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

Which of the following statements best describes poison reverse? (Select the best answer.)


Options are :

  • Poison reverse prevents switching loops.
  • Poison reverse prevents routing loops by advertising a route as unreachable to all devices.
  • Poison reverse prevents routing loops by advertising a route as unreachable to the interface from whichthe route was received. (Correct)
  • Poison reverse prevents routers from advertising a route through the same interface from which theroute was learned.

Answer : Poison reverse prevents routing loops by advertising a route as unreachable to the interface from whichthe route was received.

Which of the following LSA types is not accepted by an OSPF stub area? (Select the best answer.)


Options are :

  • .Type 4
  • .Type 1
  • .Type 2
  • .Type 3
  • .Type 5 (Correct)
  • .Type 6

Answer : .Type 5

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

You connect to a Cisco OSPF router by using an SSH session that you initiated from a host in a hotel business center. The host has an IP address of 192.168.55.55. You have enabled debugging output on the router so that you can troubleshoot a neighbor relationship issue. However, no debug messages appear in the SSH client's display window. Which of the following commands are you most likely to issue to solve the problem? (Select the best answer.)


Options are :

  • logging host 192.168.55.55
  • terminal monitor (Correct)
  • .show debug ip ospf events
  • debug ip ospf events

Answer : terminal monitor

By default, how often are MAC addresses flushed from the CAM table? (Select the best answer.)


Options are :

  • after five minutes of no activity from that address (Correct)
  • after 300 minutes of no activity from that address
  • .after 10 minutes of no activity from that address
  • after three minutes of no activity from that address

Answer : after five minutes of no activity from that address

Which of the following OSPFv3 LSA types is an intraareaprefix LSA? (Select the best answer.)


Options are :

  • Type 8
  • .Type 9 (Correct)
  • .Type 4
  • Type 3
  • Type 5

Answer : .Type 9

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

Which of the following can be monitored by the EEM IOSWDSysMon core event publisher? (Select the best answer.)


Options are :

  • abnormal stop events
  • counter thresholds
  • memory utilization (Correct)
  • timed events
  • .syslog messages

Answer : memory utilization

What is the default timer setting for the IGMPv2 group membership timeout? (Select the best answer.)


Options are :

  • one second
  • 255 seconds
  • 260 seconds (Correct)
  • 10 seconds

Answer : 260 seconds

Which of the following CHAP packets contains a Code field that is set to a value of 4? (Select the best answer.)


Options are :

  • Failure (Correct)
  • .Response
  • Success
  • Challenge

Answer : Failure

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

Which of the following DSCP values has a binary value of 101110? (Select the best answer.)


Options are :

  • EF (Correct)
  • CS1
  • AF42
  • AF11
  • AF23
  • CS5

Answer : EF

Which of the following statements are correct regarding EIGRP queries? (Select 2 choices.)


Options are :

  • EIGRP queries can propagate across ASes. (Correct)
  • EIGRP queries do not require replies
  • EIGRP queries can be contained by disabling route summarization.
  • EIGRP queries can be contained by creating stub routers. (Correct)

Answer : EIGRP queries can propagate across ASes. EIGRP queries can be contained by creating stub routers.

Which of the following queues has different default WTD threshold values than the other queues? (Select the best answer.)


Options are :

  • queue 3
  • queue 2 (Correct)
  • queue 4
  • queue 1

Answer : queue 2

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

Which of the following tunneling methods does Cisco recommend that you use for connecting several isolated IPv6 domains using point-to-multipoint links over an IPv4 backbone? (Select the best answer.)


Options are :

  • ISATAP
  • 6to4 (Correct)
  • IPv4-compatible
  • .GRE

Answer : 6to4

You are creating an account for a new administrator. The administrator should only be allowed to configure IP addresses and view the running configuration. Which of the following actions should you perform? (Select the best answer.)


Options are :

  • Configure the administrator's user account with a privilege level of 1.
  • Create a rolebased CLI view, and associate it with the administrator's user account. (Correct)
  • Create an ACL so that the administrator has access to the proper commands.
  • Configure the administrator's user account with a privilege level of 6.
  • Configure the administrator's user account with a privilege level of 15.

Answer : Create a rolebased CLI view, and associate it with the administrator's user account.

Which of the following are characteristics of GLBP? (Select 2 choices.)


Options are :

  • One router is elected as the active router, and another router is elected as the standby router
  • One router is elected as the master router, and all other routers are placed in the backup state.
  • .In a GLBP group, only one AVG can be assigned but multiple AVFs can be assigned.F. In a GLBP group, multiple AVGs can be assigned but only one AVF can be assigned. (Correct)
  • All routers in a GLBP group can participate by forwarding a portion of the traffic (Correct)
  • In a GLBP group, only one AVG and only one AVF can be assigned.

Answer : .In a GLBP group, only one AVG can be assigned but multiple AVFs can be assigned.F. In a GLBP group, multiple AVGs can be assigned but only one AVF can be assigned. All routers in a GLBP group can participate by forwarding a portion of the traffic

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

Which of the following EEM policy components determines whether the default action will be performed? (Select the best answer.)


Options are :

  • namespace import
  • body
  • exit status (Correct)
  • event register keyword

Answer : exit status

Which of the following methods can a router use to discover an Anycast RP? (Select the best answer.)


Options are :

  • static configuration, AutoRP, and BSR (Correct)
  • only AutoRP and BSR
  • only AutoRP
  • only static configuration
  • only BSR

Answer : static configuration, AutoRP, and BSR

Which of the following statements is true regarding Cisco IOS EPC? (Select the best answer.)


Options are :

  • Each capture point can be associated with multiple capture buffers.
  • The buffer type and sampling interval are the only settings you can adjust when creating a capture buffer.
  • The packet data contains a timestamp indicating when the packet was added to the buffer.
  • Multiple capture points can be active on a single interface. (Correct)

Answer : Multiple capture points can be active on a single interface.

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

Which of the following should you enable to configure lower-priority packets to be dropped if network congestion is detected? (Select the best answer.)


Options are :

  • RED
  • WRED (Correct)
  • FIFO
  • CAC

Answer : WRED

Which of the following statements is true regarding a microburst? (Select the best answer.)


Options are :

  • Reducing the buffer size will decrease the negative effects of a microburst.
  • A microburst is a small increase in traffic over a long period of time.
  • A microburst can result in tail drops. (Correct)
  • Microbursts typically result from the traffic sent from a single source.

Answer : A microburst can result in tail drops.

RouterA receives several routes to the 192.168.1.0/26 network. Each of the routes is received from a different routing protocol. Which of the following routes is installed in the routing table? (Select the best answer.)


Options are :

  • the route with the shortest prefix length
  • the route with the longest prefix length
  • the route with the highest AD
  • the route with the lowest AD (Correct)

Answer : the route with the lowest AD

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

You administer a router that contains five routes to the same network: an eBGP route, an ISIS route, a RIP route, an OSPF route, and an internal EIGRP route. The default ADs are used. Which route does the router prefer? (Select the best answer.)


Options are :

  • the eBGP route (Correct)
  • the RIP route
  • the OSPF route
  • the ISIS route

Answer : the eBGP route

You issue the show spanning-tree inconsistentports command on a switch and notice that interface Gi 1/3 is in a rootinconsistent state. Which of the following is the most likely reason for the inconsistent port? (Select the best answer.)


Options are :

  • Gi 1/3 is configured with root guard and has received an inferior BPDU.
  • Gi 1/3 is configured with loop guard and has received an inferior BPDU.
  • Gi 1/3 is configured with root guard and has received a superior BPDU. (Correct)
  • Gi 1/3 is configured with loop guard and has received a superior BPDU.

Answer : Gi 1/3 is configured with root guard and has received a superior BPDU.

Which of the following potential BGP enhancements were documented in the BGP AddPaths proposal? (Select the best answer.)


Options are :

  • possible modifications to the best-path algorithm
  • .possible addition of a four-octet Path Identifier (Correct)
  • possible software upgrades for PE routers
  • .possible addition of a session between a route reflector and its client

Answer : .possible addition of a four-octet Path Identifier

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

Which of the following connects more than two UNIs and enables each UNI to communicate with every other UNI in the configuration? (Select the best answer.)


Options are :

  • EPL
  • E-LAN (Correct)
  • E-Tree
  • EVPL

Answer : E-LAN

Which of the following protocols will be affected when you enable turbo flooding? (Select the best answer.)


Options are :

  • both TCP and UDP
  • .UDP but not TCP (Correct)
  • TCP but not UDP
  • neither TCP nor UDP

Answer : .UDP but not TCP

Which of the following routing protocols does not support MD5 authentication for secure route updates? (Select the best answer.)


Options are :

  • .BGP
  • OSP
  • RIPv1 (Correct)
  • EIGRP
  • .IS-IS

Answer : RIPv1

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

You are connecting host computers to a switch with 10/100/1000Mbps Gigabit Ethernet ports. All of the ports are configured to autonegotiate speed and duplex settings. Which of the following will cause a mismatch condition? (Select the best answer.)


Options are :

  • connecting a NIC that is configured to autonegotiate duplex and speed settings
  • connecting a NIC that is configured for fullduplex, 100Mbps operation (Correct)
  • connecting a NIC that is configured for halfduplex, 100Mbps operation
  • connecting a NIC that is configured for fullduplex, 1000Mbps operation

Answer : connecting a NIC that is configured for fullduplex, 100Mbps operation

Which of the following multicast addresses is used for RP-Discovery messages? (Select the best answer.)


Options are :

  • 224.0.0.2
  • 224.0.1.40 (Correct)
  • 224.0.0.102
  • 224.0.0.13
  • .224.0.1.39

Answer : 224.0.1.40

Which of the following statements are true regarding EIGRP metric calculations and bandwidth usage? (Select 2 choices.)


Options are :

  • Modifying bandwidth is preferred over modifying delay for influencing path selection.
  • The percentage of bandwidth utilized by EIGRP processes cannot be changed.
  • Modifying delay is preferred over modifying bandwidth for influencing path selection. (Correct)
  • By default, EIGRP bandwidth usage is limited to 75 percent of the configured interface bandwidth.
  • EIGRP uses the maximum bandwidth on the path to a destination and the next-hop delay in the calculation of metric weights.
  • EIGRP uses the minimum bandwidth on the path to a destination and the total delay in the calculation of metric weights. (Correct)

Answer : Modifying delay is preferred over modifying bandwidth for influencing path selection. EIGRP uses the minimum bandwidth on the path to a destination and the total delay in the calculation of metric weights.

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

By default, what will happen when you reboot a Cisco router if the startup configuration in NVRAM has become corrupted? (Select the best answer.)


Options are :

  • The startup configuration will be loaded from flash memory.
  • .A generic startup configuration will be loaded from ROM
  • The startup configuration will be loaded from a TFTP server.
  • The System Configuration Dialog will start. (Correct)

Answer : The System Configuration Dialog will start.

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

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