CCNA PRACTICE EXAM QUESTIONS WITH THE BEST
ANSWERS 2024-2025.
1) Which OSI layer header contains the address of a destination host that is on
another network? -- Answer ✔✔ Network Layer
2) At which layer of the OSI model does the protocol that provides the information
that is displayed by the show cdp neighbors command operate? -- Answer ✔✔
data link
3) Which layer of the OSI model controls the reliability of communications between
network devices using flow control, sequencing and acknowledgments? -- Answer
✔✔ Transport Layer
4) Which layer of the TCP/IP stack combines the OSI model physical and data link
layers? -- Answer ✔✔ Network access layer
5) What do switches do? -- Answer ✔✔ Prevent Ethernet Collisions, Create less
collision domains.
6) On a Cisco switch, which protocol determines if an attached VoIP phone is from
Cisco or from another vendor? -- Answer ✔✔ CDP
7) Characteristics that apply to Layer 2 switches? -- Answer ✔✔ Decreases the
number of collision domains and Implements VLAN.
8) Which two characteristics describe the access layer of the hierarchical network
design model? -- Answer ✔✔ Port security and vlans
9) To what type of port would a cable with a DB-60 connector attach? -- Answer
✔✔ Serial port
