CompTIA Network+ Certification Exam OSI Layers Practice Test

Computer network: is a set of devices connected through links. A node can be a computer, printer, or any other device capable of sending or receiving the data.

OSIstands for Open System Interconnection is a reference model that describes how information from a software application in one computer moves through a physical medium to the software application in another computer.

OSI consists of Seven Layers, and each layer performs a particular network function.

Characteristics of OSI Model:

The OSI model is divided into two layers: upper layers and lower layers.

Functions of the OSI Layers

There are seven OSI layers. Each layer has different functions. A list of seven layers are given below:

1. Physical Layer

2. Data-Link Layer

3. Network Layer

4. Transport Layer

5. Session Layer

6. Presentation Layer

7. Application Layer

Physical layer: The main functionality of the physical layer is to transmit the individual bits from one node to another node. It is the lowest layer of the OSI model.

Functions of a Physical layer:Line Configuration, Data Transmission, Topology, Signals.

Functions of the Data-link layer:Physical Addressing, Flow Control, Error Control, Access Control.

Functions of Network Layer: Internetworking, Addressing, Routing, Packetizing.

Functions of Transport Layer:Service-point addressing, Segmentation, and reassembly, Connection Control, Flow control error control.

Functions of Session layer: Dialog control, Synchronization

Functions of Presentation layer:Translation, Encryption, Compression:

Functions of Application layer:File transfer, access, and management (FTAM), Mail services

WHAT’S COVERED?

In these practice tests, we’ve included all very important questions of 7 layers OSI model in computer Networks:

• Physical Layer

• Data-Link Layer

• Network Layer

• Transport Layer

• Session Layer

• Presentation Layer

• Application Layer

✡What Makes This Course Special✡

✔ 3 FULL practice tests, 90 questions total

✔ Fast & Friendly Support in the Q&A section.

✔30 days money-back guarantee. Without any queries.

✔ Lifetime Access to course updates.

✔Lifetime support.

COURSE DETAILS:

CompTIA Network+ Certification Exam OSI Layers Practice Test: Practice Tests for all Exams. It is divided into three Tests.

↪ 7 layers OSI Model Practice Test- Set1

30 questions | 15 minutes | 70% correct required to pass | Multiple-Choice Questions

↪ 7 layers  OSI Model Practice Test- Set2

30 questions | 15 minutes | 70% correct required to pass | Multiple-Choice Questions

↪ 7 layers OSI Model Practice Test- Set3

21 questions | 10 minutes | 70% correct required to pass | Multiple-Choice Questions

✡WHAT MAKES THIS COURSE SPECIAL✡

✔ Fast & Friendly Support in the Q&A section.

✔30 days money-back guarantee. Without any queries.

✔ Lifetime Access to course updates.

✔Lifetime support.

Key features of practice sections and model test:

➠You can pause the test at any time and resume later.

➠You can retake the test as many times as you would like.

➠The progress bar at the top of the screen will show your progress as well as the time remaining in the test. If you run out of time, don’t worry; you will still be able to finish the test.

➠You can skip a question to come back to at the end of the exam.

➠You can also use “Mark for Review” to come back to questions you are unsure about before you submit your test.

➠If you want to finish the test and see your results immediately, press the stop button.

!!!Best of luck!!!✍

Note:These questions are only for practice and understanding level of knowledge. It is not necessary that these questions may or may not appear for examinations and/or interview questions, but you will get Examsfrom these questions for sure.

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