500-230 Online Practice Questions and Answers

Which underlying protocol(s) does LDP utilize to communicate with LDP Peers?

A. UDP and TCP

B. UDP only

C. LDP uses IP Protocol 646 and does not rely on UDP or TCP

D. TCP only

Which command is used to undo a change after issuing a commit command?

A. router# rollback configuration to -1

B. router(config# commit undo

C. router(config)# commit rollback

D. router# rollback configuration last 1

What is the TRACE command?

A. A packet tracer showing the path of a packet from ingress to egress in the router.

B. The replacement for TraceRoute in IOS-XR.

C. A form of always-on debugging available for a subset of commands.

D. Exactly the same as the debug command, must be explicitly turned on.

Which is required on the CE router in an L3VPN solution?

A. Configure the PE-CE Routing protocol

B. Define the VPN by creating a VRF

C. Assign the PE facing interface to a VRF

D. Configure MPLS forwarding on the interface to the PE router

Which command is used to redistribute BGP into EIGRP for a Layer 3 VPN customer?

A. router(config-eigrp-af)# redistribute bgp 65001

B. router(config-eigrp-vrf-af)# redistribute bgp 65001

C. rouur(config-eigrp-vrf)# redistribute bgp 65001

D. router(config-eigrp)# redistribute bgp 65001

When are core dump files created by the system?

A. There are too many critical events.

B. There are too many duplicate messages.

C. The commit database is full.

D. A process fails or terminates abnormally.

What information is unchanged after a process restart?

A. Job ID

B. Last Started

C. Respawn Count

D. Process ID

Which protocol is a PE to CE routing protocol?

A. ODR

B. LDP

C. RIPv1

D. eBGP

Which command is used to configure an interface that does not currently exist in the system?

A. interface preconfigure

B. preconfigure interface

C. interface vrf preconfig

D. controller preconfigure

What does "ifmgr" represent in the output below?

LC/0/3/CPU0:Mar 23 08:04:31.644 : ifmgr[151]: %PKT_INFRA-LINEPROTO-5-UPDOWN : Line protocol on Interface POS0/3/0/7, changed state to Down

A. The SYSMGR process restarted the ifmgr process as a result of this log message.

B. The WDSYSMON process is tracking this process to prevent it from bringing the interface up.

C. The ifmgr process has restarted 151 times and brought the interface down as a result.

D. The ifmgr process created this log message.