Fundamentals of Computer Networks

What is a network topology?

• The speed of a network connection

• The type of cables used in a network

• Network topology is the layout or structure of a network.

• The number of devices connected to a network

What is the primary function of the OSI model?

• To enhance the speed of data transmission

• The primary function of the OSI model is to standardize network communication protocols to enable diverse systems to communicate effectively.

• To manage user access and permissions

• To provide physical hardware specifications

How many layers are there in the OSI model?

• 7

• 10

• 3

• 5

What does the physical layer of the OSI model deal with?

• The physical layer manages data encryption and decryption.

• The physical layer is responsible for routing data packets.

• The physical layer deals with the transmission of raw bitstreams over physical media.

• The physical layer handles application-level protocols.

Define packet switching.

• Packet switching is only used in wireless networks.

• Packet switching requires a dedicated connection for each transmission.

• Packet switching is a method of data transmission that breaks data into packets sent independently over a network.

• Packet switching is a method that sends data in a single continuous stream.

What is circuit switching?

• Circuit switching is a technique that does not require a dedicated connection for communication.

• Circuit switching is a method that uses packet data transmission.

• Circuit switching is a communication method that establishes a dedicated path between two endpoints for the duration of the transmission.

• Circuit switching allows multiple users to share the same communication path simultaneously.

What are the advantages of packet switching over circuit switching?

• Packet switching is slower than circuit switching for real-time applications.

• Circuit switching is more flexible for varying data loads.

• Packet switching requires a dedicated connection for each communication.

• Packet switching is more efficient, resilient, and better suited for variable data rates compared to circuit switching.

Explain the difference between the OSI model and the TCP/IP model.

• The OSI model is used for network security, while the TCP/IP model is for data storage.

• The OSI model has seven layers, while the TCP/IP model has four layers.

• The OSI model is a protocol suite, while the TCP/IP model is a theoretical framework.

• The OSI model has four layers, while the TCP/IP model has seven layers.

What is the role of the transport layer in the OSI model?

• The transport layer manages end-to-end communication, reliability, and flow control in the OSI model.

• The transport layer handles physical connections between devices.

• The transport layer manages the routing of packets across networks.

• The transport layer is responsible for data encryption and decryption.

Describe the client-server architecture.

• Servers only send data without receiving requests.

• Client-server architecture does not involve communication between clients and servers.

• Clients and servers are the same entity.

• Client-server architecture is a model where clients request services from servers, which provide resources and responses.