Cisco 500-230 Online Practice Questions and Exam Preparation

Cisco 500-230 Online Questions & Answers

• Question 1:

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

• Question 2:

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

• Question 3:

  How are labels exchanged between the AS'es in an Option B Layer-3 VPN solution?

  A. Via an eBGP multihop connection between the Ingress PE's in each AS.
  B. Via an eBGP multihop connection between a Route-Reflector in each AS.
  C. There are no labels exchanged between the two AS'es.
  D. Via an eBGP connection between the directly connected ASBR's, one in each AS.
  D. Via an eBGP connection between the directly connected ASBR's, one in each AS.

• Question 4:

  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
  D. Route-Filter In and Out

• Question 5:

  How do you verify the label(s) used between the ASBRs in Option A Inter-AS L3VPN operation?

  A. There are no labels used between the ASBRs
  B. Verify the labels assigned by MP-BGP in the SHOW BGP VPNV4 UNICAST
  C. Verify the labels assigned by MP-BGP in the SHOW CEF VRF output
  D. Verify the labels assigned by LDP in the output of SHOW MPLS FORWARDING
  A. There are no labels used between the ASBRs

• Question 6:

  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
  D. every 1 sec

• Question 7:

  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.
  D. The ifmgr process created this log message.

• Question 8:

  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
  D. router# rollback configuration last 1

• Question 9:

  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
  A. UDP and TCP

• Question 10:

  Which statements are true regarding L3VPN configurations?

  A. Prior to configuring a vrf within MP-BGP, the router has to have instantiated the VPNv4 or VPNv6 address-family.
  B. On a single PE router, the Route Distinguisher and the Route Targets must be the same.
  C. Prior to configuring a neighbor in the VPNv4 address-family, it must already be configured for IPv4-Unicast.
  D. The import and export Route Targets must be the same on a PE.
  C. Prior to configuring a neighbor in the VPNv4 address-family, it must already be configured for IPv4-Unicast.