Chapter 4 Exam

Refer to the exhibit. How many broadcast domains are displayed? 1 4 8 55 16

8

What is the destination address in the header of a broadcast frame? 0.0.0.0 255.255.255.255 FF-FF-FF-FF-FF-FF 11-11-11-11-11-11

FF-FF-FF-FF-FF-FF

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

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

Segment the LAN into smaller LANs and route between them

Which statement describes a result after multiple Cisco LAN switches are interconnected? The broadcast domain expands to all switches. There is one broadcast domain and one collision domain per switch. Frame collisions increase on the segments connecting the switches. One collision domain exists per switch.

The broadcast domain expands to all switches

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 access and core layers 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 distribution and core layers

Which solution would help a college alleviate network congestion due to collisions? a router with two Ethernet ports a firewall that connects to two Internet providers a router with three Ethernet ports a high port density switch

a high port density switch

Match the functions to the corresponding layers. (Not all options are used.) provides high-speed backbone connectivity implements personal firewalls on the client computers provides network access to the user implements network access policy represents the network edge establishes Layer 3 routing boundaries functions as an aggregator for all the campus blocks

access layer: represents the network edge provides network access to the user distribution layer: implements network access policy establishes Layer 3 routing boundaries core layer: provides high-speed backbone connectivity functions as an aggregator for all the campus blocks

What is a basic function of the Cisco Borderless Architecture distribution layer? aggregating all the campus blocks aggregating Layer 3 routing boundaries acting as a backbone providing access to end user devices

aggregating Layer 3 routing boundaries

What type of network uses one common infrastructure to carry voice, data, and video signals? converged switched managed borderless

converged

Match the forwarding characteristic to its type. (Not all options are used.) appropriate for high performance computing applications error checking before forwarding forwarding process can begin after receiving the destination address forwarding process only begins after receiving the entire frame may forward invalid frames only forwards valid frames

cut-through: appropriate for high performance computing applications forwarding process can begin after receiving the destination address may forward invalid frames store-and-forward: error checking before forwarding forwarding process only begins after receiving the entire frame only forwards valid frames

What two criteria are used by a Cisco LAN switch to decide how to forward Ethernet frames? (Choose two.) destination MAC address egress port path cost ingress port destination IP address

destination MAC address ingress port

What is one function of a Layer 2 switch? 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 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

What is a definition of a two-tier LAN network design? access, distribution, and core layers collapsed into one tier, with a separate backbone layer access and core layers collapsed into one tier, and the distribution layer on a separate tier distribution and core layers collapsed into one tier, and the access 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

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? stackable configuration modular configuration StackWise fixed configuration StackPower

fixed configuration

Allows intelligent traffic load sharing by using all network resources

flexibility

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

hierarchical

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

modularity

What are two advantages of modular switches over fixed-configuration switches? (Choose two.) need for fewer power outlets increased scalability lower forwarding rates lower cost per switch availability of multiple ports for bandwidth aggregation

need for fewer power outlets increased scalability

satisfies user expectations for keeping the network always on

resiliency

Which network device can serve as a boundary to divide a Layer 2 broadcast domain? router access point Ethernet bridge Ethernet hub

router

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

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

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

source MAC address

Which network device can be used to eliminate collisions on an Ethernet network? hub switch firewall router

switch

What does the term "port density" represent for an Ethernet switch? the number of available ports the numbers of hosts that are connected to each switch port the speed of each port the memory space that is allocated to each switch port

the number of available ports

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?​ to Fa0/1, Fa0/2, and Fa0/3 only to Fa0/1 and Fa0/2 only to Fa0/1 only​ to Fa0/1, Fa0/2, Fa0/3, and Fa0/4 to Fa0/1, Fa0/2, and Fa0/4 only​

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

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

to enhance user bandwidth to isolate traffic between segments

Which two previously independent technologies should a network administrator attempt to combine after choosing to upgrade to a converged network infrastructure? (Choose two.) mobile cell phone traffic electrical system scanners and printers user data traffic VoIP phone traffic

user data traffic VoIP phone traffic