Question: In the TCP/IP protocol suite, a port number is the identifier at the ____________.
Answer:
- In the TCP/IP protocol suite, a port number is the identifier at the Transport layer (Layer 4).
- A port number is a 16-bit unsigned integer that identifies a specific process or application running on a device. Port numbers are used by the Transport layer to differentiate between different applications and services that are communicating over the network.
- In TCP, the combination of a source IP address, source port number, destination IP address, and destination port number is known as a socket, which uniquely identifies a connection between two devices.
- In UDP, port numbers are used to identify the application or service to which the data is being sent.
- Therefore, the correct answer is the Transport layer.
MCQ: In the TCP/IP protocol suite, a port number is the identifier at the ____________.
Correct Answer:
A. application layer
Explanation:
- In the TCP/IP protocol suite, a port number is the identifier at the Transport layer (Layer 4).
- A port number is a 16-bit unsigned integer that identifies a specific process or application running on a device. Port numbers are used by the Transport layer to differentiate between different applications and services that are communicating over the network.
- In TCP, the combination of a source IP address, source port number, destination IP address, and destination port number is known as a socket, which uniquely identifies a connection between two devices.
- In UDP, port numbers are used to identify the application or service to which the data is being sent.
- Therefore, the correct answer is the Transport layer.
Discuss a Question
Related Questions
- 1. In the TCP/IP protocol suite, a logical address is the identifier at the _______________.
- 2. The _________ layer is responsible for the delivery of a message from one process to another.
- 3. The Internet Protocol (IP) is ________ protocol.
- 4. The application layer in the TCP/IP protocol suite is usually considered to be the combination of ________ layers in the OSI model
- 5. A proposed standard is elevated to ________ standard status after at least two successful tries.
- 6. An RFC is labeled ________ if it must be implemented by all Internet systems.
- 7. In the original ARPANET, _______ were directly connected to each other.
- 8. _______ was formed to connect universities with no defense ties.
- 9. Currently _______ is responsible for the management of Internet domain names and addresses
- 10. In TCP/IP, a message at the application layer is encapsulated in a packet at the ________ layer.
You may be interested in:
Computer Networking MCQsRecently Added Articles
5 Best Amazon Advertising Agencies for Growing Brands
Last updated on: November 6, 2026Posted by: ExamRadar
How Image to Text Conversion Make Printed Study Materials Easier to Use?
Last updated on: October 23, 2026Posted by: ExamRadar
7 Best Online Exam Makers for Teachers, Schools, and Businesses
Last updated on: October 21, 2026Posted by: ExamRadar
How to pick a Bintan resort when you’ve only got 48 hours
Last updated on: September 23, 2026Posted by: ExamRadar
Features to Look for While Choosing the Best Automation Tool
Last updated on: July 15, 2026Posted by: ExamRadar
How Do Java Development Teams Use Docker and Kubernetes to Deploy Applications?
Last updated on: April 24, 2026Posted by: ExamRadar
AI vs Machine Learning: Key Differences Every Professional Should Know
Last updated on: February 13, 2026Posted by: ExamRadar