400-101 CCIE Routing and Switching Written Practice Exam Set 6

Which of the following statements is true regarding how EIGRP and OSPF handle metrics for summarized routes by default? (Select the best answer.)


Options are :

  • EIGRP and OSPF both use the worst metric from among all component routes.
  • EIGRP uses the best metric from among all component routes, whereas OSPF uses the worst metric
  • EIGRP and OSPF both use the best metric from among all component routes. (Correct)
  • EIGRP uses the worst metric from among all component routes, whereas OSPF uses the best metric.

Answer : EIGRP and OSPF both use the best metric from among all component routes.

Which of the following statements are true regarding DMVPNs? (Select 2 choices.)


Options are :

  • NHRP mappings are created on the spokes when the hub registers with the spokes.
  • The hub must have a static physical IP address. (Correct)
  • The hub must have a dynamic physical IP address.
  • NHRP mappings are created on the hub when the spokes register with the hub. (Correct)

Answer : The hub must have a static physical IP address. NHRP mappings are created on the hub when the spokes register with the hub.

Which of the following is used to discover IPv6 hosts that want to receive multicast traffic? (Select the best answer.)


Options are :

  • IGMPv3
  • MSDP
  • .uRPF
  • MLD (Correct)

Answer : MLD

400-101 CCIE Routing and Switching Written Practice Exam Set 9

Which of the following are protocols that are used by the control plane? (Select 2 choices.)


Options are :

  • SSH and Telnet
  • EIGRP and OSPF (Correct)
  • HTTP, HTTPS, and SNMP
  • FIB and LFIB
  • TDP and LDP (Correct)

Answer : EIGRP and OSPF TDP and LDP

Which of the following statements are correct regarding traffic shaping? (Select 2 choices.)


Options are :

  • Traffic shaping does not smooth traffic.
  • Traffic shaping is applied to only inbound traffic.
  • Traffic shaping drops or remarks excess traffic
  • Traffic shaping uses a leaky bucket to smooth traffic. (Correct)
  • .Traffic shaping buffers excess traffic. (Correct)

Answer : Traffic shaping uses a leaky bucket to smooth traffic. .Traffic shaping buffers excess traffic.

In which of the following locations does BGP PIC store an alternate path? (Select the best answer.)


Options are :

  • only in the FIB
  • only in the RIB
  • only in CEF
  • in the RIB, in the FIB, and in CEF (Correct)
  • only in the RIB and the FIB

Answer : in the RIB, in the FIB, and in CEF

400-101 CCIE Routing and Switching Written Practice Exam Set 12

What are the first three criteria used by a BGP router to determine the best path to a destination? (Select the best answer.)


Options are :

  • .highest local preference, shortest AS path, highest weight
  • highest weight, shortest AS path, lowest MED
  • lowest MED, highest weight, highest local preference
  • highest weight, highest local preference, locally originated paths (Correct)

Answer : highest weight, highest local preference, locally originated paths

Which of the following information does a Type 2 LSA contain? (Select the best answer.)


Options are :

  • subnet information for an entire area
  • the router ID and the IP addresses for a single router
  • external routes redistributed into OSPF
  • .subnet and router information for all the routers on a segment (Correct)

Answer : .subnet and router information for all the routers on a segment

You are configuring 802.1X authentication on the FastEthernet 0/1 port on a switch named SwitchA. You want to ensure that any hosts connected to the port are authenticated by using 802.1X before the hosts can transmit data through the switch. Which of the following command sequences should you issue on SwitchA? (Select the best answer.)


Options are :

  • SwitchA#configure terminalSwitchA(config)#aaa newmodel SwitchA(config)#aaa authentication dot1x default group radius SwitchA(config)#dot1x systemauthcontrol SwitchA(config)#interface fastethernet 0/1 SwitchA(configif)#dot1x portcontrol auto (Correct)
  • SwitchA#configure terminalSwitchA(config)#aaa newmodel SwitchA(config)#aaa authentication dot1x default group radius SwitchA(config)#dot1x systemauthcontrol SwitchA(config)#interface fastethernet 0/1 SwitchA(configif)#dot1x portcontrol forceauthorized
  • SwitchA#configure terminalSwitchA(config)#aaa newmodel SwitchA(config)#aaa authentication dot1x default group radius SwitchA(config)#dot1x systemauthcontrol SwitchA(config)#interface fastethernet 0/1 SwitchA(configif)#dot1x portcontrol forceunauthorized
  • SwitchA#configure terminalSwitchA(config)#aaa newmodel SwitchA(config)#aaa authentication dot1x default group radius SwitchA(config)#dot1x systemauthcontrol SwitchA(config)#interface fastethernet 0/1 SwitchA(configif)#dot1x portcontrol all

Answer : SwitchA#configure terminalSwitchA(config)#aaa newmodel SwitchA(config)#aaa authentication dot1x default group radius SwitchA(config)#dot1x systemauthcontrol SwitchA(config)#interface fastethernet 0/1 SwitchA(configif)#dot1x portcontrol auto

400-101 CCIE Routing and Switching Written Practice Exam Set 7

Which of the following command sets correctly configures basic IPv6toIPv4 connectivity for NAT-PT? (Select the best answer.)


Options are :

  • .Router(config)#ipv6 nat prefix 2000:ABC::/96 Router(config)#interface fastethernet 1/1 Router(configif)#ipv6 nat Router(configif)#interface fastethernet 1/2 Router(configif)#ipv6 nat (Correct)
  • Router(config)#ipv6 nat prefix 2000:ABC::/64Router(config)#ipv6 nat
  • Router(config)#ipv6 nat prefix 2000:ABC::/64 Router(config)#interface fastethernet 1/1 Router(configif)#ipv6 nat Router(configif)#interface fastethernet 1/2 Router(configif)#ipv6 nat
  • Router(config)#ipv6 nat prefix 2000:ABC::/32Router(config)#ipv6 nat

Answer : .Router(config)#ipv6 nat prefix 2000:ABC::/96 Router(config)#interface fastethernet 1/1 Router(configif)#ipv6 nat Router(configif)#interface fastethernet 1/2 Router(configif)#ipv6 nat

Which of the following actions should a nonroot switch take when it receives a TCN BPDU? (Select 2 choices.)


Options are :

  • send a TCA BPDU to the root port
  • send TC BPDUs to all ports
  • send a TCA BPDU to the port that received the TCN (Correct)
  • send TCN BPDUs to the root por (Correct)

Answer : send a TCA BPDU to the port that received the TCN send TCN BPDUs to the root por

RouterA and RouterB are connected by their FastEthernet 0/0 interfaces, are configured for EIGRP AS 30, and are configured with the appropriate network commands. You issue the following commands on RouterA: RouterA(config)#router eigrp 30 RouterA(config-router)#passive-interface FastEthernet 0/0 Which of the following statements best describes what will occur? (Select the best answer.)


Options are :

  • RouterA will send routes to and receive routes from RouterB.
  • RouterA will neither send routes to nor receive routes from RouterB (Correct)
  • RouterA will receive routes from RouterB but will not advertise routes to RouterB.
  • RouterA will advertise routes to RouterB but will not receive routes from RouterB.

Answer : RouterA will neither send routes to nor receive routes from RouterB

400-101 CCIE Routing and Switching Written Practice Exam Set 9

Which of the following IPv6 prefixes is used for multicast addresses? (Select the best answer.)


Options are :

  • FF00::/8 (Correct)
  • FE80::/10
  • FC00::/8
  • FD00::/8
  • 2000::/3

Answer : FF00::/8

Which of the following does a router consider when measuring a responder's processing time with IP SLA operations? (Select the best answer.)


Options are :

  • .ICMP one-way travel time from the responder to the transmitter
  • responder packet timestamps (Correct)
  • responder interface speeds
  • ICMP round-trip travel time
  • ICMP one-way travel time from the transmitter to the responder

Answer : responder packet timestamps

Two switches are connected by an LACP EtherChannel bundle. Which criterion is considered first in order to determine which ports should become active? (Select the best answer.)


Options are :

  • .the port priority of each switch port
  • the port number of each switch port
  • the system priority of each switch (Correct)
  • the MAC address of each switch

Answer : the system priority of each switch

400-101 CCIE Routing and Switching Written Practice Exam Set 8

Which of the following statements are true regarding PVLANs? (Select 2 choices.)


Options are :

  • Primary VLANs must be configured as isolated or community VLANs.
  • A VTPv2 switch must be configured for transparent mode to support PVLANs. (Correct)
  • Community VLANs can communicate with both community and isolated VLANs.
  • Promiscuous ports can service multiple primary VLANs.
  • .Routers, firewalls, and gateways should be connected to promiscuous ports. (Correct)

Answer : A VTPv2 switch must be configured for transparent mode to support PVLANs. .Routers, firewalls, and gateways should be connected to promiscuous ports.

You issue the following commands on a router: line console 0 exec-timeout 1 30 How long will the console session to the router remain established without input before the session is automatically disconnected? (Select the best answer.)


Options are :

  • 30 seconds
  • 30 minutes
  • 60 seconds
  • 90 seconds (Correct)

Answer : 90 seconds

You implement MPP by issuing the following commands on Router1: Router1(config)#controlplane host Router1(config-cp-host)#management-interface FastEthernet0/1 allow ssh Which of the following statements are correct? (Select 2 choices.)


Options are :

  • .Fa0/1 accepts only SSH packets.
  • Fa0/1 is configured for outofband management.
  • Only SSH packets received by the Fa0/1 interface can be used to remotely manage Router1. (Correct)
  • SSH traffic cannot be received by any other interfaces.
  • .Fa0/1 accepts normal data traffic. (Correct)

Answer : Only SSH packets received by the Fa0/1 interface can be used to remotely manage Router1. .Fa0/1 accepts normal data traffic.

400-101 CCIE Routing and Switching Written Practice Exam Set 7

Which of the following terms refers to a method that is used to pass IPv6 traffic over an IPv4-only network? (Select the best answer.)


Options are :

  • 6to4 tunneling (Correct)
  • dual stacks
  • .NAT64
  • 4to6 tunneling

Answer : 6to4 tunneling

Which of the following statements are true regarding VPLS? (Select 2 choices.)


Options are :

  • The VPLS core uses splithorizon forwarding. (Correct)
  • Each EMS in the VPLS network functions as a single broadcast domain (Correct)
  • UPE devices are typically connected in a partialmesh topology.
  • A PW is a physical connection from a UPE device to a CE device
  • .MAC aging is required for convergence after the failure of an NPE router.

Answer : The VPLS core uses splithorizon forwarding. Each EMS in the VPLS network functions as a single broadcast domain

Which of the following statements is true regarding the use of the network command with OSPFv3 and EIGRPv6? (Select the best answer.)


Options are :

  • The network command is required with EIGRPv6 but is not required with OSPFv3
  • The network command is required with neither OSPFv3 nor EIGRPv6. (Correct)
  • The network command is required with both OSPFv3 and EIGRPv6.
  • The network command is required with OSPFv3 but is not required with EIGRPv6

Answer : The network command is required with neither OSPFv3 nor EIGRPv6.

400-101 CCIE Routing and Switching Written Practice Exam Set 4

Two routers have been set up to establish a VPN tunnel. Both routers support GRE and IPSec, and both routers are configured with IPv4 and IPv6 addresses. You issue the tunnel mode auto command on both routers. Which of the following statements is true? (Select the best answer.)


Options are :

  • IPSec will be used for the tunneling protocol, and IPv6 will be used for the transport protocol.
  • GRE will be used for the tunneling protocol, and IPv6 will be used for the transport protocol.
  • IPSec will be used for the tunneling protocol, and IPv4 will be used for the transport protocol.
  • The tunnel will not establish, because one router must be configured statically. (Correct)
  • GRE will be used for the tunneling protocol, and IPv4 will be used for the transport protocol.

Answer : The tunnel will not establish, because one router must be configured statically.

Which of the following is a characteristic of the BFD Echo function? (Select the best answer.)


Options are :

  • It can be enabled only with Asynchronous mode.
  • It supports more BFD sessions than Demand mode supports.
  • It can decrease roundtrip jitter. (Correct)
  • .It requires fewer packets for failure detection.

Answer : It can decrease roundtrip jitter.

Which of the following actions should you perform in order to drop unencrypted traffic sent from an unregistered group member? (Select the best answer.)


Options are :

  • Enable the Fail-Close feature. (Correct)
  • Disable SAR.
  • .Enable SAR.
  • Disable the Fail-Close feature.

Answer : Enable the Fail-Close feature.

400-101 CCIE Routing and Switching Written Practice Exam Set 9

Which of the following is a reason to use NPTv6 for IPv6 address translation? (Select the best answer.)


Options are :

  • to statefully translate IPv6 addresses
  • to ensure that Transport layer headers are properly rewritten
  • to preserve end-to-end reachability at the Network layer (Correct)
  • to implement IPv6 many-to-one translation

Answer : to preserve end-to-end reachability at the Network layer

You issue the show ip pim tunnel command on Router1, which is an RP. Which of the following will appear in the output of the show ip pim tunnelcommand? (Select the best answer.)


Options are :

  • neither a PIM encapsulation tunnel interface nor a PIM decapsulation tunnel interface
  • only a PIM encapsulation tunnel interface
  • only a PIM decapsulation tunnel interface
  • .both a PIM encapsulation tunnel interface and a PIM decapsulation tunnel interface (Correct)

Answer : .both a PIM encapsulation tunnel interface and a PIM decapsulation tunnel interface

Which of the following floods LSA information to all other routers on a multiaccess segment? (Select the best answer.)


Options are :

  • all routers in an area
  • only the BDR
  • .only the DR (Correct)
  • the DR and BDR

Answer : .only the DR

400-101 CCIE Routing and Switching Written Practice Exam Set 4

You have issued the following commands on RouterA: Pseudowire-class boson ip pmtu RouterA receives a packet that is larger than the path MTU and that has a DF bit set to 0. Which of the following will RouterA do? (Select 2 choices.)


Options are :

  • RouterA will fragment the packet before L2TP/IP encapsulation occurs. (Correct)
  • RouterA will drop the packet.
  • .RouterA will forward the packet. (Correct)
  • RouterA will return an ICMP unreachable message to the sender.

Answer : RouterA will fragment the packet before L2TP/IP encapsulation occurs. .RouterA will forward the packet.

Which of the following OSPF area types do not generate a default summary route by default? (Select 2 choices.)


Options are :

  • stub
  • normal (Correct)
  • totally stubby
  • NSSA (Correct)

Answer : normal NSSA

Which of the following statements best describes the effect of the EIGRP neighbor command on an interface? (Select the best answer.)


Options are :

  • .It sends and receives unicast packets only. (Correct)
  • .It sends and receives multicast packets only.
  • It sends only unicast packets but receives both unicast and multicast packets.
  • .It sends and receives both unicast and multicast packets.

Answer : .It sends and receives unicast packets only.

400-101 CCIE Routing and Switching Written Practice Exam Set 9

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