why should I take this module?
• What will I learn to do in this module?- EtherChannel Operation
• Link Aggregation
• EtherChannel
• Advantages of EtherChannel
• Implementation Restrictions
• AutoNegotiation Protocols
• PAgP Operation
• LACP Operation
• Check Your Understanding - EtherChannel Operation- Configure EtherChannel
• Configuration Guidelines
• LACP Configuration Example
• Packet Tracer - Configure EtherChannel- Verify and Troubleshoot EtherChannel
• Verify EtherChannel
• Common Issues with EtherChannel Configurations
• Troubleshoot EtherChannel Example
• Packet Tracer - Troubleshoot EtherChannel- Module Practice and Quiz
• What did I learn in this module?
• Module Quiz - Etherchannel DHCPv4- Introduction
• Why should I take this module?
• What will I learn to do in this module?- DHCPv4 Concepts
• DHCPv4 Server and Client
• DHCPv4 Operation
• Steps to Obtain a Lease
• Steps to Renew a Lease
• Check Your Understanding - DHCPv4 Concepts- Configure a Cisco IOS DHCPv4 Server
• Cisco IOS DHCPv4 Server
• Steps to Configure a Cisco IOS DHCPv4 Server
• Configuration Example
• DHCPv4 Verification Commands
• Verify DHCPv4 is Operational
• Syntax Checker - Configure DHCPv4
• Disable the Cisco IOS DHCPv4 Server
• DHCPv4 Relay
• Other Service Broadcasts Relayed
• Packet Tracer - Configure DHCPv4- Configure a DHCPv4 Client
• Cisco Router as a DHCPv4 Client
• Configuration Example
• Home Router as a DHCPv4 Client
• Syntax Checker - Configure a Cisco Router as DHCP Client- Module Practice and Quiz
• Packet Tracer - Implement DHCPv4
• Lab - Implement DHCPv4
• What did I learn in this module?
• Module Quiz - DHCPv4 SLAAC and DHCPv6- Introduction
• Welcome
• What will I learn to do in this module?- IPv6 GUA Assignment
• IPv6 Host Configuration
• IPv6 Host Link-Local Address
• IPv6 GUA Assignment
• Three RA Message Flags
• Check Your Understanding - IPv6 GUA Assignment- SLAAC
• SLAAC Overview
• Enabling SLAAC
• SLAAC Only Method
• ICMPv6 RS Messages
• Host Process to Generate Interface ID
• Duplicate Address Detection
• Check Your Understanding - SLAAC- DHCPv6
• DHCPv6 Operation Steps
• Stateless DHCPv6 Operation
• Enable Stateless DHCPv6 on an Interface
• Stateful DHCPv6 Operation
• Enable Stateful DHCPv6 on an Interface
• Check Your Understanding - DHCPv6- Configure DHCPv6 Server
• DHCPv6 Router Roles
• Configure a Stateless DHCPv6 Server
• Configure a Stateless DHCPv6 Client
• Configure a Stateful DHCPv6 Server
• Configure a Stateful DHCPv6 Client
• DHCPv6 Server Verification Commands
• Configure a DHCPv6 Relay Agent
• Verify the DHCPv6 Relay Agent
• Check Your Understanding - Configure DHCPv6 Server- Module Practice and Quiz
• Lab - Configure DHCPv6
• What did I learn in this module?
• Module Quiz - SLAAC and DHCPv6 FHRP Concepts

Checkpoint Exam: Available and Reliable Networks Exam

LAN Security Concepts- Introduction

• Why should I take this module?
• What will I learn in this module?- Endpoint Security
• Network Attacks Today
• Network Security Devices
• Endpoint Protection
• Cisco Email Security Appliance
• Cisco Web Security Appliance
• Check Your Understanding - Endpoint Security- Access Control
• Authentication with a Local Password
• AAA Components
• Authentication
• Authorization
• Accounting
• 802.1X
• Check Your Understanding - Access Controlt
• https://www.netacad.com/courses/switching-routing

3. Enterprise Networking, Security, and Automation

• Routing concepts: OSPFv2 single-area
• Network security: Layer 2 ACL security
• IP services: NAT/PAT, SNMP, QoS
• VPN and IPsec concepts
• Routing: OSPFv2 Single-Area Configuration
• Network Security: Layer 2 ACL Implementation
• IP Services: NAT, PAT, SNMP, QoS Overview
• VPN and IPsec Implementation
• Network Automation: SDN and REST APIs
• Learning Objectives Overview
• OSPFv2 Single-Area Detailed Configuration
• OSPF Checkpoint Exam: Routing Concepts
• Network Security Implementation
• IPv4 ACL Advanced Configuration
• Configure Standard IPv4 ACLs on Devices
• Secure VTY Access Using Standard IPv4 ACLs
• Configure Extended IPv4 ACLs on Routers
• Network Security Checkpoint Exam
• IPv4 NAT Detailed Implementation
• NAT Advantages and Disadvantages Analysis
• WAN Technologies Overview
• https://www.netacad.com/courses/ccna-enterprise-networking-security-automation?

4. Bridging and Advanced Topics

• Introduction
• Device Discovery with CDP
• Device Discovery with LLDP
• NTP
• SNMP
• Syslog
• Router and Switch File Maintenance
• IOS Image Management
• Practice Module and Quiz
• Network Documentation
• Documentation Overview
• Network Topology Diagrams
• Network Device Documentation
• Establishing a Network Baseline
• Step - Determine What Data to Collect
• Step - Identify Devices and Ports of Interest
• Step - Determine the Baseline Duration
• Data Measurement
• Check Your Understanding - Network Documentation
• Troubleshooting Process
• General Troubleshooting Procedures
• Seven-Step Troubleshooting Process
• End-User Questions
• Gather Information
• Troubleshooting Using Layered Models
• Structured Troubleshooting Methods
• Guidelines for Selecting a Troubleshooting Method
• Check Your Understanding - Troubleshooting Process
• Troubleshooting Tools
• Software Troubleshooting Tools
• Protocol Analyzers
• Hardware Troubleshooting Tools
• Syslog Server as a Troubleshooting Tool
• Check Your Understanding - Troubleshooting Tools
• Network Problem Symptoms and Causes
• Physical Layer Troubleshooting
• Data Link Layer Troubleshooting
• Network Layer Troubleshooting
• Transport Layer Troubleshooting - ACLs
• Transport Layer Troubleshooting - NAT for IPv4
• Application Layer Troubleshooting
• Check Your Understanding - Network Problem Symptoms and Causes
• IP Connectivity Troubleshooting
• End-to-End Connectivity Troubleshooting Components
• End-to-End Connectivity Problem Initiating Troubleshooting
• Step - Check the Physical Layer
• Step - Check Duplex Mismatches
• Step - Verify Addressing on the Local Network
• VLAN Assignment Troubleshooting Example
• Step - Verify the Default Gateway
• IPv6 Default Gateway Troubleshooting Example
• Step - Verify the Correct Path
• Step - Check the Physical Layer
• Step - Verify ACLs
• Step - Verify DNS
• Packet Tracer - Troubleshoot Enterprise Networks
• Hierarchical Networks
• ITN Practice Packet Tracer
• SRWE Practice (Part 1 & 2)
• ENSA Practice Packet Tracer
• Final Practical Exam (ENSA)
• Packet Tracer - Troubleshoot Enterprise Networks
• Hierarchical Networks
• ITN Practice Packet Tracer
• SRWE Practice (Part 1 & 2)
• ENSA Practice Packet Tracer
• Final Practical Exam (ENSA)
• Final Course Exam
• ENSA Final Packet Tracer
• https://www.netacad.com/courses/ccna-bridging-advanced-topics?courseLang=en-US)

🖥️ Structure and Methodology

• Hands-on labs with real routers and switches
• Cisco Packet Tracer for topology modeling and troubleshooting
• Cisco IOS CLI for administration and security
• Theoretical and practical assessments at the end of each module
• Full-stack networking approach: cabling, physical signaling, and scripting automation

Technology Studies

Category	Details
Cloud & DevOps	AWS (Ka Solutions / AWS Educate), Docker and Kubernetes (4Linux), Observability – Prometheus and Grafana (4Linux), Serverless (Udemy / Alura)
Infrastructure & Systems	Windows Server (Impacta and others), SysAdmin and Python (4Linux), Networking and Fiber Networks (Impacta / Domínio Tecnologia)
Databases	MongoDB, MySQL, Oracle and SQL Server (4Linux)
Development	Java (Impacta), PHP and Web MySQL Front/Backend (4Linux), Angular, ReactJS, jQuery, Quarkus, Python (Udemy / Alura)

📅 Update Frequency

This README is updated approximately once a week. Due to high demand, if I haven’t responded to your message, please resend it.

🎯 Professional Goal

• Cloud Architecture (IaaS) and Software Engineering