NetAd: Midterm

Mock exam for midterm examination in Network Administration subject. Lessons covered from lesson 1 to 4

Network Administration

• The process of managing and maintaining a computer network.

• Ensures seamless communication, security, and efficiency.

• Involves configuring, monitoring, and troubleshooting network infrastructure.

Importance of Network Administration

• Ensures smooth business operations.

• Maintains network security and prevents cyber threats.

• Optimizes performance and reduces downtime.

• Supports connectivity across multiple devices and users.

Servers & Clients

Hosts that provide and request services.

Networking Devices

Routers, switches, firewalls, modems.

Networking Protocols

TCP/IP, DNS, DHCP, HTTP, HTTPS.

IP Addressing

IPv4 vs. IPv6.

Wired & Wireless Connectivity

Ethernet, Wi-Fi, Fiber.

Configuration & Management

Setting up network devices and protocols

Security Implementation

Firewalls, VPNs, and access control.

Network Monitoring & Troubleshooting

Using diagnostic tools.

User Support & Documentation

Assisting users and maintaining records.

TCP/IP

Core internet protocol.

DNS

Resolves domain names.

DHCP

Assigns dynamic IP addresses.

FTP/SFTP

Transfers files securely.

SNMP

Monitors network performance.

ping

Checks connectivity.

tracert/traceroute

Tracks packet route.

ipconfig/ifconfig

Displays IP configurations.

Wireshark

Packet analysis.

Nagios

Network monitoring.

Nmap

Network scanning.

pfSense

Open-source firewall.

Regular Maintenance

Update firmware and software.

Security First

Use encryption and access control.

Monitor Performance

Track traffic and usage.

Proper Documentation

Keep network configurations recorded.

User Training

Educate staff on security best practices.

Windows Server 2019

• Released by Microsoft as part of the Windows Server family.

• Built for enterprises, cloud computing, and hybrid environments.

• Provides security, performance, and management improvements.

Hybrid Cloud Integration

Key Features of Windows Server 2019: Works seamlessly with Azure.

Enhanced Security

Key Features of Windows Server 2019: Includes Shielded VMs, Windows Defender ATP

Improved Hyper-V

Key Features of Windows Server 2019: Better virtualization support and performance.

Windows Admin Center

Key Features of Windows Server 2019: Centralized management for servers.

Storage Enhancements

Key Features of Windows Server 2019: Storage Migration Service, Storage Spaces Direct.

Essentials

Windows Server 2019 Editions: For small businesses, limited to 25 users.

Standard

Windows Server 2019 Editions: Supports limited virtualization.

Datacenter

Windows Server 2019 Editions: Unlimited virtualization, best for data centers.

Hyper-V Server

Windows Server 2019 Editions: A free version for virtualization.

Shielded Virtual Machines

Security Enhancements: for enhanced VM security.

Secure Core Server

Security Enhancements: for hardware-based security protection.

Encrypted Networks

Security Enhancements: for secure data transmission.

Nested Virtualization

Virtualization with Hyper-V: Running VMs inside VMs.

Linux Integration

Virtualization with Hyper-V: Improved compatibility with Linux VMs.

VM Failover Clustering

Virtualization with Hyper-V: Ensuring high availability.

Reduced Downtime

Virtualization with Hyper-V: Live migration and storage migration support.

Windows Admin Center

• Web-based management interface.

• Simplifies server configuration and monitoring.

• Provides integration with Azure for hybrid cloud management.

• Helps with troubleshooting and performance tuning.

Storage Migration Service

Storage & File System Enhancements: Migrate storage with minimal downtime.

Storage Spaces Direct (S2D)

Storage & File System Enhancements: Software-defined storage solution.

ReFS (Resilient File System)

Storage & File System Enhancements: Improves file integrity and performance.

Deduplication & Compression

Storage & File System Enhancements: Efficient use of disk space.

Software-Defined Networking (SDN)

Networking Improvements: Network virtualization.

Encrypted Subnetworks

Networking Improvements: Secure communication between servers.

Performance Enhancements

Networking Improvements: Reduced network latency.

Hybrid Cloud Connectivity

Networking Improvements: Better integration with Azure networking.

On-Premises Data Centers

Use Cases & Deployment Scenarios: Manage internal IT infrastructure.

Hybrid Cloud Solutions

Use Cases & Deployment Scenarios: Extend workloads to Azure.

Virtualization & Containers

Use Cases & Deployment Scenarios: Running Hyper-V and Docker containers.

File & Storage Services

Use Cases & Deployment Scenarios: Centralized file sharing and backup solutions.

Windows PowerShell

• Command-line shell and scripting language for automation.

• Used for server management, configuration, and automation.

• Replaces many GUI-based administrative tasks.

• Works with cmdlets, scripts, and pipelines.

Get-Service

Common PowerShell Commands for Server Management: Lists all services on the server.

Restart-Service -Name Spooler

Common PowerShell Commands for Server Management: Restarts a specific service.

Get-Process

Common PowerShell Commands for Server Management: Shows currently running processes.

Test-NetConnection

Common PowerShell Commands for Server Management: Checks network connectivity.

Get-EventLog -LogName System

Common PowerShell Commands for Server Management: Retrieves system logs.

Remote Monitoring and Management (RMM) tools

are essential for IT professionals and Managed Service Providers (MSPs) to efficiently manage and monitor IT infrastructure remotely.

RMM

is a type of software that allows IT professionals to remotely monitor and manage a company's IT infrastructure. This includes visibility into all endpoints, such as user computers, mobile devices, and servers

Remote Monitoring

Purpose: Continuously monitor the health and performance of IT systems.

Capabilities: Track metrics like CPU usage, memory usage, disk space, and network traffic. Receive real-time alerts for any issues

Remote Management

Purpose: Manage IT systems and perform administrative tasks remotely.

Capabilities: Install software updates, apply patches, and perform system maintenance without physical access

Endpoint Management

Purpose: Manage all devices connected to the network.

Capabilities: Deploy software, manage configurations, and enforce security policies across all endpoints

Reporting and Analytics

Purpose: Provide insights into IT performance and health.

Capabilities: Generate detailed reports on system performance, security incidents, and compliance

Reporting and Analytics

Purpose: Provide insights into IT performance and health.

Capabilities: Generate detailed reports on system performance, security incidents, and compliance

Proactive Maintenance

Benefits of Using RMM Tools: RMM tools allow IT teams to identify and address issues before they become critical, reducing downtime and improving system reliability

Increased Efficiency

Benefits of Using RMM Tools: Automation of routine tasks frees up IT staff to focus on more strategic initiatives, improving overall productivity

Enhanced Security

Benefits of Using RMM Tools: Continuous monitoring and timely updates help protect systems from vulnerabilities and cyber threats

Scalability

Benefits of Using RMM Tools: RMM tools can manage a large number of devices and systems, making them suitable for businesses of all size

Remote Management

In Windows Server, you can use Server Manager to perform management tasks on remote servers. BLANK is enabled by default on servers that are running Windows Server 2019. To manage a server remotely by using Server Manager, you add the server to the Server Manager server pool.

Remote Desktop Management (RDM)

With BLANK, you can connect to Remote Desktop Services from Windows Server and remote PCs, and use and control desktops and apps that your admin has made available to you. There are clients available for many different types of devices on different platforms and form factors, such as desktops and laptops, tablets, smartphones, and through a web browser

Remote Desktop Management (RDM)

• Purpose: Allows direct access and control of a single remote computer as if you were physically present.

• Capabilities: Provides screen sharing, file transfer, and remote troubleshooting.

• Tools: Examples include Microsoft Remote Desktop, TeamViewer, and AnyDesk.

• Use Cases: Useful for providing remote support, accessing work computers from home, or managing servers without physical access

Remote Access

RDM – Key Features:

Purpose: Access and control a remote computer from anywhere.

Capabilities: View the remote desktop, use the keyboard and mouse, and run applications as if you were sitting in front of the remote machine.

File Transfer

RDM – Key Features:

Purpose: Transfer files between the local and remote computers.

Capabilities: Easily copy and move files to and from the remote machine.

Security

RDM – Key Features:

Purpose: Ensure secure remote connections.

Capabilities: Use encryption, multi-factor authentication, and secure credential storage to protect remote sessions.

Cross-Platform Support

RDM – Key Features:

Purpose: Access remote desktops from various devices and operating systems.

Capabilities: Use Remote Desktop apps available for Windows, macOS, iOS, and Android.

Multi-Session Management

RDM – Key Features:

Purpose: Manage multiple remote sessions simultaneously.

Capabilities: Connect to multiple remote desktops, switch between sessions, and organize them into groups for easier management.

Resource Monitor

• BLANK is a great tool to identify which program/service is using resources like program, applications, network connection and memory usages.

• You can use BLANK to capture data, such as processor or memory usage, while running a test schedule or to monitor the availability of hosts and services. Resource Monitoring can provide a comprehensive view of a system under test, to help determining problems.

Comprehensive Coverage

Resource Monitoring – Best Practice:

Purpose: Monitor all critical aspects of your server.

Components: Include CPU, memory, disk space, bandwidth, and application performance

Real-time Monitoring

Resource Monitoring – Best Practice:

Purpose: Detect and resolve issues immediately.

Tools: Use real-time monitoring tools to get instant alerts on any anomalies.

Set Clear Thresholds

Resource Monitoring – Best Practice:

Purpose: Define acceptable performance levels.

Action: Set thresholds for key metrics like CPU usage, memory usage, and disk I/O. Configure alerts to notify you when these thresholds are breached.

Regularly Review and Update

Resource Monitoring – Best Practice:

Purpose: Ensure monitoring rules and tools remain effective.

Action: Periodically review and update your monitoring configurations to adapt to changes in your infrastructure.

Automate Where Possible

Resource Monitoring – Best Practice:

Purpose: Improve efficiency and reduce manual intervention.

Tools: Use automation tools to schedule routine tasks like backups, updates, and system scans.

Ensure Security Monitoring

Resource Monitoring – Best Practice:

Purpose: Protect against security threats.

Components: Monitor for unusual activity, unauthorized access attempts, and potential vulnerabilities.

Maintain Historical Data

Resource Monitoring – Best Practice:

Purpose: Analyze trends and identify recurring issues.

Action: Keep historical data to track performance over time and make informed decisions.

Regular Testing

Resource Monitoring – Best Practice:

Purpose: Validate the effectiveness of your monitoring setup.

Action: Conduct regular tests to ensure your monitoring tools and alerts are functioning correctly

Monitor Physical Status

Resource Monitoring – Best Practice:

Purpose: Ensure the physical health of on-site servers.

Components: Monitor power supply and temperature to prevent hardware failures.

Use Visualization Tools

Resource Monitoring – Best Practice:

Purpose: Simplify data interpretation.

Tools: Use dashboards and visualization tools like Grafana to present monitoring data in an easily understandable format.

Windows Firewall

BLANK with Advanced Security is an important part of a layered security model. By providing host-based, two-way network traffic filtering for a computer, BLANK with Advanced Security blocks unauthorized network traffic flowing into or out of the local computer

Traffic Filtering

Key Features Windows Firewall:

Purpose: Filters incoming and outgoing network traffic based on predefined rules.

Capabilities: Allows or blocks traffic based on criteria such as IP addresses, ports, and protocols.

Network Profiles

Key Features Windows Firewall:

Purpose: Applies different security settings based on the type of network (Domain, Private, Public).

Capabilities: Ensures appropriate security measures are in place depending on whether you're connected to a trusted home network or a public Wi-Fi.

Integration with IPsec

Key Features Windows Firewall:

Purpose: Enhances security by requiring authentication and encryption for network communications.

Capabilities: Ensures that only trusted devices can communicate with your system and that data is protected from eavesdropping.

Advanced Security Settings

Key Features Windows Firewall:

Purpose: Provides granular control over firewall rules and settings.

Capabilities: Allows administrators to create custom rules for specific applications, services, and ports

Directory

is a hierarchical structure that stores information about objects on the network.