CTS2561 Midterm

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

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

Which statement describes SVIs?

A default SVI is created for VLAN 1 for switch administration

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

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.

Which statement is true about broadcast and collision domains?

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

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

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 BPDU's advertising themselves as the root bridge

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

C

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

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 recieved.

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

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

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

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

MAC address

What is a disadvantage of using multilayer switches for inter-VLAN routing?

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

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 (the PC's on the same VLAN)

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

PC4 (the PC's on the same VLAN)

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

PC5 (the PC's on the same VLAN)

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

Which protocol was designed to bring faster convergence to STP?

RSTP

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 4 inter-VLAN solution | Scenario B is a legacy inter-VLAN solution | Scenario C is a router-on-a-stick inter-VLAN solution

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

Set the command history buffer size, Recall previously entered commands

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 purpose of frame buffers on a switch?

They hold traffic, thus alleviating network congestion

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

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

Unknown unicast, multicast, broadcast

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

an SVI is needed for each VLAN

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

begin

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 an 802.1Q NIC | between two switches that utilize multiple VLANs

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

crossover

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

designated port

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

designated port | root port

What is one function of a Layer 2 switch?

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

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

disabled, blocking, listening

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

does not scale well beyond 50 VLANs

What is the default switchport mode for Cisco Catalyst switches?

dynamic auto

What advantage does SSH offer over Telnet?

encryption

How often does a switch send a BPDU?

every 2 seconds

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

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

fast port speeds | fast internal switching

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

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

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

in flash memory

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

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

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

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

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 |

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 device separates broadcast domains?

router

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

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

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

security, cost reduction

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

show interface

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 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 interfaces interface-id switchport

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

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

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 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

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

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:

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

the VLAN ID

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

the number of available ports

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 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. Switch(config)# interface gigabitethernet 0/1 Switch(config-if)# no switchport What is the purpose of these commands?

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

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

to view the native VLAN

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

traffic is routed via internal VLAN interfaces

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

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

trunk, dynamic desirable

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

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

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