CCNA 200-301 Questions and Answers
What is the primary purpose of a VLAN? - To create a broadcast domain; enable
segmentation or isolation of broadcast traffic
Unassigned Cisco switch ports remain in which VLAN? - VLAN 1
Do VLANs prevent broadcast storms? - No, they minimize the size and effect...
ccna 200 301 questions and answers what is the primary purpose of a vlan to create a broadcast domain enable segmentation or isolation of broadcast traffic unassigned cisco switch ports remain in
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CCNA 200-301 Questions and Answers
What is the primary purpose of a VLAN? - To create a broadcast domain; enable
segmentation or isolation of broadcast traffic
Unassigned Cisco switch ports remain in which VLAN? - VLAN 1
Do VLANs prevent broadcast storms? - No, they minimize the size and effect of the
broadcast storm on neighbor switches and hosts
What are four advantages to using VLANs? - 1. Enable access to network services
based on logical requirements
2. Network security is optimized with VLANs that enable managing and filtering
sensitive traffic from other network traffic
3. Bandwidth efficiency is accomplished through segmenting traffic into smaller
broadcast domains
4. Easier add/move/delete administration of endpoints on a network and scalability for
larger enterprise deployments
What is the Layer 2 Broadcast Destination Address? - FFFF.FFFF.FFFF
What is the Layer 3 Broadcast Destination Address? - 255.255.255.255
What is VLAN 1 used for and can it be deleted? - Management Traffic; it cannot be
deleted
What is the normal VLAN range? - VLAN 2 - 1001
What is the extended VLAN range? - VLAN 1006 - 4094
What VLANs are auto-created and cannot be deleted? - VLAN 1, 1002 - 1005
What VLANs cannot be pruned from a trunk? - VLAN 1006 - 4094
How many VLANs can be assigned to a switch access port? - Only one VLAN unless
you are connecting an IP phone
What commands would you use to setup a switch access port with an IP phone? -
interface <interface#/#>
switchport mode access
switchport access vlan #
switchport voice vlan #
Where is the switch VLAN configuration stored? - vlan.dat file
, What commands would you use to globally create and name a VLAN? - vlan #
name <name_of_vlan>
What is the default switch port mode? - Access port
What will switch access ports do with am Ethernet frame it receives with an 802.1q tag?
- It will discard the packet without learning the source MAC address
What command would you use to configure a range of switch ports? - interface range
gigabitethernet#/# - #
What command lists all VLANs configured on a switch? - show vlan or show vlan brief
What command is used to display the switch ports assigned to a single VLAN? - show
vlan id <vlan>
When are data messages forwarded to the default gateway? - When the destination
subnet is on a different subnet than the endpoint
Does the Cisco default switch configuration have an IP default gateway? - No
What command is used to create an IP default gateway? - ip default-gateway
<ip_address>
What is the primary purpose of a switch? - To make forwarding decisions based on
destination MAC address
List the network services provided by switches - - Only read Ethernet frame headers
and forward traffic
- Create and maintain the MAC address table
- Create separate collision domains per switch port
- Create separate broadcast domains per VLAN
What method was used for detecting Ethernet collisions on older hubs and bridges? -
Carrier Sense Multiple Access Collision Detection (CSMA/CD)
How many separate MAC address table does a switch create? - A switch creates a
separate MAC address table for each configured VLAN
What command lists the contents of the MAC address table for a switch? - show mac
address-table
When does a switch begin MAC address learning? - When a switch is first started and
connected hosts start sending frames? Also triggered when the aging time expires for
an address
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