Podcast
Questions and Answers
Which organization developed the OSI model?
Which organization developed the OSI model?
- Open Systems Interconnection
- Domain Name System
- International Organization For Standardization (correct)
- Internet Assigned Numbers Authority
What is the length of an IPv4 address?
What is the length of an IPv4 address?
- 256 bits
- 32 bits (correct)
- 128 bits
- 64 bits
What is the purpose of a DNS server?
What is the purpose of a DNS server?
- Translate web addresses into IP addresses (correct)
- Assign unique identifiers to devices
- Layout arrangement of devices in a network
- Specify standards for communication protocols
What is a MAC address?
What is a MAC address?
Which protocol is used to convert an IP address to its corresponding physical address?
Which protocol is used to convert an IP address to its corresponding physical address?
Which protocol provides the IP address of a device given a physical address as input?
Which protocol provides the IP address of a device given a physical address as input?
Which protocol has become obsolete since the time DHCP has come into the picture?
Which protocol has become obsolete since the time DHCP has come into the picture?
Which course covers the basics of networking concepts for complete beginners?
Which course covers the basics of networking concepts for complete beginners?
Which of the following is true about computer networks?
Which of the following is true about computer networks?
What is the difference between a LAN and a WAN?
What is the difference between a LAN and a WAN?
What enables communication and data exchange between connected computers?
What enables communication and data exchange between connected computers?
Which of the following is a type of network device?
Which of the following is a type of network device?
What is the purpose of a network topology?
What is the purpose of a network topology?
Which layer of the OSI model is responsible for specifying standards for communications protocols?
Which layer of the OSI model is responsible for specifying standards for communications protocols?
Which protocol is used to identify the IP address of a domain?
Which protocol is used to identify the IP address of a domain?
What is the purpose of a MAC address?
What is the purpose of a MAC address?
How many ports are available in a computer system?
How many ports are available in a computer system?
What is a socket in networking?
What is a socket in networking?
What is the purpose of a DNS server?
What is the purpose of a DNS server?
Which organization developed the OSI model?
Which organization developed the OSI model?
What is the length of an IPv4 address?
What is the length of an IPv4 address?
Which protocol is used to convert an IP address to its corresponding physical address?
Which protocol is used to convert an IP address to its corresponding physical address?
What is the role of a router in a network?
What is the role of a router in a network?
What additional features can a router have?
What additional features can a router have?
Which protocol has become obsolete since the time DHCP has come into the picture?
Which protocol has become obsolete since the time DHCP has come into the picture?
What is the purpose of a router in a network?
What is the purpose of a router in a network?
What is the function of ARP?
What is the function of ARP?
Which course covers the basics of networking concepts for complete beginners?
Which course covers the basics of networking concepts for complete beginners?
What is the main function of a router?
What is the main function of a router?
What is the purpose of RARP?
What is the purpose of RARP?
What is the role of a router in a network?
What is the role of a router in a network?
Which of the following is true about computer networks?
Which of the following is true about computer networks?
What is a LAN?
What is a LAN?
What is a WAN?
What is a WAN?
What is the largest example of a WAN?
What is the largest example of a WAN?
What is computer networking?
What is computer networking?
What are the building blocks of a computer network?
What are the building blocks of a computer network?
What defines a computer network?
What defines a computer network?
What is the purpose of a computer network?
What is the purpose of a computer network?
What is the internet?
What is the internet?
What enables communication for every business, entertainment, and research purpose?
What enables communication for every business, entertainment, and research purpose?
Study Notes
Networking Fundamentals
- The OSI model was developed by the International Organization for Standardization (ISO).
- An IPv4 address is 32 bits long, which is equivalent to 4 bytes or 12 digits.
Network Addressing
- A DNS (Domain Name System) server is used to resolve domain names to their corresponding IP addresses.
- A MAC (Media Access Control) address is a unique identifier assigned to a network interface controller (NIC) for a computer.
- ARP (Address Resolution Protocol) is used to convert an IP address to its corresponding physical address.
- RARP (Reverse Address Resolution Protocol) is used to obtain the IP address of a device given a physical address as input.
- DHCP (Dynamic Host Configuration Protocol) has replaced BOOTP (Bootstrap Protocol) which has become obsolete.
Computer Networks
- The "Networking Essentials" course covers the basics of networking concepts for complete beginners.
- Computer networks are a collection of interconnected devices that communicate with each other to share resources.
- A LAN (Local Area Network) is a computer network that spans a small geographic area, typically within a building or campus.
- A WAN (Wide Area Network) is a computer network that covers a larger geographic area, such as a city or country.
- The largest example of a WAN is the internet.
Network Devices
- A router is a network device that connects multiple networks together and routes traffic between them.
- A router's main function is to direct traffic between networks.
- Additional features of a router may include firewall capabilities, network address translation (NAT), and quality of service (QoS) management.
Network Communication
- Communication and data exchange between connected computers are enabled through the network.
- A network topology is the physical and logical arrangement of devices and connections within a network.
- The OSI model's seventh layer (Application Layer) is responsible for specifying standards for communications protocols.
Network Ports and Sockets
- A computer system has 65535 available ports.
- A socket is a endpoint for communication between two devices (computer, phone, etc) in a network.
- DNS servers are used to identify the IP address of a domain.
Network Purpose
- The purpose of a computer network is to enable communication, data exchange, and resource sharing between connected devices.
- The internet is a global system of interconnected computer networks that enables communication, information sharing, and connectivity for various purposes.
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Description
Test your knowledge of networking fundamentals with this quiz from IBM. Learn about computer networks, hardware and software components, and data transmission.
