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Questions and Answers
Which protocol is commonly blocked at firewalls?
Which protocol is commonly blocked at firewalls?
Which protocol resolves MAC addresses for IPv4?
Which protocol resolves MAC addresses for IPv4?
Which protocol is used for transferring files over a network and is commonly blocked at firewalls?
Which protocol is used for transferring files over a network and is commonly blocked at firewalls?
Which protocol is used for email and web usage, and also for secure communication over the web?
Which protocol is used for email and web usage, and also for secure communication over the web?
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Which protocol is used for remote access and commonly operates on port 22?
Which protocol is used for remote access and commonly operates on port 22?
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Study Notes
Network Protocols and Security
- HTTP (Hypertext Transfer Protocol) is commonly blocked at firewalls to prevent unauthorized access to web servers and mitigate security risks.
- ARP (Address Resolution Protocol) resolves MAC (Media Access Control) addresses for IPv4, allowing devices to find each other's physical addresses on a local network.
- FTP (File Transfer Protocol) is used for transferring files over a network and is often blocked at firewalls due to its known security vulnerabilities and potential for unauthorized data transfer.
- HTTPS (Hypertext Transfer Protocol Secure) is utilized for secure communication over the web, combining HTTP with SSL/TLS encryption; it is commonly used for email services and other web applications.
- SSH (Secure Shell) is used for secure remote access and commonly operates on port 22, providing an encrypted channel for secure login and data transfer over unsecured networks.
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Description
Test your knowledge of basic networking concepts, protocols, and network devices with this CompTIA Security+ introduction quiz. Explore network technologies and tools, routing and switching use cases, and basic connectivity protocols such as TCP and UDP. This quiz is designed to help you review and understand fundamental networking principles.
