CCNA 2 – Chapter 1 – Exam Answer 2016 100%

CCNA 2 – Chapter 1 – Introsuction to Switched Networks Exam Answer 2016 100%

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

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

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

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

3. What does the term “port density” represent for an Ethernet switch?

• the number of available ports
• the speed of each port
• the memory space that is allocated to each switch port
• the numbers of hosts that are connected to each switch port

4. What is a basic function of the Cisco Borderless Architecture access layer?

• aggregates Layer 3 routing boundaries
• provides high availability
• aggregates Layer 2 broadcast domains
• provides access to the user

5. 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.)

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

6. What is a collapsed core in a network design?

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

7. Which switch form factor should be used when large port density, fault tolerance, and low price are important factors?

• modular switch
• stackable switch
• fixed-configuration switch
• rackable 1U switch

8. Match the forwarding characteristic to its type. (Not all options are used.)

CCNA 2 – Chapter 1 – Introsuction to Switched Networks Exam Answer 2016 100%

9. What is one advantage of using the cut-through switching method instead of the store-and-forward switching method?

• makes a fast forwarding decision based on the source MAC address of the frame
• provides the flexibility to support any mix of Ethernet speeds
• has a positive impact on bandwidth by dropping most of the invalid frames
• has a lower latency appropriate for high-performance computing applications

10. Which type of transmission does a switch use when the destination MAC address is not contained in the MAC address table?

• broadcast
• unicast
• anycast
• multicast

11. An administrator purchases new Cisco switches that have a feature called StackPower. What is the purpose of this feature?

• It enables many switches to be connected with a special fiber-optic power cable to provide higher bandwidth.
• It enables the sharing of power among multiple stackable switches.
• It enables AC power for a switch to be provided from a powered patch panel.
• It enables many switches to be physically stacked in an equipment rack.
• It enables many switches to be connected to increase port density.

12.

CCNA 2 – Chapter 1 – Introsuction to Switched Networks Exam Answer 2016 100%

Refer to the exhibit. Consider that the main power has just been restored. PC1 asks the DHCP server for IPv4 addressing. The DHCP server sends it an IPv4 address. While PC2 is still booting up, PC3 issues a broadcast IPv4 DHCP request. To which port will SW1 forward this request?

• to Fa0/1 and Fa0/2 only
• to Fa0/1, Fa0/2, Fa0/3, and Fa0/4
• to Fa0/1, Fa0/2, and Fa0/4 only
• to Fa0/1 only
• to Fa0/1, Fa0/2, and Fa0/3 only

13. What is one function of a Layer 2 switch?

• duplicates the electrical signal of each frame to every port
• determines which interface is used to forward a frame based on the destination MAC address
• forwards data based on logical addressing
• learns the port assigned to a host by examining the destination MAC address

14.

CCNA 2 – Chapter 1 – Introsuction to Switched Networks Exam Answer 2016 100%

Refer to the exhibit. How is a frame sent from PCA forwarded to PCC if the MAC address table on switch SW1 is empty?

• SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch.
• SW1 drops the frame because it does not know the destination MAC address.
• SW1 floods the frame on all ports on the switch, excluding the interconnected port to switch
• SW2 and the port through which the frame entered the switch.
• SW1 forwards the frame directly to SW2. SW2 floods the frame to all ports connected to SW2, excluding the port through which the frame entered the switch.

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

16.

CCNA 2 – Chapter 1 – Introsuction to Switched Networks Exam Answer 2016 100%

Refer to the exhibit. Fill in the blank.
There are    12     collision domains in the topology.

17. ABC, Inc. has about fifty hosts in one LAN. The administrator would like to increase the throughput of that LAN. Which device will increase the number of collision domains and thereby increase the throughput of the LAN?

• hub
• NIC
• host
• switch

18. What information is added to the switch table from incoming frames?

• destination MAC address and incoming port number
• destination IP address and incoming port number
• source MAC address and incoming port number
• source IP address and incoming port number

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

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

20.

CCNA 2 – Chapter 1 – Introsuction to Switched Networks Exam Answer 2016 100%

Refer to the exhibit. Fill in the blank.
There are      five       broadcast domains in the topology.