NetworkingSecurity_Lecture1_recap

What is the purpose of DNS?

• To encrypt data transmitted over the internet

• To translate human-readable domain names into IP addresses

• To provide secure access to websites

• To block access to certain websites

Which layer of the OSI model is responsible for routing packets between networks?

• Data Link Layer

• Network Layer

• Transport Layer

• Session Layer

Which layer of the OSI model is responsible for establishing, managing, and terminating sessions between applications?

• Data Link Layer

• Network Layer

• Transport Layer

• Session Layer

Which layer of the OSI model is responsible for encoding and decoding data for transmission over the network?

• Data Link Layer

• Physical Layer

• Transport Layer

• Presentation Layer

What is the OSI model?

• A set of rules for transmitting data over the internet

• A standard for designing network hardware

• A model that describes the layers of communication that occur over a network

• A security protocol used for securing network communications

What are network protocols?

• Programs that run on a computer to manage network connections

• Sets of rules and standards that govern how data is transmitted over a network

• Hardware devices that connect networks together

• User interfaces used to configure network settings

Which device is the endpoint of a network connection and communicates directly with the network?

• Switch

• Router

• Modem

• End Device

Which device connects two different networks and allows them to communicate with each other?

• Switch

• Router

• Modem

• Wireless Access Point

Which device provides wireless network connectivity to devices within a certain area and also connects them to a wired network?

• Switch

• Router

• Modem

• Wireless Access Point

What is a unit of data at the Network Layer of the OSI Model?

• Packet

• Frame

• Segment