Networking Basics
This device connects multiple computers in a network and allows them to communicate with each other.
What is a "router"?
This device connects multiple devices within a local area network (LAN) and operates at Layer 2 of the OSI model.
What is a "switch"?
This protocol is used for sending emails over the internet.
What is "SMTP (Simple Mail Transfer Protocol)"?
This troubleshooting technique involves restarting a device or service to fix networking issues.
What is "rebooting"?
This type of attack floods a network or server with excessive traffic, causing it to become unavailable.
What is a "DDoS (Distributed Denial of Service) attack"?
The unique numerical label assigned to each device connected to a computer network.
What is an "IP address"?
A device that connects different networks together and uses IP addresses to forward data across the internet.
What is a "router"?
It's a protocol that provides a way for files to be transferred between devices on a network.
What is "FTP (File Transfer Protocol)"?
The process of checking network cables, connectors, and physical hardware for faults.
What is "physical inspection"?
A technique that encrypts data traveling between two devices to prevent unauthorized access.
What is "encryption"?
The protocol that assigns IP addresses to devices automatically.
What is "DHCP (Dynamic Host Configuration Protocol)"?
This device provides wireless connectivity to devices in a network.
What is an "access point (AP)"?
A protocol that secures communication over a network, creating a secure "tunnel."
What is "SSL/TLS (Secure Sockets Layer/Transport Layer Security)"?
This troubleshooting command is used to check the connectivity between two devices over a network.
What is "ping"?
This security measure verifies a user's identity before granting access to a network.
What is "authentication"?
The process of sending data in small units over a network to ensure it arrives accurately and in order.
What is "packet switching"?
It's a hardware device that connects multiple computers in a network and allows them to share resources.
What is a "network server"?
A protocol responsible for translating domain names to IP addresses.
What is "DNS (Domain Name System)"?
A tool used to capture and analyze network packets to diagnose and resolve network issues.
What is a "packet sniffer" or "network analyzer"?
A software or hardware-based security system that monitors and controls incoming and outgoing network traffic.
What is a "firewall"?
This layer of the OSI model deals with converting data into formats suitable for transmission over a network.
What is the "presentation layer"?
This device filters and forwards data packets based on MAC addresses in a network.
What is a "bridge"?
This protocol ensures secure communication over a web browser using encryption.
What is "HTTPS (Hypertext Transfer Protocol Secure)"?
This step-by-step process helps identify and solve problems in a systematic way.
What is "troubleshooting methodology"?
This security protocol provides secure remote access to a network.
What is "VPN (Virtual Private Network)"?