A network engineer is trying to deploy a PC on a network. The engineer observes that when the PC is connected to the network that it takes 30 to 60 seconds for the PC to see any activity on the network interface card. Which layer 2 enhancement can be used to eliminate this delay?
Configure port duplex and speed to auto negotiation
Configure port to duplex full and speed 1000
Configure spanning-tree portfast
Configure no switchport
While working in the core network building, a technician accidently bumps the fiber connection between two core switches and damages one of the pairs of fiber. As designed, the link was placed into a non-forwarding state due to a fault with UDLD. After the damaged cable was replaced the link did not recover. What solution allows the network to recover from such an issue?
Bidirectional Forwarding Detection
IP Event Dampening
What is the value of the TPID/tag protocol identifier in dot1q?
A network engineer wants to use UDLD, what does he need to consider? Uni-Directional Link Detection
UDLD can aggressively disable the port after eight failed retries
UDLD is layer 1
UDLD is working with non Cisco devices
UDLD is a non-propriety technology
What is the process to configure EtherChannel?
Shutdown the interface on one side only
Configure all ports up to 8 with no shut command
Shutdown all ports
Shutdown is necessary if the ports are in err-disable
A network engineer is extending a LAN segment between two geographically separated data centers. Which enhancement to a spanning-tree design prevents unnecessary traffic from crossing the extended VLAN segment?
Use VTP pruning on the trunk interfaces
Configure manual trunk pruning between the two locations
Modify the spanning-tree priorities to dictate the traffic flow
Create a Layer 3 transit VLAN to segment the traffic between the sites
Which four LACP components are used to determine which hot-standby links become active after an interface failure within an EtherChannel bundle? Choose 4
LACP system priority
Hot-Standby link ID number
Interface MAC address
LACP port priority
A network administrator configures 10 extended VLANs ranging from VLAN 3051 to 3060 in an enterprise network. Which version of VTP supports these extended VLANs?
VTP does not recognize extended VLANs
If Storm Control is enabled on a port and the traffic reaches the configured level which two actions can be configured to occur? Choose 2
Which statement is true about dynamic access port?
None until the port VLAN is determined
Per default the port has to participate in a VLAN election to determine which VLAN a port is assigned to
All VLANs are permitted in a dynamic access port link
VLAN 1 is the default VLAN
Which option describes the limitations of LLDP?
LLDP does not support TLVs
LLDP can discover up to two devices per port
LLDP cannot provide information about VTP
LLDP can discover only windows server
Which database in used to determine the validity of an ARP packet based on a valid IP-to-MAC address binding?
DHCP snooping database
Dynamic routing database
Static ARP database
Dynamic ARP database
Your customer has asked you to come in and verify the operation of routers R1 and R2 which are configured to use HSRP. They have questions about how these two devices will perform in the event of a device failure. What percentage of outgoing traffic from 172.16.10.0/24 subnet is being forwarded through R1?
Which information does the subordinate switch in a stack keep for all the VLANs that are configured on it?
DHCP snooping database
What does the following configuration tell us?
virtual-ip address is 192.168.1.1
Hello time 3 sec, hold time 10 sec
Active router is 192.168.1.2 priority 85
Standby router is local
Track interface f1/0 state decrement 10
192.168.1.2 is active because it has a higher IP address
The standby will take over when it has a higher priority
When f1/0 is down priority with be 80
It is using the default Hello and hold values
Which option shows the expected result if a show vlan command is issued?
Configure a SPAN session to monitor received traffic on interface g0/4 for all VLANs except VLAN 3.
Configure a SPAN session to monitor the received traffic on interface g0/4 only for VLAN .
Configure a SPAN session to monitor the received traffic on interface g0/5 only for VLAN 3.
Configure a SPAN session to monitor the received traffic on interface g0/5 for all VLANs except VLAN 3.
What is the priority value or the VLAN 105 HSRP group DSW2?
An enterprise network has port security sticky enabled on all access ports. A network administrator moves a PC from one office deck to another. After the PC is moved, the network administrator clears port security on the new network switch port securing the PC but the port keeps going back into err-disable mode. Which two factors are possible causes of the issue?
Port security must be disabled on all access ports
Port security sticky is still enabled on the older network switch ports
Port security is still enabled on the older network
Port security sticky exists on the new network switch port
Port security sticky is disabled on the new network switch port
Which information does CDP supply from connected devices? Choose 3
During routine maintenance it became necessary to shut down the ge1/0/1 interface on DSW1 and DSW2. All other interfaces were up. During this time, DSW1 became the active router for the VLAN 104 HSRP group. As related to the VLAN 104 HARP group, what can be done to make the group function properly.
On DSW1 disable preempt
On DSW1 increase the decrement value in the track command to a value greater than 6.
On DSW1, decrease the decrement value in the track command to a value less than 1.
On DSW2 decrease the priority value to a value less than 150.
What command does an network engineer use to verify the spanning-tree status on VLAN 10?
switch# show spanning-tree summary
switch# show spanning-tree bridge
switch# show spanning-tree brief
switch# show spanning-tree vlan 10
show spanning-tree vlan 10 brief
If HSRP group number is 37, what would the MAC address be?
What statement about SPAN and RSPAN configuration on SW1 is true?
SPAN session 2 monitors all traffic entering and exiting port fa0/15
SPAN session 2 only monitors egress traffic exiting port fa0/14
RSPAN session 1 monitors activity on VLAN 50 of a remote switch
RSPAN session 1 is incompletely configured for monitoring
You are adding new VLAN500 and VLAN600 to the topology in such a way that you need to configure SW1 as primary root for VLAN500 and secondary for VLAN600 and SW2 as root primary for VLAN600 and secondary for VLAN500. Which configuration step is valid?
On SW2 configure VTP mode as off and configure VLAN500 and VLAN600
Configure VLAN500 and VLAN600 on both SW1 and SW2
Configure VLAN 500 and VLAN600 on SW1 only
What happens on a Cisco switch when an RSTP configured switch receives 802.1d BPDU?
802.1d does not understand RSTP BPDUs because they are different versions, but when an RSTP switch receives an 802.1d BPDU, it responds with an 802.1d BPDU and eventually the two switches run 820.1d to communicate
802.1d understands RSTP BPDUs because they are the same version, but when a RSTP switch receives a 802.1d BPDU, it responds with a 802.1d BPDU and eventually the two switches run 802.1d to communicate.
802.1d does not understand RSTP BPDUs because they are different versions, but when a RSTP switch receives a 802.1d BPDU, it does not respond with a 802.1d BPDU.
802.1d understands RSTP BPDUs because they are the same version, but when a RSTP switch receives a 802.1d BPDU, it does not respond with a 802.1d BPDU and eventually the two switches run 802.1d to communicate.
MAC address filter
DHCP snooping and IP Source Guard have been configured on a switch that connects to several clients workstations. The IP address of one of the workstations does not match any entries found in the DHCP binding database. Which statement describes the outcome of this scenario?
Packets from the workstation will be rate limited according to the default values set on the switch.
The packets originating from the workstation are assumed to be spoofed and will be discarded.
Traffic will pass accordingly after the new IP address is populated into the binding database.
The interface that is connected to the workstation is question will be put into the err-disable state.
A new network that consists of several switches has been connected together via trunking interfaces. If all the switches currently have the default VTP domain name "null", which statement describes what happens what a domain name is configured on one of the switches?
The switch with the non-default domain name restores back to "null" upon reboot.
Switches with higher revision numbers does not accept the new domain name
All other switches with the default domain name become VTP clients
VTP summary advertisements are sent out of all ports with the new domain name.
Which statement about Cisco devices learning about each other through CDP is true?
Each device sends periodic advertisements to a central device that builds the network topology
Each device sends periodic advertisements to multicast address 01:00:0C:CC:CC:CC
Each device sends periodic advertisements to all IP addresses in its ARP table.
Each device broadcasts periodic advertisements to all of its neighbors.
When you configure private VLANs on a switch which port type connects the switch to the gateway router?
Which EtherChannel negotiation protocol is configured on the interface f0/13 - f0/15
To provide security a service provider configured various private VLANs in its backbone network infrastructure to prevent certain VLAN communicating to each other. Which version of VTP supports the use of private VLANs?
VTP does not support private VLANs
All ports are members of VLAN 10. Considering the default cost of upstream bridges to the root bridge is equal, which option will be the new root port for VLAN 10?
What action should a network admin take to enable VTP pruning on an entire management domain?
Enable VTP pruning on any switch in the management domain
Enable VTP pruning on any client switch in the domain
Enable VTP pruning on a VTP server in the management domain
Enable VTP pruning on every switch in the domain
None of the other alternatives apply
Which HSRP extension allows groups to share traffic loads?
What is the default value for spanning-tree port-priority?
A network engineer has just deployed a non-Cisco device in the network and wants to get information about it from a connected device. CDP is not supported , so the standard protocol must be configured. Which protocol does the network engineer configure on both devices to accomplish this?
What is the size of the VLAN field inside an 820.1q frame?
After implementing VTP, the extended VLANs are not being propagated to other VTP switches. What should be configured for extended VLANs?
Enable VTP version 3 which supports extended VLAN propagation
VTP authentication is required when using extended VLANs because of their ability to cause network instability
VTP does not support extended VLANs and should be manually added to all switches
Ensure that all switches run the same Cisco IOS version. Exteneded VLANs will not propagate to different IOS versions when extended VLANs are in use.
What is the default interval at which Cisco devices send CDP advertisements?
Private VLANs (PVLANs) have two secondary VLAN types. What are they?