Cisco 2 chapter 4 – Flashcards
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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?
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Easier to provide redundant links to ensure higher availability. Simpler deployment for additional switch equipment.
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What is a collapsed core in a network design?
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A combination of the functionality of the distribution and core layers.
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What is a definition of a two-tier LAN network design?
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Distribution and core layers collapsed into one tier, and the access layer on a separate tier.
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What is a basic function of the Cisco Borderless Architecture distribution layer?
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Aggregating Layer 3 routing boundaries.
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Which two previously independent technologies should a network administrator attempt to combine after choosing to upgrade to a converged network infrastructure?
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User data traffic. VoIP phone traffic.
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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?
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Fixed configuration
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What are two advantages of modular switches over fixed-configuration switches?
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Increased scalability. Need for fewer power outlets.
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Which type of address does a switch use to build the MAC address table?
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Source MAX address.
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Which network device can be used to eliminate collisions on an Ethernet network?
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Switch.
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What two criteria are used by a Cisco LAN switch to decide how to forward Ethernet frame?
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Ingress port. Destination MAC address.
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Consider that the main power has just been restored. PC3 issues a broadcast IPv4 DHCP request. To which port will SW1 forward this repuest?
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To Fa0/1, Fa0/2, and Fa0/3 only.
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What is one function of a Layer 2 switch?
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Determines which interface is used to forward a frame based on the destination MAC address.
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How is a frame sent from PCA forwarded to PCC if the MAC address table on switch SW1 is empty?
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SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch.
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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 recieve broadcast traffic?
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Segment the LAN into smaller LANs and route between them.
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How many broadcast domains are displayed?
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8
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Which solution would help a college alleviate network congestion due to collisions?
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A high port density switch.
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Which network device can serve as a boundary to divide a Layer 2 broadcast domain?
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Router
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What is the destination address in the header of a broadcast frame?
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FF-FF-FF-FF-FF-FF
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Which statement describes a result after multiple Cisco LAN switches are interconnected?
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The broadcast domain expands to all switches.
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What does the term "port density" represent for an Ethernet switch?
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The number of available ports.
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What are two reasons a network administrator would segment a network with a Layer 2 switch?
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To enhance user bandwidth. To isolate traffic between segments>
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A ____________ network is one that uses the same infrastructure to carry voice, data, and video signals.
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converged
