TestOut LabSim A+ Certification Practice Exam

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Which protocol is non-routable and requires another protocol for internetwork communications?

HTTPS
NetBIOS
TCP/IP
FTP

The correct answer is: NetBIOS

The correct choice is NetBIOS because it is designed primarily for local area networks (LANs) and does not possess the capability to route data across different networks. NetBIOS provides services such as name resolution and session management but relies on other protocols like TCP/IP for communication beyond the local network. This means that while NetBIOS can function on a local layer, it needs a routable protocol, such as TCP/IP, to enable communication between different networks, which is a key characteristic of non-routable protocols. The other options listed are all routable protocols or services that can operate over the broader Internet or across various networks. HTTPS is a secure version of HTTP for web traffic, TCP/IP is a fundamental suite of communication protocols that supports routing and is essential for Internet functionality, and FTP is a protocol used for transferring files over a network, all of which can handle communication beyond a single network segment.