What are the three distinct functions of layer 2 switching that increase available bandwidth

A network designer must provide a rationale to a customer for a design which will move an enterprise from a flat network topology to a hierarchical network topology. Which two features of the hierarchical design make it the better choice? (Choose two.)

lower bandwidth requirements
reduced cost for equipment and user training
easier to provide redundant links to ensure higher availability
less required equipment to provide the same performance levels
simpler deployment for additional switch equipment

easier to provide redundant links to ensure higher availability
simpler deployment for additional switch equipment

What is a collapsed core in a network design?

a combination of the functionality of the access and distribution layers
a combination of the functionality of the distribution and core layers
a combination of the functionality of the access and core layers
a combination of the functionality of the access, distribution, and core layers

a combination of the functionality of the distribution and core layers

What is a definition of a two-tier LAN network design?

access and core layers collapsed into one tier, and the distribution layer on a separate tier
access and distribution layers collapsed into one tier, and the core layer on a separate tier
distribution and core layers collapsed into one tier, and the access layer on a separate tier
access, distribution, and core layers collapsed into one tier, with a separate backbone layer

distribution and core layers collapsed into one tier, and the access layer on a separate tier

What is a basic function of the Cisco Borderless Architecture distribution layer?

acting as a backbone
aggregating all the campus blocks
aggregating Layer 3 routing boundaries
providing access to end user devices

aggregating Layer 3 routing boundaries

Which two previously independent technologies should a network administrator attempt to combine after choosing to upgrade to a converged network infrastructure? (Choose two.)

user data traffic
VoIP phone traffic
scanners and printers
mobile cell phone traffic
electrical system

user data traffic
VoIP phone traffic

A local law firm is redesigning the company network so that all 20 employees can be connected to a LAN and to the Internet. The law firm would prefer a low cost and easy solution for the project. What type of switch should be selected?

fixed configuration
modular configuration
stackable configuration
StackPower
StackWise

What are two advantages of modular switches over fixed-configuration switches? (Choose two.)

lower cost per switch
increased scalability
lower forwarding rates
need for fewer power outlets
availability of multiple ports for bandwidth aggregation

increased scalability
need for fewer power outlets

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

destination IP address
source IP address
destination MAC address
source MAC address

Which network device can be used to eliminate collisions on an Ethernet network?

firewall
hub
router
switch

What two criteria are used by a Cisco LAN switch to decide how to forward Ethernet frames? (Choose two.)

path cost
egress port
ingress port
destination IP address
destination MAC address

ingress port
destination MAC address

What is one function of a Layer 2 switch?

forwards data based on logical addressing
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

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

A small publishing company has a network design such that when a broadcast is sent on the LAN, 200 devices receive the transmitted broadcast. How can the network administrator reduce the number of devices that receive broadcast traffic?

Add more switches so that fewer devices are on a particular switch.
Replace the switches with switches that have more ports per switch. This will allow more devices on a particular switch.
Segment the LAN into smaller LANs and route between them.
Replace at least half of the switches with hubs to reduce the size of the broadcast domain.

Segment the LAN into smaller LANs and route between them.

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

a firewall that connects to two Internet providers
a high port density switch
a router with two Ethernet ports
a router with three Ethernet ports

a high port density switch

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

router
Ethernet bridge
Ethernet hub
access point

What is the destination address in the header of a broadcast frame?

0.0.0.0
255.255.255.255
11-11-11-11-11-11
FF-FF-FF-FF-FF-FF

Which statement describes a result after multiple Cisco LAN switches are interconnected?

The broadcast domain expands to all switches.
One collision domain exists per switch.
Frame collisions increase on the segments connecting the switches.
There is one broadcast domain and one collision domain per switch.

The broadcast domain expands to all switches.

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 numbers of hosts that are connected to each switch port
the speed of each port

the number of available ports

What are two reasons a network administrator would segment a network with a Layer 2 switch? (Choose two.)

to create fewer collision domains
to enhance user bandwidth
to create more broadcast domains
to eliminate virtual circuits
to isolate traffic between segments
to isolate ARP request messages from the rest of the network

to enhance user bandwidth
to isolate traffic between segments

What is a basic function of the Cisco Borderless Architecture distribution layer?

Aggregating layer 2 and layer 3 routing boundies

A network designer must provide a rational to a customer for a design that will move am enterprise from a flat network topology to a hierarchical network topology. Which 2 features of the hierarchical design make it the better choice Choose 2

Easier to provide redundant links to ensure higher availability

Simpler deployment for additional switch equipment

What is a collapsed core in a network design

A combination of the functionality of the Distribution and Core layers.

Which 2 previously independent technologies should a network administrator attempt to combine after choosing to upgrade to a converged network infrastructure. choose 2

User Data traffic
VoIP phone traffic

What is the definition of a 2 tiered LAN network design.

Distribution and core layers collapsed into 1 tier, and the access layer in a separate tier.

A local law firm is redesigned the company network so that all 20 employees can be connected to a LAN and to the Internet. The law firm would prefer a low cost and easy solution for the project. What type of switch should be selected?

What are 2 advantages of modular switches over fixed configuration switches? choose 2

Increased Scalability
Need for fewer power outlets

What is one function of a layer 2 switch

Determines which interface is used to forward a frame on the destination MAC adress

What criteria are used by a Cisco LAN switch to decide how to forward Ethernet frames?

Which network device can be used to eliminate collisions on an Ethernet network?

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

What are 2 reasons a network administrator would segment a network with a layer 2 switch choose 2

To enhance user bandwidth
To isolate traffic between segments

Which statement describes the mircrosegmentation features of a LAN switch?

Each port forms a collision domain

A ______________ network is one that uses the same infrastructure to carry voice, data,and video signals

A network designer must provide a rationale to a customer for a design which will move an enterprise from a flat network topology to a hierarchical network topology. Which two features of the hierarchical design make it the better choice? (Choose two.)

easier to provide redundant links to ensure higher availability

simpler deployment for additional switch equipment

What is a collapsed core in a network design

a combination of the functionality of the distribution and core layers

What is a definition of a two-tier LAN network design?

distribution and core layers collapsed into one tier, and the access layer on a separate tier

What is a basic function of the Cisco Borderless Architecture distribution layer?

aggregating Layer 3 routing boundaries

Which two previously independent technologies should a network administrator attempt to combine after choosing to upgrade to a converged network infrastructure? (Choose two)

user data traffic
VoIP phone traffic

A local law firm is redesigning the company network so that all 20 employees can be connected to a LAN and to the Internet. The law firm would prefer a low cost and easy solution for the project. What type of switch should be selected?

What are two advantages of modular switches over fixed-configuration switches? (Choose two.)

increased scalability
need for fewer power outlets

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

Which network device can be used to eliminate collisions on an Ethernet network?

What two criteria are used by a Cisco LAN switch to decide how to forward Ethernet frames? (Choose two.)

ingress port
destination MAC address

What is one function of a Layer 2 switch?

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

A small publishing company has a network design such that when a broadcast is sent on the LAN, 200 devices receive the transmitted broadcast. How can the network administrator reduce the number of devices that receive broadcast traffic?

Segment the LAN into smaller LANs and route between them.

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

a high port-density switch

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

What is the destination address in the header of a broadcast frame?

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

the number of available ports

Which statement describes a result after multiple Cisco LAN switches are interconnected?

The broadcast domain expands to all switches.

What are two reasons a network administrator would segment a network with a Layer 2 switch? (Choose two.)

to enhance user bandwidth

to isolate traffic between segments

Fill in the blank. A ____________ network is one that uses the same infrastructure to carry voice, data, and video signals.

allows intelligent traffic load sharing by using all network resources

facilitates understanding the role of each device at every tier, simplifies deployment, operation, management, and reduces fault domains at every tier

allows seamless network expansion and integrated service enablement on an on-demand basis

satisfies user expectations for keeping the network always on

represents the network edge provides network access to the user

implements network access policy establishes Layer 3 routing boundaries

provides high-speed backbone connectivity
functions as an aggregator for all the campus blocks

appropriate for high performance computing applications forward process can begin after receiving the destination address may forward invalid frames

error checking before forwarding forwarding process only begins after receiving the entire frame only forwards valid frames

A switch has just been powered on) PC1 connects to port 1; PC2 connects to port 2) If PC1 sends data to PC2, how will the switch process the frame?
Question 1 options:

The switch forwards the frame based on the MAC address of PC2.
The switch adds the MAC address of PC1 (that is received on the ingress port) to the switch MAC address table.
The switch forwards the frame to all switch ports including ports 1 and 2.
The switch adds the IP address of PC2 (that is sent through the egress port) to the switch MAC address table.

The switch adds the MAC address of PC1 (that is received on the ingress port) to the switch MAC address table.

Layer-2 switching provides which of the following? (Choose four)
Question 2 options:
Hardware-based bridging (ASIC)
Wire speed
Low latency
Low cost
Routing
WAN Services

Hardware-based bridging (ASIC), Wire speed, Low latency, Low cost

What function is most likely to be provided by a Cisco access layer switch?
Question 3 options:

PoE
Routing
Link aggregation
Fault isolation

What connected end-user devices to networks before Layer-2 Switches?
Question 4 options:

Hubs
Routers
Firewalls
Duct Tape

Which command will display the forward/filter table on a Cisco switch?
Question 5 options:

Show mac filter
Show run
Show mac address-table
Show mac filter-table

What are three benefits of a converged network? (Choose three.)
Question 6 options:

Voice and data support staff are combined.
Network design is simplified.
Network configuration is simplified.
Voice, video, and data traffic use one physical network.
Maintenance is simpler than hierarchical networks.
Network moves, adds, and changes are simplified.

Network configuration is simplified.
Voice, video, and data traffic use one physical network.
Maintenance is simpler than hierarchical networks.
WRONG
Network configuration is simplified.
Voice, video, and data traffic use one physical network.
Maintenance is simpler than hierarchical networks.
WRONG
Network design is simplified.
Voice, video, and data traffic use one physical network.
Maintenance is simpler than hierarchical networks.
WRONG
Network configuration is simplified.
Voice, video, and data traffic use one physical network.
Network moves, adds, and changes are simplified.
WRONG
Voice and data support staff are combined.
Network configuration is simplified.
Voice, video, and data traffic use one physical network.
WRONG
Voice and data support staff are combined.
Voice, video, and data traffic use one physical network.
Maintenance is simpler than hierarchical networks.

If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame?
Question 7 options:

Discard and send an error message
Flood the network with the frame
Add the source address and port to the MAC address table and forward the frame out the destination port
Add the destination MAC to the MAC address table and then forward the frame

Add the source address and port to the MAC address table and forward the frame out the destination port

What are three distinct functions of layer-2 switching that increase available bandwidth on the network? (choose three.)
Question 8 options:

Address learning
Routing
Forwarding and filtering
Creating network loops
Loop avoidance
IP addressing

Address learning
Loop avoidance
Forwarding and filtering

You have two switches connected together with two crossover cables for redundancy. STP is turned off. Which of the following will happen between the switches?
Question 9 options:

The routing tables on the switches will not update
The MAC forward/filter table will not update on the switch
Broadcast storms will occur on the switched network
The switches will automatically load-balance between the two links

Broadcast storms will occur on the switched network.

A switch that uses MAC addresses to forward frames operates at which layer of the OSI model?
Question 10 options:

Layer 1
Layer 2
Layer 3
Layer 4

Which is the fastest switching method?
a. Store-and-forward
b. Fragment-free
c. Cut-through
d. Forward-free

There can be only one MAC address per port in a switching table.
True or False?

Which of the following is considered a Layer 2 device?
a. Computer
b. Switch
c. Router
d. Hub

You have two eight-port switches. On each switch, seven stations are connected to ports, and the two switches are connected with the eighth port. How many collisions domains are there?
a. 16
b. 15
c. 14
d. 8
e. 1

This switching method requires the switch to read the entire
frame into its buffers before forwarding it. It examines the frame check sequence (FCS)
field to be sure the frame contains no errors before it’s forwarded.

Store-And-Forward Switching

A mode on a switch port that prevents the switch from forwarding frames
out the blocked port, thereby preventing a switching loop. See also switching loop.

the switch looks at the destination hardware address and finds the exit interface in the MAC database

Spanning Tree Protocol (STP) is used to stop network loops while still permitting redundancy

The switch doesn't transmit the frame out any interface except for the destination interface preserving bandwidth

display which MAC addresses are associated with which port interface

the switches will flood broadcasts endlessly throughout the internet work

constantly updating the MAC filter table with source hardware address locations that it will fail to forward a frame

the switch only waits for the destination hardware address to be received before it looks up the destination address in the MAC filter table

Cut-through (Fast Forward/Real-Time)

the complete data frame is received on the switch's buffer, a CRC is run, and if the CRC passes, the switch looks up the destination address in the MAC filter table

What are the three switch functions at layer 2?

Address learning, forward/filter decisions, loop avoidance

If a frame is received on a switch port and the source MAC address is not in the forward/ filter table, what will the switch do?

It will add the source MAC address in the forward/filter table and associate it with the port the frame was received on

What is used at layer 2 to prevent switching loops?

Spanning Tree Protocol (STP)

Which LAN switch method receives the complete frame before beginning to forward it?

Switches break up ___________________ domains

What is used to prevent switching loops in a network with redundant switched paths?

Spanning Tree Protocol (STP)

What are the three distinct functions of layer 2 switching that increase available bandwidth on the network?

address learning, forwarding and filtering of the network, and loop avoidance

Which of the following is true regarding layer 2 switches? (Choose two.)

A switch is a multiport bridge & Switches learn MAC addresses by examining the source address of each frame.

What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table?

Floods the network with the frame looking for the device

If a switch receives a frame and the source MAC address is not in the MAC address table, but the destination address is in the table, what will the switch do with the frame?

Add the source address and port to the MAC address table and forward the frame out the destination port.

Which of the following is a characteristic of having a network segment on a switch?

One device per segment can send frames to the switch at a time.

Layer 2 switching provides which of the following? (Choose four.)

Hardware-based bridging (ASIC), Wire speed, Low latency, Low cost

What are the 3 main functions of layer 2 switching?

There are three distinct functions of layer 2 switching (you need to remember these!): address learning, forward/filter decisions, and loop avoidance.

What are the three functions of a switch choose three?

Three basic functins of a switch are Learning, Forwarding and Preventing Layer 2 Loops.

What are the distinct functions of a Layer 3 router?

Simply to say, a layer 3 switch is a network switch with some router functions. The most important purpose of the layer 3 switch is to speed up the data exchange within a large LAN. The routing function is also used for this purpose. It can accomplish one route and multiple packet forwarding processes.

What are Layer 2 and 3 switches?

Layer 2 switches perform the switching function to re-arrange the data frames from the source to its destination network. Layer 3 switches define paths based on logical addressing. Layer 2 switches are used to reduce traffic on the local network, whereas Layer 3 switches mostly used to Implement VLAN.