NetAcad CCNA Connecting Networks Chapter 1

Cisco Enterprise Architecture Model

This network model seperates the enterprise network into functions areas that are referred to as modules. The modularity that is built into the architecture allows flexibility in network design and facilitates implementation and troubleshooting.

C. Service Provider Edge

This portion of Cisco's Enterprise Architecture Model can include Internet Service Providers (ISPs), WAN services such as Frame Relay, ATM, and MAN, and Public Switched Telephone Network (PSTN) services. A. Enterprise Campus B. Enterprise Edge C. Service Provider Edge D. Remote

C. Service Provider Edge

This portion of Cisco's Enterprise Architecture Model converges voice, video, and data services over a single IP communications network. A. Enterprise Campus B. Enterprise Edge C. Service Provider Edge D. Remote

C. Service Provider Edge

This portion of Cisco's Enterprise Architecture Model provides connectivity between the enterprise campus module to the remote enterprise data center, enterprise branch, and enterprise teleworker modules. A. Enterprise Campus B. Enterprise Edge C. Service Provider Edge D. Remote

D. Remote

This portion of Cisco's Enterprise Architecture Model provides remote connectivity and includes the Enterprise Branch, the Enterprise Teleworker and the Enterprise Data Center. A. Enterprise Campus B. Enterprise Edge C. Service Provider Edge D. Remote

C. Service Provider Edge

This portion of Cisco's Enterprise Architecture Model spans across large geographic areas in a cost effective manner. A. Enterprise Campus B. Enterprise Edge C. Service Provider Edge D. Remote

C. Service Provider Edge

This portion of Cisco's Enterprise Architecture Model supports QoS and service level agreements. A. Enterprise Campus B. Enterprise Edge C. Service Provider Edge D. Remote

C. Service Provider Edge

This portion of Cisco's Enterprise Architecture Model supports security using VPNs (IPsec / MPLS) over Layer 2 and Layer 3 WANs. A. Enterprise Campus B. Enterprise Edge C. Service Provider Edge D. Remote

A. E-commerce networks and servers

This portion of Cisco's Enterprise Edge Sub-Module enables enterprises to support e-commerce applications through the Internet. It uses the high availability designs of the data center module. Devices located in this sub-mudule include web, application, and database servers, firewall and firewall routers, and network intrusion prevention systems (IPS). A. E-commerce networks and servers B. Internet connectivity and demilitarized zone (DMZ) C. Remote Access and VPN D. The WAN

B. Internet connectivity and demilitarized zone (DMZ)

This portion of Cisco's Enterprise Edge Sub-Module provides internal users with secure connectivity to Internet services such as public servers, email, and DNS. Connectivity to one or several Internet Service Providers (ISP) is also provided. Components of this submodule include firewall and firewall routers, Internet edge routers, FTP and HTTP servers, SMTP relay servers, and DNS servers. A. E-commerce networks and servers B. Internet connectivity and demilitarized zone (DMZ) C. Remote Access and VPN D. The WAN

C. Remote Access and VPN

This portion of Cisco's Enterprise Edge Sub-Module provides remote-access termination services, including authentication for remote users and sites. Components of this submodule include firewalls, dial-in access concentrators, Cisco Adaptive Security Appliances (ASA), and network Intrusion Prevention System (IPS) appliances. A. E-commerce networks and servers B. Internet connectivity and demilitarized zone (DMZ) C. Remote Access and VPN D. The WAN

D. The WAN

This portion of Cisco's Enterprise Edge Sub-Module uses various WAN technologies for routing traffic between remote sites and the central site. Enterprise WAN links include technologies such as Multiprotocol Label Switching (MPLS), Metro Ethernet, leased lines, Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH), PPP, Frame Relay, ATM, cable, digital subscriber line (DSL), and wireless. A. E-commerce networks and servers B. Internet connectivity and demilitarized zone (DMZ) C. Remote Access and VPN D. The WAN

A. Access-Distribution B. Services C. Data Center D. Enterprise Edge

This portion of Cisco's Modular Network Design Framework consists of the Internet Edge and the WAN Edge. These blocks offer connectivity to voice, video, and data services outside the enterprise. A. Access-Distribution B. Services C. Data Center D. Enterprise Edge

B. Services

This portion of Cisco's Modular Network Design is a generic block used to identify services such as centralized Lightweight Access Point Protocol (LWAPP) wireless controllers, unified communications services, policy gateways, and more. A. Access-Distribution B. Services C. Data Center D. Enterprise Edge

A. Enterprise Branch

This sub-module of the Enterprise Architecture module "Remote" allow employees to work at non-campus location and provide services such as security, telephony, and mobility options as well as general connectivity into the campus network and different components located inside the enterprise campus. A. Enterprise Branch B. Enterprise Teleworker C. Enterprise Data Center

A. Enterprise Branch

This sub-module of the Enterprise Architecture module "Remote" allows enterprises to extend head-office applications and services, such as security, Cisco Unified Communications, and advanced application performance, to the remote branches. A. Enterprise Branch B. Enterprise Teleworker C. Enterprise Data Center

B. Enterprise Teleworker

This sub-module of the Enterprise Architecture module "Remote" is responsible for providing connectivity for workers who operate out of different geographically dispersed locations, including home offices, hotels or customer/client sites. A. Enterprise Branch B. Enterprise Teleworker C. Enterprise Data Center

C. Enterprise Data Center

This sub-module of the Enterprise Architecture module "Remote" provides an added layer of security as it exists offsite and can provide disaster recovery and business continuance services for the enterprise. A. Enterprise Branch B. Enterprise Teleworker C. Enterprise Data Center

C. Multihomed

This term means connections to two or more ISPs A. Single-homed B. Dual-homed C. Multihomed D. Dual-multihomed

D. Dual-multihomed

This term means multiple connections to two or more ISPs A. Single-homed B. Dual-homed C. Multihomed D. Dual-multihomed

Collapsed Core

This type of network design consolidates the Distribution and Core layers of Cisco's three tier network model.

Enterprise Campus Module

This type of network is generally limited to a fixed geographic area, but it can span several neighboring buildings, for example, an industrial complex or business park environment. Regional offices, SOHOs, and mobile workers may need to connect to this for data and information.

B. Dual-homed

Two or more connections to a single ISP A. Single-homed B. Dual-homed C. Multihomed D. Dual-multihomed

Enterprise Campus Services Block Data Center Internet Edge

What are some examples of what Cisco deems as "Modularity" in its structured engineering concept?

Redundancy or Failover

What is something that should be considered when acquiring internet services from an ISP?

The Cisco Certified Design Associate (CCDA)

Which certification is an industry-recognized certification for network design engineers, technicians, and support engineers, who demonstrate the skills required to design basic campus, data center, security, voice, and wireless networks?

Enterprise Data Center Enterprise Branch Enterprise Teleworker

Adding to Cisco's Enterprise Architecture modules are the components that make up the Service Provider Edge. Those components are:

load balancing

At the Enterprise Data Center, network and devices offer server and application __________ to maximize performance.

C. Core

CPU-intensive packet manipulation caused by security, inspection, quality of service (QoS) classification, or other processes should be avoided at this layer. A. Access B. Distribution C. Core

Enterprise Campus Module

Cisco referes to a building or group of buildings connected into one enterprise network that consists of many LANs as this:

Hierarchy, Modularity, Resiliency, Flexibility

Cisco separates the structured engineering design into these four areas.

Internet Service Providers (ISP)

Cisco's Enterprise Architecture Model uses __________ to link to other sites.

Access-Distribution Services Data Center Enterprise Edge

Cisco's Modular Network Design includes these four areas.

Enterprise Campus Enterprise Edge Service Provider Edge

Cisco's primary Enterprise Architecture modules include:

fast WAN services

High-end switches such as the Cisco Nexus series switch use __________ such as Metro Ethernet (MetroE) to connect the enterprise campus to the remote enterprise data center.

1000+

How many devices make up a "Large network"?

201 to 999

How many devices make up a "Medium-Sized Network"?

Up to 99

How many devices make up a "Small Network"?

C. Core

More than other layers this layer is required to provide reliability and fault tolerance. A. Access B. Distribution C. Core

C. Core

More than the other layers this layer is required to perform high speed switching (i.e., fast transport). A. Access B. Distribution C. Core

C. Data Center

Originally called the server farm. This block of Cisco's Modular Network Design Framework is responsible for managing and maintaining many data systems that are vital to modern business operations. Employees, partners, and customers rely on data and resources here to effectively create, collaborate, and interact. A. Access-Distribution B. Services C. Data Center D. Enterprise Edge

synchronous

Redundant data centers provide backup using __________ and asynchronous data and application replication. Additionally, the network and devices offer server and application load balancing to maximize performance.

Virtual Private Network (VPN)

Teleworkers can securely log into the network over a __________ and gain access to authorized applications and services from a single cost-effective platform.

A. Single-homed

Term means a single connection to an ISP. A. Single-homed B. Dual-homed C. Multihomed D. Dual-multihomed

- High availability through a resilient hierarchical network design. - Integrate IP communications, mobility, and advanced security. - Utilize multicast traffic and QoS to optimize network traffic. - Provide increased security and flexibility using access management, VLANs and IPSec VPNs.

The Enterprise Campus Sub-modules provide:

Bulding Access Building Distribution Campus Core Data Center

The enterprise campus module consists of the following sub-modules:

Collapsed Core

The primary motivation for this type of network design is reducing network cost, while maintaining most of the benefits of the three-tier hierarchical model.

Internet Service Provider (ISP)

The teleworker module recommends that mobile users connect to the Internet using the services of a local __________, such as cable modem or DSL.

A. Access

This layer is referred to as the network backbone. A. Access B. Distribution C. Core

A. Access

This layer provides Address Resolution Protocol (ARP) Inspection services. A. Access B. Distribution C. Core

B. Distribution

This layer provides Aggregation of LAN or WAN links. A. Access B. Distribution C. Core

A. Access

This layer provides Power over Ethernet (PoE) and auxiliary VLANs for VoIP. A. Access B. Distribution C. Core

A. Access

This layer provides QoS classification and marking and trust boundaries. A. Access B. Distribution C. Core

A. Access

This layer provides VLAN Access Control List (VACL) services. A. Access B. Distribution C. Core

B. Distribution

This layer provides a boundary for route aggregation and summarization configured on interfaces toward the core layer. A. Access B. Distribution C. Core

B. Distribution

This layer provides broadcast domain control, because routers or multilayer switches do not forward broadcasts. Here the device acts as the demarcation point between broadcast domains. A. Access B. Distribution C. Core

A. Access

This layer provides layer 2 switching between network devices. A. Access B. Distribution C. Core

B. Distribution

This layer provides policy-based security in the form of access control lists (ACLs) and filtering. A. Access B. Distribution C. Core

A. Access

This layer provides port security. A. Access B. Distribution C. Core

B. Distribution

This layer provides redundancy and load balancing. A. Access B. Distribution C. Core

B. Distribution

This layer provides routing services between LANs and VLANs and between routing domains (e.g., EIGRP to OSPF) A. Access B. Distribution C. Core

A. Access

This layer provides spanning tree services. A. Access B. Distribution C. Core

C. Core

This layer should be scalable by using faster, and NOT more, equipment. A. Access B. Distribution C. Core

Enterprise Edge Module

This module from Cisco's Cisco Enterprise Architecture Model consists of these four sub-modules. - E-commerce networks and servers - Internet connectivity and - demilitarized zone (DMZ) - Remote Access and VPN The WAN

Enterprise Edge Module

This module from Cisco's Cisco Enterprise Architecture Model provides connectivity for voice, video, and data services outside the enterprise. This module often functions as a liaison between the enterprise campus module and the other modules.

Enterprise Campus Module

This module from Cisco's Enterprise Architecture Model provides the enterprise with high availability through a resilient multilayer design, redundant hardware and software features, and automatic procedures for reconfiguring network paths when failures occur. Integrated security protects against and mitigates the impact of worms, viruses, and other attacks on the network, even at the switch port level.

Cisco Enterprise Architecture Model

This network model provides all the benefits of the hierarchical network design on the campus infrastructure, and facilitates the design of larger, more scalable networks.