Podcast
Questions and Answers
What is the primary function of the Transport Layer in a network?
What is the primary function of the Transport Layer in a network?
- Handles routing of data packets
- Transmits raw data over a physical medium
- Manages the format of data exchanged
- Provides reliable data transfer (correct)
Which layer of a network is primarily responsible for error detection and correction?
Which layer of a network is primarily responsible for error detection and correction?
- Application Layer
- Transport Layer
- Data Link Layer (correct)
- Network Layer
What role does a router play in a network?
What role does a router play in a network?
- Lowers data transfer speeds
- Connects devices on a Local Area Network
- Routes data packets across a network (correct)
- Transmits raw data signals
Which of the following best describes an IP address?
Which of the following best describes an IP address?
Which layer is responsible for user interaction within applications?
Which layer is responsible for user interaction within applications?
What does DNS stand for in a computer network context?
What does DNS stand for in a computer network context?
What percentage of GATE exam questions related to computer networks focus on IP addressing and LAN technologies?
What percentage of GATE exam questions related to computer networks focus on IP addressing and LAN technologies?
Which device operates at the Physical Layer in a network?
Which device operates at the Physical Layer in a network?
Flashcards
What is a computer network?
What is a computer network?
A group of interconnected computing devices like laptops, desktops, servers, smartphones, and IoT devices that communicate with each other.
What is the Network Layer?
What is the Network Layer?
It handles the routing of data packets across the network. Routers operate at this layer.
What is the Application Layer?
What is the Application Layer?
It is responsible for user interaction and running applications.
What is the Transport Layer?
What is the Transport Layer?
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What is an IP address?
What is an IP address?
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What is DNS?
What is DNS?
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What is a LAN?
What is a LAN?
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What is TCP/IP?
What is TCP/IP?
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Study Notes
Introduction to Computer Networks
- A computer network connects devices like laptops, desktops, servers, smartphones, tablets, and IoT devices.
- Devices communicate to form a network.
- A network analogy is sending a letter.
- A network has layers, each with a specific function.
Layers of a Network
- Application Layer: Manages user interaction and applications.
- Presentation Layer: Formats data exchanged between applications.
- Transport Layer: Provides reliable data transfer between applications.
- Network Layer: Handles routing of data packets across the network. Routers operate here.
- Data Link Layer: Manages error detection/correction and access control. Switches and bridges are used.
- Physical Layer: Transmits raw data over physical media (cables, wireless). Hubs function here.
Important Concepts in Network
- IP addresses: Unique numerical addresses for network devices.
- DNS (Domain Name System): Translates domain names (e.g., google.com) into IP addresses.
- LAN (Local Area Network): Connects devices in a limited area (e.g., office, home).
- Gateways, Routers, Hubs, Bridges, and Switches: Network intermediaries connecting devices.
- TCP/IP: Standard protocols for internet communication.
Gate Exam Relevance
- Understanding computer networks is crucial for the GATE exam.
- Roughly 80% of GATE network questions cover IP addressing, LAN technologies, flow/error control, and routing algorithms.
- Approximately 8 marks on average are allocated to network-related questions.
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