Cisco CCNA Practice Test 9

Cisco CCNA Exam Practice Test

1 / 20

A switch receives a frame with an unknown destination MAC address. What does it do?

2 / 20

What is the primary benefit of using a spine-leaf topology?

3 / 20

What prevents unauthorized VLAN hopping attacks?

4 / 20

What command assigns an IPv6 address to a router interface?

5 / 20

Which attack type attempts to exhaust a switch's MAC address table?

6 / 20

What command shows OSPF neighbors on a Cisco router?

7 / 20

What VLAN range can be used for dynamically assigned VLANs?

8 / 20

Which protocol is used by SNMP to collect network device information?

9 / 20

A user reports an issue with slow network performance. What is the best Cisco command to check for interface errors?

10 / 20

What mechanism allows a Layer 3 switch to perform routing without CPU involvement?

11 / 20

What is the administrative distance of an OSPF route?

12 / 20

Which command displays detailed TCP and UDP connections on a Cisco device?

13 / 20

What protocol enables a router to assign an IP address to a device based on its MAC address?

14 / 20

A switch port is in the err-disabled state due to a violation. What command restores it?

15 / 20

What is the purpose of OSPF's LSA (Link-State Advertisement) Type 3?

16 / 20

What type of attack exploits the Spanning Tree Protocol by introducing a rogue root bridge?

17 / 20

A router receives a packet with a TTL of 1. What happens next?

18 / 20

What type of NAT allows multiple private IP addresses to share a single public IP?

19 / 20

What is the primary advantage of using EtherChannel on a switch?

20 / 20

A network engineer configures inter-VLAN routing using a Layer 3 switch. What must be done to allow VLANs to communicate?

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