Hoofdstuk 4

Question 1

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

Answer 1

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

Question 2

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

Answer 2

a combination of the functionality of the distribution and core layers

Question 3

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

 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
 access, distribution, and core layers collapsed into one tier, with a separate backbone layer

Answer 3

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

Question 4

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

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

Answer 4

aggregating Layer 3 routing boundaries

Question 5

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

     user data traffic
     VoIP phone traffic
     scanners and printers
     mobile cell phone traffic
     electrical system

Answer 5

user data traffic

VoIP phone traffic

Question 6

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?

     fixed configuration
     modular configuration
     stackable configuration
     StackPower
     StackWise

Answer 6

fixed configuration

Question 7

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

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

Answer 7

increased scalability

need for fewer power outlets

Question 8

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

Answer 8

source MAC address

Question 9

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

 firewall
 hub
 router
 switch

Answer 9

switch

Question 10

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

     path cost
     egress port
     ingress port
     destination IP address
     destination MAC address

Answer 10

ingress port

destination MAC address

Question 11

What is one function of a Layer 2 switch?

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

Answer 11

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

Question 12

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.
 Segment the LAN into smaller LANs and route between them.
 Replace at least half of the switches with hubs to reduce the size of the broadcast domain.

Answer 12

Segment the LAN into smaller LANs and route between them.

Question 13

Which solution would help a college alleviate network congestion due to collisions?

 a firewall that connects to two Internet providers
 a high port density switch
 a router with two Ethernet ports
 a router with three Ethernet ports

Answer 13

a high port density switch

Question 14

Which network device can serve as a boundary to divide a Layer 2 broadcast domain?

 router
 Ethernet bridge
 Ethernet hub
 access point

Answer 14

router

Question 15

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

 0.0.0.0
 255.255.255.255
 11-11-11-11-11-11
 FF-FF-FF-FF-FF-FF

Answer 15

FF-FF-FF-FF-FF-FF

Question 16

Which statement describes a result after multiple Cisco LAN switches are interconnected?

 The broadcast domain expands to all switches.
 One collision domain exists per switch.
 Frame collisions increase on the segments connecting the switches.
 There is one broadcast domain and one collision domain per switch.

Answer 16

The broadcast domain expands to all switches.

Question 17

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

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

Answer 17

the number of available ports

Question 18

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

Answer 18

to enhance user bandwidth

to isolate traffic between segments