Cisco 350-501 Online Practice Questions and Exam Preparation

Cisco 350-501 Online Questions & Answers

• Question 541:

  Which three configuration sections are required on service provider PE router to enable IPv4 layer 3 VPN? (Choose three)

  A. Configure route targets that are used for importing and exporting customer VRF routes.
  B. Configure route distinguisher that is used for importing and exporting customer VRF routes.
  C. Implement MPLS for all customer-facing links.
  D. Configure the VPNv4 address-family under the MP-BGP configuration mode on the PE routers that participate in the customer VRF routing.
  E. Configure at least one interface that is assigned to a customer link as a member of the VRF
  F. Advertise customer route to all PE router by configure the IPv4 address-family under the MP-BGP configuration mode.
  A. Configure route targets that are used for importing and exporting customer VRF routes.
  D. Configure the VPNv4 address-family under the MP-BGP configuration mode on the PE routers that participate in the customer VRF routing.
  E. Configure at least one interface that is assigned to a customer link as a member of the VRF

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  Explanation

• Question 542:

  Refer to the exhibit.

  

  VPN-RR#show bgp vpnv4 un all 0.0.0.0 BGP routing table entry for 65010:1:0.0.0.0/0, version 14 Paths: (1 available, best #1, no table) Advertised to update-groups:

  Refresh Epoch 1 Local, (Received from a RR-client) 172.17.255.1 (metric 2) (via default) from 172.17.255.1 (172.17.255.1) Origin incomplete, metric 1, localpref 100, valid, internal, best Community: 65010:1 Extended Community: RT:65010:100200 OSPF DOMAIN ID:0x0005:0x000000640200 OSPF RT:0.0.0.5:1 OSPF ROUTER ID:100.65.0.1:0 mpls labels in/out nolabel/18 rx pathid: 0, tx pathid: 0x0

  The network engineer who manages ASN 65010 is provisioning a customer VRF named CUSTOMER-ABC on PE-2. The PE-CE routing protocol is OSPF Internet reachability is available via the OSPF 0 0 0.0/0 route advertised by CE-1 to PE-1 In the customer VRF

  Which configuration must the network engineer Implement on PE-2 so that CE-2 has connectivity to the Internet?

  

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  C. Option C

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  Explanation

• Question 543:

  A network architect plans to implement MPLS OAM to provide additional troubleshooting functionality for the NOC team. After analyzing the configuration on the MPLS P/PE nodes, the architect decides to revise the CoPP policies. Which two actions ensure that the new solution is secure? (Choose two.)

  A. Allow port 3505 in the outbound direction only.
  B. Allow the ICMP protocol only.
  C. Allow the TCP and UDP protocols.
  D. Allow the UDP protocol only.
  E. Allow port 3503 in the inbound direction only.
  D. Allow the UDP protocol only.
  E. Allow port 3503 in the inbound direction only.

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  Explanation

• Question 544:

  How does TI-LFA reduce packet loss in Segment routing?

  A. It determines which link to use when load balancing to prevent packet fragmentation loss.
  B. It establishes multiple labels per path using more than one IGP.
  C. It calculates loop-free backup paths that are rapidly implemented in case of a link failure.
  D. It enables path selection in SR-TE to support MPLS label allocation.
  C. It calculates loop-free backup paths that are rapidly implemented in case of a link failure.

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  Explanation

• Question 545:

  Refer to the exhibit.

  

  An ISP engineer configured a VRF to isolate traffic for the customer ciscotest as shown. Now, the engineer must implement the Intra-AS VPN feature on PE1 to pass traffic between customer sites. Which additional configuration must the engineer apply to PE1 to meet this requirement?

  A. router bgp 64525address-family ipv4 unicastneighbor 192.168.1.1remote-as 64520update-source Loopback0address-family ipv4 unicast
  B. router bgp 64525address-family vpnv4 unicastneighbor 192.168.1.1remote-as 64525update-source Loopback0address-family vpnv4 unicast
  C. router bgp 64525address-family ipv4 unicastneighbor 192.168.1.1remote-as 64526address-family ipv4 unicast
  D. router bgp 64525address-family vpnv4 unicastneighbor 192.168.1.1remote-as 64516update-source Loopback0address-family vpnv4 unicast
  B. router bgp 64525address-family vpnv4 unicastneighbor 192.168.1.1remote-as 64525update-source Loopback0address-family vpnv4 unicast

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  Explanation

• Question 546:

  Which utility can you use to locate MPLS faults?

  A. MPLS LSP ping
  B. QoS
  C. MPLS traceroute
  D. EEM
  C. MPLS traceroute

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  Explanation

  MPLS LSP ping is a utility for locating faults within an MPLS network, specifically for Label Switched Paths (LSPs). It helps in verifying the LSPs in the MPLS network. The utility sends echo requests to the destination, and if the path is complete, echo replies are received.

• Question 547:

  Refer to the exhibit.

  

  An engineer wants to authenticate the OSPF neighbor between PE-A and PE-B using MD5.

  Which command on PE-B successfully completes the configuration?

  A. PE-B(config-if)#ip ospf message-digest-key 1 md5 44578611PE-B(config-if)#ip ospf authentication null
  B. PE-B(config-if)#ip ospf message-digest-key 1 md5 44578611PE-B(config-if)#ip ospf authentication key-chain 44578611
  C. PE-B(config-if)#ip ospf message-digest-key 1 md5 44568611PE-B(config-if)#ip ospf authentication null
  D. PE-B(config-if)#ip ospf message-digest-key 1 md5 44578611PE-B(config-if)#ip ospf authentication message-digest
  D. PE-B(config-if)#ip ospf message-digest-key 1 md5 44578611PE-B(config-if)#ip ospf authentication message-digest

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  Explanation

  The correct command to authenticate the OSPF neighbor between PE-A and PE-B using MD5 is found in Option A. In this option, the command ip ospf message-digest-key 1 md5 44578611 is used to configure OSPF MD5 authentication on an interface with the key ID as 1 and key string as 44578611. The second command ip ospf authentication key-chain 44578611 is used to enable OSPF authentication on an interface and associate it with a specific key chain.

• Question 548:

  What are two characteristics of MPLS TE turrets? (Choose two)

  A. They require EIGRP to be running in the core.
  B. They use RSVP to provide bandwidth for the tunnel.
  C. They are run over Ethernet cores only.
  D. The headend and tailend routes of the tunnel must have a BGP relationship
  E. They are unidirectional
  B. They use RSVP to provide bandwidth for the tunnel.
  E. They are unidirectional

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  Explanation

  MPLS TE tunnels are designed to optimize the flow of network traffic by mapping it onto specific paths based on resource requirements. Two key characteristics of MPLS TE tunnels are:

  RSVP for Bandwidth Reservation: MPLS TE tunnels use the Resource Reservation Protocol (RSVP) to reserve the necessary bandwidth for the tunnel, ensuring that the required resources are available for the data that will flow through it. Unidirectional Flow: These tunnels are unidirectional, meaning they are established from a source to a destination and do not inherently support traffic in the reverse direction. This is because each MPLS TE tunnel is associated with a label- switched path (LSP) that is specifically set up for traffic flowing in one direction

  https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_te_path_setup/configuration/xe-3s/mp-te-path-setup-xe-3s-book/mp-te-auto-bandwdth.html https://www.ciscopress.com/articles/article.asp?p=426640andseqNum=2

• Question 549:

  Refer to the exhibit.

  

  A network administrator is implementing IGMP to enable multicast feed transmission to the receiver. Which configuration must the administrator deploy on GW1 to permit IGMP joins only to the assigned (S, G) feed?

  A. config taccess-list 100 permit igmp host 0.0.0.0 host 239.10.10.10access-list 100 deny igmp any anyinterface GigabitEthernet1ip igmp access-group 100ip igmp version 3end
  B. config taccess-list 100 permit igmp host 0.0.0.0 host 239.10.10.10access-list 100 deny igmp any anyinterface GigabitEthernet1ip igmp access-group 100ip igmp version 2end
  C. config taccess-list 100 permit igmp host 0.0.0.0 host 239.10.10.10access-list 100 permit igmp host 172.20.20.3 host 239.10.10.10access-list 100 deny igmp any anyinterface GigabitEthernet1ip igmp access-group 100ip igmp version 3end
  D. config taccess-list 100 permit igmp host 0.0.0.0 host 239.10.10.10access-list 100 permit igmp host 172.20.20.3 host 239.10.10.10access-list 100 deny igmp any anyinterface GigabitEthernet1ip igmp access-group 100ip igmp version 2end
  C. config taccess-list 100 permit igmp host 0.0.0.0 host 239.10.10.10access-list 100 permit igmp host 172.20.20.3 host 239.10.10.10access-list 100 deny igmp any anyinterface GigabitEthernet1ip igmp access-group 100ip igmp version 3end

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  Explanation

• Question 550:

  Which regular expression query modifier function indicates the start of a string?

  A. +
  B. ^
  C. $
  D. [^]
  B. ^

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  Explanation

  In the context of regular expressions, the caret (^) is used to indicate the start of a string. This is a fundamental concept in pattern matching using regular expressions, where ^ matches the position at the beginning of the string. This information is consistent with regular expression syntax as described in various Cisco documentation and resources related to Cisco IOS software configurations.