200-125 CCNA Cisco Certified Network Associate Test Set 3

Which of these are characteristics of the 802.1Q protocol? 


Options are :

  • It is used exclusively for tagging VLAN frames and does not address network reconvergence following switched network topology changes.
  • It modifies the 802.3 frame header, and thus requires that the FCS be recomputed
  • It includes an 8-bit field which specifies the priority of a frame.
  • It is a Layer 2 messaging protocol which maintains VLAN configurations across networks.

Answer : It modifies the 802.3 frame header, and thus requires that the FCS be recomputed

Which link protocols are used to carry multiple VLANs over a single link?


Options are :

  • 802.1q
  • 802.3u
  • VTP
  • IGP

Answer : 802.1q

Refer to the exhibit.

Which switch provides the spanning-tree designated port role for the network segment that
services the printers?


Options are :

  • Switch3
  • Switch4
  • Switch1
  • Switch2

Answer : Switch3

100-105 Net Cert Interconnecting Cisco Networking Exam Set 6

A receiving host computes the checksum on a frame and determines that the frame is
damaged. The frame is then discarded. At which OSI layer did this happen?


Options are :

  • . data link
  • transport
  • network
  • session

Answer : . data link

What value is primarily used to determine which port becomes the root port on each
nonroot switch in a spanning-tree topology?


Options are :

  • path cost
  • highest port priority number
  • VTP revision number
  • lowest port MAC address

Answer : path cost

Which command enables RSTP on a switch?


Options are :

  • spanning-tree uplinkfast
  • spanning-tree mode rapid-pvst
  • spanning-tree mode mst
  • spanning-tree backbonefast

Answer : spanning-tree mode rapid-pvst

200-125 Cisco Certified Network Associate Practice Exam Set 10

Refer to the exhibit.

Why has this switch not been elected the root bridge for VLAN1?


Options are :

  • It has a higher bridge ID than the elected root bridge.
  • It has a higher MAC address than the elected root bridge
  • It is running RSTP while the elected root bridge is running 802.1d spanning tree.
  • It has more than one interface that is connected to the root network segment

Answer : It has a higher bridge ID than the elected root bridge.

Refer to the exhibit.

Each of these four switches has been configured with a hostname, as well as being
configured to run RSTP. No other configuration changes have been made. Which of
these show the correct RSTP port roles for the indicated switches and interfaces? 


Options are :

  • SwitchB, Gi0/2, root
  • SwitchA, Fa0/2, designated
  • SwitchC, Fa0/2, root
  • SwitchB, Gi0/1, designated

Answer : SwitchA, Fa0/2, designated

What parameter can be different on ports within an EtherChannel?


Options are :

  • speed
  • DTP negotiation settings
  • trunk encapsulation
  • duplex

Answer : DTP negotiation settings

300-320 Designing Cisco Network Service Architectures Exam Set 3

What are  advantages of VLANs?


Options are :

  • VLANs provide a low-latency internetworking alternative to routed networks.
  • VLANs establish broadcast domains in switched networks.
  • VLANs utilize packet filtering to enhance network security.
  • VLANs provide a method of conserving IP addresses in large networks.

Answer : VLANs establish broadcast domains in switched networks.

A network administrator is verifying the configuration of a newly installed host by
establishing an FTP connection to a remote server. What is the highest layer of the
protocol stack that the network administrator is using for this operation?


Options are :

  • session
  • transport
  • presentation
  • application

Answer : application

Refer to the exhibit.

At the end of an RSTP election process, which access layer switch port will assume the
discarding role?


Options are :

  • Switch4, port fa0/2
  • Switch3, port fa0/1
  • Switch3, port fa0/12
  • Switch4, port fa0/11

Answer : Switch4, port fa0/11

300-320 Designing Cisco Network Service Architectures Exam Set 1

Refer to the exhibit.

Switch-1 needs to send data to a host with a MAC address of 00b0.d056.efa4. What will
Switch-1 do with this data?


Options are :

  • Switch-1 will forward the data to its default gateway.
  • Switch-1 will drop the data because it does not have an entry for that MAC address.
  • Switch-1 will flood the data out all of its ports except the port from which the data originated.
  • Switch-1 will send an ARP request out all its ports except the port from which the data originated.

Answer : Switch-1 will flood the data out all of its ports except the port from which the data originated.

Refer to the exhibit.

The output that is shown is generated at a switch. Which three statements are true?


Options are :

  • All ports will be in a state of discarding, learning, or forwarding.
  • This switch must be the root bridge for all VLANs on this switch.
  • All interfaces that are shown are on shared media.
  • Thirty VLANs have been configured on this switch

Answer : All ports will be in a state of discarding, learning, or forwarding.

Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports
FA0/13. An 802.1Q trunk is configured between the two switches. On CAT1, VLAN 10 is
chosen as native, but on CAT2 the native VLAN is not specified.
What will happen in this scenario?


Options are :

  • VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames.
  • 802.1Q giants frames could saturate the link.
  • VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames.
  • A native VLAN mismatch error message will appear.

Answer : A native VLAN mismatch error message will appear.

200-105 Interconnecting Cisco Networking Devices Part Exam Set 4

Refer to the exhibit.

A technician is troubleshooting host connectivity issues on the switches. The hosts in
VLANs 10 and 15 on Sw11 are unable to communicate with hosts in the same VLANs on
Sw12. Hosts in the Admin VLAN are able to communicate. The port-to-VLAN assignments
are identical on the two switches. What could be the problem?


Options are :

  • The Fa0/1 port is not operational on one of the switches.
  • Port FastEthernet 0/1 needs to be configured as an access link on both switches.
  • At least one port needs to be configured in VLAN 1 for VLANs 10 and 15 to be able to communicate.
  • The link connecting the switches has not been configured as a trunk.

Answer : The link connecting the switches has not been configured as a trunk.

Refer to the exhibit.

How should the FastEthernet0/1 ports on the switches that are shown in the exhibit be
configured to allow connectivity between all devices?


Options are :

  • SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk SwitchX(config-if)# switchport trunk vlan 1 SwitchX(config-if)# switchport trunk vlan 10 SwitchX(config-if)# switchport trunk vlan 20
  • The ports only need to be connected by a crossover cable.
  • SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode access SwitchX(config-if)# switchport access vlan 1
  • SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk

Answer : SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk

Which statement about VLAN operation on Cisco Catalyst switches is true?


Options are :

  • Unknown unicast frames are retransmitted only to the ports that belong to the same VLAN.
  • Ports between switches should be configured in access mode so that VLANs can span across the ports.
  • When a packet is received from an 802.1Q trunk, the VLAN ID can be determined from the source MAC address and the MAC address table.
  • Broadcast and multicast frames are retransmitted to ports that are configured on different VLAN.

Answer : Unknown unicast frames are retransmitted only to the ports that belong to the same VLAN.

Cisco 210-060 Implement Collaboration Device Practice Exam Set 3

A network interface port has collision detection and carrier sensing enabled on a shared
twisted pair network. From this statement, what is known about the network interface port?


Options are :

  • This is an Ethernet port operating at half duplex.
  • This is a 100 Mb/s switch port.
  • . This is a 10 Mb/s switch port.
  • This is an Ethernet port operating at half duplex.

Answer : This is an Ethernet port operating at half duplex.

Refer to the exhibit:

What will Router1 do when it receives the data frame shown? 


Options are :

  • Router1 will strip off the source IP address and replace it with the IP address 192.168.40.1.
  • Router1 will strip off the destination IP address and replace it with the IP address of 192.168.40.1.
  • Router1 will forward the data packet out interface FastEthernet0/1.
  • . Router1 will strip off the source MAC address and replace it with the MAC address 0000.0c36.6965.

Answer : . Router1 will strip off the source MAC address and replace it with the MAC address 0000.0c36.6965.

In an Ethernet network, under what two scenarios can devices transmit? 


Options are :

  • when they receive a special token
  • when there is a carrier
  • when the server grants access
  • . when they detect no other devices are sending

Answer : . when they detect no other devices are sending

200-105 Interconnecting Cisco Networking Devices Part Exam Set 6

Which port state is introduced by Rapid-PVST?


Options are :

  • learning
  • listening
  • forwarding
  • discarding

Answer : discarding

Refer to the exhibit.

Switch port FastEthernet 0/24 on ALSwitch1 will be used to create an IEEE 802.1Q-
compliant trunk to another switch. Based on the output shown, what is the reason the trunk
does not form, even though the proper cabling has been attached?


Options are :

  • VLANs have not been created yet.
  • The port is currently configured for access mode.
  • An IP address must be configured for the port.
  • The correct encapsulation type has not been configured.

Answer : The port is currently configured for access mode.

What is one benefit of PVST+?


Options are :

  • PVST+ automatically selects the root bridge location, to provide optimized bandwidth usage.
  • PVST+ allows the root switch location to be optimized per VLAN.
  • . PVST+ reduces the CPU cycles for all the switches in the network.
  • PVST+ supports Layer 3 load balancing without loops.

Answer : PVST+ allows the root switch location to be optimized per VLAN.

100-105 Net Cert Interconnecting Cisco Networking Exam Set 8

For what purposes does the Ethernet protocol use physical addresses? (


Options are :

  • to uniquely identify devices at Layer 2
  • o allow detection of a remote device when its physical address is unknown
  • to differentiate a Layer 2 frame from a Layer 3 packet
  • to allow communication with devices on a different network

Answer : to uniquely identify devices at Layer 2

Refer to exhibit:

Which destination addresses will be used by Host A to send data to Host C? 


Options are :

  • the MAC address of Host C
  • the MAC address of Switch 1
  • . the IP address of Switch 1
  • the IP address of Host C

Answer : the IP address of Host C

Which layer in the OSI reference model is responsible for determining the availability of the
receiving program and checking to see if enough resources exist for that communication?


Options are :

  • network
  • transport
  • application
  • presentation

Answer : application

300-115 Implementing Cisco IP Switched Network Practice Exam Set 2

A router has two Fast Ethernet interfaces and needs to connect to four VLANs in the local
network. How can you accomplish this task, using the fewest physical interfaces and
without decreasing network performance?


Options are :

  • Implement a router-on-a-stick configuration.
  • . Add two more Fast Ethernet interfaces.
  • Use a hub to connect the four VLANS with a Fast Ethernet interface on the router.
  • Add a second router to handle the VLAN traffic.

Answer : Implement a router-on-a-stick configuration.

Refer to the exhibit.

Based on the information given, which switch will be elected root bridge and why?


Options are :

  • Switch A, because it has the lowest MAC address
  • Switch C, because it has the lowest priority
  • Switch C, because it is the most centrally located switch
  • Switch A, because it is the most centrally located switch

Answer : Switch C, because it has the lowest priority

Refer to the exhibit.

All switch ports are assigned to the correct VLANs, but none of the hosts connected to
SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Based on
the output shown, what is the most likely problem?


Options are :

  • VTP is not configured to carry VLAN information between the switches.
  • The access link needs to be configured in multiple VLANs.
  • The link between the switches is configured in the wrong VLAN.
  • The link between the switches needs to be configured as a trunk.

Answer : The link between the switches needs to be configured as a trunk.

300-101 Implementing Cisco IP Routing (ROUTE) Practice Exam Set 3

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