CCNA Practice Certification Exam # 2- CCNA Exploration: Accessing the WAN (Version 4.0)
1. Refer to the exhibit. The exhibit shows simplified protocol data units from different OSI model layers. Which three statements are true about the PDUs and the encapsulation process? (Choose three.)
| | PDU #1 is a frame. |
| | PDU #2 is an application layer PDU |
| | PDU #3 is a segment. |
| | PDU #4 is a transport layer PDU. |
| | The order in which these PDUs are created during the encapsulation process is 3, 4, 1, 2. |
| | The order in which these PDUs are created during the encapsulation process is 2, 1, 4, 3. |
2. Which three application layer protocols use TCP? (Choose three.)
| | SMTP |
| | FTP |
| | SNMP |
| | HTTP |
| | TFTP |
| | DHCP |
3. Which two application layer protocols use the UDP protocol? (Choose two.)
| | Telnet |
| | SNMP |
| | SMTP |
| | SQL |
| | TFTP |
