400-101 CCIE Routing and Switching Written Practice Exam Set 3

Which of the following configuration management tools are aligned more closely with the needs of system administrators? (Select 2 choices.)


Options are :

  • Salt (Correct)
  • Puppet
  • Chef
  • Ansible (Correct)

Answer : Salt Ansible

Which of the following EIGRP commands is the most likely to cause a previously established adjacency to disappear in a multicast environment? (Select the best answer.)


Options are :

  • network 10.10.9.0 0.0.0.3
  • router eigrp 6
  • network 10.10.10.0
  • neighbor 10.10.11.1 FastEthernet 0/0 (Correct)

Answer : neighbor 10.10.11.1 FastEthernet 0/0

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

You issue the following command on a Cisco router: ip route vrf ce1 10.10.10.0 255.255.255.0 172.16.0.1 Upon testing the configuration, you discover that the 172.16.0.1 gateway appears in the global routing table but not in VRF ce1. Therefore, the static route you have configured is not functioning. Which of the following could you do to correct the problem? (Select the best answer.)


Options are :

  • .Reissue the command with the permanent keyword.
  • .Reissue the command with the global keyword. (Correct)
  • Reissue the command without the vrf keyword.
  • Issue the no form of the command.

Answer : .Reissue the command with the global keyword.

You issue the spanning-tree guard root command on the FastEthernet 0/1 port of a switch. Which of the following occurs when the FastEthernet 0/1 port receives an inferior BPDU? (Select the best answer.)


Options are :

  • The port becomes the root port.
  • The port continues to be a designated port (Correct)
  • The port transitions to the rootinconsistent state.
  • The port transitions to the errdisable state.

Answer : The port continues to be a designated port

Which of the following statements are true regarding VLANs 1002 through 1005? (Select 2 choices.)


Options are :

  • These VLANs cannot be pruned by VTP. (Correct)
  • These VLANs are extended-range VLANs.
  • These VLANs are supported by VTPv2. (Correct)
  • These VLANs can be used to send data over Ethernet.

Answer : These VLANs cannot be pruned by VTP. These VLANs are supported by VTPv2.

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

Which of the following DSCP PHBs is designed to be backward compatible with IP precedence values? (Select the best answer.)


Options are :

  • AF, CS, and EF
  • CS (Correct)
  • AF
  • EF

Answer : CS

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


Options are :

  • Traffic policing buffers excess traffic.
  • Traffic policing is typically performed at the CE device.
  • Traffic policing does not change in response to network conditions. (Correct)
  • Traffic policing creates queuing delay.
  • .Traffic policing is applied to inbound and outbound traffic. (Correct)

Answer : Traffic policing does not change in response to network conditions. .Traffic policing is applied to inbound and outbound traffic.

Which of the following commands configures a router as an AutoRP mapping agent? (Select the best answer.)


Options are :

  • ip pim rpaddress
  • .ip pim send-rp-announce
  • .ip pim send-rp-discovery (Correct)
  • ip pim autorp listener

Answer : .ip pim send-rp-discovery

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

Which of the following statements best describes the IEEE 802.1s standard? (Select the best answer.)


Options are :

  • The 802.1s standard always creates a single spanning tree instance for a network.
  • The 802.1s standard increases the speed of transitioning a switch port to the forwarding state.
  • The 802.1s standard can be used to create a spanning tree instance for each group of VLANs. (Correct)
  • The 802.1s standard always creates a spanning tree instance for each VLAN.

Answer : The 802.1s standard can be used to create a spanning tree instance for each group of VLANs.

Which of the following OSPFv3 LSAs indicate whether a router is on one end of a virtual link? (Select the best answer.)


Options are :

  • Type 2
  • .Type 1 (Correct)
  • Type 3
  • Type 4

Answer : .Type 1

For which of the following applications does Cisco recommend that SSM be used? (Select the best answer.)


Options are :

  • many-to-one applications
  • one-to-many applications (Correct)
  • many-to-many applications
  • few-to-few applications

Answer : one-to-many applications

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

Which of the following routes from the show ip route command was learned from a Type 3 or Type 4 LSA? (Select the best answer.)


Options are :

  • O 172.17.2.0/24 [110/74] via 10.1.2.3, 00:00:23, FastEthernet1/0
  • .O IA 172.17.3.0/24 [110/74] via 10.1.2.3, 00:00:23, FastEthernet1/0 (Correct)
  • O E1 172.17.1.0/24 [110/74] via 10.1.2.3, 00:00:23, FastEthernet1/0
  • C 172.17.4.0/24 is directly connected, FastEthernet1/1

Answer : .O IA 172.17.3.0/24 [110/74] via 10.1.2.3, 00:00:23, FastEthernet1/0

You issue the show ip route command on RouterA and receive the following partial output: O 10.20.0.0/28 [110/64] via 192.168.10.1, 00:02:38, Serial0/1 R 10.20.0.0/24 [120/3] via 192.168.10.3, 00:33:38, Serial0/3 D 10.20.0.0/20 [90/2809856] via 192.168.10.4, 00:02:14, Serial0/4 S 10.20.0.0/16 [1/0] via 192.168.10.2 RouterA receives a packet that is destined for 10.20.0.17. To which nexthop IP address will RouterA send the packet? (Select the best answer.)


Options are :

  • 192.168.10.4
  • 192.168.10.2
  • 192.168.10.3 (Correct)
  • 192.168.10.1

Answer : 192.168.10.3

Which of the following uses YANG as a data modeling language? (Select the best answer.)


Options are :

  • KVM
  • OpenStack
  • NETCONF (Correct)
  • SNMP

Answer : NETCONF

400-101 CCIE Routing and Switching Written Practice Exam Set 5

Which of the following fields in an MPLS label does a Cisco router use to carry the IP precedence value of a packet? (Select the best answer.)


Options are :

  • TTL
  • .Label
  • .Bottom-of-Stack
  • .TC (Correct)

Answer : .TC

Which of the following services are not typically provided by a PaaS vendor? (Select the best answer.)


Options are :

  • database platforms
  • operating systems
  • network infrastructure
  • software applications (Correct)

Answer : software applications

In a threenode OpenStack architecture, which node or nodes contain Keystone, Glance, and Neutron Server? (Select the best answer.)


Options are :

  • the controller node and the compute node
  • the compute node
  • the controller node (Correct)
  • the network node

Answer : the controller node

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

You administer an EIGRP network with a main office and several branch locations. You install RouterS in a branch location and configure connectivity to RouterMain. You issue the eigrp stub command on RouterS. Which of the following statements are true? (Select 2 choices.)


Options are :

  • RouterMain will advertise all routes to RouterS (Correct)
  • RouterMain will advertise a summary route to RouterS
  • RouterMain will advertise no routes to RouterS.
  • RouterS will advertise summary and directly connected routes to RouterMain. (Correct)

Answer : RouterMain will advertise all routes to RouterS RouterS will advertise summary and directly connected routes to RouterMain.

You have just issued the multilink bundle-name authenticated command. Which of the following statements is true regarding this configuration? (Select the best answer.)


Options are :

  • The user name will always be used to create the bundle name.
  • The user name will be used to create the bundle name only if no endpoint discriminator is supplied.
  • Both the user name and the endpoint discriminator will be used to create the bundle name.
  • The endpoint discriminator will be used to create the bundle name only if the link is not authenticated. (Correct)

Answer : The endpoint discriminator will be used to create the bundle name only if the link is not authenticated.

You issue the mls ip cef loadsharing full excludeport destination command. Which of the following ports and addresses are excluded from the CEF load balancing algorithm? (Select 2 choices.)


Options are :

  • only destination Layer 3 addresses
  • source and destination Layer 4 ports
  • only destination Layer 4 ports (Correct)
  • source and destination Layer 3 addresses (Correct)

Answer : only destination Layer 4 ports source and destination Layer 3 addresses

400-101 CCIE Routing and Switching Written Practice Exam Set 3

Which of the following TCP features can cause TCP starvation in a network with a large amount of UDP traffic and no QoS mechanism? (Select the best answer.)


Options are :

  • selective acknowledgment
  • MSS adjustment
  • window scaling
  • sliding window (Correct)

Answer : sliding window

400-101 CCIE Routing and Switching Written Practice Exam Set 2

Which of the following statements is correct regarding an MPLS VPN super backbone that connects a customer's OSPF network? (Select the best answer.)


Options are :

  • Only one Area 0 backbone can be used on a customer's OSPF network and must not be connected to the MPLS VPN super backbone.
  • Only one Area 0 backbone can be used on a customer's OSPF network and must be connected to the MPLS VPN super backbone.
  • The Area 0 backbone cannot be used on a customer's OSPF network because the backbone area is replaced by the MPLS VPN super backbone.
  • Multiple Area 0 backbones can be used on a customer's OSPF network, but all must be connected to the MPLS VPN super backbone. (Correct)

Answer : Multiple Area 0 backbones can be used on a customer's OSPF network, but all must be connected to the MPLS VPN super backbone.

How long does it take for a PIM network to converge after the failure or addition of an Anycast RP? (Select the best answer.)


Options are :

  • as soon as an administrator manually reconfigures the RPs
  • between one and two minutes
  • about a second
  • as quickly as unicast routing converges (Correct)

Answer : as quickly as unicast routing converges

Which of the following addresses are not used by EIGRPv6 to form neighbor relationships? (Select the best answer.)


Options are :

  • addresses in different subnets
  • addresses in the same subnet
  • global addresses (Correct)
  • link-local addresses

Answer : global addresses

400-101 CCIE Routing and Switching Written Practice Exam Set 3

You want to ensure that a route in a VRF named ce1 uses the default gateway address of 172.16.0.1, which is commonly accessible from all other addresses on the router but does not exist in the ce1 table. Which of the following commands should you issue? (Select the best answer.)


Options are :

  • ip route vrf 0.0.0.0 0.0.0.0 172.16.0.1 permanent
  • ip route 0.0.0.0 0.0.0.0 172.16.0.1 permanent
  • ip route vrf ce1 0.0.0.0 0.0.0.0 172.16.0.1 global (Correct)
  • ip route vrf 0.0.0.0 0.0.0.0 172.16.0.1 global
  • ip route 0.0.0.0 0.0.0.0 172.16.0.1 global

Answer : ip route vrf ce1 0.0.0.0 0.0.0.0 172.16.0.1 global

Which of the following best defines an RD? (Select the best answer.)


Options are :

  • a path that labeled packets take through an MPLS network
  • a value that enables RFC 4364 VPN customers to use overlapping IP address ranges (Correct)
  • a routing table instance for a VPN
  • a value that indicates membership in an RFC 4364 VPN

Answer : a value that enables RFC 4364 VPN customers to use overlapping IP address ranges

Which of the following commands would you issue to create a unique identifier for a DHCP client that uses Ethernet and that has a MAC address of aaaa.bbbb.cccc? (Select the best answer.)


Options are :

  • client-identifier aaaa.bbbb.cccc
  • client-identifier aaaa.bbbb.cccc.01
  • client-identifier 01aa.aabb.bbcc.cc (Correct)
  • hardware-address aaaa.bbbb.cccc

Answer : client-identifier 01aa.aabb.bbcc.cc

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

You are configuring EEM on a router. You have issued the event ioswdsysmon sub1 cpuproc taskname Task1 op ge val 90 period 20 command to trigger an action when the processor usage exceeds 90 percent over a 20second period. You want to configure the router to change the IP address of the s0/0 interface when this event is triggered. Which of the following commands should you issue? (Select the best answer.)


Options are :

  • action cli (Correct)
  • action force-switchover
  • action ipaddress
  • action info

Answer : action cli

Which of the following statements best describes holddown timers? (Select the best answer.)


Options are :

  • Holddown timers suppress information regarding a better path to a route for a specified period oftime. (Correct)
  • Holddown timers prevent switching loops.
  • Holddown timers prevent routing loops by advertising a route as unreachable to all devices.
  • Holddown timers prevent routing loops by advertising a route as unreachable to the interface fromwhich the route was received.
  • Holddown timers prevent routers from advertising a route through the same interface from which theroute was learned.

Answer : Holddown timers suppress information regarding a better path to a route for a specified period oftime.

You issue the following commands from OSPF router configuration mode on RouterA: timers throttle lsa all 500 10000 40000 timers lsa arrival 2000 Fo how long will RouterA ignore identical LSAs that are received from a neighborrouter? (Select the best answer.)


Options are :

  • 10 seconds
  • 40 seconds
  • One-half second
  • two seconds (Correct)

Answer : two seconds

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

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