Online Networking Pop Quiz 1

During a networking class, Erne asked, "What is layer 4 of the OSI model called?"

• Physical Layer

• Transport Layer

• Data Link Layer

• Network Layer

During a group project, Lee-Amber and Erne are discussing how to ensure that the data they are sharing is in the correct syntax. What layer of the OSI model should they focus on to achieve this?

• Presentation layer

• Application layer

• Network layer

• Transport layer

During a group project, Erne and Lee-Amber are discussing how devices communicate on their local network. What means of identifying a device on a local subnet can be found at layer 2 of the OSI model?

• MAC address

• Port number

• IP address

• Hostname

During a cybersecurity class, Erne asked, "The port number range of 0 - 1024 is referred to as what?"

• Reserved ports

• Dynamic ports

• Well-known ports

• Private ports

During a group project, Lee-Amber and Erne are discussing the best way to ensure that their data is reliably sent and received over the network. What protocol guarantees delivery of data through the use of acknowledgments and sequence numbers?

• Internet Control Message Protocol (ICMP)

• File Transfer Protocol (FTP)

• User Datagram Protocol (UDP)

• Transmission Control Protocol (TCP)

During a networking class, Erne asked, "What logical port number is assigned to the NTP?"

• 80

• 443

• 123

• 25

During a group project, Lee-Amber sends a request to Erne to start collaborating. What is the second step of the three-way handshake in their communication?

• SYN

• ACK

• FIN

• SYN-ACK

During a computer networking class, Erne asked, "What organization assigns port numbers?"

• World Wide Web Consortium (W3C)

• Internet Engineering Task Force (IETF)

• Institute of Electrical and Electronics Engineers (IEEE)

• Internet Assigned Numbers Authority (IANA)

During a class project, Lee-Amber and Erne are discussing the OSI model. They want to know which layer is responsible for the routing of traffic. What do you think?

• Transport layer

• Data Link layer

• Application layer

• Network layer

During a group project, Erne and Lee-Amber are discussing how Wi-Fi networks connect devices. They wonder which access method is used for these connections.

• Aloha

• FDMA

• CSMA/CA

• TDMA