Questions
The following is a short list of review questions to help reinforce your learning and help you identify areas that may require some improvement:
- A technician has received a ticket that describes some CRC errors that have been detected on the network that are causing poor network performance for the users. Which of the following layers should the technician begin the troubleshooting process with?
A. Transport
B. Internet
C. Physical
D. Data Link
- Which of the following layers of TCP/IP is responsible for assigning the logical addressing to the PDU?
A. Network
B. Transport
C. Internet
D. Network Access
- Which of the following is a connectionless protocol?
A. HTTP
B. TCP
C. LLC
D. IP
- Which of the following layers is not part of the OSI model?
A. Application
B. Internet
C. Network
D. Transport
- Service port 25 is associated with which of the following protocols?
A. SMTP
B. DNS
C. HTTP
D. SSH
- Which of the following layers of the OSI model is responsible for data encryption?
A. Network Access
B. Application
C. Session
D. Presentation
- How many bits are there within a MAC address?
A. 49
B. 32
C. 48
D. 128
- How many bits are there in an IPv4 address?
A. 32
B. 49
C. 128
D. 16
- Which of the following layers is responsible for placing the data in the actual network media?
A. Internet
B. MAC
C. LLC
D. Network
- Which of the following is not a valid MAC address?
A. 0c:2d:c4:41:8b:66
B. 3d:f2:51:bf:40:b9
C. 4f:95:I5:b2:68:ca
D. c5:fe:00:4f:73:e6
