CCNP Practice Test | Troubleshooting IP Networks (TSHOOT)

Identify the static routing configuration issues that can occur. (Choose three)

A. The ip default route is configured and operational

B. CDP is running on the router

C. The router's ip route command is configured for an egress interface and not the next hop

D. There is a suboptimal AD configured

E. The router is configured to rely on proxy ARP and degrades performance

You execute the command "show ip route 10.1.1.1" and the response of the router is "% Subnet not in table." Which conclusion can be drawn from this response?

A. The host entry 10.1.1.1/32 is not in the routing table

B. There is no specific route in the routing table that matches the IP address 10.1.1.1

C. There is no route in the routing table that matches the IP address 10.1.1.1. All packets to that destination will be dropped

D. Packets to that destination might be forwarded by the default route, if it is present

E. The classful network 10.0.0.0 is not present in the routing table

When you issue the "show ip eigrp interfaces" command on a router, it lists interface FastEthernet 0/1, but it does not list interface FastEthernet 0/0. Which statement could be a possible explanation for the absence of interface FastEthernet 0/0?

A. None of the configured network statements matches the IP address of FastEthernet 0/0

B. The EIGRP is not enabled on the router

C. Interface FastEthernet 0/0 is not a feasible successor

D. There are no active EIGRP neighbors on interface FastEthernet 0/0

When troubleshooting Private Virtual Local Area Networks (PVLANs), which of the following statements accurately describe the process of associating a secondary VLAN with a primary VLAN? (Choose two)

A. Only one community VLAN can be mapped to a primary VLAN

B. Only one isolated VLAN can be mapped to a primary VLAN

C. More than one community VLAN can be mapped to a primary VLAN

D. More than one isolated VLAN can be mapped to a primary VLAN

Which statement is true regarding EIGRP and ensuring a loop-free path?

A. A loop-free path is ensured when the reported distance value from the neighbor is less than the feasible distance value.

B. A loop-free path is ensured by properly configuring STP to manage the physical path in a given network segment.

C. A loop-free path is ensured when the feasible distance value from the neighbor is less than the reported distance value.

D. A loop-free path is ensured by properly configuring RSTP to manage the physical path in a given network segment.

Refer to the Frame Relay hub-and-spoke network in the exhibit. Individual subinterfaces have not been configured for each remote site, so R1 uses a physical interface to connect to R2 and R3. R2 is not receiving routes for network 172.16.4.0/24 and R3 is not receiving routes for network 172.16.3.0/24. You examine the interface configurations on R1, R2, and R3. You then run the "debug ip eigrp" command on R1. R1 sees all of the routes, but does not pass them to R2 and R3. How can you ensure that all routes are advertised by R1?

$Refer to the Frame Relay hub-and-spoke network in the exhibit. Individual subinterfaces have not been configured for each remote site, so R1 uses a physical interface to connect to R2 and R3. R2 is not receiving routes for network 172.16.4.0/24 and R3 is not receiving routes for network 172.16.3.0/24. You examine the interface configurations on R1, R2, and R3. You then run the \$

A. Disable split horizon for EIGRP on router R1.

B. Configure unequal-cost load balancing on all three routers.

C. Configure hold-down timers on routers R2 and R3.

D. Disable route poisoning on router R1.

Routes are not being successfully redistributed into an Enhanced Interior Gateway Routing Protocol (EIGRP) autonomous system due to routes being filtered via a route-map. Which of the following commands do you use to locate the filter that causes the problem? (Choose three)

A. show running-config | include filter

B. show ip prefix-list

C. show route-map

D. show ip route

E. show ip eigrp topology

Which statements describe named EIGRP configuration? (Choose three)

A. Named EIGRP configuration is carried out in a number of configuration modes

B. Named EIGRP configuration is organized in a hierarchical manner

C. Named EIGRP configuration can increase the chances of configuration mistakes

D. Named EIGRP configuration uses the concept of address families

E. Named EIGRP configuration unifies IPv4 and IPv6 configuration

Identify the statements that describe the considerations for troubleshooting the Layer 3 routing process. (Choose three)

A. For any type of application that requires two-way communication, packets need to be tracked in both directions

B. When you find that there is no Layer 3 connectivity between two hosts, a good method is to track the path of the packet from router to router

C. Availability of the correct routing information and Layer 3 to Layer 2 mappings for packets traveling in one direction implies that the correct information is available for packets traveling in the other direction as well

D. Verify the availability of a Layer 3 to Layer 2 address mapping for the next hop for those technologies that require a Layer 2 address, such as Ethernet

E. When packets are traveling to their destination address, they use CDP to find the MAC address of the next hop router

Which two statements about RIP passive interfaces are true? (Choose two)

A. RIP uses the interface-passive command to configure an interface as passive.

B. Passive interfaces send routing updates, but will not accept routing updates.

C. Passive interfaces do not send routing updates, but will accept routing updates.

D. RIP uses the passive-interface default command to configure all interfaces as passive.

E. RIP passive interfaces work the same as EIGRP passive interfaces, but not OSPF passive interfaces.

Identify statements that describe access control list (ACL) configuration guidelines. (Choose two)

A. ACLs are created locally and then applied to inbound interfaces only

B. There can only be one access list per interface, per protocol, per direction

C. The last ACL statement is always an implicit "deny everything"; so every ACL must have a permit statement

D. The least specific ACL statements should be placed at the top of the list

The route a router is selecting to a destination network is taking an unexpected path. The network in question is known to more than one routing source and you know that different routing sources have different AD values, and lower values are preferred. Identify the options that can be used to confirm and resolve the issue. (Choose three)

A. Configure and apply a distribute list that prevents routing updates from one routing protocol to another

B. Use the show IPv6 route command to confirm static IPv6 routes in the routing table

C. Use the show ip route command to confirm static IPv4 routes in the routing table

D. Configure and apply an access-list to the routing protocol process containing the higher AD

E. Use the show cdp neighbours detail command to confirm the routing protocols running on the router

Identify statements that describe EIGRP for IPv4 and EIGRP for IPv6 neighborships. (Choose two)

A. EIGRP IPv6 routers do not need to be in the same subnet to form an adjacency

B. EIGRP IPv4 routers can be configured with an incorrect network statement preventing neighborship

C. IPv4 neighborship issues such as a passive interface can be confirmed using the show ipv6 protocols command

D. IPv6 neighbors that are not sharing a common subnet will not form a neighborship

You need to troubleshoot an issue with a GRE tunnel that you have recently configured. Which three items identify common GRE issues that you should verify as part of the troubleshooting process? (Choose three)

A. The GRE source IP address is not reachable by the remote host.

B. IP protocol 47 is blocked by an ACL.

C. Recursive routing is not functioning as desired.

D. The MTU value is set too low.

E. The GRE tunnel is connecting discontinuous subnetworks.

Why might traffic not be routed between two virtual LANs, or VLANs, on a multilayer switch configured with Switched Virtual Interfaces (SVIs)? (Choose three)

A. The IP address assigned to the SVI is incorrect

B. A VLAN associated with the SVI is incorrect

C. A VLAN is mapped to an SVI that has been created on the switch

D. The SVI that is mapped to a VLAN does not have any active ports

Which three statements concerning troubleshooting VRF Lite are true? (Choose three)

A. The third octet in the router ID references the router number and the fourth octet references VRF instance.

B. The router ospf 1 vrf command configures OSPF process 1 for a VRF instance.

C. IOS automatically deletes any preconfigured IP address when assigning VRF to the interface.

D. The same router ID is configured for each instance of OSPF per VRF on the same router.

E. A VRF includes an IP routing table and a derived forwarding table.

You notice that IPv4 traffic cannot be sent or received from devices connected off of a router interface using the ping command. The router interface is unable to determine its IPv4 address using DHCP via the show interfaces brief output. Why is the router unable to determine its IP address? (Choose two)

A. Pings are being blocked by an access list

B. The ingress interface on the next-hop router is not configured

C. The "shutdown" command was used on the egress interface

D. The interface is not configured with the DHCP address

Why would a Generic Routing Encapsulation (GRE) tunnel not be passing traffic as expected? (Choose three)

A. The GRE traffic is not being fragmented

B. The GRE source or destination IP address is not reachable by remote host

C. Recursive routing is preventing the passing of GRE traffic

D. An access control list (ACL) is preventing the GRE traffic

E. The GRE tunnel is carrying AppleTalk traffic

Which of the following statements describe the issues that can occur with GLBP operations? (Choose three)

A. A different GLBP group number has been configured on each GLBP device

B. The client's default gateway does not match the virtual IP address being serviced by the GLBP group

C. The virtual IP addresses have been configured to match for all devices participating in the GLBP group

D. The text authentication strings match on the router and in the incoming packet

E. A router configured with a higher priority has its priority decremented due to interface tracking

Refer to the partial network topology in the exhibit. A trouble ticket has been opened indicating the user at PC3 is unable to access any resources on the network or the Internet. Issuing the "ipconfig /all" command on PC3 reveals the client is using an APIPA address. After confirming other configurations for the client and verifying that other clients connected to ASW1 are not having the same issue, you run the show commands given below on ASW1.
What should you do to fix the trouble ticket and provide PC3 with access to resources on the network and Internet?

$Refer to the partial network topology in the exhibit. A trouble ticket has been opened indicating the user at PC3 is unable to access any resources on the network or the Internet. Issuing the \$ What should you do to fix the trouble ticket and provide PC3 with access to resources on the network and Internet?" title="Refer to the partial network topology in the exhibit. A trouble ticket has been opened indicating the user at PC3 is unable to access any resources on the network or the Internet. Issuing the \"ipconfig /all\" command on PC3 reveals the client is using an APIPA address. After confirming other configurations for the client and verifying that other clients connected to ASW1 are not having the same issue, you run the show commands given below on ASW1.
What should you do to fix the trouble ticket and provide PC3 with access to resources on the network and Internet?" />

A. Issue the spanning-tree portfast command in interface configuration mode for port Fa0/3 on ASW1.

B. Issue the switchport access vlan 10 command in interface configuration mode for port Fa0/3 on ASW1.

C. Issue the switchport mode access command in interface configuration mode for port Fa0/3 on ASW1.

D. Issue the vlan 10 command in global configuration mode on ASW1.

Networks are not successfully advertised between iBGP peers and you discover it is because the iBGP split-horizon rule is preventing iBGP-learned routes to pass to a downstream iBGP neighbor. How can this issue be resolved?

A. Build a full mesh topology of iBGP peers

B. Build a full mesh topology of any RIPv2 routers

C. Disable the split-horizon feature on the BGP router interface

D. Disable the split-horizon rule on all iBGP routers

The output of the "show ip bgp summary" command displays "Active" as the state of a neighbor. What does this mean?

A. BGP is attempting to establish a TCP session to the neighbor, but has not succeeded yet

B. This is the state that a peering relationship is in when the router sees its own router ID listed in the active peer list in the hello packets received from that peer

C. BGP has lost the best route in the BGP table for a prefix and is attempting to find a backup route via a query and reply process

D. The peering session has been established and the routers are actively exchanging routes

You are troubleshooting OSPFv2 neighborships and suspect that a mismatch of OSPF area-types between the routers participating in the same area is preventing neighborship. What commands can you use to confirm your suspicions? (Choose two)

A. show ip ospf border-routers

B. show ip protocols

C. show ip ospf interface interface-id

D. traceroute

Which command is used to display comprehensive details of the OSPF parameters and the operational sate for the specified interface, including hello and dead timer values that could prevent a neighbor relationship from being established?

A. show ip ospf database external subnet

B. show ip ospf interface brief

C. show ip ospf database summary subnet

D. show ip ospf interface interface-id

Which of the following statements describe the common issues that occur when redistributing into Open Shortest Path First version 2 (OSPFv2)? (Choose three)

A. A route-map denies redistributed subnets into OSPFv2

B. Routes are not successfully being redistributed into an OSPF autonomous system because the OSPF area has been configured as a not-so-stubby area (NSSA)

C. Routers are not using the nearest autonomous system boundary router (ASBR) to exit the OSPF autonomous system because OSPF E2 routes are being generated by another ASBR with a better metric

D. Most routes intended to be redistributed into OSPFv2 are failing to show up as external routes because the subnets keyword was left out of a redistribute configuration statement

What are the differences between BPDUFilter and BPDUGuard when receiving a Bridge Protocol Data Unit, or BPDU? (Choose two)

A. BPDUFilter, when configured in the interface mode, ignores the BPDU, while BPDUGuard blocks the BPDU

B. Both tools put the port into the error-disable mode

C. There is no difference upon receiving a BPDU. The difference is upon sending a BPDU

D. BPDUFilter, when configured in global config, turns the port into the default mode, while BPDUGuard sets the port to the error-disable mode

Identify the static IPv6 routing configuration issues that can occur. (Choose three)

A. CDP is running on the router

B. The ND cache limit has been increased

C. The routers static route is configured for an egress interface and not the next hop IPv6 address

D. A Neighbor Discover Protocol (NDP) exhaustion issue

E. There is a suboptimal AD configured

What are the common issues that can arise with spoofing mitigation? (Choose three)

A. A device is poisoning the default gateway Address Resolution Protocol (ARP) cache entry on clients in the network even though Dynamic ARP Inspection (DAI) is configured

B. DHCP snooping has been globally enabled

C. DHCP snooping has not been associated with the correct virtual LANs (VLANs)

D. A rogue DHCP server is able to distribute rogue addressing information

E. IP source guard was configured, thereby preventing IP address spoofing

Host B receives an ARP request frame that includes the IP address of Host A. What will Host B do with that information? (Choose two)

A. Record the IP address and MAC address of Host A in its own ARP cache

B. Send an ARP reply as a unicast back to Host A

C. Send out an ARP request as a broadcast to the destination address ff:ff:ff:ff:ff:ff

D. Associate the IP address with a port and a VLAN

What would cause Network Time Protocol, or NTP, to not provide the correct time to network devices? (Choose three)

A. An access control list, or ACL, is blocking the NTP port 23

B. The NTP server is not in sync

C. The time server is located on an external network

D. NTP is configured for authentication

E. There is a high offset between an NTP server and client

What options are considered in Layer 3 EtherChannel operational issues? (Choose three)

A. Inconsistencies between the devices on both sides of the EtherChannel

B. The port channel was created before the switch ports were assigned to the channel

C. Underutilized links in the channel

D. Inconsistencies between the physical ports that are members of the channel

OSPFv3 has been recently deployed on your network to support IPv6. You are in the process of troubleshooting an issue related to the OSPFv3 implementation. Which two statements identify key differences between OSPFv2 and OSPFv3 functionality? (Choose two)

A. OSPFv3 protocol processing is performed on a per-subnet basis.

B. Multiple OSPFv3 instances are supported per link.

C. Link-local addresses are used for OSPFv3 packets sent between neighbors.

D. The OSPFv3 router ID is generated using the IPv6 address format.

Traffic sourced from various IP addresses in the network is not originating from the devices that have been assigned those IP address. You suspect that it may be an IP source guard issue. How can you further investigate this issue? (Choose three)

A. Ensure that port security is not enabled and running on the interface if filtering by both IP and MAC addresses

B. Verify if IP source guard recognizes the IP addresses on the interfaces with the show ip verify source command

C. Verify that Dynamic Host Configuration Protocol, or DCHP, snooping is enabled with the show ip dhcp snooping command

D. Verify that IP source guard is enabled for the correct VLANs using the show ip arp inspection vlan command

E. Verify IP source guard configuration on the switch using the show ip verify source command

You enable timestamps for syslog messages on a router. When reviewing the logs, you see the following output:

.Mar 22 2014 23:13:25 ADT: %SYS-5-CONFIG_I: Configured from console by console

Which statement is true concerning this output?

A. The time is not authoritative and the software clock has not been set.

B. The time is not authoritative and the software clock is not in sync with the configured NTP servers.

C. The time is authoritative but the NTP is not synchronized.

D. The time is authoritative and the software clock is in sync.

You discover that the election of all root bridges in each of your VLANs is based solely on MAC addresses. How can you control which switch will become the root bridge in your VLANs?

A. Assign a shorter forward delay time on the switch that should serve as the root bridge.

B. Assign a shorter hello time on the switch that should serve as the root bridge.

C. Assign a low cost to the sender port of each switch.

D. Assign a low priority to the switch that should serve as the root bridge.

Identify statements that describe issues that can occur with BGP routing updates. (Choose three)

A. The iBGP split-horizon rule is preventing iBGP-learned routes to pass to a downstream iBGP neighbor

B. The transit subnet between two ASs have been advertised into the IGP of the AS

C. The next hop IP address is unknown due to it being part of a transit subnet between two ASs and left unadvertised in the IGP

D. The network command does not match an exact prefix in the local routing table

E. A full mesh of iBGP peers has been built and configured

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