CCNA 2 Chapter 1

converged

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

fixed configuration*

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?

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

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.)

switch

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?

It enables the sharing of power among multiple stackable switches.*

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

[+] typically used in the access layer of a switched network [+] forward traffic based on information in the Ethernet header

Characteristics of Layer 2 switches

[#] can build a routing table [#] supports a few routing protocols

Characteristics of Multilayer switches

+appropriate for high perfomance computing applications +forwarding process can be begin after receiving the destination address +may forward invalid frames

Characteristics of cut-through forwarding

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

Characteristics of store-and-forward

[+] represents the network edge [+] provides network access to the user

Functions of Access layer

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

Functions of Core layer

[#] implements network access policy [#] establishes Layer 3 routing boundaries

Functions of Distribution layer

SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch.*

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

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

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, Fa0/2, and Fa0/3 only*

Refer to the exhibit. Consider that the main power has just been restored. PC3 issues a broadcast IPv4 DHCP request. To which port will SW1 forward this request?

2

Refer to the exhibit. Fill in the blank. How many collision domains are shown in the topology?

5

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

12

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

8

Refer to the exhibit. How many broadcast domains are displayed?

need for fewer power outlets increased scalability*

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

to enhance user bandwidth* to isolate traffic between segments*

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

the number of available ports*

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

source MAC address and incoming port number*

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

provides access to the user*

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

aggregating Layer 3 routing boundaries*

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

a combination of the functionality of the distribution and core layers*

What is a collapsed core in a network design?

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

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

has a lower latency appropriate for high-performance computing applications​*

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

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

What is one function of a Layer 2 switch?

FF-FF-FF-FF-FF-FF*

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

1000 Mb/s*

What is the maximum wire speed of a single port on a 48-port gigabit switch?

traffic flow analysis*

What tool is important to consider for use when making hardware improvement decisions about switches?

destination MAC address* ingress port*

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

PoE pass-through

When the installation of a network infrastructure is being planned, which technology will allow power to be provided via Ethernet cabling to a downstream switch and its connected devices?

switch

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

Each port forms a collision domain.*

Which statement describes the microsegmentation feature of a LAN switch?

stackable switch*

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

analog and VoIP phone traffic* user data traffic*

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

source MAC address*

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

broadcast

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

flexibility

allows intelligent traffic load sharing by using all network resources

modularity

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

hierarchical

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

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resiliency

satisfies user expectations for keeping the network always on