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QUESTION 142
Which protocol specified by RFC 2281 provides network redundancy for IP networks, ensuring that user traffic immediately and transparently recovers from first-hop failures in network edge devices or access circuits?
A. STP
B. IRDP
C. ICMP
D. HSRP
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 143
A medium-sized network with a redundant topology that uses core and access switches is experiencing intermittent end-station accessibility. The root bridge is on one of the core switches. It is determined that the problem occurs during STP convergence and that accessibility issues depend on the STP state of the individual switch port. What is the best way to decrease STP convergence time in this situation?
A. Enable PortFast on the core switches to accelerate the choice of a new root port.
B. Enable UplinkFast on the VLAN that is having the most accessibility problems.
C. Enable UplinkFast on the wiring closet switches at the edge of the network.
D. Enable PortFast on all IOS based switches that have been configured for bridge priority.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 144
Refer to the exhibit. On the basis of the information that is generated by the show commands, which two EtherChannel statements are true? (Choose two.)
A. Interfaces FastEthernet 0/1 and 0/2 have been configured with the channel-group 1 mode desirable command.
B. Interfaces FastEthernet 0/3 and 0/4 have been configured with the no switchport command.
C. Interface Port-Channels 1 and 2 have been assigned IP addresses with the ip address commands.
D. Port-Channels 1 and 2 are providing two 400 Mbps EtherChannels.
E. Port-Channels 1 and 2 are capable of combining up to 8 FastEthernet ports to provide full-duplex bandwidth of up to 16 Gbps between a switch and another switch or host.
F. Switch SW1 has been configured with a Layer 3 EtherChannel.
Correct Answer: AD Section: (none) Explanation
Explanation/Reference:
QUESTION 145
Which two table types are CEF components?(Choose two.)
A. forwarding information base
B. adjacency tables
C. neighbor tables
D. caching tables
E. route tables
Correct Answer: AB Section: (none) Explanation
Explanation/Reference:
QUESTION 146
Refer to the exhibit. All switches are connected using FastEthernet links. Given the information in the exhibit, which two statements are true? (Choose two.)
A. Switch S1 is the root bridge.
B. Switch S2 is the root bridge.
C. Switch S3 is the root bridge.
D. Port 1/2 on switch S1 is a nondesignated port.
E. Port 1/2 on switch S2 is a nondesignated port.
F. Port 1/2 on switch S3 is a nondesignated port.
Correct Answer: AF Section: (none) Explanation Explanation/Reference:
QUESTION 147
Refer to the exhibit. The DLSwitch is a Catalyst 3550 and the ALSwitch is a Catalyst 2950. Which two configurations sequence would be used to establish an EtherChannel group? (Choose two.)
A. ALSwitch(config)# interface range fa 0/1 – 2ALSwitch(config-if)# channel-group 1 mode desirable
B. ALSwitch(config)# interface range fa 0/1 – 2ALSwitch(config-if)# channel-protocol pagpALSwitch (config-if)# channel-group 1 mode desirable
C. ALSwitch(config)# interface range fa 0/1 – 2ALSwitch(config-if)# channel-protocol lacpALSwitch(config-if)# channel-group 1 mode desirable
D. DLSwitch(config)# interface range fa 0/1 – 2DLSwitch(config-if)# channel-group 1 mode auto
E. DLSwitch(config)# interface range fa 0/1 – 2DLSwitch(config-if)# channel-protocol pagpDLSwitch (config-if)# channel-group 1 mode auto
F. DLSwitch(config)# interface range fa 0/1 – 2DLSwitch(config-if)# channel-protocol lacpDLSwitch(config-if)# channel-group 1 mode desirable
Correct Answer: BE Section: (none) Explanation
Explanation/Reference:
QUESTION 148
Which two statements are true about a switched virtual interface (SVI)? (Choose two.)
A. An SVI is created by entering the no switchport command in interface configuration mode.
B. An SVI is created for the default VLAN (VLAN1) to permit remote switch administration by default.
C. An SVI provides a default gateway for a VLAN.
D. Multiple SVIs can be associated with a VLAN.
E. SVI is another name for a routed port.
Correct Answer: BC Section: (none) Explanation
Explanation/Reference:
QUESTION 149
Refer to the exhibit. A network engineer is trying to prevent VLAN attacks. Ports 0/20 – 24 are not currently used on switch Cat2. VLAN 50 is an unused VLAN. How does the configuration in the exhibit improve security on the switch Cat2?
A. The native VLAN is different from any data VLAN.
B. Trunking is negotiated rather than on.
C. DTP is turned off.
D. The ports have been configured as a primary PVLAN.
E. The ports have been configured as a secondary PVLAN.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 150
Which three IP addresses are valid multicast addresses? (Choose three.)
A. 169.254.23.59
B. 223.254.255.254
C. 225.1.1.1
D. 227.43.34.2
E. 238.3.3.3
F. 249.1.2.3
Correct Answer: CDE Section: (none) Explanation
Explanation/Reference: QUESTION 151
When IP multicast is enabled via PIM, which mode uses the flood and prune method?
A. PIM sparse-dense
B. Bidir-PIM
C. PIM-RP
D. PIM-DM
E. PIM-SM
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 152
Refer to the exhibit. On the basis of the show ip pim interface count output, which interface or interfaces will receive and forward multicast traffic?
A. interface Vlan10 only
B. interfaces Vlan11 and Vlan12
C. interfaces Vlan10, Vlan11, and Vlan12
D. interfaces Vlan23 and Vlan24
E. all interfaces
F. none of the interfaces
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 153
Refer to the exhibit. LACP has been configured on Switch1 as shown. Which is the correct command set to configure LACP on Switch2?
A. Switch2# configure terminalSwitch2(config)# interface range gigabitethernet3/1 -2Switch2(config-if)# channel-group 5 mode auto
B. Switch2# configure terminalSwitch2(config)# interface range gigabitethernet3/1 -2Switch2(config-if)# channel-group 5 mode passive
C. Switch2# configure terminalSwitch2(config)# interface range gigabitethernet3/1 -2Switch2(config-if)# channel-group 5 mode desirable
D. Switch2# configure terminalSwitch2(config)# interface range gigabitethernet3/1 -2Switch2(config-if)# channel-group 5 mode on
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 154
Refer to the exhibit. Given the output of a debug ip mrouting command, which two statements are true? (Choose two.)
A. This router received an IGMP host report from a group member or a PIM join message.
B. The reverse path forwarding (RPF) for the route 224.2.0.1 failed to find the interface on which the multicast packet was received.
C. Multicast route to 10.16.0.0/16 was added to the mroute table and created by a source directly connected to the router.
D. Multicast route to 224.69.15.0/24 was added to the mroute table and created by a source directly connected to the router.
E. The route to 224.69.15.0/24 will be out Ethernet 0.
Correct Answer: AC Section: (none)
Explanation
Explanation/Reference:
QUESTION 155
What is a characteristic of a static VLAN membership assignment?
A. VMPS server lookup
B. easy to configure
C. ease of adds, moves, and changes
D. based on MAC address of the connected device
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 156
Which technology manages multicast traffic at Layer 2 by configuring Layer 2 LAN interfaces dynamically to forward multicast traffic only to those interfaces that want to receive it?
A. IGMP
B. IGMP snooping
C. PIM-DM
D. DVMRP
E. MOSPF
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 157
Given the following configuration on a switch interface, what happens when a host with the MAC address of 0003.0003.0003 is directly connected to the switch port? switchport mode access switchport port-security switchport port-security maximum 2 switchport port-security mac-address 0002.0002.0002 switchport port-security violation shutdown
A. The port will shut down.
B. The host will be allowed to connect.
C. The host will be refused access.
D. The host can only connect through a hub/switch where 0002.0002.0002 is already connected.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 158
Switch C is configured with UplinkFast. How much time will expire after a failure in L2 before switch C activates the port connected to L3?
A. 1-5 seconds
B. 15 seconds
C. 30 seconds
D. 50 seconds
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 159
Which two statements are true about the UplinkFast feature? (Choose two.)
A. It must be used with the PortFast feature enabled.
B. When enabled, it is enabled for the entire switch and all VLANs.
C. It should be configured on all switches, including the Root Bridge.
D. When the primary Root Port uplink fails, another blocked uplink can be immediately brought up for use.
Correct Answer: BD Section: (none) Explanation
Explanation/Reference:
QUESTION 160
Which enhancement was added to IGMP version 3?
A. membership query message
B. membership report message
C. leave group message
D. source filtering
E. destination filtering
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 161
Refer to the exhibit. A network engineer is trying to connect to the console port of Sw2. What authentication process will the switch go through?
A. Authentication will fail because SmartPort has not been enabled.
B. Authentication will fail because an IP address has not been specified for the SmartPort database.
C. The switch will contact the TACACS+ server. If the TACACS+ server is unreachable, the switch will use the local database.
D. The switch will attempt to authenticate using the enable secret password. If this fails, the switch will contact the TACACS+ server. If the TACACS+ server is unreachable, the switch will use the password goaway.
E. The switch will contact the SmartPort database. If the SmartPort database is unreachable, the switch will contact the TACACS+ server. If the TACACS+ server is unreachable, the switch will use the local database.
F. The switch will contact the SmartPort database. If the SmartPort database is unreachable, the switch will contact the TACACS+ server. If the TACACS+ server is unreachable, the switch will use the enable secret password.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 162
Which option correctly identifies the Cisco IOS switching methods in descending order from the fastest method to the slowest method?
A. CEF, distributed CEF (dCEF), fast switching, process switching
B. distributed CEF (dCEF), CEF, fast switching, process switching
C. fast switching, process switching, distributed CEF (dCEF), CEF
D. process switching, fast switching, distributed CEF (dCEF), CEF
E. process switching, distributed CEF (dCEF), CEF, fast switching
F. process switching, CEF, distributed CEF (dCEF), fast switching
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 163
In the use of 802.1X access control, which three protocols are allowed through the switch port before authentication takes place? (Choose three.)
A. STP
B. CDP
C. EAP MD5
D. TACACS+
E. EAP-over-LAN
F. protocols not filtered by an ACL
Correct Answer: ABE Section: (none) Explanation
Explanation/Reference:
QUESTION 164
Which three statements are true of the Port Aggregation Protocol (PAgP)? (Choose three.)
A. PAgP is a standards-based protocol defined in IEEE 802.3ad.
B. PAgP is used to connect to non-Cisco devices.
C. PAgP packets are sent with the command channel-group 1 mode desirable.
D. PAgP does not require the STP costs to be the same in order to form an EtherChannel.
E. An Etherchannel link will form if one end of the channel is configured as active and the other end as passive mode.
F. An Etherchannel link will form if one end of the channel is configured as auto and the other end as desirable mode.
Correct Answer: CDF Section: (none) Explanation
Explanation/Reference:
QUESTION 165
Which command will ensure that External_B will be the primary router for traffic using the gateway address of 172.16.15.20?
A. On External_B add the command standby 1 priority 80.
B. On External_A add the command standby 1 priority 110.
C. On External_A add the command standby 1 priority 80.
D. On External_B remove the command standby 1 preempt
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 166
Which two statements characterize VLANs? (Choose two.)
A. All hosts in the same VLAN are in the same broadcast domain.
B. All hosts in the same VLAN are in the same collision domain.
C. VLAN membership is based upon port membership or assigned dynamically based on MAC.
D. It is a physical network segment.
E. They must be created in the vlan database mode on all IOS and Cat OS based Catalyst Switches.
Correct Answer: AC Section: (none) Explanation
Explanation/Reference:
QUESTION 167
What must be configured on a Cisco switch in order to advertise VLAN information?
A. VTP password
B. VTP domain name
C. VTP revision number
D. VTP mode
E. VTP pruning
Correct Answer: BD Section: (none) Explanation
Explanation/Reference:
QUESTION 168
Which statement about VTP is false?
A. Switches in VTP transparent mode will simply forward advertisements without processing them.
B. VTP reduces administrative overhead.
C. VTP pruning reduces overall network traffic.
D. VTP pruning is on by default.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 169
Which two statements are true about Cisco Express Forwarding (CEF) operation? (Choose two.)
A. CEF supports per packet load balancing.
B. The CEF switching process can perform packet fragmentation.
C. CEF processed packets forwarded to a tunnel interface create separate lookup table entries.
D. access control lists should be avoided when utilizing CEF because they cause the forwarding decision to bypass CEF and use process switching.
E. CEF can be used to forward packets when an ACL is involved since CEF tables include access control list information.
Correct Answer: AE Section: (none) Explanation
Explanation/Reference:
QUESTION 170
How does 802.1q trunking keep track of multiple VLAN’s?
A. modifies the port index of a data frame to indicate the VLAN
B. adds a new header containing the VLAN ID to the data frame
C. encapsulates the data frame with a new header and frame check sequence
D. tags the data frame with VLAN information and recalculates the CRC value
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 171
Which command will need to be added to External_A to ensure that it will take over if serial 0/0 on External_B fails?
A. standby 1 preempt
B. standby 1 track 10.10.10.1
C. standby 1 priority 130
D. standby 1 track fastethernet 0/0
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 172
Which Cisco IOS command assigns a Catalyst switch port to VLAN 10?
A. switchport mode vlan 10
B. switchport trunk native 10
C. switchport access vlan 10
D. switchport mode access vlan 10
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 173
Which statement correctly describes the extended system ID?
A. It is the 2-bit number of the MSTP instance.
B. It is the VLAN identifier value and allows for 4096 BIDs to be uniquely identified.
C. It is a bridge MAC address which is allocated from a pool of MAC addresses that are factory assigned.
D. It is a hex number used to measure the preference of a bridge in the spanning-tree algorithm.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 174
In a customer’s network, VLAN Trunking Protocol (VTP) is running with a domain named main1. VLANs 1,2,3,4,5,10,20 are active on the network. Suddenly the whole network goes down. No traffic is being passed on VLANs 2,3,4,5,10,20, however traffic passes on VLAN 1 and indicates all switches are operational. Right before the network problem occurred, a switch named TEST1 was added to the network. What three configuration issues on TEST1 could be causing the network outage? (Choose three.)
A. TEST1 is configured as a VTP server with a different domain name.
B. TEST1 is not configured to participate in VTP.
C. TEST1 is configured as a VTP server with the domain name main1.
D. TEST1 has a lower VTP configuration revision than the current VTP revision.
E. TEST1 has a higher VTP configuration revision than the current VTP revision.
F. TEST1 is configured with only VLAN1.
Correct Answer: CEF Section: (none) Explanation
Explanation/Reference:
QUESTION 175
Refer to the show interface Gi0/1 switchport command output shown in the exhibit. Which two statements are true about this interface? (Choose two.)
A. This interface is a dot1q trunk passing all configured VLANs.
B. This interface is configured for access mode.
C. This interface is a member of VLAN1.
D. This interface is a member of VLAN7.
E. This interface is a member of a voice VLAN.
Correct Answer: BD Section: (none) Explanation
Explanation/Reference:
QUESTION 176
Which two tasks are required to configure PIM for IP multicast routing? (Choose two.)
A. Join a multicast group.
B. Enable CGMP.
C. Enable IP multicast routing.
D. Configure the TTL threshold.
E. Enable PIM on an interface.
Correct Answer: CE Section: (none) Explanation
Explanation/Reference:
QUESTION 177
Assuming that VLAN 1 and VLAN 2 traffic is enabled on the above network, what effect will the following command have when entered on port 0/2 on Switch Aspanning-tree vlan 1 port-priority 16
A. VLAN 1 traffic will be blocked on Switch B port 1/1.
B. VLAN 2 traffic will be blocked on Switch B port 1/1.
C. VLAN 2 traffic will be blocked on Switch A port 0/2.
D. VLANs 1 and 2 will be blocked on Switch A port 0/1.
E. VLANs 1 and 2 will be blocked on Switch A port 0/2.
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 178
Which message type was added to IGMPv2?
A. heartbeat
B. join request
C. leave report
D. status report
E. membership report
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 179
Frames from Workstation 1 are given the proper priority through Switch A, but Switch B handles Workstation 1 frames as if they have no precedence. Which of the following actions will allow traffic from Workstation 1 to be given the proper priority?
A. configure qos all command under Switch B fa0/1 interface
B. configure mls qos trust cos command under Switch B fa0/1 interface
C. configure mls qos trust cos 5 command under Switch B fa0/1 interface
D. configure qos cos 5 command under Switch B fa0/1 interface
E. configure mls qos trust cos command under Switch A fa0/1 interface
F. configure qos cos 5 command under Switch A fa0/1 interface
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 180
Which two multicast IP addresses can be represented by the multicast MAC address 0100.5e0A.0A07? (Choose two.)
A. 228.10.10.7
B. 228.10.10.8
C. 228.10.138.7
D. 229.11.10.7
E. 229.138.10.7
F. 229.138.10.8
Correct Answer: AE Section: (none) Explanation
Explanation/Reference: QUESTION 181
Which two statements about the various implementations of STP are true? (Choose two.)
A. Common Spanning Tree maintains a separate spanning-tree instance for each VLAN configured in the network.
B. The Spanning Tree Protocol (STP) is an evolution of the IEEE 802.1w standard.
C. Per-VLAN Spanning Tree (PVST) supports 802.1Q trunking.
D. Per-VLAN Spanning Tree Plus(PVST+) is an enhancement to 802.1Q specification and is supported only on Cisco devices.
E. Rapid Spanning Tree Protocol (RSTP) includes features equivalent to Cisco PortFast, UplinkFast, and BackboneFast for faster network reconvergence.
F. Multiple Spanning Tree (MST) assumes one spanning-tree instance for the entire Layer 2 network, regardless of the multiple number of VLANs.
Correct Answer: DE Section: (none) Explanation
Explanation/Reference:
QUESTION 182
Examine the diagram. A network administrator has recently installed the above switched network using 3550s and would like to control the selection of the root bridge. Which switch should the administrator configure as the root bridge and which configuration command must the administrator enter to accomplish this?
A. DSW11(config)# spanning-tree vlan 1 priority 4096
B. DSW12(config)# set spanning-tree priority 4096
C. ASW13(config)# spanning-tree vlan 1 priority 4096
D. DSW11(config)# set spanning-tree priority 4096
E. DSW12(config)# spanning-tree vlan 1 priority 4096
F. ASW13(config)# set spanning-tree priority 4096
Correct Answer: E Section: (none) Explanation
Explanation/Reference:
QUESTION 183
Refer to the exhibit. Both host stations are part of the same subnet but are in different VLANs. On the basis of the information presented in the exhibit, which statement is true about an attempt to ping from host to host?
e
A. A trunk port will need to be configured on the link between Sw_A and Sw_B for the ping command to be successful.
B. The two different hosts will need to be in the same VLAN in order for the ping command to be successful.
C. A Layer 3 device is needed for the ping command to be successful.
D. The ping command will be successful without any further configuration changes.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 184
When building an IP multicast domain using PIM which mode assumes that other routers do not want to forward multicast packets for the group?
A. PIM-DM
B. PIM-SM
C. PIM-RP
D. CGMP
E. IGMP snooping
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 185
What can be determined about the HSRP relationship from the displayed debug output?
A. The preempt feature is not enabled on the 172.16.11.111 router.
B. The nonpreempt feature is enabled on the 172.16.11.112 router.
C. Router 172.16.11.111 will be the active router because its HSRP priority is preferred over router
172.16.11.112.
D. Router 172.16.11.112 will be the active router because its HSRP priority is preferred over router
172.16.11.111.
E. The IP address 172.16.11.111 is the virtual HSRP router IP address.
F. The IP address 172.16.11.112 is the virtual HSRP router IP address.
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 186
Refer to the exhibit. The Gateway Load Balancing Protocol has been configured on routers R1 and R2,
and hosts A and B have been configured as shown. Which statement
can be derived from the exhibit?
A. The GLBP weighted load balancing mode has been configured.
B. The GLBP host-dependent, load-balancing mode has been configured.
C. The GLBP round-robin, load-balancing mode has been configured.
D. The host A default gateway has been configured as 10.88.1.1/24.
E. The host A default gateway has been configured as 10.88.1.4/24.
F. The host A default gateway has been configured as 10.88.1.10/24.
Correct Answer: F Section: (none) Explanation
Explanation/Reference:
QUESTION 187
Which two statements are true about CEF switching? (Choose two.)
A. The CEF data plane is responsible for the fragmentation of outgoing packets.
B. The CEF control plane builds the FIB table. The data plane builds the adjacency table and forwards traffic.
C. The CEF control plane builds the FIB and adjacency tables. The data plane forwards IP unicast traffic.
D. IP packets with the IP header options set are process switched.
E. Packets with the TCP header options set are process switched.
F. The adjacency table is derived from next hop IP addresses in the routing table.
Correct Answer: CD Section: (none) Explanation
Explanation/Reference:
QUESTION 188
On a 3550 EMI switch, which three types of interfaces can be used to configure HSRP? (Choose three.)
A. loopback interface
B. SVI interface
C. routed port
D. access port
E. EtherChannel port channel
F. BVI interface
Correct Answer: BCE Section: (none) Explanation
Explanation/Reference:
QUESTION 189
A switch sends BPDUs with which destination address upon initial bootup?
A. a well-known STP multicast address
B. the IP address of its default gateway
C. the MAC addresses stored in the CAM table
D. the MAC address of neighbors discovered via CDP
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 190
Refer to the exhibit. Switch A is initially the root bridge. Switch D with bridge priority of 0 is added to the network. Which port should the Root Guard feature be configured on to prevent Switch D from becoming the root?
A. Switch A fa0/2
B. Switch C fa0/1
C. Switch C fa0/3
D. Switch D fa0/1
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
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