Corporate & IT Interview Preparation

Networking

Aptitude · Reasoning · English · CS — Corporate & Campus Interview Prep

26 Questions 10 Topics Take Test

Showing 21–26 of 26 questions

Q.21 Easy OSI Model

During a network analysis, packets are captured showing source and destination IP addresses. At which OSI layer were these addresses added to the data?

A Layer 2 - Data Link Layer

B Layer 3 - Network Layer

C Layer 4 - Transport Layer

D Layer 6 - Presentation Layer

Correct Answer: B. Layer 3 - Network Layer

Explanation:

IP addresses (source and destination) are added at the Network Layer (Layer 3). This happens when the Network Layer encapsulates transport layer segments into IP packets.

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Q.22 Easy OSI Model

Which OSI layer is responsible for converting data into signals suitable for transmission over physical media?

A Physical Layer

B Data Link Layer

C Network Layer

D Transport Layer

Correct Answer: A. Physical Layer

Explanation:

The Physical Layer (Layer 1) deals with the transmission of raw bits over physical media like copper wires, fiber optics, or radio waves.

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Q.23 Easy OSI Model

What is the primary function of the Session Layer in the OSI model?

A Managing dialogues between applications

B Routing packets across networks

C Encrypting data for security

D Converting data formats

Correct Answer: A. Managing dialogues between applications

Explanation:

The Session Layer (Layer 5) establishes, maintains, and terminates connections between applications, managing the conversation flow.

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Q.24 Easy OSI Model

Which of the following devices operates at Layer 2 of the OSI model?

A Router

B Switch

C Hub

D Modem

Correct Answer: B. Switch

Explanation:

A switch operates at the Data Link Layer (Layer 2) using MAC addresses to forward frames within the same network segment.

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Q.25 Easy OSI Model

A network packet is traveling through the internet. At which OSI layer would the packet's source and destination IP addresses be read?

A Data Link Layer

B Transport Layer

C Network Layer

D Physical Layer

Correct Answer: C. Network Layer

Explanation:

The Network Layer (Layer 3) uses IP addresses to route packets across different networks.

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Q.26 Easy OSI Model

In the OSI model, which layer is responsible for converting digital data into electrical signals for transmission over physical media?

A Physical Layer (Layer 1)

B Data Link Layer (Layer 2)

C Network Layer (Layer 3)

D Transport Layer (Layer 4)

Correct Answer: A. Physical Layer (Layer 1)

Explanation:

The Physical Layer (Layer 1) handles the conversion of data into physical signals (electrical, optical, or radio waves) and manages the hardware transmission of bits over the network medium.

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