Chapter 1

Question 1

Modular

Answer 1

supports change and growth

Question 2

Resilient

Answer 2

Uptime High availablity

Question 3

Flexible

Answer 3

network adaptability

Question 4

Multilayer switches

Answer 4

hardware-based routing ASIC Application Specific integrated Circuits

Question 5

Catalyst 6500 Family

Answer 5

• used in campus, data center, core, wan and branch

- 13 slots and 16 10-Gigabit Ethernet interfaces

Question 6

Catalyst 4500 Family

Answer 6

• used in distribution layer

- 10 slots and several 10-Gigabit Ethernet interfaces

Question 7

Catalyst 3560 and 3750 Families

Answer 7

used in fixed-port scenarios at the access and distribution layers

Question 8

Nexus 2000, 5000, and 7000 Families

Answer 8

NX-OS based modular data center switches

Question 9

Network Management Traffic

Answer 9

BPDU, CDP, SNMP, RMON, SSH (low bandwidth)

Question 10

IP Telephony Traffic

Answer 10

Signaling traffic encapsulated voice traffic (low bandwidth)

Question 11

IP Multicast Traffic

Answer 11

IP/TV and market data applications (High bandwidth)

Question 12

Normal Data Traffic

Answer 12

file print email internet browsing (low to medium bandwidth)

Question 13

Scavenger Class Traffic

Answer 13

• all traffic with protocols that exceed normal data flows

- p2p, IM, voip (medium to high bandwidth)

Question 14

SONA

Answer 14

Service-Oriented Network Architecture

Question 15

Application Layer

Answer 15

business and collaboration applications

Question 16

Interactive Services Layer

Answer 16

efficient allocation of resources to applications and business processes the networked infrastructure

Question 17

Networked Infrastructure Layer

Answer 17

where all IT resources interconnect

Question 18

Building Core Layer

Answer 18

• High speed campus backbone
• Switch packets as fast as possible
• High availability and adaptability

Question 19

Building Distribution Layer

Answer 19

Use switches to separate work-groups and isolate network problems

Question 20

Building Access Layer

Answer 20

grant user access to network devices

Question 21

Core layer

Answer 21

• Combine distribution layer switches
• adds scalable protocols and load balancing
• High speed layer 3 switching using 10 gig Ethernet
• redundant layer 3 links

Question 22

Distribution Layer

Answer 22

• High availability, fast path recover, load balancing, QoS Security
• Route summaries and packet manipulation
• Packet filtering and policy routing

Question 23

Access layer

Answer 23

• High availability
• Convergence PoE Power over Ethernet for Voip and wireless access points
• Security port security, DhCP snooping, Dynamic ARP inspection and IP source guard

Question 24

Small Network

Answer 24

0 - 200 end devices

• Collapsed core
• Catalyst 3560 2960G switches for access layer
• Cisco 1900 and 2900 routers to connect to branch/WAN

Question 25

Medium Network

Answer 25

200 -1000 end devices - Redundant multilateral switches at distribution layer - Catalyst 4500 and 6500 switches

Question 26

Large Network

Answer 26

1000 or more end users - stricter adherence to core, distribution, access layer - Catalyst 6500 switches in core and distribution layers - Nexus 7000 switches in data centers - Division of labor among network engineers

Question 27

Data Center Infrastructure

Answer 27

``` Aggregation layer - service module integration, default gateway redundancy, security, load balancing, content switching, network analysis Access layer - connects servers to network ```

Question 28

PPDIOO Phases

Answer 28

Prepare - establish organizational requirements Plan - identify initial network requirements Design - based on planning outcomes Implement - build network according to design Operate - maintain network health Optimize - proactive management of netowrk

Question 29

Lifecycle approach

Answer 29

Benefits - lowering the total cost of network ownership - increasing network availability - efficient access to applications and services Lower Costs - identify and validate technology requirements - accelerate successful implementation - improve the efficiency of your network and of the staff supporting it - reduce operating expenses by improving the efficiency of operational processes and tools