ExamModule

What value determines the root bridge when all switches connected by trunk links have default STP configurations? VLAN ID MAC address extended system ID bridge priority

MAC address

What is one way to correct a spanning tree failure? Replace the cables on failed STP links. Manually remove redundant links in the switched network. Insert redundant links to replace the failed STP links. Replace all instances of STP with RSTP.

Manually remove redundant links in the switched network.

Which statement describes SVIs? An SVI can only be created for the management VLAN. A default SVI is created for VLAN 1 for switch administration. Creating an SVI automatically creates an associated VLAN. An SVI is created automatically for each VLAN on a multilayer switch.

A default SVI is created for VLAN 1 for switch administration.

actively attempts to convert the link to a trunk

DYNAMIC DESIRABLES

After the election of the root bridge has been completed, how will switches find the best paths to the root bridge? Each switch will analyze the port states of all neighbors and use the designated ports to forward traffic to the root. Each switch will analyze the sum of all port costs to reach the root and use the path with the lowest cost. Each switch will analyze the sum of the hops to reach the root and use the path with the fewest hops. Each switch will analyze the BID of all neighbors to reach the root and use the path through the lowest BID neighbors.

Each switch will analyze the sum of all port costs to reach the root and use the path with the lowest cost.

1) Which message is displayed when 10.10.10.1 is entered into the PC1 Web Browser address bar? A. Local Server B. Test Server C. File Server D. Cisco Server

File server

What will a Cisco LAN switch do if it receives an incoming frame and the destination MAC address is not listed in the MAC address table? Send the frame to the default gateway address. Use ARP to resolve the port that is related to the frame. Drop the frame. Forward the frame out all ports except the port where the frame is received.

Forward the frame out all ports except the port where the frame is received.

Which statement is correct about Ethernet switch frame forwarding decisions? Frame forwarding decisions are based on MAC address and port mappings in the CAM table. Cut-through frame forwarding ensures that invalid frames are always dropped. Only frames with a broadcast destination address are forwarded out all active switch ports. Unicast frames are always forwarded regardless of the destination MAC address.

Frame forwarding decisions are based on MAC address and port mappings in the CAM table.

Which characteristic describes cut-through switching? Error-free fragments are forwarded, so switching occurs with lower latency. Frames are forwarded without any error checking. Only outgoing frames are checked for errors. Buffering is used to support different Ethernet speeds.

Frames are forwarded without any error checking.

Which two statements are true about half-duplex and full-duplex communications? (Choose two.) Half duplex has only one channel. Full duplex increases the effective bandwidth. Full duplex allows both ends to transmit and receive simultaneously. Full duplex offers 100 percent potential use of the bandwidth. All modern NICS support both half-duplex and full-duplex communication.

Full duplex increases the effective bandwidth. Full duplex allows both ends to transmit and receive simultaneously.

When a Cisco switch receives untagged frames on a 802.1Q trunk port, which VLAN ID is the traffic switched to by default? management VLAN ID data VLAN ID native VLAN ID unused VLAN ID

native VLAN ID

Which switching method makes use of the FCS value? broadcast large frame buffer store-and-forward cut-through

store-and-forward

Which option correctly describes a switching method? cut-through: makes a forwarding decision after receiving the entire frame cut-through: provides the flexibility to support any mix of Ethernet speeds store-and-forward: forwards the frame immediately after examining its destination MAC address store-and-forward: ensures that the frame is free of physical and data-link errors

store-and-forward: ensures that the frame is free of physical and data-link errors

Which network device can be used to eliminate collisions on an Ethernet network? hub firewall switch router

switch

Which prompt is displayed when a network administrator successfully accesses the boot loader on a switch to recover from a system crash? switch# system# system: switch:

switch:

What is the meaning of the number 10 in the encapsulation dot1Q 10 native router subinterface command?​ the subinterface number the interface number the VLAN ID the subnet number

the VLAN ID

1) A network administrator issues the show vlan brief command while troubleshooting a user support ticket. What output will be displayed? the VLAN assignment and membership for device MAC addresses the VLAN assignment and membership for all switch ports the VLAN assignment and trunking encapsulation the VLAN assignment and native VLAN

the VLAN assignment and membership for all switch ports

What does the term "port density" represent for an Ethernet switch? the memory space that is allocated to each switch port the number of available ports the speed of each port the numbers of hosts that are connected to each switch port

the number of available ports

Which router bootup sequence is correct?​ 1 - perform the POST and load the bootstrap program2 - locate and load the Cisco IOS software3 - locate and load the startup configuration file or enter setup mode 1 - perform the POST and load the startup configuration file2 - locate and load the bootstrap program3 - locate and load the Cisco IOS software 1 - perform the POST and load the bootstrap program2 - locate and load the startup configuration file or enter setup mode3 - locate and load the Cisco IOS software 1 - perform the POST and load the Cisco IOS software2 - locate and load the startup configuration file or enter setup mode3 - locate and load the bootstrap program

1 - perform the POST and load the bootstrap program2 - locate and load the Cisco IOS software3 - locate and load the startup configuration file or enter setup mode

1) What is the significant difference between a hub and a Layer 2 LAN switch? A hub extends a collision domain, and a switch divides collision domains. A hub divides collision domains, and a switch divides broadcast domains. Each port of a hub is a collision domain, and each port of a switch is a broadcast domain. A hub forwards frames, and a switch forwards only packets. 12) Which statement is correct about Ethernet switch frame forwarding decisions?

A hub extends a collision domain, and a switch divides collision domains.

A small college uses VLAN 10 for the classroom network and VLAN 20 for the office network. What is needed to enable communication between these two VLANs while using legacy inter-VLAN routing? Two groups of switches are needed, each with ports that are configured for one VLAN. A router with at least two LAN interfaces should be used. A router with one VLAN interface is needed to connect to the SVI on a switch. A switch with a port that is configured as trunk is needed to connect to a router.

A router with at least two LAN interfaces should be used.

) If an organization is changing to include Cisco IP phones in its network, what design feature must be considered to ensure voice quality? Voice traffic needs to be tagged with the native VLAN. A separate VLAN is needed for voice traffic. Voice traffic and data traffic require separate trunk links between switches. Additional switch ports that are dedicated to Cisco IP phones are required.

A separate VLAN is needed for voice traffic.

What is the purpose of setting the native VLAN separate from data VLANs? A separate VLAN should be used to carry uncommon untagged frames to avoid bandwidth contention on data VLANS. The security of management frames that are carried in the native VLAN can be enhanced. The native VLAN is for carrying VLAN mnanagement traffic only. The native VLAN is for routers and switches to exchange their management information, so it should be different from data VLANS.

A separate VLAN should be used to carry uncommon untagged frames to avoid bandwidth contention on data VLANS.

What is the significant difference between a hub and a Layer 2 LAN switch? A hub divides collision domains, and a switch divides broadcast domains. Each port of a hub is a collision domain, and each port of a switch is a broadcast domain. A switch creates many smaller collision domains, and a hub increases the size of a single collision domain. A hub forwards frames, and a switch forwards only packets.

A switch creates many smaller collision domains, and a hub increases the size of a single collision domain.

A high school uses VLAN15 for the laboratory network and VLAN30 for the faculty network. What is required to enable communication between these two VLANs while using the router-on-a-stick approach? A multilayer switch is needed. A router with at least two LAN interfaces is needed. Two groups of switches are needed, each with ports that are configured for one VLAN. A switch with a port that is configured as a trunk is needed when connecting to the router

A switch with a port that is configured as a trunk is needed when connecting to the router

What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?​ A. The no shutdown command is required to place this interface in an UP state.​ B. It is a logical interface internal to the router. C. Only one loopback interface can be enabled on a router.​ D. It is assigned to a physical port and can be connected to other devices

A. It is a logical interface internal to the router.

Which statement is true about broadcast and collision domains? The size of the collision domain can be reduced by adding hubs to a network. Adding a switch to a network will increase the size of the broadcast domain. Adding a router to a network will increase the size of the collision domain. The more interfaces a router has the larger the resulting broadcast domain.

Adding a switch to a network will increase the size of the broadcast domain.

During the implementation of Spanning Tree Protocol, all switches are rebooted by the network administrator. What is the first step of the spanning-tree election process? All the switches send out BPDUs advertising themselves as the root bridge. Each switch determines the best path to forward traffic. Each switch determines what port to block to prevent a loop from occurring. Each switch with a lower root ID than its neighbor will not send BPDUs.

All the switches send out BPDUs advertising themselves as the root bridge.

Refer to the exhibit. All workstations are configured correctly in VLAN 20. Workstations that are connected to switch SW1 are not able to send traffic to workstations on SW2. What could be done to remedy the problem? Allow VLAN 20 on the trunk link. Enable DTP on both ends of the trunk. Configure all workstations on SW1 to be part of the default VLAN. Configure all workstations on SW2 to be part of the native VLAN.

Allow VLAN 20 on the trunk link.

Which sentence correctly describes the SVI inter-VLAN routing method? Subinterfaces have to be created. A physical interface is needed for every VLAN that is created. An SVI is needed for each VLAN. The encapsulation type must be configured on the SVI.

An SVI is needed for each VLAN.

A network administrator has configured ​VLAN 99 as the management VLAN and has configured it with an IP address and subnet mask. The administrator issues the show interface vlan 99 command and notices that the line protocol is down. Which action can change the state of the line protocol to up? Configure a transport input method on the vty lines. Connect a host to an interface associated with VLAN 99. Remove all access ports from VLAN 99. Configure a default gateway

Connect a host to an interface associated with VLAN 99.

Which statement describes the system LED operation on Cisco Catalyst switches? If the LED is amber, the system is not powered on. If the LED is blinking amber, the switch is performing POST. If the LED is blinking green, the system is operating normally. If the LED is amber, the system is receiving power but it is not functioning properly.

If the LED is amber, the system is receiving power but it is not functioning properly.

A Cisco switch currently allows traffic tagged with VLANs 10 and 20 across trunk port Fa0/5. What is the effect of issuing a switchport trunk allowed vlan 30 command on Fa0/5? It allows a native VLAN of 30 to be implemented on Fa0/5. It allows VLANs 10, 20, and 30 on Fa0/5. It allows only VLAN 30 on Fa0/5. It allows VLANs 1 to 30 on Fa0/5.

It allows only VLAN 30 on Fa0/5.

) A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# mdix auto command? A. It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable. B. It applies an IPv4 address to the virtual interface. C. It applies an IPv6 address to the virtual interface. D. It permits an IPv6 address to be configured on a switch physical interface. E. It updates the MAC address table for the associated port.

It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.

What is the purpose of the vlan.dat file on a switch? It holds the VLAN database. It holds the running configuration. It holds the operating system. It holds the saved configuration.

It holds the VLAN database.

1) Refer to the exhibit. A network administrator is configuring inter-VLAN routing on a network. For now, only one VLAN is being used, but more will be added soon. What is the missing parameter that is shown as the highlighted question mark in the graphic? It identifies the subinterface. It identifies the VLAN number. It identifies the native VLAN number. It identifies the type of encapsulation that is used. It identifies the number of hosts that are allowed on the interface.

It identifies the VLAN number.

1) Refer to the exhibit. The network administrator wants to configure Switch1 to allow SSH connections and prohibit Telnet connections. How should the network administrator change the displayed configuration to satisfy the requirement? Use SSH version 1. Reconfigure the RSA key. Configure SSH on a different line. Modify the transport input command

Modify the transport input command

What is a disadvantage of using multilayer switches for inter-VLAN routing? Multilayer switches are more expensive than router-on-a-stick implementations. Multilayer switches have higher latency for Layer 3 routing. Spanning tree must be disabled in order to implement routing on a multilayer switch. Multilayer switches are limited to using trunk links for Layer 3 routing.

Multilayer switches are more expensive than router-on-a-stick implementations.

1) Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port? A. data B. default C. native D. management

Native

A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame? A. All devices in all VLANs see the frame. B. Devices in VLAN 20 and the management VLAN see the frame. C. Only devices in VLAN 20 see the frame. D. Only devices that are connected to the local switch see the frame.

Only devices in VLAN 20 see the frame.

Which is the default STP operation mode on Cisco Catalyst switches? MST PVST+ Rapid PVST+ MSTP RSTP

PVST+

Which two concepts relate to a switch port that is intended to have only end devices attached and intended never to be used to connect to another switch? (Choose two.) bridge ID PortFast edge port extended system ID PVST+

PortFast edge port

27) Which protocol adds security to remote connections? FTP HTTP NetBEUI POP SSH

SSH

Which tasks can be accomplished by using the command history feature? (Choose two.) Set the command history buffer size. Recall previously entered commands. View a list of commands entered in a previous session. Recall up to 15 command lines by default. Save command lines in a log file for future reference

Set the command history buffer size. Recall previously entered commands.

An administrator is investigating a failure on a trunk link between a Cisco switch and a switch from another vendor. After a few show commands, the administrator notices that the switches are not negotiating a trunk. What is a probable cause for this issue? Both switches are in nonegotiate mode. Switches from other vendors do not support DTP. Both switches are in trunk mode. DTP frames are flooding the entire network.

Switches from other vendors do not support DTP.

1) Which two statements are correct with respect to SVI inter-VLAN routing? (Choose two.) Switching packets is faster with SVI. There is no need for a connection to a router. Virtual interfaces support subinterfaces. SVIs can be bundled into EtherChannels.

Switching packets is faster with SVI. There is no need for a connection to a router.

What happens to a port that is associated with VLAN 10 when the administrator deletes VLAN 10 from the switch? The port creates the VLAN again. The port goes back to the default VLAN. The port automatically associates itself with the native VLAN. The port becomes inactive

The port becomes inactive

Which two statements describe a switch port that is configured with PortFast? (Choose two.) The switch port immediately transitions from the listening to the forwarding state. The switch port immediately transitions from blocking to the forwarding state. The switch port sends DHCP requests before transitioning to the forwarding state. The switch port immediately processes any BPDUs before transitioning to the forwarding state. The switch port should never receive BPDUs.

The switch port immediately transitions from blocking to the forwarding state. The switch port should never receive BPDUs.

What is the purpose of frame buffers on a switch? They execute checksum values before transmission. They provide temporary storage of the frame checksum. They hold traffic, thus alleviating network congestion. They provide a basic security scan on received frames.

They hold traffic, thus alleviating network congestion.

How do switch buffers affect network performance? They provide error checking on the data received. They store frames received, thus preventing premature frame discarding when network congestion occurs. They provide extra memory for a particular port if autonegotiation of speed or duplex fails. They hold data temporarily when a collision occurs until normal data transmission resumes.

They store frames received, thus preventing premature frame discarding when network congestion occurs.

How is traffic routed between multiple VLANs on a multilayer switch? Traffic is routed via internal VLAN interfaces. Traffic is routed via subinterfaces. Traffic is routed via physical interfaces. Traffic is broadcast out all physical interfaces.

Traffic is routed via internal VLAN interfaces.

a value for the tag protocol ID value

Type

a value that supports level or service implementation

USER PRIORITY

a vlan number

Vlan ID

1) Which solution would help a college alleviate network congestion due to collisions? A. a firewall that connects to two Internet providers B. a high port density switch C. a router with two Ethernet ports D. a router with three Ethernet ports

a high port density switch

What is required to perform router-on-a-stick inter-VLAN routing? a multilayer switch a router that is configured with multiple subinterfaces a router with multiple physical interfaces a Layer 2 switch that is configured with multiple trunk ports

a router that is configured with multiple subinterfaces

After which step of the switch bootup sequence is the boot loader executed? after CPU initialization after IOS localization after flash file system initialization after POST execution

after POST execution

A network administrator is determining the best placement of VLAN trunk links. Which two types of point-to-point connections utilize VLAN trunking?​ (Choose two.) between two switches that utilize multiple VLANs between a switch and a server that has an 802.1Q NIC between a switch and a network printer between two switches that share a common VLAN between a switch and a client PC

between two switches that utilize multiple VLANs between a switch and a server that has an 802.1Q NIC

an identifier that enables token ring frames to be carried across ethernet links

canonical format identifier

What are three primary benefits of using VLANs? (Choose three.) end user satisfaction cost reduction a reduction in the number of trunk links security

cost reduction security

What type of Ethernet cable would be used to connect one switch to another switch when neither switch supports the auto-MDIX feature? rollover crossover straight-through coaxialWhat type of Ethernet cable would be used to connect one switch to another switch when neither switch supports the auto-MDIX feature? rollover crossover straight-through coaxial

crossover

What type of VLAN is initially the management VLAN? default VLAN native VLAN data VLAN management VLAN

default VLAN

What is one function of a Layer 2 switch? forwards data based on logical addressing determines which interface is used to forward a frame based on the destination MAC address duplicates the electrical signal of each frame to every port learns the port assigned to a host by examining the destination MAC address

determines which interface is used to forward a frame based on the destination MAC address

What is a disadvantage of using router-on-a-stick inter-VLAN routing? does not scale well beyond 50 VLANs requires the use of more physical interfaces than legacy inter-VLAN routing requires the use of multiple router interfaces configured to operate as access links does not support VLAN-tagged packets

does not scale well beyond 50 VLANs

Passively waits for the neighbor to initiate trunking

dynamic auto

What advantage does SSH offer over Telnet? connection-oriented services more connection lines username and password authentication encryption

encryption

In which memory location are the VLAN configurations of normal range VLANs stored on a Catalyst switch? flash ROM RAM NVRAM

flash

In which location are the normal range VLANs stored on a Cisco switch by default? RAM flash memory startup-config running-config

flash memory

Which port state will switch ports immediately transition to when configured for PortFast? forwarding blocking listening learning

forwarding

Which switch characteristic helps alleviate network congestion when a 10 Gbps port is forwarding data to a 1 Gbps port? high port density fast port speed fast internal switching frame buffering

frame buffering

Where is the vlan.dat file stored on a switch? in NVRAM in flash memory in RAM on the externally attached storage media or internal hard drive

in flash memory

Which three port states are used by Rapid PVST+? (Choose three.) listening blocking trunking learning forwarding discarding

learning forwarding discarding

When PVST is running over a switched network, which port state can participate in BPDU frame forwarding based on BPDUs received, but does not forward data frames? disabled forwarding listening blocking

listening

What is the first action in the boot sequence when a switch is powered on? low-level CPU initialization load boot loader software load the default Cisco IOS software load a power-on self-test program

load a power-on self-test program

Which distinct type of VLAN is used by an administrator to access and configure a switch? data VLAN default VLAN native VLAN management VLAN

management VLAN

A PC is to access a web server on another network. Which inter-VLAN method will provide the highest bandwidth at Layer 3 and also provide a default gateway for the PC? multilayer switch with routing enabled router on a stick trunked interface between the router and the switch multiple physical interfaces on the router, all connected to a Layer 2 switch

multilayer switch with routing enabled

1) Refer to the exhibit. A network administrator has configured R1 as shown. When the administrator checks the status of the serial interface, the interface is shown as being administratively down. What additional command must be entered on the serial interface of R1 to bring the interface up? IPv6 enable clockrate 128000 end no shutdown

no shutdown

requires manual configuration of trunking or nontrunking

nonegotiate

What must an administrator have in order to reset a lost password on a router? access to another router physical access to the router a TFTP server a crossover cable

physical access to the router

Which STP port role is adopted by a switch port if there is no other port with a lower cost to the root bridge? designated port alternate disabled port root port

root port

Which network device can serve as a boundary to divide a Layer 2 broadcast domain? router Ethernet hub access point Ethernet bridge

router

Which type of inter-VLAN communication design requires the configuration of multiple subinterfaces? router on a stick routing for the management VLAN routing via a multilayer switch legacy inter-VLAN routing

router on a stick

Which scalable method must be implemented in order to provide inter-VLAN routing on a switched network with more than 1000 VLANs? routing traffic internally to a Layer 3 switch device configuring static routes on a Layer 2 switch device connecting a router interface to a switch port that is configured in trunk mode to route packets between VLANs, with each VLAN assigned to a router subinterface connecting each physical router interface to a different physical switch port, with each switch port assigned to a different VLAN

routing traffic internally to a Layer 3 switch device

On a Cisco switch, where is extended range VLAN information stored? running configuration file NVRAM flash startup configuration file

running configuration file

Which command will provide information about the status of all interfaces including the number of giants, runts, and collisions on the interface? show interfaces show ip interface brief show history show running-config

show interfaces

Which command displays the encapsulation type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface? show vlan brief show interfaces Fa0/1 switchport show mac address-table interface Fa0/1 show interfaces trunk

show interfaces Fa0/1 switchport

An administrator was troubleshooting a router-on-a-stick topology and concluded that the problem was related to the configuration of VLANs on the router subinterfaces. Which two commands can the administrator use in the router to identify the problem? (Choose two.) show ip interface show ip protocols show controllers show running-config show vlan

show ip interface show running-config

Which type of address does a switch use to build the MAC address table? source IP address source MAC address destination MAC address destination IP address

source MAC address

1) What information is added to the switch table from incoming frames? source MAC address and incoming port number destination MAC address and incoming port number source IP address and incoming port number destination IP address and incoming port number

source MAC address and incoming port number

Which switching method ensures that the incoming frame is error-free before forwarding? cut-through FCS fragment free store-and-forward

store-and-forward

Which information does a switch use to keep the MAC address table information current? the source MAC address and the incoming port the source and destination MAC addresses and the incoming port the source and destination MAC addresses and the outgoing port the destination MAC address and the incoming port the source MAC address and the outgoing port the destination MAC address and the outgoing port

the source MAC address and the incoming port

While configuring inter-VLAN routing on a multilayer switch, a network administrator issues the no switchport command on an interface that is connected to another switch. What is the purpose of this command? to create a switched virtual interface to create a routed port for a single network to provide a static trunk link to provide an access link that tags VLAN traffic

to create a switched virtual interface

A network administrator enters the following command sequence on a Cisco 3560 switch. What is the purpose of these commands? Switch(config)# interface gigabitethernet 0/1 Switch(config-if)# no switchport to enable the Gi0/1 port as a switch virtual interface to enable the Gi0/1 port as a bridge virtual interface to make the Gi0/1 port a routed port to shut down the Gi0/1 port

to make the Gi0/1 port a routed port

When configuring a router as part of a router-on-a-stick inter-VLAN routing topology, where should the IP address be assigned? to the subinterface to the interface to the SVI to the VLAN

to the subinterface

For what reason would a network administrator use the show interfaces trunk command on a switch? to view the native VLAN to examine DTP negotiation as it occurs to display an IP address for any existing VLAN to verify port association with a particular VLAN

to view the native VLAN

Refer to the exhibit. In what switch mode should port G0/1 be assigned if Cisco best practices are being used? A. access B. trunk C. native D. auto

trunk

hat operational mode should be used on a switch port to connect it to a router for router-on-a-stick inter-VLAN routing? dynamic auto trunk access dynamic desirable

trunk

permanent trunking mode

trunk

When configuring a switch for SSH access, what other command that is associated with the login local command is required to be entered on the switch? login block-for seconds attempts number within seconds enable secret password username username secret secret password password

username username secret secret

Under which two occasions should an administrator disable DTP while managing a local area network? (Choose two.) when connecting a Cisco switch to a non-Cisco switch when a neighbor switch uses a DTP mode of dynamic auto when a neighbor switch uses a DTP mode of dynamic desirable on links that should not be trunking on links that should dynamically attempt trunking

when connecting a Cisco switch to a non-Cisco switch on links that should not be trunking