500-230 Online Practice Questions and Answers

What command is used to manually generate a core dump to aid in troubleshooting a process?

A. context

B. dumpcore

C. exception

D. follow

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 similar to the Unix TOP command to display process utilization information?

A. show

B. trace processes

C. show process dynamic

D. monitor processes

What is currently required for eBGP sessions in IOS-XR that was not required in IOS?

A. Default MED values

B. Local-Preference values

C. Send Communities

D. Route-Filter In and Out

How many times are Layer 3 lookups performed on a packet transiting a CRS or ASR9k router?

A. Three times: in the ingress linecard, the fabric, and the egress linecard

B. Once: in the active RP/RSP

C. Once: in the ingress linecard

D. Twice: in the ingress linecard and again in the egress linecard

What is included in a VPNv4 route?

A. IPv4 prefix and Route Distinguisher

B. IPv4 prefix and Route Target

C. MP-BGP prefix and Route Target

D. MP-BGP prefix and Route Distinguisher

How frequently does the WDSYSMON Watcher thread wake up to check counters?

A. every 500 msec

B. every 2 sec

C. every 200 msec

D. every 1 sec

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.