Which OSI Transport layer protocol guarantees reliable, connection-oriented delivery through sequence numbers, acknowledgments, and retransmission of lost segments?
Transmission Control Protocol (TCP)
User Datagram Protocol (UDP)
Address Resolution Protocol (ARP)
Internet Protocol (IP)
The Transport layer is responsible for end-to-end data transfer between hosts. Transmission Control Protocol (TCP) establishes a connection, assigns sequence numbers to segments, waits for acknowledgments, and retransmits any missing data, providing reliable delivery. User Datagram Protocol (UDP) also resides at the Transport layer but is connectionless and offers no delivery guarantees. Internet Protocol (IP) works one layer lower at the Network layer, handling logical addressing and routing rather than reliability. Address Resolution Protocol (ARP) maps IP addresses to MAC addresses and operates at the Data Link layer, not the Transport layer.
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
All IT & Cybersecurity Package plans include the following perks and exams .
Our pricing is simple. Full access to all certifications and exams in each package, for one price.
As many practice tests for as many topics as you want.
Use study mode non-stop, no limits.
Access to our AI assistant, Bash, trained to help you pass your exam.
Track your scores over time in study mode and report cards.
See how you improve over time, and where you need to focus.
Access our store with even bigger discounts than before.
Unlimited access to all performance questions and be prepared for the real thing.
All IT & Cybersecurity Package plans include unlimited access to the following study materials.
Create an account or sign in to access our study materials.