CompTIA Network+ · N10-009
Objective 1.1: Explain concepts related to the Open Systems Interconnection (OSI) reference model
Practice questions for Network+ objective 1.1, “Explain concepts related to the Open Systems Interconnection (OSI) reference model.” Every question is original, written to the N10-009 exam objectives, and comes with a full explanation — answer them below to see instant grading.
This objective sits in Domain 1.0: Networking Concepts, which is about 23% of the exam — so mastering it moves your readiness score meaningfully.
1.Which OSI layer is responsible for decapsulation on the receiving host, stripping the Layer 2 frame header?
2.Which OSI layer is responsible for end-to-end communication, error recovery, and flow control?
3.A network technician is analyzing a packet capture and sees data being converted from EBCDIC to ASCII. Which OSI layer is performing this function?
4.A network hub (repeater) operates at which OSI layer?
5.In the OSI model, which layer adds a source and destination IP address to data during encapsulation?
Practice every objective, adaptively
CertBench tracks your score on 1.1 and every other objective, then builds a daily plan that targets your weakest spots. Start with the free diagnostic.
Take the free diagnostic