Cisco 351-001 Online Practice Questions and Exam Preparation

Cisco 351-001 Online Questions & Answers

• Question 741:

  Which three statements about EVCs are true? (Choose three.)

  A. Spanning Tree must use MST mode on EVC ports.
  B. PAGP is supported on EVC ports.
  C. Spanning Tree must use RSTP mode on EVC ports.
  D. LACP is supported on EVC ports.
  E. Layer 2 multicast framing is supported.
  F. Bridge domain routing is required.
  A. Spanning Tree must use MST mode on EVC ports.
  B. PAGP is supported on EVC ports.
  D. LACP is supported on EVC ports.

  ---

  EVC support requires the following:

  he spanning tree mode must be MST.

  he dot1ad global configuration mode command must be configured.

  These Layer 2 port-based features can run with EVC configured on a port:

  AGP ACP DLD LDP DP STP

  Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12- 2SY/configuration/guide/sy_swcg/ethernet_virtual_connection.html

• Question 742:

  Refer to the exhibit.

  

  Which statement is true?

  A. 2001:DB8::1/128 is a local host route, and it can be redistributed into a dynamic routing protocol.
  B. 2001:DB8::1/128 is a local host route, and it cannot be redistributed into a dynamic routing protocol.
  C. 2001:DB8::1/128 is a local host route that was created because ipv6 unicast-routing is not enabled on this router.
  D. 2001:DB8::1/128 is a route that was put in the IPv6 routing table because one of this router's loopback interfaces has the IPv6 address 2001:DB8::1/128.
  B. 2001:DB8::1/128 is a local host route, and it cannot be redistributed into a dynamic routing protocol.

  ---

  The local routes have the administrative distance of 0. This is the same adminstrative distance as connected routes. However, when you configure redistributed connected under any routing process, the connected routes are redistributed, but the local routes are not. This behavior allows the networks to not require a large number of host routes, because the networks of the interfaces are advertised with their proper masks. These host routes are only needed on the router that owns the IP address in order to process packets destined to that IP address. It is normal for local host routes to be listed in the IPv4 and IPv6 routing table for IP addresses of the router's interfaces. Their purpose is to create a corresponding CEF entry as a receive entry so that the packets destined to this IP address can be processed by the router itself. These routes cannot be redistributed into any routing protocol.

  Reference: http://www.cisco.com/c/en/us/support/docs/ip/ip-routing/116264-technote-ios- 00.html

• Question 743:

  Which two statements about reverse ARP are true? (Choose two.)

  A. Its servers require static mappings.
  B. It works with AutoInstall to configure new devices.
  C. It provides IP addresses for subnet masks.
  D. It provides IP addresses for default gateways.
  E. It requires less maintenance than DHCP.
  A. Its servers require static mappings.
  B. It works with AutoInstall to configure new devices.

• Question 744:

  DRAG DROP

  Drag and drop the IPv6 multicast feature or protocol on the left to the correct address space on the right.

  Select and Place:

  

  

• Question 745:

  Refer to the exhibit.

  

  The device with this configuration is unable to reach network 172.31.31.0/24. The next hop router has been verified to have full connectivity to the network. Which two actions can you take to establish connectivity to the network? (Choose two.)

  A. Create a static route to 172.16.199.0 using the address of the next hop router.
  B. Create a default route to the link address of the next hop router.
  C. Create a static route to the loopback address of the next hop router.
  D. Create a default route to 172.16.199.9.
  E. Modify the existing static route so that the next hop is 0.0.0.0.
  F. Replace the ip default-network command with the ip default-gateway command.
  A. Create a static route to 172.16.199.0 using the address of the next hop router.
  B. Create a default route to the link address of the next hop router.

  ---

  Unlike the ip default-gateway command, you can use ip default-network when ip routing is enabled on the Cisco router. When you configure ip default-network the router considers routes to that network for installation as the gateway of last resort on the router.

  For every network configured with ip default-network, if a router has a route to that network, that route is flagged as a candidate default route. However, in this case if the router does not a route to the drfault network of 172.16.199.9, then you would need to ensure that this route exisits by creating a static route to 172.16.199.0 using the address of the next hop router, or simply create a default route using the address of the next hop router.

• Question 746:

  Which statement about the EIGRP RTO is true?

  A. It is six times the SRTT.
  B. It is the time that it normally takes for an update to be received by a peer.
  C. It is the time that it normally takes to receive a reply to a query.
  D. It is the average time that it takes for a reliable packet to be acknowledged.
  A. It is six times the SRTT.

  ---

  The RTO is typically six times the SRTT, the value may vary from a minimum of 200 microseconds (ms) to a maximum of 5 seconds (s). Reference: EIGRP for IP: Basic Operation and Configuration, Alvaro Retana, Russ White, Don Slice - 2000

• Question 747:

  Refer to the exhibit.

  

  R1 is performing mutual redistribution, but OSPF routes from R3 are unable to reach R2. Which three options are possible reasons for this behavior? (Choose three.)

  A. R1 requires a seed metric to redistribute RIP.
  B. The RIP version supports only classful subnet masks.
  C. R1 is filtering OSPF routes when redistributing into RIP.
  D. R3 and R1 have the same router ID.
  E. R1 and R3 have an MTU mismatch.
  F. R2 is configured to offset OSPF routes with a metric of 16.
  A. R1 requires a seed metric to redistribute RIP.
  C. R1 is filtering OSPF routes when redistributing into RIP.
  F. R2 is configured to offset OSPF routes with a metric of 16.

  ---

  A. RIP requires a seed metric to be specified when redistributing routes into that protocol. A seed metric is a "starter metric" that gives the RIP process a metric it can work with. The OSPF metric of cost is incomprehensible to RIP, since RIP's sole metric is hop count. We've got to give RIP a metric it understands when redistributing routes into that protocol, so let's go back to R1 and do so.

  C. Filtering routes is another explanation, if the routes to R2 are boing filtered from being advertised to R1. F. If the metric is offset to 16, then the routes will have reached the maximum hop count when redistributed to RIP. The max hop count for RIP is 16.

• Question 748:

  Which attribute is transported over an MPLS VPN as a BGP extended community?

  A. route target
  B. route distinguisher
  C. NLRI
  D. origin
  E. local preference
  A. route target

• Question 749:

  Refer to the exhibit.

  

  Which statement is true?

  A. This is an MPLS TE point-to-multipoint LSP in an MPLS network.
  B. This is an MPLS TE multipoint-to-point LSP in an MPLS network.
  C. This is a point-to-multipoint LSP in an MPLS network.
  D. This is a multipoint-to-multipoint LSP in an MPLS network.
  D. This is a multipoint-to-multipoint LSP in an MPLS network.

  ---

  Same example of this provided on slide 24 at the reference link below: Reference: "mVPN Deployment Models" Cisco Live Presentation

  http://d2zmdbbm9feqrf.cloudfront.net/2014/eur/pdf/BRKIPM-2011.pdf, slide 24

• Question 750:

  Which two statements about MAC ACLs are true? (Choose two.)

  A. They support only inbound filtering.
  B. They support both inbound and outbound filtering.
  C. They are configured with the command mac access-list standard.
  D. They can filter non-IP traffic on a VLAN and on a physical interface.
  A. They support only inbound filtering.
  D. They can filter non-IP traffic on a VLAN and on a physical interface.

  ---

  MAC ACL, also known as Ethernet ACL, can filter non-IP traffic on a VLAN and on a physical Layer 2 interface by using MAC addresses in a named MAC extended ACL. The steps to configure a MAC ACL are similar to those of extended named ACLs. MAC ACL supports only inbound traffic filtering.

  Reference: http://www.ciscopress.com/articles/article.asp?p=1181682andseqNum=4