Q.1 Refer to the exhibit. What two statements can be concluded from the information that is shown in the exhibit? (Choose two.) All ports that are listed in the exhibit are access ports. ARP requests from Host1 will be forwarded to Host2. Attaching Host1 to port 3 will automatically allow communication between both hosts. The default gateway for each host must be changed to 192.168.3.250/28 to allow communication between both hosts. A router connected to the switch is needed to forward traffic between the hosts.
Q.2 A router is configured to connect to a trunked uplink as shown in the exhibit. A packet is received on the FastEthernet 0/1 physical interface from VLAN 10. The packet destination address is 192.168.1.120. What will the router do with this packet? The router will forward the packet out interface FastEthernet 0/1.1 tagged for VLAN 10. The router will forward the packet out interface FastEthernet 0/1.2 tagged for VLAN 60. The router will forward the packet out interface FastEthernet 0/1.3 tagged for VLAN 60. The router will forward the packet out interface FastEthernet 0/1.3 tagged for VLAN 120. The router will not process the packet since the source and destination are on the same subnet. The router will drop the packet since no network that includes the source address is attached to the router.
Q.3 The information contained in a BPDU is used for which two purposes? (Choose two.) to prevent loops by sharing bridging tables between connected switches to set the duplex mode of a redundant link to determine the shortest path to the root bridge to determine which ports will forward frames as part of the spanning tree to activate looped paths throughout the network
Q.4 A router has two serial interfaces and two Fast Ethernet interfaces. This router must be connected to a WAN link and to a switch that supports four VLANs. How can this be accomplished in the most efficient and cost-effective manner to support inter-VLAN routing between the four VLANs? Connect a smaller router to the serial interface to handle the inter-VLAN traffic. Add two additional Fast Ethernet interfaces to the router to allow one VLAN per interface. Connect a trunked uplink from the switch to one Fast Ethernet interface on the router and create logical subinterfaces for each VLAN. Use serial-to-Fast Ethernet transceivers to connect two of the VLANs to the serial ports on the router. Support the other two VLANs directly to the available FastEthernet ports.
Q.5 When are MAC addresses removed from the CAM table? at regular 30 second intervals when a broadcast packet is received when the IP Address of a host is changed after they have been idle for a certain period of time
Q.6 Refer to the exhibit. Switch1 is not participating in the VTP management process with the other switches. Which two are possible reasons for this? (Choose two.) Switch2 is in transparent mode. Switch1 is in client mode. Switch1 is using VTP version 1 and Switch2 is using VTP version 2. Switch2 is in server mode. Switch1 is in a different management domain. Switch1 has no VLANs.
Q.7 Which three must be used when a router interface is configured for VLAN trunking? (Choose three.) one subinterface per VLAN one physical interface for each subinterface one IP network or subnetwork for each subinterface one trunked link per VLAN a management domain for each subinterface a compatible trunking protocol encapsulation for each subinterface
Q.8 Refer to the exhibit. The switches are connected with trunks within the same VTP management domain. Each switch is labeled with its VTP mode. A new VLAN is added to Switch3. This VLAN does not show up on the other switches. What is the reason for this? VLANs cannot be created on transparent mode switches. Server mode switches neither listen to nor forward VTP messages from transparent mode switches. VLANs created on transparent mode switches are not included in VTP advertisements. There are no ports assigned to the new VLAN on the other switches. Transparent mode switches do not forward VTP advertisements.
Q.9 Which two criteria are used by STP to select a root bridge? (Choose two.) memory size bridge priority switching speed number of ports base MAC address switch location
Q.10 Which three steps should be taken before moving a Catalyst switch to a new VTP management domain? (Choose three.) Reboot the switch. Reset the VTP counters to allow the switch to synchronize with the other switches in the domain. Download the VTP database from the VTP server in the new domain. Configure the VTP server in the domain to recognize the BID of the new switch. Select the correct VTP mode and version. Configure the switch with the name of the new management domain.
Q.11 Which two items will prevent broadcasts from being sent throughout the network? (Choose two.) bridges routers switches VLANs hubs
Q.12 Which two characteristics describe a port in the STP blocking state? (Choose two.) provides port security displays a steady green light learns MAC addresses as BPDUs are processed discards data frames received from the attached segment receives BPDUs and directs them to the system module
Q.13 What is the first step in the process of convergence in a spanning tree topology? election of the root bridge determination of the designated port for each segment blocking of the non-designated ports selection of the designated trunk port activation of the root port for each segment
Q.14 In which STP state does a switch port transmit user data and learn MAC addresses? blocking learning disabling listening forwarding
Q.15 What is the purpose of VTP? maintaining consistency in VLAN configuration across the network routing frames from one VLAN to another routing the frames along the best path between switches tagging user data frames with VLAN membership information distributing BPDUs to maintain loop-free switched paths
Q.16 Which statement best describes adaptive cut-through switching? The switch initially forwards all traffic using cut-through switching and then changes to store-and-forward switching if errors exceed a threshold value. The switch initially forwards all traffic using cut-through switching and then changes to fast-forward switching if errors exceed a threshold value. The switch initially forwards all traffic using cut-through switching and then temporarily disables the port if errors exceed a threshold value. The switch initially forwards all traffic using store-and-forward switching and then changes to cut-through switching if errors exceed a threshold value.
Q.17 Using STP, how long does it take for a switch port to go from the blocking state to the forwarding state? 2 seconds 15 seconds 20 seconds 50 seconds
Q.18 Refer to the exhibit. The switches are interconnected by trunked links and are configured for VTP as shown. A new VLAN is added to Switch1. Which three actions will occur? (Choose three.) Switch1 will not add the VLAN to its database and will pass the update to Switch 2. Switch2 will add the VLAN to its database and pass the update to Switch3. Switch3 will pass the VTP update to Switch4. Switch3 will add the VLAN to its database. Switch4 will add the VLAN to its database. Switch4 will not receive the update.
Q.19 Which Catalyst feature causes a switch port to enter the spanning-tree forwarding state immediately? backbonefast uplinkfast portfast rapid spanning tree
Q.20 Refer to the exhibit. Which set of commands would be used on the router to provide communication between the two hosts connected to the switch? Router(config)# interface vlan 2
Router(config-if)# ip address 192.168.2.1 255.255.255.0
Router(config-if)# no shutdown
Router(config)# interface vlan 3
Router(config-if)# ip address 192.168.3.1 255.255.255.0
Router(config-if)# no shutdown Router(config)# interface fastethernet 0/0
Router(config-if)# no shutdown
Router(config-if)# interface fastethernet 0/0.2
Router(config-subif)# encapsulation dot1q 2
Router(config-subif)# ip address 192.168.2.1 255.255.255.0
Router(config-if)# interface fastethernet 0/0.3
Router(config-subif)# encapsulation dot1q 3
Router(config-subif)# ip address 192.168.3.1 255.255.255.0 Router(config)# interface vlan 2
Router(config-if)# switchport mode trunk dot1q
Router(config)# interface vlan 3
Router(config-if)# switchport mode trunk dot1q Router(config)# interface fastethernet 0/0
Router(config-if)# mode trunk dot1q 2 3
Router(config-if)# ip address 192.168.2.1 255.255.255.0
Q.2 A router is configured to connect to a trunked uplink as shown in the exhibit. A packet is received on the FastEthernet 0/1 physical interface from VLAN 10. The packet destination address is 192.168.1.120. What will the router do with this packet? The router will forward the packet out interface FastEthernet 0/1.1 tagged for VLAN 10. The router will forward the packet out interface FastEthernet 0/1.2 tagged for VLAN 60. The router will forward the packet out interface FastEthernet 0/1.3 tagged for VLAN 60. The router will forward the packet out interface FastEthernet 0/1.3 tagged for VLAN 120. The router will not process the packet since the source and destination are on the same subnet. The router will drop the packet since no network that includes the source address is attached to the router.
Q.3 The information contained in a BPDU is used for which two purposes? (Choose two.) to prevent loops by sharing bridging tables between connected switches to set the duplex mode of a redundant link to determine the shortest path to the root bridge to determine which ports will forward frames as part of the spanning tree to activate looped paths throughout the network
Q.4 A router has two serial interfaces and two Fast Ethernet interfaces. This router must be connected to a WAN link and to a switch that supports four VLANs. How can this be accomplished in the most efficient and cost-effective manner to support inter-VLAN routing between the four VLANs? Connect a smaller router to the serial interface to handle the inter-VLAN traffic. Add two additional Fast Ethernet interfaces to the router to allow one VLAN per interface. Connect a trunked uplink from the switch to one Fast Ethernet interface on the router and create logical subinterfaces for each VLAN. Use serial-to-Fast Ethernet transceivers to connect two of the VLANs to the serial ports on the router. Support the other two VLANs directly to the available FastEthernet ports.
Q.5 When are MAC addresses removed from the CAM table? at regular 30 second intervals when a broadcast packet is received when the IP Address of a host is changed after they have been idle for a certain period of time
Q.6 Refer to the exhibit. Switch1 is not participating in the VTP management process with the other switches. Which two are possible reasons for this? (Choose two.) Switch2 is in transparent mode. Switch1 is in client mode. Switch1 is using VTP version 1 and Switch2 is using VTP version 2. Switch2 is in server mode. Switch1 is in a different management domain. Switch1 has no VLANs.
Q.7 Which three must be used when a router interface is configured for VLAN trunking? (Choose three.) one subinterface per VLAN one physical interface for each subinterface one IP network or subnetwork for each subinterface one trunked link per VLAN a management domain for each subinterface a compatible trunking protocol encapsulation for each subinterface
Q.8 Refer to the exhibit. The switches are connected with trunks within the same VTP management domain. Each switch is labeled with its VTP mode. A new VLAN is added to Switch3. This VLAN does not show up on the other switches. What is the reason for this? VLANs cannot be created on transparent mode switches. Server mode switches neither listen to nor forward VTP messages from transparent mode switches. VLANs created on transparent mode switches are not included in VTP advertisements. There are no ports assigned to the new VLAN on the other switches. Transparent mode switches do not forward VTP advertisements.
Q.9 Which two criteria are used by STP to select a root bridge? (Choose two.) memory size bridge priority switching speed number of ports base MAC address switch location
Q.10 Which three steps should be taken before moving a Catalyst switch to a new VTP management domain? (Choose three.) Reboot the switch. Reset the VTP counters to allow the switch to synchronize with the other switches in the domain. Download the VTP database from the VTP server in the new domain. Configure the VTP server in the domain to recognize the BID of the new switch. Select the correct VTP mode and version. Configure the switch with the name of the new management domain.
Q.11 Which two items will prevent broadcasts from being sent throughout the network? (Choose two.) bridges routers switches VLANs hubs
Q.12 Which two characteristics describe a port in the STP blocking state? (Choose two.) provides port security displays a steady green light learns MAC addresses as BPDUs are processed discards data frames received from the attached segment receives BPDUs and directs them to the system module
Q.13 What is the first step in the process of convergence in a spanning tree topology? election of the root bridge determination of the designated port for each segment blocking of the non-designated ports selection of the designated trunk port activation of the root port for each segment
Q.14 In which STP state does a switch port transmit user data and learn MAC addresses? blocking learning disabling listening forwarding
Q.15 What is the purpose of VTP? maintaining consistency in VLAN configuration across the network routing frames from one VLAN to another routing the frames along the best path between switches tagging user data frames with VLAN membership information distributing BPDUs to maintain loop-free switched paths
Q.16 Which statement best describes adaptive cut-through switching? The switch initially forwards all traffic using cut-through switching and then changes to store-and-forward switching if errors exceed a threshold value. The switch initially forwards all traffic using cut-through switching and then changes to fast-forward switching if errors exceed a threshold value. The switch initially forwards all traffic using cut-through switching and then temporarily disables the port if errors exceed a threshold value. The switch initially forwards all traffic using store-and-forward switching and then changes to cut-through switching if errors exceed a threshold value.
Q.17 Using STP, how long does it take for a switch port to go from the blocking state to the forwarding state? 2 seconds 15 seconds 20 seconds 50 seconds
Q.18 Refer to the exhibit. The switches are interconnected by trunked links and are configured for VTP as shown. A new VLAN is added to Switch1. Which three actions will occur? (Choose three.) Switch1 will not add the VLAN to its database and will pass the update to Switch 2. Switch2 will add the VLAN to its database and pass the update to Switch3. Switch3 will pass the VTP update to Switch4. Switch3 will add the VLAN to its database. Switch4 will add the VLAN to its database. Switch4 will not receive the update.
Q.19 Which Catalyst feature causes a switch port to enter the spanning-tree forwarding state immediately? backbonefast uplinkfast portfast rapid spanning tree
Q.20 Refer to the exhibit. Which set of commands would be used on the router to provide communication between the two hosts connected to the switch? Router(config)# interface vlan 2
Router(config-if)# ip address 192.168.2.1 255.255.255.0
Router(config-if)# no shutdown
Router(config)# interface vlan 3
Router(config-if)# ip address 192.168.3.1 255.255.255.0
Router(config-if)# no shutdown Router(config)# interface fastethernet 0/0
Router(config-if)# no shutdown
Router(config-if)# interface fastethernet 0/0.2
Router(config-subif)# encapsulation dot1q 2
Router(config-subif)# ip address 192.168.2.1 255.255.255.0
Router(config-if)# interface fastethernet 0/0.3
Router(config-subif)# encapsulation dot1q 3
Router(config-subif)# ip address 192.168.3.1 255.255.255.0 Router(config)# interface vlan 2
Router(config-if)# switchport mode trunk dot1q
Router(config)# interface vlan 3
Router(config-if)# switchport mode trunk dot1q Router(config)# interface fastethernet 0/0
Router(config-if)# mode trunk dot1q 2 3
Router(config-if)# ip address 192.168.2.1 255.255.255.0
DRSEnt Chapter 3 - CCNA Discovery: Introducing Routing and Switching in the Enterprise (Version 4.0)
Which statement is true about the port security feature in a Cisco switch?It disables unused ports.
It filters network traffic based on host MAC addresses.
It executes a shutdown on the port, based on Layer 4 port numbers.It disables Telnet traffic because the username and password are transmitted in plain text.
Which three must be used when a router interface is configured for VLAN trunking? (Choose three.)
one subinterface per VLAN
one physical interface for each subinterface
one IP network or subnetwork for each subinterface
one trunked link per VLANa management domain for each subinterface
a compatible trunking protocol encapsulation for each subinterface3
Refer to the exhibit. A network administrator noticed that the VLAN configuration changes at SW2 did not propagate to SW3. On thebasis of the partial output of the
show vtp status
command, what is the possible cause of the problem?VTP V2 mode is disabled.
SW3 is configured as transparent mode.
The number of existing VLANs does not match.The configuration revision number does not match.
In an enterprise network, why would voice traffic typically require a dedicated VLAN?It guarantees end-to-end delivery for voice traffic.It guarantees higher bandwidth for voice traffic.
It separates voice traffic from data traffic so data traffic does not impact voice traffic.
It provides backup support for voice traffic because voice traffic is more critical than data traffic.
Which Catalyst switch feature causes an access port to enter the spanning-tree forwarding state immediately?backbonefastuplinkfast
portfast
rapid spanning tree6
Refer to the exhibit. A router is configured to connect to a trunked uplink of a switch. A packet is received on the FastEthernet 0/1physical interface from VLAN 10 with a destination address of 192.168.1.120. What will the router do with this packet?forward the packet out interface FastEthernet 0/1.1 tagged for VLAN 10
forward the packet out interface FastEthernet 0/1.2 tagged for VLAN 60
forward the packet out interface FastEthernet 0/1.3 tagged for VLAN 120not process the packet (because the source and destination are on the same subnet)drop the packet (because no network that includes the source address is attached to the router)
Which two criteria are used by STP to select a root bridge? (Choose two.)memory size
bridge priority
switching speednumber of ports
base MAC address
switch location
Which statement best describes adaptive cut-through switching?
The switch initially forwards all traffic using cut-through switching and then changes to store-and-forward switching if errors exceed a threshold value.
The switch initially forwards all traffic using cut-through switching and then changes to fast-forward switching if errors exceed athreshold value.The switch initially forwards all traffic using cut-through switching and then temporarily disables the port if errors exceed a thresholdvalue.The switch initially forwards all traffic using store-and-forward switching and then changes to cut-through switching if errors exceeda threshold value.
What is the purpose of VTP?
maintaining consistency in VLAN configuration across the network
routing frames from one VLAN to another routing the frames along the best path between switchestagging user data frames with VLAN membership informationdistributing BPDUs to maintain loop-free switched paths
Which two characteristics describe a port in the STP blocking state? (Choose two.)
receives BPDUs
provides port securitydisplays a steady green lightlearns MAC addresses as BPDUs are processed
discards data frames received from the attached segment11
Which statement describes the function of a VLAN Management Policy Server (VMPS)?VMPS provides easy organization of static VLAN membership.
VMPS provides flexible dynamic assignments of VLAN membership.
VMPS provides a backup service for static VLAN membership configuration.VMPS provides the easiest deployment of VLANs regardless of the number of switches involved.
Which two items are contained within a BPDU? (Choose two.)identity of the default gatewaynumber of ports blocked by STP
identity of the root bridgeidentity of the source port
VTP domain name
A router has two serial interfaces and two Fast Ethernet interfaces. This router must be connected to a WAN link and to a switch thatsupports four VLANs. How can this be accomplished in the most efficient and cost-effective manner to support inter-VLAN routingbetween the four VLANs?Connect a smaller router to the serial interface to handle the inter-VLAN traffic.Add two additional Fast Ethernet interfaces to the router to allow one VLAN per interface.
Connect a trunked uplink from the switch to one Fast Ethernet interface on the router and create logical subinterfacesfor each VLAN.
Use serial-to-Fast Ethernet transceivers to connect two of the VLANs to the serial ports on the router. Support the other twoVLANs directly to the available FastEthernet ports.
Which two items will prevent broadcasts from being sent throughout the network? (Choose two.)bridges
routers
switches
VLANs
hubs
Using STP, how long does it take for a switch port to go from the blocking state to the forwarding state?2 seconds15 seconds20 seconds
50 seconds1 6
Refer to the exhibit. The switches are interconnected by trunked links and are configured for VTP as shown. A new VLAN is added toSwitch1. Which three actions will occur? (Choose three.)Switch1 will not add the VLAN to its database and will pass the update to Switch 2.
Switch2 will add the VLAN to its database and pass the update to Switch3.Switch3 will pass the VTP update to Switch4.
Switch3 will add the VLAN to its database.
Switch4 will add the VLAN to its database.
Switch4 will not receive the update.
17
Refer to the exhibit. Which statement is true about the network traffic flow on this switch?All PCs that are connected to this switch will be able to communicate with each other as long as they belong to the same IPnetwork.
A PC that is connected to port Fa0/2 can communicate with another PC that is connected to Port Fa0/22 if the PCs
belong to the same IP network.
A PC that is connected to port Fa0/11 can communicate with another PC that is connected to Port Fa0/20 if the PCs belong to thesame IP network.A PC that is connected to port Fa0/15 can communicate with another PC that is connected to Port Fa0/24 regardless of the IPnetwork to which the PCs belong.
18
In which STP state does a switch port transmit user data and learn MAC addresses?blockinglearningdisablinglistening
When are MAC addresses removed from the CAM table?at regular 30 second intervalswhen a broadcast packet is receivedwhen the IP Address of a host is changed
after they have been idle for a certain period of time20
Refer to the exhibit. What is the effect of the commands in the exhibit?There will be no effect unless the command
switchport port-security mac-address
mac-addr
is added.
The first device that is connected to port fa0/6 will be allowed to transmit data. Any other devices that connect to it willshut down the port.
The first device that is connected to port fa0/6 will be allowed to transmit data. The learned MAC will be kept even after the switchis restarted.The first device that is connected to port fa0/6 will be allowed to transmit data. Any other devices that connect to it will be allowedto transmit data and a warning will be sent to the syslog server.
Refer to the exhibit. Switch1 is not participating in the VTP management process with the other switches. Which two are possiblereasons for this? (Choose two.)Switch2 is in transparent mode.Switch1 is in client mode.
Switch1 is using VTP version 1 and Switch2 is using VTP version 2.
Switch2 is in server mode.
Switch1 is in a different management domain.
Switch1 has no VLANs.
Refer to the exhibit. What two conclusions can be drawn from the information that is shown in the exhibit? (Choose two.)
All ports that are listed in the exhibit are access ports.
ARP requests from Host1 will be forwarded to Host2.Attaching Host1 to port 11 will automatically allow communication between both hosts.The default gateway for each host must be changed to 192.168.3.250/28 to allow communication between both hosts.
A router connected to the switch is needed to forward traffic between the hosts.
Which statement describes a difference between STP and RSTP?RSTP is proprietary while STP is defined by IEEE.RSTP defines four port states while STP defines five port states.
When a topology changes, RSTP reconfigures the spanning tree in less than 1 second.
STP is more commonly used in large switched enterprise networks that require faster recovery.
What is the first step in the process of convergence in a spanning tree topology?
election of the root bridge
determination of the designated port for each segmentblocking of the non-designated portsselection of the designated trunk portactivation of the root port for each segment
Refer to the exhibit. The switches are connected with trunks within the same VTP management domain. Each switch is labeled with itsVTP mode. A new VLAN is added to Switch3. This VLAN does not show up on the other switches. What is the reason for this?VLANs cannot be created on transparent mode switches.Server mode switches neither listen to nor forward VTP messages from transparent mode switches.
VLANs created on transparent mode switches are not included in VTP advertisements.
There are no ports assigned to the new VLAN on the other switches.Transparent mode switches do not forward VTP advertisements.
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