200-125 sample questions

Question 1

A network administrator needs to configure port security on a switch. Which two statements are true? (Choose two.)

Accepted Answer

The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.

Accepted Answer

When dynamic MAC address learning is enabled on an interface, the switch can learn new addresses, up to the maximum defined.

Answer

The network administrator can apply port security to dynamic access ports.

Answer

The network administrator can apply port security to EtherChannels.

Answer

The network administrator can configure static secure or sticky secure MAC addresses in the voice VLAN.

Question 2

Which interface counter can you use to diagnose a duplex mismatch problem?

Accepted Answer

late collisions

Answer

no carrier

Answer

giants

Answer

CRC errors

Answer

deferred

Answer

runts

Question 3

Which switching method duplicates the first six bytes of a frame before making a switching decision?

Accepted Answer

cut-through switching

Answer

fragment-free switching

Answer

store-and-forward switching

Answer

ASIC switching

Question 4

Which logging command can enable administrators to correlate syslog messages with millisecond precision?

Accepted Answer

service timestamps log datetime mscec

Answer

no logging console

Answer

logging buffered 4

Answer

no logging monitor

Answer

logging host 10.2.0.21

Question 5

Which two spanning-tree port states does RSTP combine to allow faster convergence? (Choose two.)

Accepted Answer

blocking

Accepted Answer

listening AE

Answer

learning

Answer

forwarding

Answer

discarding

Question 6

Which feature can you implement to reserve bandwidth for VoIP calls across the call path?

Accepted Answer

RSVP

Answer

CBWFQ

Answer

round robin

Cisco Certified Network Associate (CCNA) Free Sample Questions