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Part 2 Review

Which of the following statements describes part of the process of how a switch decides to forward a frame destined for a known unicast MAC address?

It compares the unicast destination address to the bridging, or MAC address, table

It compares the unicast source address to the bridging, or MAC address, table

It forwards the frame out all interfaces in the same VLAN except for the incoming interface

It compares the destination IP address to the destination MAC address

It compares the frame's incoming interface to the source MAC entry in the MAC address table

Which of the following statements describes part of the process of how a LAN switch decides to forward a frame destined for a broadcast MAC address?

It compares the unicast destination address to the bridging, or MAC address, table

It compares the unicast source address to the bridging, or MAC address, table

It forwards the frame out all interfaces in the same VLAN except for the incoming interface

It compares the frame's incoming interface to the source MAC entry in the MAC address table

Which of the following statements best describes what a switch does with a frame destined for an unknown unicast address?

It forwards out all interfaces in the same VLAN except for the incoming interface

It forwards the frame out the one interface identified by the matching entry in the MAC address table

It compares the destination IP address to the destination MAC address

It compares the frame's incoming interface to the source MAC entry in the MAC address table

Which of the following comparisons does a switch make when deciding whether a new MAC address should be added to its MAC address table?

It compares the unicast destination address to the bridging, or MAC address, table

It compares the unicast source address It compares the unicast source address to the bridging, or MAC address, table

It compares the VLAN ID to the bridging, or MAC address, table

It compares the destination IP address's ARP cache entry to the bridging, or MAC address, table

PC1, with MAC address 1111.1111.1111, is connected to Switch SW1's Fa0/1 interface PC2, with MAC address 2222.2222.2222, is connected to SW1's Fa0/2 interface. PC3 with MAC adress 3333.3333.3333, connects to SW1's Fa0/3 interface. The switch begins with no dynamically learned MAC addresses, followed by PC1 sending a frame with a destination address of 2222.2222.2222. If the next frame to reach the switch is a frame sent by PC3, destined for PC2's MAC address of 2222.2222.2222, which of the following are true? (Choose Two)

The switch forwards the frame out the interface Fa0/1

The switch fowards the frame out the interface Fa0/2

The switch forwards the frame out the interface Fa0/3

The switch discards (filters) the frame

Which of the following devices would be in the same collision domain as PC1?

PC2, which is separated from PC1 by an Ethernet hub

PC3, which is separated from PC1 by a transparent bridge

PC4, which is separated from PC1 by an Ethernet switch

PC5, which is separated from PC1 by a router

Which of the following devices would be in the same broadcast domain as PC1? (Choose Three)

PC2, which is separated from PC1 by an Ethernet hub

PC3, which is separated from PC1 by a transparent bridge

PC4, which is separated from PC1 by an Ethernet switch

PC5, which is separated from PC1 by a router

Which of the following Ethernet standards support a maximum cable length of longer than 100 meters? (Choose Two)

100BASE-T

1000BASE-LX

1000BASE-T

1000BASE-FX

A Cisco LAN switch connects to three PCs (PC1, PC2, and PC3), each directly using a cable that supports Ethernet UTP speeds up through 1000 mbps (1 Gbps). PC1 uses a NIC that supports only 10BASE-T, while PC2 has a 10/100 NIC, and PC3 has a 10/100/1000 NIC. Assuming that the PCs and the switch use IEEE autonegotiation, which PCs will use half-duplex?

PC1

PC2

PC3

None of the PCs will use half-duplex

In what modes can you execute the command (show mac-address-table)? (Choose Two)

User mode

Enable mode

Global configuration mode

Interface configuration mode

In which of the following modes of the CLI could you issue the command (reload) to reboot the switch?

User mode

Enable mode

Global configuration mode

Interface configuration mode

Which of the following is a difference between Telnet and SSH as supported by a Cisco switch?

SSH encrypts the passwords used at login, but not other traffic; Telnet encrypts nothing

SSH encrypts all data exchange, including login passwords; Telnet encrypts nothing

Telnet is used from Microsoft operating systems, and SSH is used from UNIX and Linux operating systems

Telnet encrypts only passwords exchanges; SSH encrypts all data exchanges

What type of switch memory is used to store the configuration used by the switch when it is up and working?

RAM

ROM

Flash

NVRAM

Bubble

What command copies the configuration from RAM into NVRAM?

Copy running-config tftp

Copy tftp running-config

Copy running-config start-up-conifig

Copy start-up-config running-config

Copy startup-config running config

Copy running-config startup-config

A switch user is currently in console line configuration mode. Which of the following would place the user in enable mode? (Choose Two)

Using the (exit) command once

Using the (end) command once

Pressing the Ctrl-Z key sequence once

Using the (quit) command

Imagine that you have configured the (enable secret) command, followed by the (enable password) command, from the console. You log out of the switch and log back in at the console. Which command defines the password that you had to enter to access privileged mode?

Enable password

Enable secret

Neither

The (password) command, if it's configured

An engineer had formerly configured a Cisco 2960 switch to allow Telnet access so that the switch expected a password of mypassword from the Telnet user. The engineer then changed the configuration to support Secure Shell. Which of the following commands could have been part of the new configuration? (Choose Two)

A (username) name (password) password vty mode subcommand

A (username) name (password) password global configuration command

A login local vty mode subcommand

A transport input ssh global configuration command

The following command was copied and posted into configuration mode when a user was telnetted into a Cisco switch: (banner login this is the login banner). Which of the following is true about what occurs the next time a user logs in from the console?

No banner text is displayed

The banner text "his is" is displayed

The banner text "this is the login banner" is displayed

The banner text "Login banner configured, no text defined" is displayed

Which of the following is required when configuring port security with sticky learning?

Setting the maximum number of allowed MAC addresses on the interface with the (switchport port-security maximum) interface subcommand

Enabling port security with the (switchport port-security) interface subcommand

Defining the specific allowed MAC addresses using the (switchport port-security mac-address) interface subcommand

All the other answers list required commands

An engineer's desktop PC connects to a switch at the main site. A router at the main site connects to each branch office through a serial link, with one small router and switch at each branch. Which of the following commands must be configured on the branch office switches, in the listed configuration mode, to allow the engineer to telnet to the branch office switches? (Choose Three)

The (ip-address) command in interface configuration mode

The (ip-address) command in global configuration mode

The (ip default-gateway) command in VLAN configuration mode

The (ip default-gateway) command in global configuration mode

The (password) command in console line configuration mode

The (password) command in vty line configuration mode

Which of the following describes a way to disable IEEE standard autonegotiation on 10/100 port on a Cisco switch?

Configure the (negotiate disable) interface subcommand

Configure the (no negotiate) interface subcommand

Configure the (speed 100) interface subcommand

Configure the (duplex half) interface subcommand

Configure the (duplex full) interface subcommand

Configure the (speed 100) and (duplex full) interface subcommands

In which of the following modes of the CLI could you configure the duplex setting for interface Fast Ethernet 0/5?

User mode

Enable mode

Global configuration mode

VLAN mode

Interface configuration mode

In a LAN, which of the following terms best equates to the term VLAN?

Collision domain

Broadcast domain

Subnet

Single switch

Trunk

Imagine a switch with three configured VLANs. How many subnets are required assuming that all hosts in all VLANs want to use TCP/IP

You can't tell from the information provided

Switch SW1 sends a frame to switch SW2 using 802.1Q trunking. Which of the answers describes how SW1 changes or adds to the Ethernet frame before forwarding the frame to SW2?

Inserts a 4-byte header and does change the MAC addresses

Inserts a 4-byte header and does not change the MAC addresses

Encapsulates the original frame behind an entirely-new Ethernet header

None of the other answers are correct

For an 802.1Q trunk between two Ethernet switches, which answer most accurately defines which frames do not include an 802.1Q header?

Frames in the native VLAN (only one)

Frames in extended VLANs

Frames in VLAN 1 (not configurable)

Frames in all native VLANs (multiple allowed)

Imagine that you are told that switch 1 is configured with the dynamic auto parameter for trunking on its Fa0/5 interface, which is connected to switch 2. You have to configure switch 2. Which of the following settings for trunking could allow trunking to work? (Choose Two)

Trunking turned on

Dynamic auto

Dynamic desirable

Access

None of the other answers are correct

A switch has just arrived from Cisco. The switch has never been configured with any VLANs, but VTP has been disabled. An engineer gets into configuration mode and issues the vlan 22 command, followed by the name Hannahs-VLAN command. Which of the following are true? (Choose Two)

VLAN 22 is listed in the output of the (show vlan brief) command

VLAN 22 is listed in the output of the (show running-config) command

VLAN 22 is not created by this process

VLAN 22 does not exist in that switch until at least one interface is assigned to that VLAN

Which of the following commands identify switch interfaces as being trunking interfaces: interfaces that currently operate as VLAN trunks? (Choose Two)

Show interfaces

Show interfaces switchport

Show interfaces trunk

Show trunks

Imagine that a switch connects through an Ethernet cable to a router, and the router's host name is Hannah. Which of the following commands could tell you information about the IOS version on Hannah without establishing a Telnet connection to Hannah? (Choose Two)

Show neighbors Hannag

Show cdp

Show cdp neighbors

Show cdp neighbors Hannah

Show cdp entry Hannah

Show cdp neighbors detail

A switch is cabled to a router whose host name is Hannah. Which of the following CDP commands could identify Hannah's model of hardware? (Choose Two)

Show neighbors

Show neighbors Hannah

Show cdp

Show cdp interface

Show cdp neighbors

Show cdp entry Hannah

The output of the (show interfaces status) command on a 2960 switch shows interface Fa0/1 in a "disabled" state. Which of the following is true about interface Fa0/1? (Choose Three)

The interface is configured with the (shutdown) command

The (show interfaces fa0/1) command will list the interface with two status codes of administratively down and line protocol down

The (show interfaces fa0/1) command will list the interface with two status codes of up and down

The interface cannot currently be used to forward frames

The interface can currently be used to forward frames

Switch SW1 uses its Gigabit 0/1 interface to connect to switch SW2's Gigabit 0/2 interface. SW2's Gi0/2 interface is configured with the speed 1000 and duplex full commands. SW1 uses all the defaults for interface configuration commands on its Gi0/1 interface. Which of the following are true about the link it comes up? (Choose Two)

The link works at 1000 Mbps (1 Gbps)

SW1 attempts to run at 10 Mbps because SW2 has effectively disabled IEEE standard autonegotiation

The link runs at 1 Gbps, but SW1 uses half-duplex and SW2 uses full-duplex

Both switches use full-duplex

The following line of output was taken from a (show interfaces fa0/1) command: (Full-duplex, 100Mbps, media type is 10/100BaseTX). Which of the following are true about the interface? (Choose Two)

The speed was definitely configured with the speed 100 interface subcommand

The speed might have been configured with the speed 100 interface subcommand

The duplex was definitely configured with the duplex full interface subcommand

The duplex might have been configured with the duplex full interface subcommand

Which of the following commands list MAC address table entries for MAC addresses configured by port security? (Choose Two)

Show mac address-table dynamic

Show mac address-table

Show mac address-table static

Show mac address-table port-security

On a Cisco Catalyst switch, you issue a (show mac address-table) command. Which of the following answers list information you would likely see in most lines of output? (Choose Two)

A MAC address

An IP address

A VLAN ID

Type (broadcast, multicast, or unicast)

Layer 2 switches SW1 and SW2 connect through a link, with port G0/2 on SW2. The network engineer wants to use 802.1Q trunking on this link. The (show interfaces g0/1 switchport) command on SW1 shows the output listed here: Which of the following must be true on switch SW2's G0/2 port?

The operational state per the (show interfaces switchport) command must be "trunk"

The administrative state per (show interfaces switchport) command must be "trunk"

SW2 must use the (switchport mode trunk) configuration command on G0/2, or the link will not use trunking

SW2 can use the (switchport mode dynamic auto) configuration command as one option to make the link use trunking

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