Cisco Certified Expert

Summary

Cisco.com

The three communication types are broadcast, multicast and unicast.

Unlayered flat networks extend broadcast and failure domains.

Layer 2 switches provide high-speed scalability to the wiring closet and Campus Backbone.

Layer 2 network designs can produce network designs that reduce the size of a broadcast domain.

© 2004, Cisco Systems, Inc. All rights reserved. BCMSN v2.1—1-38

Quiz

Use the practice items here to review what you learned in this lesson. The correct answers are found in the Quiz Answer Key.

Q1) Match the type of communication with the appropriate feature.

_ 2. broadcast

_ 3. multicast

A) broadcasts to one user

B) broadcasts to a specific group

C) can propagate throughout a network

Q2) Select the issues that can occur in an unlayered network. (Choose two.)

A) There is an inefficient use of switches.

B) Large broadcast and failure domains are extended.

C) Wiring errors can lead to blocked bridges.

D) Problem isolation and determination are difficult.

Q3) Select the correct features of a Layer 2 switch. (Choose two.)

A) It provides high-speed scalability to the Access and Distribution modules.

B) It supports hardware-based bridging.

C) A slight modification is required to the packet infrastructure content.

D) It increases bandwidth to the wiring closet.

Q4) Select the issues that can occur in a Layer 2 network. (Choose two.)

A) cannot provide any kind of connectivity between segments

B) has same limitations as bridging

C) slow performance

D) more expensive

Q5) Select the correct features of routers. (Choose two.)

A) Routers increase bandwidth to the wiring closet.

B) Routers determine the next network point to which a packet should be forwarded toward its destination.

C) Routers provide connectivity between Layer 2 virtual LANs.

D) Frame forwarding is handled by specialized hardware called ASICs.

Q6) Select the issues that can occur in a routed network. (Choose two.)

A) expensive

B) boundaries not clearly defined

C) minimal connectivity

D) uses specialized hardware

Q7) Select the features of multiplayer switches. (Choose two.)

A) combines Layer 2 switching and Layer 3 routing functionality

B) provides high-speed scalability

C) determines forwarding path based on Layer 2 information

D) verifies packet information and updates hourly

Q8) Select the issues that can occur in a poorly designed network. (Choose two.)

A) Network errors can affect all hosts on a network segment.

B) Broadcasts are propagated over a large number of end-user nodes.

C) Network is divided into defined subsets.

D) Network errors affect only key segments.

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