FREE CompTIA Network+ Networking Fundamentals Questions and Answers
What is the purpose of the OSI model?
The OSI (Open Systems Interconnection) model is a conceptual framework used to understand and standardize how different networking protocols interact. It organizes communication into seven layers, ensuring interoperability between diverse systems and technologies.
Which of the following is a valid IPv4 address?
IPv4 addresses consist of four octets, each ranging from 0 to 255. Address "10.0.0.1" is valid, whereas the others exceed the allowed range for octets.
Which protocol is used for secure web communication?
HTTPS (Hypertext Transfer Protocol Secure) encrypts data using TLS/SSL, ensuring secure communication over the web. HTTP does not provide encryption, while FTP and SMTP are used for file transfer and email, respectively.
What is the primary function of a subnet mask?
A subnet mask divides an IP address into its network and host parts, helping devices determine whether a destination is on the same subnet or requires routing to another network.
What type of topology connects all devices to a single central device, such as a switch?
In a star topology, all devices are connected to a central device like a switch or hub. This setup is common in modern networks due to its ease of troubleshooting and scalability.
