midterm 3

Which two protocols are link aggregation protocols? (Choose two.)

-802.3ad -PAgP

What are three advantages of using EtherChannel technology? (Choose three.)

-A spanning tree recalculation is not required when a single link within the channel goes down -There is no need to upgrade links to faster connections to increase bandwidth -Configuration tasks can be done on the EtherChannel interface

Which four steps are needed to configure a voice VLAN on a switch port? (Choose four).

-Add a voice VLAN. -Ensure that voice traffic is trusted and tagged with a CoS priority value -Configure the switch port in access mode. -Assign the voice VLAN to the switch port.

Which is true of VLAN 1? (Choose all that apply.)

-All switch ports are assigned to VLAN 1 by default. -The native VLAN is VLAN 1 by default. -The management VLAN is VLAN 1 by default. -VLAN 1 cannot be renamed or deleted.

What are two requirements to be able to configure an EtherChannel between two switches? (Choose two.)

-All the interfaces need to work at the same speed. -All the interfaces need to be working in the same duplex mode.

Which two DHCPv4 messages are sent by the server in the lease obtaining process? (Choose two.)

-DCHPOFFER -DHCPACK

Which protocol automates assignment of IP addresses on a network, and which port number does it use? (Choose two.)

-DHCP -67

A DHCP-enabled client PC has just booted. During which two steps will the client PC use broadcast messages when communicating with a DHCP server? (Choose two.)

-DHCPDISCOVER -DHCPREQUEST

Which two DHCPv4 messages are used in the lease renewal process? (Choose two.)

-DHCPREQUEST -DHCPACK

Which three DHCPv6 roles can a router perform? (Choose all that apply.) DHCPv6 client

-DHCPv6 client -DHCPv6 relay agent -DHCPv6 server

What two methods can be used to generate an interface ID by an IPv6 host that is using SLAAC? (Choose two.)

-EUI-64 -random generation

Which two statements are true about half-duplex and full-duplex communications? (Choose two.)

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

A network administrator is overseeing the implementation of first hop redundancy protocols. Which two protocols are Cisco proprietary? (Choose two.)

-GLBP -HSRP

A user needs to add redundancy to the routers in a company. What are the three options the user can use? (Choose three.)

-GSRP -HSRP -VRRP

Refer to the exhibit. A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PCs on different VLANs cannot communicate. Based on the output, what are two configuration errors on switch interface Gi1/1? (Choose two.)

-Gi1/1 is configured as trunk mode -Gi1/1 is in the default VLAN

Which FHRPs are Cisco-proprietary? (Choose two.)

-HSRP -HSRP for IPv6

Which two protocols provide gateway redundancy at Layer 3? (Choose two.)

-HSRP -VRRP

When first hop redundancy protocols are used, which two items will be shared by a set of routers that are presenting the illusion of being a single router? (Choose two.)

-IP address -MAC address

What are two characteristics of the SLAAC method for IPv6 address configuration? (Choose two.)

-IPv6 addressing is dynamically assigned to clients through the use of ICMPv6 -The default gateway of an IPv6 client of a LAN will be link-local address of the router interface attached to the LAN

What are two advantages of using LACP? (Choose two.)

-It allows the use of multivendor devices -.It allows directly connected switches to negotiate an EtherChannel link.

Which three components are combined to form a bridge ID?

-MAC address -extended system ID -bridge priority

Refer to the exhibit Question 2 Topology. PC2 sends an ARP broadcast frame. Which PCs will receive the ARP broadcast frame? (Choose all that apply.)

-PC3 -PC4 -PC6

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.)

-PortFast -edge port

Which two ICMPv6 messages are used in the SLAAC process? (Choose two.)

-Router Solicitation (RS) -Router Advertisements (RA)

Which tasks can be accomplished by using the command history feature? (Choose two.)

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

What are two advantages of EtherChannel? (Choose two.)

-Spanning Tree Protocol views the physical links in an EtherChannel as one logical connection. -Configuring the EtherChannel interface provides consistency in the configuration of the physical links.

What are two drawbacks to turning spanning tree off and having multiple paths through the Layer 2 switch network? (Choose two.)

-The MAC address table becomes unstable. -Broadcast frames are transmitted indefinitely.

Which two characteristics describe the native VLAN? (Choose two.)

-The native VLAN traffic will be untagged across the trunk link. -The native VLAN provides a common identifier to both ends of a trunk.

Under which two circumstances would a router usually be configured as a DHCPv4 client? (Choose two.)

-The router is intended to be used as a SOHO gateway -This is an ISP requirement

Which two statements are correct with respect to SVI inter-VLAN routing? (Choose two.)

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

Which two parameters must match on the ports of two switches to create a PAgP EtherChannel between the switches? (Choose two.)

-VLAN information -speed

Which combinations of PAgP modes will form an EtherChannel? (Choose all that apply.)

-auto>desirable -on>on

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

Which of the following ports will forward Ethernet frames? (Choose two.)

-designated port -root port

Which two channel group modes would place an interface in a negotiating state using PAgP? (Choose two.)

-desirable -auto

Which two mode combinations would result in the successful negotiation of an EtherChannel? (Choose two.)

-desirable; desirable -active; passive

Which three STP port states are merged into the RSTP discarding port state? (Choose three.)

-disabled -blocking -listening

Which three port states are used by Rapid PVST+? (Choose three.)

-discarding -learning -forwarding

Which two special characteristics do LAN switches use to alleviate network congestion? (Choose two.)

-fast port speeds -fast internal switching

Which are benefits of EtherChannel technology? (Choose all that apply.)

-fault-tolerance -load sharing -increased bandwidth -link redundancy

In which two PVST+ port states are MAC addresses learned? (Choose two.)

-learning -forwarding

Which three are PAgP interface modes? (Choose three.)

-on\ -auto -desirable

Which two network design features require Spanning Tree Protocol (STP) to ensure correct network operation? (Choose two.)

-removing single points of failure with multiple Layer 2 switches -redundant links between Layer 2 switches

What are three primary benefits of using VLANs? (Choose three.)

-security -end user satisfaction -cost reduction

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 running-config

Which two load balancing methods can be implemented with EtherChannel technology? (Choose two.)

-source IP to destination IP -source MAC to destination MAC

Which two statements describe a switch port that is configured with PortFast? (Choose two.)

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

Which two DTP modes will form a trunk with an interface that is configured as dynamic auto? (Choose two.)

-trunk -dynamic desirable

Which three interface parameters must match for an EtherChannel to form? (Choose three.)

-trunking mode -native VLAN -allowed VLANs

Without STP on the Ethernet LAN, which three types of frames could cause a catastrophic loop in the network? (Choose three.)

-uknown unicast -multicast -broadcast

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 -on links that should dynamically attempt trunking

Which router bootup sequence is correct?​

1 - perform the POST and load the bootstrap program 2 - locate and load the Cisco IOS software 3 - locate and load the startup configuration file or enter setup mode

What is the default HSRP priority?

100

Which port speed will be autonegotiated between a host with a 1 Gbps NIC connecting to a Cisco Catalyst 2960 switch with a 100 Mbps port?

100 Mbps

Refer to the exhibit. A network engineer is troubleshooting host connectivity on a LAN that uses a first hop redundancy protocol. Which IPv4 gateway address should be configured on the host?

192.168.2.100

The address pool of a DHCP server is configured with 10.19.44.0/24. The network administrator reserves 6 IP addresses for servers. How many IP addresses are left in the pool to be assigned to other hosts?

248

Refer to the exhibit. PC1 is configured to obtain a dynamic IP address from the DHCP server. PC1 has been shut down for two weeks. When PC1 boots and tries to request an available IP address, which destination IP address will PC1 place in the IP header?

255.255.255.255

What is the destination IP address when an IPv4 host sends a DHCPDISCOVER message?

255.255.255.255

Which destination IPv4 address does a DHCPv4 client use to send the initial DHCP Discover packet when the client is looking for a DHCP server?

255.255.255.255

A small company network has six interconnected Layer 2 switches. Currently all switches are using the default bridge priority value. Which value can be used to configure the bridge priority of one of the switches to ensure that it becomes the root bridge in this design?

28672

What destination UDP port do DHCPv6 clients use to send DHCPv6 messages?

546

A set of switches is being connected in a LAN topology. Which STP bridge priority value will make it least likely for the switch to be selected as the root?

61440

Which spanning tree standard supports only one root bridge so that traffic from all VLANs flows over the same path?

802.1D

How is a DHCPDISCOVER transmitted on a network to reach a DHCP server?

A DHCPDISCOVER message is sent with the broadcast IP address as the destination address

Which statement describes SVIs?

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

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.

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

What is the significant difference between a hub and a Layer 2 LAN switch?

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

What are the flag settings when a host should use the SLAAC only option?

A=1, M=0, O=0

What flag settings combination is used for stateless DHCP?

A=1, M=0, O=1

Which switch component reduces the amount of packet handling time inside the switch?

ASIC

Which statement is true about broadcast and collision domains?

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

When verifying routes, what code is used to identify directly connected routes in the routing table?

C

Refer to the exhibit. A network administrator is configuring an EtherChannel link between two switches, SW1 and SW2. However, the EtherChannel link fails to establish. What change in configuration would correct the problem?

Configure SW2 EtherChannel mode to desirable.

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?

Connect a host to an interface associated with VLAN 99

What method is used by a host to verify an IPv6 address is unique on the local network before assigning that address to an interface?

DAD

What process is used in ICMPv6 for a host to verify that an IPv6 address is unique before configuring it on an interface?

DAD

A host PC is attempting to lease an address through DHCP. What message is sent by the server to let the client know it is able to use the provided IP information?

DHCPACK

Which DHCP IPv4 message contains the following information? Destination address: 255.255.255.255Client IPv4 address: 0.0.0.0Default gateway address: 0.0.0.0Subnet mask: 0.0.0.0

DHCPDISCOVER

Which message is sent by a DHCPv4 client to initiate the lease obtaining process?

DHCPDISCOVER

What kind of message is sent by a DHCPv4 client requesting an IP address?

DHCPDISCOVER broadcast message

As a DHCPv4 client lease is about to expire, what is the message that the client sends the DHCP server?

DHCPREQUEST

Which message does an IPv4 host use to reply when it receives a DHCPOFFER message from a DHCP server?

DHCPREQUEST

A company implements the stateless DHCPv6 method for configuring IPv6 addresses on employee workstations. After a workstation receives messages from multiple DHCPv6 servers to indicate their availability for DHCPv6 service, which message does it send to a server for configuration information?

DHCPv6 INFORMATION-REQUEST

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 sum of all port costs to reach the root and use the path with the lowest cost

Refer to the exhibit. Which switching technology would allow each access layer switch link to be aggregated to provide more bandwidth between each Layer 2 switch and the Layer 3 switch?

EtherChannel

Which statement is true about EtherChannel technology?

EtherChannel uses existing switch ports

How often does a switch send a BPDU?

Every 2 seconds

A company uses DHCP servers to dynamically assign IPv4 addresses to employee workstations. The address lease duration is set as 5 days. An employee returns to the office after an absence of one week. When the employee boots the workstation, it sends a message to obtain an IP address. Which Layer 2 and Layer 3 destination addresses will the message contain?

FF-FF-FF-FF-FF-FF and 255.255.255.255

Which destination IP address is used when an IPv6 host sends a DHCPv6 SOLICIT message to locate a DHCPv6 server?

FF02::2

True or False? If a router with a higher HSRP priority joins the network, it will take over the active router roll from an existing active router which has a lower priority.

False

True or False? It is a best practice to configure the native VLAN as VLAN 1.

False

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?

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

A network engineer is configuring a LAN with a redundant first hop to make better use of the available network resources. Which protocol should the engineer implement?

GLBP

Refer to the exhibit. What protocol can be configured on gateway routers R1 and R2 that will allow traffic from the internal LAN to be load balanced across the two gateways to the Internet?

GLBP

Which FHRP implementation is a Cisco-proprietary protocol that suppports IPv4 load sharing?

GLBP

A network administrator is analyzing the features that are supported by different first-hop router redundancy protocols. Which statement is a feature that is associated with GLBP?

GLBP allows load balancing between routers

What is a potential disadvantage when implementing HSRP as compared to GLBP?

HSRP does not provide load balancing with multiple active routers

A network administrator is analyzing the features that are supported by different first-hop router redundancy protocols. Which statement describes a feature that is associated with HSRP?

HSRP uses active and standby routers.

Refer to the exhibit. A network administrator is configuring RT1 for inter-VLAN routing. The switch is configured correctly and is functional. Host1, Host2, and Host3 cannot communicate with each other. Based on the router configuration, what is causing the problem?

IP addresses on the subinterfaces are incorrectly matched to the VLANs.

Which statement describes the system LED operation on Cisco Catalyst switches?

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

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

It disables a virtual or physical switch interface.

What is the function of STP in a scalable network?

It disables redundant paths to eliminate Layer 2 loops.

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 VLAN number.

What is the most likely scenario in which the WAN interface of a router would be configured as a DHCP client to be assigned a dynamic IP address from an ISP?

It is a SOHO or home broadband router

What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?​

It is a logical interface internal to the router.

What is a characteristic of spanning tree?

It is enabled by default on Cisco switches.

Which statement describes a characteristic of EtherChannel?

It is made by combining multiple physical links that are seen as one link between two switches.

What is a characteristic of a routed port on a Layer 3 switch?

It is not assigned to a VLAN

A network administrator is entering the command ipv6 unicast-routing to start configuring DHCPv6 operation on a router. Which statement describes the function of this command?

It is required for sending ICMPv6 RA messages

Which statement describes HSRP?​

It is used within a group of routers for selecting an active device and a standby device to provide gateway services to a LAN.

A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been generated and applied to the interface, what must the client do before it can begin to use this IPv6 address?

It must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network

What is the purpose of HSRP?

It provides a continuous network connection when a router fails.

Which statement describes a characteristic of GLBP?

It provides automatic rerouting if any router in the group fails

How does an IPv6 client ensure that it has a unique address after it configures its IPv6 address using the SLAAC allocation method?

It sends an ICMPv6 Neighbor Solicitation message with the IPv6 address as the target IPv6

A network administrator configures a router to send RA messages with M flag as 0 and O flag as 1. Which statement describes the effect of this configuration when a PC tries to configure its IPv6 address?

It should use the information that is contained in the RA message and contact a DHCPv6 server for additional information.

A network administrator is analyzing first-hop router redundancy protocols. What is a characteristic of VRRPv3?

It supports IPv6 and IPv4 addressing

What M flag setting indicates that stateful DHCPv6 is used?

M=1

What value determines the root bridge when all switches connected by trunk links have default STP configurations?

MAC address

Refer to the exhibit. Which destination MAC address is used when frames are sent from the workstation to the default gateway?

MAC address of the virtual router

Which protocol provides up to 16 instances of RSTP, combines many VLANs with the same physical and logical topology into a common RSTP instance, and provides support for PortFast, BPDU guard, BPDU filter, root guard, and loop guard?

MST

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?

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

A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

Only devices in VLAN 20 see the frame.

Refer to the exhibit Question 1 Topology. PC1 sends an ARP broadcast frame. Which PC will receive the ARP broadcast frame? PC2

PC4

Refer to the exhibit Question 3 Topology. PC3 sends an ARP broadcast frame. Which PC will receive the ARP broadcast frame?

PC5

Which is the default STP operation mode on Cisco Catalyst switches?

PVST+

Which technology solves the problem of a device being unable to get an IPv4 address from a DHCP server due to STP forwarding delay timers?

PortFast

What DHCPv6 message does a host send to the DHCPv6 server if it is using stateful DHCPv6?

REQUEST

Which protocol was designed to bring faster convergence to STP?

RSTP

Which ICMPv6 message is sent by a host in an attempt to locate an online IPv6enabled router to obtain IPv6 addressing information?

Router Solicitation (RS)

An EtherChannel link using LACP was formed between two switches, S1 and S2. While verifying the configuration, which mode combination could be utilized on both switches?​

S1-passive and S2-active

Refer to the exhibit. Which switch will be the root bridge after the election process is complete?

S2

In which alternative to DHCPv6 does a router dynamically provide IPv6 configuration information to hosts?

SLAAC

Which method best describes stateless DHCP?

SLAAC with stateless DHCPv6 Server

What DHCPv6 message does a host send to look for a DHCPv6 server?

SOLICIT

Which statement describes STP?

STP is a Layer 2 loop prevention protocol for Ethernet LANS.

Refer to each of the scenario topologies. Which statements best describe the different types of inter-VLAN routing solutions? (Choose all that apply.)

Scenario A is a Layer 3 inter-VLAN solution

Refer to each of the scenario topologies. Which statements best describe the different types of inter-VLAN routing solutions? (Choose all that apply.)

Scenario B is a legacy inter-VLAN solution

Refer to each of the scenario topologies. Which statements best describe the different types of inter-VLAN routing solutions? (Choose all that apply.)

Scenario C is a router-on-a-stick inter-VLAN solution

A client device on an Ethernet segment needs an IP address in order to communicate on the network. A DHCP server with IP address 192.168.1.1 has been configured and enabled on the network. How will a client device obtain a usable IP address for this network?

Send a DHCPDISCOVER message to physical address FF-FF-FF-FF-FF-FF.

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?

Switches from other vendors do not support DTP

What is the result of a network technician issuing the command ip dhcp excluded-address 10.0.15.1 10.0.15.15 on a Cisco router?

The Cisco router will exclude 15 IP addresses from being leased to DHCP clients.

What will happen if a network administrator puts a port that is part of an EtherChannel bundle into a different VLAN than the other ports in that bundle?

The EtheChannel will fail

A network administrator is configuring an EtherChannel link between two physical ports on a switch. Which statement describes the result when one of the physical ports fails?

The EtherChannel continues transmitting data with reduced bandwidth

Refer to the exhibit. A network administrator is configuring an EtherChannel link between two switches, SW1 and SW2. Which statement describes the effect after the commands are issued on SW1 and SW2?

The EtherChannel fails to establish.

Refer to the exhibit. An EtherChannel was configured between switches S1 and S2, but the interfaces do not form an EtherChannel. What is the problem?

The EtherChannel was not configured with the same allowed range of VLANs on each interface.

A network administrator has configured an EtherChannel between two switches that are connected via four trunk links. If the physical interface for one of the trunk links changes to a down state, what happens to the EtherChannel?

The EtherChannel will remain functional.

When a client is requesting an initial address lease from a DHCP server, why is the DHCPREQUEST message sent as a broadcast?

The client may have received offers from multiple servers, and the broadcast serves to implicitly decline those other offers

After booting, a client receives an ICMPv6 RA message with the M flag set to 0 and the O flag set to 1. What does this indicate?

The client should automatically configure an IPv6 address and then contact a DHCPv6 server for more information

After a host has generated an IPv6 address by using the DHCPv6 or SLAAC process, how does the host verify that the address is unique and therefore usable?

The host sends an ICMPv6 neighbor solicitation message to the DHCP or SLAAC-learned address and if no neighbor advertisement is returned, the address is considered unique.

What happens to switch ports after the VLAN to which they are assigned is deleted?

The ports stop communicating with the attached devices

A network administrator configured an EtherChannel link with three interfaces between two switches. What is the result if one of the three interfaces is down?

The remaining two interfaces continue to load balance traffic.

Refer to the exhibit. A network administrator is implementing the stateless DHCPv6 operation for the company. Clients are configuring IPv6 addresses as expected. However, the clients are not getting the DNS server address and the domain name information configured in the DHCP pool. What could be the cause of the problem?

The router is configured for SLAAC operation.

Refer to the exhibit. A network administrator is configuring a router for DHCPv6 operation. Which conclusion can be drawn based on the commands?

The router is configured for stateless DHCPv6 operation.

Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0?

The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.

Refer to the exhibit. A router-on-a-stick configuration was implemented for VLANs 15, 30, and 45, according to the show running-config command output. PCs on VLAN 45 that are using the 172.16.45.0 /24 network are having trouble connecting to PCs on VLAN 30 in the 172.16.30.0 /24 network. Which error is most likely causing this problem?​

There is an incorrect IP address configured on GigabitEthernet 0/0.30.

Refer to the exhibit. A network administrator is reviewing port and VLAN assignments on switch S2 and notices that interfaces Gi0/1 and Gi0/2 are not included in the output. Why would the interfaces be missing from the output?

They are configured as trunk interfaces.

What is the purpose of frame buffers on a switch?

They hold traffic, thus alleviating network congestion.

How do switch buffers affect network performance?

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

Refer to the exhibit. The administrator tried to create an EtherChannel between S1 and the other two switches via the commands that are shown, but was unsuccessful. What is the problem?

Traffic cannot be sent to two different switches through the same EtherChannel link.

How is traffic routed between multiple VLANs on a multilayer switch?

Traffic is routed via internal VLAN interfaces

True or False? VLANs can improve security by isolating sensitive data from the rest of the network.

True

True or False? VLANs improve network performance by segmenting broadcast domains.

True

What additional information is contained in the 12-bit extended system ID of a BPDU?

VLAN ID

Which nonproprietary protocol provides router redundancy for a group of routers which support IPv4 LANs?

VRRPv2

Which statement is true about DHCP operation?​

When a device that is configured to use DHCP boots, the client broadcasts a DHCPDISCOVER message to identify any available DHCP servers on the network.​

What is a result when the DHCP servers are not operational in a network?

Workstations are assigned with IP addresses in the 169.254.0.0/16 network.

Which solution would help a college alleviate network congestion due to collisions?

a high port density switch

What is required to perform router-on-a-stick inter-VLAN routing?

a router that is configured with multiple subinterfaces

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?

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?

a separate VLAN is needed for voice traffic

When a range of ports is being configured for EtherChannel, which mode will configure LACP so that it initiates the EtherChannel negotiation?

active

Which command is not configured in stateless DHCPv6?

address prefix ipv6-address/prefix

Refer to the exhibit. What are the possible port roles for ports A, B, C, and D in this RSTP-enabled network?

alternate, designated, root, root

Which sentence correctly describes the SVI inter-VLAN routing method?

an SVI is needed to each VLAN

Which impact does adding a Layer 2 switch have on a network?

an increase in the size of the broadcast domain

When a range of ports is being configured for EtherChannel by the use of PAgP, which mode will form the bundled channel only if the port receives PAgP packets from another device?

auto

Which filtering expression will show all output lines starting from the line matching the filtering expression?

begin

Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?

boot system

Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?

broadcast DHCPREQUEST

Which address does a DHCPv4 server target when sending a DHCPOFFER message to a client that makes an address request?

client hardware address

An administrator issues the commands: Router(config)# interface g0/1Router(config-if)# ip address dhcp What is the administrator trying to achieve?

configuring the router to obtain IP parameter from DHCPv4 server

Which function is provided by EtherChannel?

creating one logical link by using multiple physical links between two LAN switches

What type of Ethernet cable would be used to connect one switch to another switch when neither switch supports the auto-MDIX feature?

crossover

What type of device routes traffic destined to network segments beyond the source network segment for which the sending node may not have explicit routing information?

default gateway

A switch is configured to run STP. What term describes a non-root port that is permitted to forward traffic on the network?

designated port

The port on the segment (with two switches) that has the lowest path cost to the root bridge is the:

designated port

What is an accurate description of redundancy?

designing a network to use multiple paths between switches to ensure there is no single point of failure

Refer to the exhibit. An administrator wants to form an EtherChannel between the two switches by using the Port Aggregation Protocol. If switch S1 is configured to be in auto mode, which mode should be configured on S2 to form the EtherChannel?

desirable

When a range of ports is being configured for EtherChannel, which mode will configure PAgP so that it initiates the EtherChannel negotiation?

desirable

Which PAgP interface mode will initiate negotiation with other interfaces?

desirable

What is one function of a Layer 2 switch?

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

If more than one DHCP server is available on the local network, in which order will DHCP messages be sent between a host and a DHCP server?

discover, offer, request, acknowledgement

What is a disadvantage of using router-on-a-stick inter-VLAN routing?

does not scale well beyond 50 VLANs

Which is a DHCPv4 address allocation method that assigns IPv4 addresses for a limited lease period?

dynamic allocation

What is the default switchport mode for Cisco Catalyst switches?

dynamic auto

What is the reason that an ISP commonly assigns a DHCP address to a wireless router in a SOHO environment?

easy IP address management

What advantage does SSH offer over Telnet?

encryption

True or False? FastEthernet and GigabitEthernet links can be combined into a single EtherChannel.

false

True or False? PAgP and LACP are both Cisco-proprietary link aggregation protocols.

false

True or false? DTP is an open standard IEEE protocol that specifies auto negotiation of switch trunk links.

false

True or false? Two switchports on a link both configured as dynamic auto will successfully negotiate a trunk.

false

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

flash

In which location are the normal range VLANs stored on a Cisco switch by default?

flash memory

Which port state will switch ports immediately transition to when configured for PortFast?

forwarding

Which switch characteristic helps alleviate network congestion when a 10 Gbps port is forwarding data to a 1 Gbps port?

frame buffering

Which switch characteristic helps keep traffic local and alleviates network congestion?

high port density

Where is the vlan.dat file stored on a switch?

in flash memory

Which set of commands will configure a router as a DHCP server that will assign IPv4 addresses to the 192.168.100.0/23 LAN while reserving the first 10 and the last addresses for static assignment?

ip dhcp excluded-address 192.168.100.1 192.168.100.10ip dhcp excluded-address 192.168.101.254ip dhcp pool LAN-POOL-100network 192.168.100.0 255.255.254.0default-router 192.168.100.1

An IPv6-enabled router is to acquire its IPv6 GUA from another IPv6 router using SLAAC. Which interface configuration command should be configured on the client router?

ipv6 address autoconfig

An IPv6-enabled router is to acquire its IPv6 GUA from a DHCPv6 server. Which interface configuration command should be configured on client router?

ipv6 address dhcp

Which command should be configured on a router interface to set the router as a stateful DHCPv6 client?

ipv6 address dhcp

Which command is configured on the client LAN interface of the DHCPv6 relay agent?

ipv6 dhcp relay destination

A router is to provide DHCPv6 server services. Which command should be configured on the client facing interface?

ipv6 dhcp server POOL-NAME

Which command must be configured on a router to enable it to join the IPv6 all-routers multicast address ff02::2?

ipv6 unicast-routing

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 only VLAN 30 on Fa0/5

What is the purpose of the vlan.dat file on a switch?

it holds the VLAN database

An IPv6-enabled interface is required to have which type of address?

link-local

Which address type is automatically created by default on a host interface when no RAs are received?

link-local address

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?

listening

What is the first action in the boot sequence when a switch is powered on?

load a power-on self-test program

The root bridge will be the switch with the:

lowest bridge ID

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

management VLAN

What is one way to correct a spanning tree failure?

manually remove redundant links in the switched network

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

Which type of VLAN is assigned to 802.1Q trunk ports to carry untagged traffic?

native

Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port?

native

What type of VLAN supports untagged traffic?

native VLAN

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

native VLAN ID

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?

no shutdown

When EtherChannel is configured, which mode will force an interface into a port channel without exchanging aggregation protocol packets?

on

When a range of ports is being configured for EtherChannel, which mode will configure LACP on a port only if the port receives LACP packets from another device?

passive

What must an administrator have in order to reset a lost password on a router?

physical access to the router

What character is used to enable the filtering of commands?

pipe |

When EtherChannel is implemented, multiple physical interfaces are bundled into which type of logical connection?

port channel

What device is elected by the Spanning Tree Algorithm? All other switches determine a single least-cost path to this device.

root bridge

The sum of individual port costs along the path from the switch to the root bridge is known as the:

root path cost

The port closest to the root bridge in terms of least overall cost (best path) to the root bridge is the:

root port

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

root port

Which device separates broadcast domains?

router

Which network device can serve as a boundary to divide a Layer 2 broadcast domain?

router

Which method would an IPv6-enabled host using SLAAC employ to learn the address of the default gateway?

router advertisements that are received from the link router

Which type of inter-VLAN communication design requires the configuration of multiple subinterfaces?

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

On a Cisco switch, where is extended range VLAN information stored?

running configuration file

Which command displays information about the auto-MDIX setting for a specific interface?

show controllers

Which command will display packet flow counts, collisions, and buffer failures on an interface?

show interface

You are troubleshooting an inter-VLAN issue on a switch and need to verify the status of an access port and its access mode VLAN. Which troubleshooting command would you use to do this?

show interface interface-id switchport

Which command will provide information about the status of all interfaces including the number of giants, runts, and collisions on the interface?

show interfaces

You are troubleshooting an inter-VLAN issue on a router and need to verify the status and IP address of all interfaces in a condensed format. Which inter-VLAN routing troubleshooting command would you use to do this?

show ip interface brief

You are troubleshooting an inter-VLAN issue on a switch and need to verify that the subinterfaces are in the routing table. Which inter-VLAN routing troubleshooting command would you use to do this?

show ip route

Which DHCPv6 verification command would display the link-local and GUA assigned address for each active client?

show ipv6 dhcp binding

Which command will display a summary of all IPv6-enabled interfaces on a router that includes the IPv6 address and operational status?

show ipv6 interface brief

An administrator is troubleshooting a switch and wants to verify if it is a root bridge. What command can be used to do this?

show spanning-tree

You are troubleshooting an inter-VLAN issue on a switch and need to check the list of VLANs and their assigned ports. Which inter-VLAN routing troubleshooting command would you use to do this?

show vlan

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

source MAC address

What information is added to the switch table from incoming frames?

source MAC address and incoming port number

During which HSRP state does an interface begin sending periodic hello messages?

speak

What device is part of a virtual router group assigned the role of alternate default gateway?

standby router

Which switching method ensures that the incoming frame is error-free before forwarding?

store-and-forward

Which switching method makes use of the FCS value?

store-and-forward

Which option correctly describes a switching method?

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?

switch

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

switch:

What message informs IPv6 enabled interfaces to use stateful DHCPv6 for obtaining an IPv6 address?

the ICMPv6 Router Advertisement

What information can be verified through the show ip dhcp binding command?

the IPv4 addresses that are assigned to hosts by the DHCP server

By default (without any configuration on a switch), what will determine which switch is the root bridge?

the MAC address of the switch

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

the VLAN ID

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 all switch ports

What does the term "port density" represent for an Ethernet switch?

the number of available ports

What is the value used to determine which port on a non-root bridge will become a root port in a STP network?

the path cost

What happens to a port that is associated with VLAN 10 when the administrator deletes VLAN 10 from the switch?

the port becomes inactive

Which is a characteristic of the HSRP learn state?

the router has not determined the virtual IP address

Which information does a switch use to keep the MAC address table information current?

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 routed port for a single network

A network administrator enters the following command sequence on a Cisco 3560 switch. What is the purpose of these commands? Switch(config)# interface gigabitethernet 0/1Switch(config-if)# no switchport

to make the Gi0/1 port a routed port

What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process?

to notify other DHCP servers on the subnet that the IP address was leased

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

For what reason would a network administrator use the show interfaces trunk command on a switch?

to view the native VLAN

What operational mode should be used on a switch port to connect it to a router for router-on-a-stick inter-VLAN routing?

trunk

Refer to the exhibit. A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What type of port will be required on a switch that is connected to Gi0/0 on router CiscoVille to allow inter-VLAN routing?

trunk port

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?

username username secret secret

In FHRP terminology, what represents a set of routers that present the illusion of a single router to hosts?

virtual router

What device presents the illusion of a single router to hosts on a LAN segment but actually represents a set of routers working together?

virtual router