Data Communication & Network – OSI Model MCQs

Q.1 How many layers are there in the OSI Model?

• A) 6
• B) 7
• C) 8
• D) 4

Q.2 Router operates in which layer of the OSI reference Model?

• A) Layer 1 (Physical)
• B) Layer 2 (Data Link)
• C) Layer 3 (Network)
• D) Layer 4 (Transport)

Q.3 Bridge works in which layer of the OSI Model?

• A) Layer 1 (Physical)
• B) Layer 2 (Data Link)
• C) Layer 3 (Network)
• D) Layer 4 (Transport)

Q.4 How many layers are in the standard TCP/IP Model?

• A) 4 Layer
• B) 2 Layer
• C) 3 Layer
• D) 7 Layer

Q.5 Which of the following layers of the OSI Model is called the end-to-end layer?

• A) Session Layer
• B) Network Layer
• C) Transport Layer
• D) Data link layer

Q.6 Repeater operates in which layer of the OSI Model?

• A) Physical Layer
• B) Network Layer
• C) Transport Layer
• D) Application Layer

Q.7 MAC Address is an example of which layer's addressing?

• A) Physical Layer
• B) Network Layer
• C) Data link Layer
• D) Application Layer

Q.8 Which of the following are protocols of the Application Layer?

• A) FTP
• B) SMTP
• C) POP3
• D) All of these

Q.9 Which of the following protocols is defined in the Transport Layer?

• A) FTP
• B) SMTP
• C) UDP
• D) All of these

Q.10 Which of the following is NOT an application layer protocol?

• A) FTP
• B) SMTP
• C) UDP
• D) TCP

Q.11 In the OSI model, encryption and decryption are functions of which layer?

• A) Transport Layer
• B) Physical Layer
• C) Application Layer
• D) Presentation Layer

Q.12 In the OSI model, what does ARP stand for?

• A) Address Resolution Protocol
• B) Address Resolution Protect
• C) Address Result Protocol
• D) None

Q.13 In the OSI model, what does RARP stand for?

• A) Reverse Address Resolution Protocol
• B) Review Address Resolution Protect
• C) Router Address Result Protocol
• D) None

Q.14 In the OSI model, what does ICMP stand for?

• A) Internt Control Message Protect
• B) Internt Comunication Message Protocols
• C) Internet Control Message Protocol
• D) None

Q.15 Who developed the standards for the OSI Reference model?

• A) ANSI
• B) IEEE
• C) EBC
• D) ISO

Q.16 What does the acronym ISO stand for in the context of the OSI Model?

• A) International Origin of Standardization
• B) International Organization for Standardization
• C) Internt Organization of Standardization
• D) None

Q.17 The OSI model was officially developed and published in which year?

• A) 1983
• B) 1984
• C) 1985
• D) 1986

Q.18 In an OSI Model, the first (bottom) layer is the?

• A) Session layer
• B) Application Layer
• C) Data link layer
• D) Physical Layer

Q.19 Which layer of the OSI Reference model is primarily responsible for framing and error detection?

• A) Session layer
• B) Application Layer
• C) Data link layer
• D) Physical Layer

Q.20 In the OSI Model, dialogue control and token management are responsibilities of?

• A) Session layer
• B) Application Layer
• C) Data link layer
• D) Physical Layer