Which two link protocols are used to carry multiple VLANs over a single link?
1. VTP
2. STP
3. 802.1q
4. isl
5. 802.3u
Which switch would STP choose to become the root bridge in the selection process?
1. 32468: 11-22-33-44-55-66
2. 32468: 22-33-44-55-66-77
3. 32469: 11-22-33-44-55-65
4. 32469: 22-33-44-55-66-78
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?
1. 802.1q giants frame could saturate the link
2. VLAN 10 on CAT1 and VLAN 1on CAT2 will send untagged frames
3. A native VLAN mismatch error message will appear
4. VLAN 10 on CAT1 and VLAN1 on CAT2 will send tagged frames
A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices. What would be the most efficient way to configure MAC-level security on all these ports?
1. Visually verify the MAC addresses and then telnet to the switches to enter the switchport –port security mac-address command
2. Have end users email their MAC addresses, telnet to the switches to enter the switchport –port security mac-address command
3. Use the switchport port-security MAC address sticky command on all switch ports that have end devices connected to them
4. Use show mac-address-table to determine the address that are associated with each port and then enter the command on each swithc for MAC address port-security.
Refer to the exhibit; why has this switch not been elected the root bridge for VLAN1?
1. It has more than one interface that is connected to the root network segment
2. It is running RSTP while the elected root bridge is running 802.1d STP
3. It has higher MAC address than the elected root bridge
4. It has higher bridge ID than the elected root bridge
Refer to the exhibit; at the end of RSTP election process, which access layer swithc port will assume the discarding role?
1. Switch 3, port fa0/1
2. Switch 3, port fa0/12
3. Switch 4, port fa0/11
4. Switch 4, port fa0/2
5. Switch 3, port Gi0/1
6. Switch 3, port Gi0/2
Refer to the exhibit; some 2950series switches are connected to the conference area of the corporate headquarters network. The switches provide two or three jacks per conference room to host laptop connections for employees who visit the headquarters office. When large groups of employees come from other locations, the network administrator often find s that hubs have been connected to wall jacks in the conference area although the ports on the access layer switches were not intended to support multiple workstations. What action could the network administrator take to prevent access by multiple laptops through a single switch port and still leave the switch functional for its intended use?
1. Configure static entries in the switch MAC address table to include the range of addresses used by visiting employees
2. Configure an ACL to allow only one MAC address to connect to the switch at one time
3. Use the mac-address-table 1 global configuration command to limit each port to one source MAC address
4. Implement port security on all interfaces and use port-security maximum 1 command to limit port access to a single MAC address
5. Implement port security on all interfaces and use port-security sticky command to limit port access to a single MAC address
6. Implement port security at global configuration mode and use port-security maximum 1 command to allow each switch only one attached hub
Refer to the exhibit; which switch provides the spanning-tree designated port role for the network segment that services the printer?
1. Switch 1
2. Switch 3
3. Switch 2
4. Switch 4
What is the purpose of the Cisco VLAN trunking protocol?
1. To allow traffic to be carried from multiple VLANs over a single link between switches
2. To allow native VLAN information to be carried over a trunk link
3. To allow for managing the additions, deletions, and changes of VLANs between switches
4. To provide a mechanism to manually assign VLAN membership to switch ports
5. To provide a mechanism to dynamically assign VLAN membership to switch ports
What is the purpose of Spanning Tree Protocol?
1. To provide multiple gateways for hosts
2. To maintain a loop-free layer 2 network topology
3. To prevent routing loops
4. To create a default route
While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate?
1. The port is experiencing errors
2. The port is administratively disabled
3. The port is blocked by spanning tree
4. The port has an active link with normal traffic activity
Assuming default setting, how can you erase the VTP database of VLANs on a Cisco IOS switch running in VTP server mode?
1. Enable VTP pruning
2. From privileged mode. Erase the startup config file, then reload
3. From privileged mode, erase the vlan dat file, then reload
4. Cycle the switch power
Refer to the exhibit; Computer 1 is consoles into switch A. Telnet connections and pings run from the command prompt on Switch A fails. Which of the following could cause this problem?
1. Switch A does not have a cdp entry for switch B or router JAX
2. Switch A does not have an IP address
3. Port 1 on switch A should be an access port rather than a trunk port
4. Switch A is not directly connected to router JAX
5. Switch A does not have a default gateway assigned
Which term describes a spanning-tree network that has all switch ports in either the blocking or forwarding state?
1. Spanned
2. Converged
3. Provisioned
4. Redundant
How are VTP advertisements delivered to switches across the network?
1. Unicast frames
2. Multicast frames
3. Broadcast frames
4. Anycast frames
Assuming the default switch configuration, which VLAN range can be added, modified, and removed on a Cisco switch?
1. 1 through 1002
2. 2 through 1001
3. 1 through 1001
4. 2 through 1005
In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?
1. After broken links are re-established
2. in an improperly implemented redundant topology
3. When upper-layer protocols require high reliability
4. During high traffic periods
5. When a dual ring topology is in use
Which command would you configure globally on a Cisco router that would allow you to view directly connected Cisco devices?
1. enable cdp
2. cdp enable
3. cdp run
4. run cdp
Refer to the exhibit; A host is connected to switch port Fa0/3 with a crossover cable. However, the port indicator on switch port Fa0/3 is not on, and the host cannot communicate with VLAN 2 on the same switch. Based on the information given, what is the problem?
1. The switch has been assigned an incorrect subnet mask
2. Switch port fa0/3 is not configured as a trunk port
3. Switch port fa0/3 has been blocked by STP
4. The switch and the host must be in the same subnet
5. The cable is the wrong type
What does a layer 2 switch use to decide where to forward a received frame?
1. Source MAC address
2. Source IP address
3. Source switch port
4. Destination MAC address
5. Destination MAC address
6. Destination switch port
Which protocol reduces administrative overhead in a switched network by allowing the configuration of a new VLAN to be distributed to all the switches in a domain?
1. STP
2. VTP
3. GVRP
4. RSTP
5. DHCP
Which value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?
1. Port priority number and MAC address
2. Lowest port MAC address
3. Path cost
4. VTP revision number
5. Highest port priority number
Which command enables RSTP on a switch?
1. Spanning tree backbonefast
2. Spanning-tree mode rapid-pvst
3. Spanning-tree mode mst
4. Spanning-tree uplinkfast
Which of the following is a characteristics of full-duplex communication?
1. It is a CSMA/CD network
2. It is a CSMA/CA network
3. It is point-to-point only
4. Hub communication is done via full duplex
A network administrator has configured two switches, named London and Madrid, to use VTP. However, the switches are not sharing VTP messages. Given the command output shown in the graphic, why are these switches not sharing VTP messages?
1. The VTP version is not correctly configured
2. The VTP operating mode is not correctly configured
3. The VTP domain is not correctly configured
4. VTP pruning mode is disables
5. VTP v2 mode is disabled
Refer to the exhibit; the network administrator normally establishes a telnet session with the switch from host A. However, host A is unavailable. The administrator’s attempt to telnet to the switch from host B fails, but ping to the other two hosts are successful. What is the issue?
1. Host B and the switch need to be in the same subnet
2. The switch needs an appropriate default gateway assigned
3. The switch interface connected to the router is down
4. Host B needs to be assigned an IP address in vlan 1
Why will a switch never learn a broadcast address?
1. Broadcast frames are never sent to switches
2. Broadcast addresses use an incorrect format for the switching table
3. A broadcast address will never be the source address of a frame
4. Broadcast only use network layer addressing
5. A broadcast frame is never forwarded by a switch
Which is one benefit of PVST+?
1. PVST+ reduces the CPU cycles for all the switches in the network
2. PVST+ automatically selects the root bridge location, to provide optimise
3. PVST+ allows the root switch location to be optimised per VLAN
4. PVST+ supports layer 3 load balancing without loops
Which command enhances the 802.1D convergence time on ports that are connected to hosts?
1. Spanning-tree backbonefast
2. Spanning-tree uplinkfast
3. Spanning-tree portfast
4. Spanning-tree cost512
Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over FastEthernet?
1. 802.3ad
2. 802.1w
3. 802.1q
4. 802.1d