CCNA 2 R&S Essentials Chapter 1 QUIZ

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CCNA 2 R&S Essentials Chapter 1 QUIZ
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CCNA 2 R&S Essentials Chapter 1 QUIZ

1 Which function is supplied by the access layer in a three-layer network design?

high-speed connectivity
application of policies
network access *
backbone connectivity

2 Which statement is true about broadcast and collision domains?

Adding a router to a network will increase the size of the collision domain.
The size of the collision domain can be reduced by adding hubs to a network.
The more interfaces a router has the larger the resulting broadcast domain.
Adding a switch to a network will increase the size of the broadcast domain. *

3 When an appropriate switch form factor for a network is being determined, what should be selected when fault tolerance and bandwidth availability are desired but the budget is limited?

stackable switch *
non-stackable switch
fixed configuration switch
modular switch

4 What are the three layers of the switch hierarchical design model? (Choose three.)

access *
data link
core *
network access
distribution *

5 Which cost-effective physical network topology design is recommended when building a three-tier campus network that connects three buildings?​

extended star *
dual ring

6 Which two characteristics describe a converged network? (Choose two.)

decreased service calls
support of voice and video both using the same switch *
separate wiring infrastructure for voice and video traffic
affordability for small and medium businesses *
cheaper equipment cost

7 Which service is provided by an automated attendant feature on a converged network?

point-to-point video
call routing *
IT management interface
video conferencing

8 When the appropriate switch form factor for a network is being determined, what type of switch should be selected when future expansion is important and cost is not a limiting factor?

stackable switch
1 rack unit switch
fixed configuration switch
modular switch *

9 Which option correctly describes a switching method?

cut-through: makes a forwarding decision after receiving the entire frame
store-and-forward: forwards the frame immediately after examining its destination MAC address
cut-through: provides the flexibility to support any mix of Ethernet speeds
store-and-forward: ensures that the frame is free of physical and data-link errors*


Refer to the exhibit. A switch receives a Layer 2 frame that contains a source MAC address of 000b.a023.c501 and a destination MAC address of 0050.0fae.75aa. Place the switch steps in the order they occur. 

occurs first -> Correct Answer The switch adds the source MAC address to the MAC address table.

occurs second -> Because the destination is not known, the switch forwards the frame out all ports except the port through which the frame arrived.


Refer to the exhibit. The PC that is attached to port Fa0/1 is sending a packet that has the destination MAC address of 0050.0fae.299c. Based on the current S1 MAC address table, what will S1 do first when the packet arrives at the switch?

forward the data to S2
broadcast an ARP request to all S1 ports except port Fa0/1
add the MAC address of the PC that is attached to Fa0/1 to the MAC address table *
broadcast the data to all S1 ports and all S2 ports that have attached end devices
broadcast the data to all S1 ports that have attached end devices, except the Fa0/1 port

12 Which switching mode describes a switch that transfers a frame as soon as the destination MAC address is read?

cut-through *
latency forwarding

13 Which two statements about Layer 2 Ethernet switches are true? (Choose two.)

Layer 2 switches prevent broadcasts.
Layer 2 switches have multiple collision domains. *
Layer 2 switches route traffic between different networks.
Layer 2 switches decrease the number of broadcast domains.
Layer 2 switches can send traffic based on the destination MAC address. *

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