300-410 VOL1 Question

1

• 300-410 Implementing Cisco Enterprise Advanced
  Routing and Services (ENARSI) VOL1
• QUESTION NO 1
• You have configured router R1 with multiple VRFs
  in order to support multiple customer VPN
  networks. If you wanted to see the best path for
  the 10.1.1.0.24 route in VRF Blue, what command
  would you use?
• show ip route vrf Blue 10.1.1.0
• show ip route 10.1.1.0 vrf Blue
• show route all 10.1.1.0
• show ip route all 10.1.1.0
• Answer A

• QUESTION NO 2
• Which of the following OSPF Link State
  Advertisements (LSAs) were created for IPV6 and
  do not
• apply to IPv4 OSPF networks? (Select two)
• Link LSA (Type 8)
• Summary LSA (Type 3)
• Router LSA (Type 2)
• Intra-Area Prefix LSA (Type 9)
• Opaque LSA (Type 9)
• Answer A, D

• QUESTION NO 3
• Router R1 has been configured with a default
  route like this
• R1(config) ip route 0.0.0.0 0.0.0.0 10.2.3.1
• You want to redistribute this route into OSPF but
  when you configure the redistribute static
  command under the OSPF process the default route
  is not present. What will create a default route
  in the OSPF routing process?
• Use the redistribute static subnets command.
• Create a default metric for the static default
  route.
• Use the default-information originate command
  under the OSPF process.
• Change the static default route to use an
  Administrative Distance (AD) greater than 110.
• Answer C

2

• QUESTION NO 4
• Which one of the following statements regarding
  Bidirectional Forwarding Detection (BFD) is
  correct?
• BFD echo mode is the default mode of operation.
• BFD is not supported for HSRP.
• CEF must be disabled for BFD to work.
• BFD is not supported when using static routes.
• Answer A

• QUESTION NO 5
• Which of the following OSPF neighbor adjacency
  states is applicable only to manually configured
  OSPF neighbors in a Non Broadcast Multi-Access
  network?
• Attempt
• Init
• 2-Way
• Exstart
• Exchange
• Answer A

• QUESTION NO 6
• With Internal BGP, there is a requirement for all
  peers to be logically fully meshed, where all
  IBGP routers must peer with all other IBGP
  routers. For scaling purposes, there are two
  mechanisms that were developed to bypass this
  requirement. What are they?
• Confederations
• IBGP to EBGP route redistribution
• BGP peer filtering
• Route reflectors.
• Answer A, D

QUESTION NO 7
3

• You have configured policy-based routing on
  router R1 to force some traffic to go over an
  alternate link. In order to verify the
  configuration, which debug command should be used
  to verify that the specific traffic is taking
  the intended path?
• Debug policy routing
• Debug ip routing
• Debug ip policy
• Debug policy map
• Answer C

• QUESTION NO 8
• Which BGP attribute can be used to influence the
  path that incoming traffic takes into your AS
  from other Autonomous Systems?
• Metric manipulation
• AS_Path
• Weight
• Local Preference
• Answer B

• QUESTION NO 9
• Routers R1 and R2 have been configured to use
  Bidirectional Forwarding Detection? What is the
  advantage of doing this?
• It is able to discover local link failures at
  layer 1 and provide automatic re-routing
• It is able to discover local link failures at
  layer 1 and provide automatic re-routing
• It is able to discover local link failures at
  layer 1 only and provides detection for this in
  less than one second.
• It is able to discover local link failures at
  layers 1 and 2 and provides detection for this in
  less than one second.
• Answer D

QUESTION NO 10 Which BGP attribute can be used
to influence the path that outgoing traffic takes
from your AS to other Autonomous Systems?
(Select two)
4

• MED
• AS_Path
• Weight
• Local Preference
• Answer C, D

• QUESTION NO 11
• In order to connect between disparate OSPF and
  EIGRP portions of a network, mutual route
  redistribution has been configured. What are two
  disadvantages of doing this?
• Prone to routing loops if not done correctly
• Differing metrics between the routing protocols
  could result in sub-optimal routing.
• Route redistribution is not supported on most
  Cisco router platforms.
• Increased convergence times.
• Answer A, B

• QUESTION NO 12
• Which of the following statements are true
  regarding two EIGRP routers to become neighbors?
• Must have identical hello and dead timers
• Must utilize unique router IDs
• Must have matching MTUs on the physical network
  links that connect the routers.
• Must use the same ASN.
• Answer D

• QUESTION NO 13
• Which of the following statements are true
  regarding two OSPF routers to become neighbors?
  (Select two)
• Must use the same ASN
• Must have identical hello and dead timers
• Must have matching MTUs on the physical network
  links that connect the routers.
• Need not be on the same subnet.
• Answer B, C

5

• QUESTION NO 14
• A new site has been added to an OPSF network
  using area 2. Area 2 is connected only to area 1
  of this OSPF network. Area 1 is used to connect
  area 1 to the backbone area 0. Should you expect
  full connectivity to the networks located in area
  2 from area 0 in this scenario?
• Yes, by default there will be full connectivity.
• No, you will need to redistribute the area 2
  routes into area 0.
• No, a virtual link is needed to logically connect
  area 2 info area 0.
• Yes, but area 2 will need to be configured as a
  stub area.
• Answer C

• QUESTION NO 15
• Router R1 is configured using VRFs to support
  customer VPNs. Some customers are using the
  same private IP address space. Which of the
  following is used to ensure that these routes are
  unique when advertised throughout the VPN?
• Route Distinguisher
• Route Targets
• MP-BGP
• LDP
• Answer A

• QUESTION NO 16
• Two MPLS routers, R1 and R2, are not directly
  connected and have an established LDP session
  running between them. What type of LDP session is
  this?
• Remote LDP session
• Direct LDP session
• Tunneled LDP session
• Targeted LDP session
• Answer D

QUESTION NO 17 What is the total length of an
MPLS header?
6

• 16 bits
• 20 bits
• 28 bits
• 32 bits
• Answer D

• QUESTION NO 18
• Which of the following are valid fields in an
  MPLS header? (Select four)
• Label
• Sequence Number
• Experimental (Exp)
• Bottom of Stack (BoS)
• Time to Live (TTL)
• Checksum
• Answer A, C, D, E

QUESTION NO 19 What TCP port is used by LDP to
provide for reliable transport connections? A.
646 B. 648 C. 752 D. 712 Answer A

• QUESTION NO 20
• Which of the following are control plane
  protocols used within a service provider MPLS
  network? (Choose two)
• OAM
• RSVP
• Targeted LDP
• SNMP
• LDP
• Answer B, E