Podcast
Questions and Answers
True or false: Network Operating Systems control the communication with resources and the flow of data across the network?
True or false: Network Operating Systems control the communication with resources and the flow of data across the network?
True (A)
True or false: NOS runs on the workstation?
True or false: NOS runs on the workstation?
False (B)
True or false: Linux, Windows Server, and macOS Server are examples of popular NOSs?
True or false: Linux, Windows Server, and macOS Server are examples of popular NOSs?
True (A)
True or false: There are generally three resource access models: peer-to-peer, client-server, and hybrid?
True or false: There are generally three resource access models: peer-to-peer, client-server, and hybrid?
True or false: The size of the organization is an important factor in deciding the resource access model?
True or false: The size of the organization is an important factor in deciding the resource access model?
True or false: Additional training is never needed when implementing new network resources?
True or false: Additional training is never needed when implementing new network resources?
The Data Link layer is divided into two sections: MAC and LLC.
The Data Link layer is divided into two sections: MAC and LLC.
The Physical layer defines how data is transmitted over a communication medium.
The Physical layer defines how data is transmitted over a communication medium.
The IEEE 802 standards were designed primarily for enhancements to the top three layers of the OSI model.
The IEEE 802 standards were designed primarily for enhancements to the top three layers of the OSI model.
The Logical Link Control sublayer manages data link communications.
The Logical Link Control sublayer manages data link communications.
CSMA/CD stands for Carrier Sense Multiple Access with Collision Detection.
CSMA/CD stands for Carrier Sense Multiple Access with Collision Detection.
CSMA/CA is a contention-based access method used in wired Ethernet networks.
CSMA/CA is a contention-based access method used in wired Ethernet networks.
True or false: The Bus topology is the most expensive network topology.
True or false: The Bus topology is the most expensive network topology.
True or false: The Star topology is the easiest to reconfigure.
True or false: The Star topology is the easiest to reconfigure.
True or false: The Ring topology has the best fault tolerance.
True or false: The Ring topology has the best fault tolerance.
True or false: The Mesh topology is rarely found in wired LANs.
True or false: The Mesh topology is rarely found in wired LANs.
True or false: The Hybrid topology is more complex than the Mesh topology.
True or false: The Hybrid topology is more complex than the Mesh topology.
True or false: The physical design of the Mesh topology is cheap to install and maintain.
True or false: The physical design of the Mesh topology is cheap to install and maintain.
True or false: Peer-to-peer networks are suitable for small, simple, and inexpensive networks.
True or false: Peer-to-peer networks are suitable for small, simple, and inexpensive networks.
True or false: Peer-to-peer networks are also referred to as workgroups.
True or false: Peer-to-peer networks are also referred to as workgroups.
True or false: Centralized administration and control are lacking in peer-to-peer networks, making network management difficult and security weak.
True or false: Centralized administration and control are lacking in peer-to-peer networks, making network management difficult and security weak.
True or false: Peer-to-peer networks are not recommended for small companies expecting future growth.
True or false: Peer-to-peer networks are not recommended for small companies expecting future growth.
True or false: Client-server networks are better for large networks that require a secure environment and centralized control.
True or false: Client-server networks are better for large networks that require a secure environment and centralized control.
True or false: Server-based networks offer better security than peer-to-peer networks.
True or false: Server-based networks offer better security than peer-to-peer networks.
True or false: The mesh topology becomes inefficient with five or more entities due to the high number of connections required.
True or false: The mesh topology becomes inefficient with five or more entities due to the high number of connections required.
True or false: The hybrid topology is a mix of other topologies and is commonly seen in modern networks.
True or false: The hybrid topology is a mix of other topologies and is commonly seen in modern networks.
True or false: Networks need a common language called a protocol for computers to communicate with each other.
True or false: Networks need a common language called a protocol for computers to communicate with each other.
True or false: The OSI model was published by the ISO in 1984 to describe network protocols.
True or false: The OSI model was published by the ISO in 1984 to describe network protocols.
True or false: The OSI model consists of seven layers, each adding information to the data being transmitted.
True or false: The OSI model consists of seven layers, each adding information to the data being transmitted.
True or false: The higher layers of the OSI model pass data through the lower layers, adding headers and trailers.
True or false: The higher layers of the OSI model pass data through the lower layers, adding headers and trailers.
Why does the mesh topology become inefficient with five or more entities?
Why does the mesh topology become inefficient with five or more entities?
What is the hybrid topology?
What is the hybrid topology?
What is the purpose of a protocol in networks?
What is the purpose of a protocol in networks?
When was the OSI model published and what was its purpose?
When was the OSI model published and what was its purpose?
How many layers does the OSI model consist of?
How many layers does the OSI model consist of?
What do the higher layers of the OSI model do?
What do the higher layers of the OSI model do?
What are the advantages and disadvantages of the Bus topology?
What are the advantages and disadvantages of the Bus topology?
What are the advantages and disadvantages of the Star topology?
What are the advantages and disadvantages of the Star topology?
What are the advantages and disadvantages of the Ring topology?
What are the advantages and disadvantages of the Ring topology?
What are the advantages and disadvantages of the Mesh topology?
What are the advantages and disadvantages of the Mesh topology?
What are the advantages and disadvantages of the Hybrid topology?
What are the advantages and disadvantages of the Hybrid topology?
What is the physical design of the Mesh topology like?
What is the physical design of the Mesh topology like?
What are the advantages and disadvantages of peer-to-peer networks?
What are the advantages and disadvantages of peer-to-peer networks?
What are the advantages and disadvantages of client-server networks?
What are the advantages and disadvantages of client-server networks?
What is the difference between peer-to-peer networks and client-server networks?
What is the difference between peer-to-peer networks and client-server networks?
Which network design is better for growing companies, large environments, and centralized security needs?
Which network design is better for growing companies, large environments, and centralized security needs?
What is the alternative name for peer-to-peer networks?
What is the alternative name for peer-to-peer networks?
What is the alternative name for client-server networks?
What is the alternative name for client-server networks?
What is the purpose of a network operating system (NOS) in a network?
What is the purpose of a network operating system (NOS) in a network?
What are the two resource access models commonly used in networks?
What are the two resource access models commonly used in networks?
What factors should be considered when deciding which resource access model is needed?
What factors should be considered when deciding which resource access model is needed?
What are some examples of popular network operating systems (NOSs)?
What are some examples of popular network operating systems (NOSs)?
What are the main components of a typical network?
What are the main components of a typical network?
Why is it important to choose the appropriate resource access model for a network?
Why is it important to choose the appropriate resource access model for a network?
What is the purpose of the Data Link layer in the OSI model?
What is the purpose of the Data Link layer in the OSI model?
What are the two sublayers of the Data Link layer in the IEEE 802 standard?
What are the two sublayers of the Data Link layer in the IEEE 802 standard?
What is the role of the Media Access Control (MAC) sublayer?
What is the role of the Media Access Control (MAC) sublayer?
What is CSMA/CD and how does it work?
What is CSMA/CD and how does it work?
What is the difference between CSMA/CD and CSMA/CA?
What is the difference between CSMA/CD and CSMA/CA?
Which IEEE 802 standard is commonly associated with wireless networking?
Which IEEE 802 standard is commonly associated with wireless networking?
Networks use a ______ operating system (NOS) to control the communication with resources and the flow of data across the network.
Networks use a ______ operating system (NOS) to control the communication with resources and the flow of data across the network.
Some of the more popular NOSs are ______, Microsoft’s Windows Server series (Server 2019, Server 2016, and so on), and macOS Server.
Some of the more popular NOSs are ______, Microsoft’s Windows Server series (Server 2019, Server 2016, and so on), and macOS Server.
There are generally two resource access models: ______ and client-server.
There are generally two resource access models: ______ and client-server.
It is important to choose the appropriate ______ model.
It is important to choose the appropriate ______ model.
How do you decide which type of ______ model is needed.
How do you decide which type of ______ model is needed.
You must first think about the following questions: What is the size of the ______.
You must first think about the following questions: What is the size of the ______.
True or false: The application layer allows ______ to network services.
True or false: The application layer allows ______ to network services.
The transport layer controls the data flow and ______ any transmission problems.
The transport layer controls the data flow and ______ any transmission problems.
The data link layer arranges data into ______ and includes control information and the MAC address for each NIC.
The data link layer arranges data into ______ and includes control information and the MAC address for each NIC.
The mesh topology becomes inefficient with five or more entities due to the high number of ______ required.
The mesh topology becomes inefficient with five or more entities due to the high number of ______ required.
Networks need a common language called a ______ for computers to communicate with each other.
Networks need a common language called a ______ for computers to communicate with each other.
The OSI model consists of seven ______, each adding information to the data being transmitted.
The OSI model consists of seven ______, each adding information to the data being transmitted.
Peer-to-peer networks are suitable for ______, simple, and inexpensive networks.
Peer-to-peer networks are suitable for ______, simple, and inexpensive networks.
Each computer in a peer-to-peer network acts as both a service provider and a ______.
Each computer in a peer-to-peer network acts as both a service provider and a ______.
Centralized administration and control are lacking in peer-to-peer networks, making network management difficult and ______ weak.
Centralized administration and control are lacking in peer-to-peer networks, making network management difficult and ______ weak.
Peer-to-peer networks are not recommended for small companies expecting ______ growth.
Peer-to-peer networks are not recommended for small companies expecting ______ growth.
Client-server networks are better for ______ networks that require a secure environment and centralized control.
Client-server networks are better for ______ networks that require a secure environment and centralized control.
Server-based networks use dedicated, centralized servers for administrative functions and ______ sharing.
Server-based networks use dedicated, centralized servers for administrative functions and ______ sharing.
True or false: The Bus topology is _____ and easy to install, but difficult to reconfigure and a break in the bus disables the entire network.
True or false: The Bus topology is _____ and easy to install, but difficult to reconfigure and a break in the bus disables the entire network.
True or false: The _______ topology is cheap, easy to install and reconfigure, and more resilient to a single cable failure, but more expensive than Bus topology.
True or false: The _______ topology is cheap, easy to install and reconfigure, and more resilient to a single cable failure, but more expensive than Bus topology.
True or false: The Ring topology is efficient and easy to install, but reconfiguration is difficult and it is very ________.
True or false: The Ring topology is efficient and easy to install, but reconfiguration is difficult and it is very ________.
True or false: The Mesh topology has the best fault tolerance, but reconfiguration is extremely difficult, expensive, and ________.
True or false: The Mesh topology has the best fault tolerance, but reconfiguration is extremely difficult, expensive, and ________.
True or false: The _______ topology combines the best features of each topology used, but it is complex (less so than Mesh).
True or false: The _______ topology combines the best features of each topology used, but it is complex (less so than Mesh).
Bus topology consists of a single cable that runs to every workstation, each computer shares the same data and address path, and it is the _______ to install.
Bus topology consists of a single cable that runs to every workstation, each computer shares the same data and address path, and it is the _______ to install.
The Data Link layer is subdivided into two sections: ______ and Logical Link Control (LLC).
The Data Link layer is subdivided into two sections: ______ and Logical Link Control (LLC).
The Physical layer describes how the data gets transmitted over a communication ______.
The Physical layer describes how the data gets transmitted over a communication ______.
The IEEE 802 standards were designed primarily for enhancements to the ______ three layers of the OSI model.
The IEEE 802 standards were designed primarily for enhancements to the ______ three layers of the OSI model.
The IEEE 802 standard breaks the Data Link layer into two sublayers: a Logical Link Control (LLC) sublayer and a ______ sublayer.
The IEEE 802 standard breaks the Data Link layer into two sublayers: a Logical Link Control (LLC) sublayer and a ______ sublayer.
The original 802.3 CSMA/CD standard defines a ______ topology network that uses a 50-ohm coaxial baseband cable and carries transmissions at 10 Mbps.
The original 802.3 CSMA/CD standard defines a ______ topology network that uses a 50-ohm coaxial baseband cable and carries transmissions at 10 Mbps.
CSMA/CD stands for Carrier Sense Multiple Access with ______ Detection.
CSMA/CD stands for Carrier Sense Multiple Access with ______ Detection.
Study Notes
Understanding Network Topologies and the OSI Model
- The mesh topology becomes inefficient with five or more entities due to the high number of connections required.
- The hybrid topology is a mix of other topologies and is commonly seen in modern networks.
- Networks need a common language called a protocol for computers to communicate with each other.
- The OSI model was published by the ISO in 1984 to describe network protocols.
- The OSI model consists of seven layers, each adding information to the data being transmitted.
- The higher layers of the OSI model pass data through the lower layers, adding headers and trailers.
- The bottom layer sends the information out on the wire or wirelessly.
- At the receiving end, the bottom layer removes the header and passes the data to the next highest layer.
- The OSI model layers include the application layer, presentation layer, session layer, transport layer, network layer, and data link layer.
- The application layer allows access to network services.
- The transport layer controls the data flow and troubleshoots any transmission problems.
- The data link layer arranges data into frames and includes control information and the MAC address for each NIC.
Choosing the Right Network Design: Peer-to-Peer vs. Client-Server
- A well-planned network design is crucial for effective and efficient implementation.
- The type of resource model chosen depends on the network's requirements.
- Peer-to-peer networks are suitable for small, simple, and inexpensive networks.
- Peer-to-peer networks are also referred to as workgroups.
- Each computer in a peer-to-peer network acts as both a service provider and a service requestor.
- Centralized administration and control are lacking in peer-to-peer networks, making network management difficult and security weak.
- Peer-to-peer networks are not recommended for small companies expecting future growth.
- Client-server networks are better for large networks that require a secure environment and centralized control.
- Server-based networks use dedicated, centralized servers for administrative functions and resource sharing.
- Server-based networks are also known as domains and offer better security than peer-to-peer networks.
- In a server-based network, security is centrally administered through a domain controller.
- Server-based networks are suitable for growing companies, large environments, and centralized security needs.
Network Topologies: Bus, Star, Ring, Mesh, and Hybrid
- There are five primary network topologies: Bus, Star, Ring, Mesh, and Hybrid.
- Each topology has its own advantages and disadvantages.
- Table 6.1 summarizes the advantages and disadvantages of each topology.
- The Bus topology is cheap and easy to install, but difficult to reconfigure and a break in the bus disables the entire network.
- The Star topology is cheap, easy to install and reconfigure, and more resilient to a single cable failure, but more expensive than Bus topology.
- The Ring topology is efficient and easy to install, but reconfiguration is difficult and it is very expensive.
- The Mesh topology has the best fault tolerance, but reconfiguration is extremely difficult, expensive, and complex.
- The Hybrid topology combines the best features of each topology used, but it is complex (less so than Mesh).
- Bus topology consists of a single cable that runs to every workstation, each computer shares the same data and address path, and it is the cheapest to install.
- Star topology branches each network device off a central device called a hub or a switch, making it easy to add a new workstation, and it is the most commonly installed network topology.
- Ring topology connects each computer to two other computers in a circle, and it is difficult to add new computers and has low fault tolerance.
- Mesh topology connects each device to every other device, it is rarely found in wired LANs due to the complexity of cabling, but it provides high fault tolerance and is often used to connect multiple sites across WAN links.
- Physical design of the mesh topology is expensive to install and maintain, but there will always be a way to get the data from source to destination.
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Description
Test your knowledge of network topologies and the OSI model with this quiz. Learn about different network topologies, the purpose of the OSI model, and the functions of each layer. Challenge yourself to see how well you understand network protocols and data transmission.
