341 Chapter 4 quiz questions. Chapter 1 &2
Refer to the exhibit. Fill in the blank. How many broadcast domains are in the topology?
1
Refer to the exhibit. How many broadcast domains are displayed? 8 55 16 1 4
8
Which solution would help a college alleviate network congestion due to collisions? a router with two Ethernet ports a high port density switch a router with three Ethernet ports a firewall that connects to two Internet providers
A high port density switch
Match the functions to the corresponding layers. (Not all options are used.) ACCESS LAYER DISTIBUTION LAYER CORE LAYER FUNCTIONS: -FUNCTIONS AS AN AGGREGATOR FOR ALL THE CAMPUS BLOCKS -REPRESENTS THE NETWORK EDGE -PROVIDES HIGH-SPEED BACKBONE CONNECTIVITY -IMPLEMENTS NETWORK ACCESS POLICY -PROVIDES NETWORK ACCESS TO THE USER -ESTABLISHES LAYER 3 ROUTING BOUNDRIES
ACCESS LAYER: -REPRESENTS THE NETWORK EDGE -PROVIDES NETWORK ACCESS TO THE USER DISTRUBUTION LAYER: -IMPLEMENTS NETWORK ACCESS POLICY -ESTABLISHES LAYER 3 ROUTING BOUNDRIES CORE LAYER -PROVIDES HIGH-SPEED BACKBONE CONNECTIVITY -FUNCTIONS AS AN AGGREGATOR FOR ALL THE CAMPUS BLOCKS
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? a) forward the data to S2 b) broadcast an ARP request to all S1 ports except port Fa0/1 c) add the MAC address of the PC that is attached to Fa0/1 to the MAC address table d)broadcast the data to all S1 ports and all S2 ports that have attached end devices e)broadcast the data to all S1 ports that have attached end devices, except the Fa0/1 por
C) add the MAC address of the PC that is attached to Fa0/1 to the MAC address table
Match the forwarding characteristic to its type. (Not all options are used.) cut through store and forward -Appropriate for high performance computing applications -error checking before forwarding -forwarding process can begin after receiving the destination address -forwarding process only begin after receiving the entire frame -may forward invalid frames -only forwards valid frames
CUT THROUGH -Appropriate for high performance computing applications -may forward invalid frames -forwarding process can begin after receiving the destination address STORE AND FORWARD: -error checking before forwarding -forwarding process only begin after receiving the entire frame -only forwards valid frames
Which statement is true about broadcast and collision domains? A) Adding a router to a network will increase the size of the collision domain. B) The size of the collision domain can be reduced by adding hubs to a network. C) The more interfaces a router has the larger the resulting broadcast domain. D) Adding a switch to a network will increase the size of the broadcast domain.
D) Adding a switch to a network will increase the size of the broadcast domain.
What is the destination address in the header of a broadcast frame? FF-FF-FF-FF-FF-FF 0.0.0.0 11-11-11-11-11-11 255.255.255.255
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 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 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. SW1 drops the frame because it does not know the destination MAC address.
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? 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. 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.
Segment the LAN into smaller LANs and route between them.
Which statement describes a result after multiple Cisco LAN switches are interconnected? Frame collisions increase on the segments connecting the switches. The broadcast domain expands to all switches. There is one broadcast domain and one collision domain per switch. 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 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 basic function of the Cisco Borderless Architecture distribution layer? aggregating Layer 3 routing boundaries aggregating all the campus blocks providing access to end user devices acting as a backbone
aggregating Layer 3 routing boundaries
Match the borderless switched network guideline description to the principle. (Not all options are used.) 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 -convergence -flexibility -hierarchical -modularity -resiliency
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 satisfies user expectations for keeping the network always on -> resiliency
What type of network uses one common infrastructure to carry voice, data, and video signals? borderless switched managed converged Navigation Bar
converged
Which switching method describes a switch that transfers a frame as soon as the destination MAC address is read? fragment-free cut-through store-and-forward latency forwarding
cut-through
What is one function of a Layer 2 switch? learns the port assigned to a host by examining the destination MAC address duplicates the electrical signal of each frame to every port forwards data based on logical addressing 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
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 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 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 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 simpler deployment for additional switch equipment less required equipment to provide the same performance levels easier to provide redundant links to ensure higher availability reduced cost for equipment and user training
easier to provide redundant links to ensure higher availability simpler deployment for additional switch equipment
Which cost-effective physical network topology design is recommended when building a three-tier campus network that connects three buildings? bus mesh extended star dual ring
extended star
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? StackWise modular configuration StackPower fixed configuration stackable configuration
fixed configuration
What are two advantages of modular switches over fixed-configuration switches? (Choose two.) lower cost per switch increased scalability availability of multiple ports for bandwidth aggregation need for fewer power outlets lower forwarding rates
increased scalability need for fewer power outlets
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
modular switch
Which function is supplied by the access layer in a three-layer network design? high-speed connectivity routing application of policies network access backbone connectivity
network access
Which network device can serve as a boundary to divide a Layer 2 broadcast domain? Ethernet hub Ethernet bridge router access point
router
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
source mac address
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
store-and-forward: ensures that the frame is free of physical and data-link errors
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 equipment cost
support of voice and video both using the same switch affordability for small and medium businesses
Which network device can be used to eliminate collisions on an Ethernet network? switch firewall hub router Navigation Bar
switch
What does the term "port density" represent for an Ethernet switch? the memory space that is allocated to each switch port the numbers of hosts that are connected to each switch port the speed of each port the number of available ports
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 only to Fa0/1 and Fa0/2 only to Fa0/1, Fa0/2, and Fa0/3 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 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
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
When would a network designer be concerned with RUs? when considering port density when calculating maximum port speed when determining the number of available line cards when purchasing a specific number of switches for a network rack
when purchasing a specific number of switches for a network rack
