300-320 ARCH Designing Cisco Network Service Architectures

Exam Number 300-320
Associated Certifications CCDP
Duration 75 minutes (60 – 70 questions)
Available Languages English

Exam Description
The Designing Cisco Network Service Architectures (ARCH) exam (300-320) is a 75-minute assessment with 60 – 70 questions associated with the Cisco Certified Design Professional certification. This exam tests a candidate’s knowledge of the latest development in network design and technologies, including L2 and L3 infrastructures for the enterprise, WAN technologies, data center integration, network security and network services.

The following topics are general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.

1.0 Advanced Addressing and Routing Solutions for Enterprise Networks 22%

1.1 Create structured addressing designs to facilitate summarization

1.1.a Hierarchy
1.1.b Efficiency
1.1.c Scalability
1.1.d NAT

1.2 Create stable, secure, and scalable routing designs for IS-IS

1.3 Create stable, secure, and scalable routing designs for EIGRP

1.4 Create stable, secure, and scalable routing designs for OSPF

1.5 Create stable, secure, and scalable routing designs for BGP

1.5.a Transit prevention
1.5.b Basic route filtering
1.5.c Authentication
1.5.d Communities
1.5.e Basic traffic engineering (load distribution, creating path symmetry)
1.5.f Route reflectors

1.6 Determine IPv6 migration strategies

1.6.a Overlay (tunneling)
1.6.b Native (dual-stacking)
1.6.c Boundaries (IPv4/IPv6 translations)

2.0 Advanced Enterprise Campus Networks 20%

2.1 Design for high availability

2.1.a First Hop Redundancy Protocols
2.1.b Device virtualization

2.2 Design campus Layer 2 infrastructures

2.2.a STP scalability
2.2.b Fast convergence
2.2.c Loop-free technologies

2.3 Design multicampus Layer 3 infrastructures

2.3.a Convergence
2.3.b Load sharing
2.3.c Route summarization
2.3.d Route filtering
2.3.e VRFs
2.3.f Optimal topologies

2.4 Design a network to support network programmability

2.4.a Describe Application Centric Infrastructures (ACI)
2.4.b Select appropriate controller to meet requirements
2.4.c Identify and address key security issues with network programmability

3.0 WANs for Enterprise Networks 17%

3.1 Compare and contrast WAN connectivity options

3.1.a Dynamic Multipoint VPN (DMVPN)
3.1.b Layer 2 VPN
3.1.c MPLS Layer 3 VPN
3.1.d IPsec
3.1.e Generic Routing Encapsulation (GRE)
3.1.f Private lines

3.2 Design site-to-site VPNs

3.2.a DMVPN
3.2.b Layer 2 VPN
3.2.c MPLS Layer 3 VPN
3.2.d IPSec
3.2.e Group Encrypted Transport VPN (GETVPN)

3.3 Design for a resilient WAN strategy

3.3.a Single-homed
3.3.b Multi-homed
3.3.c Backup connectivity
3.3.d Failover

3.4 Design Extranet connectivity

3.4.a VPN
3.4.b Private lines
3.4.c Multitenant segmentation

3.5 Design Internet edge connectivity

3.5.a DMZ
3.5.b NAT
3.5.c Proxy functionality
3.5.d Resiliency
3.5.e Basic traffic engineering techniques (outbound/inbound load distribution, active/failover, symmetric outbound traffic flows)

4.0 Enterprise Data Center Integration 17%

4.1 Describe a modular and scalable data center network

4.1.a Top-of-rack
4.1.b End-of-row
4.1.c Multitenant environments
4.1.d Multitier topologies

4.2 Describe network virtualization technologies for the data center

4.2.a VPC
4.2.b VSS
4.2.c VDCs
4.2.d VRFs
4.2.e Multichassis EtherChannel
4.2.f VXLAN
4.2.g TRILL / Fabric Path

4.3 Describe high availability in a data center network

4.3.a VPC
4.3.b VSS
4.3.c Multichassis EtherChannel

4.4 Design data center interconnectivity

4.4.a OTV
4.4.b Private Line
4.4.c L2 vs. L3
4.4.d VPLS
4.4.e A-VPLS

4.5 Design data center and network integration

4.5.a Traffic flow
4.5.b Bandwidth
4.5.c Security
4.5.d Resiliency

5.0 Security Services 13%

5.1 Design firewall and IPS solutions

5.1.a Modes of operation
5.1.b Clustering
5.1.c High availability techniques
5.1.d IPS functionality and placement
5.1.e Multiple contexts

5.2 Design network access control solutions

5.2.a 802.1x
5.2.b TrustSec
5.2.c EAP
5.2.d Authentication services
5.2.e RBAC
5.2.f Basic denial of service mitigation techniques

5.3 Design infrastructure protection

5.3.a Infra structure ACLs
5.3.b CoPP
5.3.c Layer 2 / Layer 3 security considerations

6.0 Network Services 11%

6.1 Select appropriate QoS strategies to meet customer requirements

6.1.a DiffServ
6.1.b IntServ

6.2 Design end-to-end QoS policies

6.2.a Classification and marking
6.2.b Shaping
6.2.c Policing
6.2.d Queuing

6.3 Describe network management techniques

6.3.a In-band vs. out-of-band
6.3.b Segmented management networks
6.3.c Prioritizing network management traffic

6.4 Describe multicast routing concepts

6.4.a Source trees, shared trees
6.4.b RPF
6.4.c Rendezvous points

6.5 Design multicast services

6.5.a SSM
6.5.b PIM bidirectional
6.5.c MSDP

Which option maximizes EIGRP scalability?

A. route redistribution
B. route redundancy
C. route filtering
D. route summarization

Answer: D

To which network layer should Cisco Express Forwarding be tuned to support load balancing and to make more informed forwarding decisions?

A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
E. Layer 5
F. Layer 6
G. Layer 7

Answer: D

Which option is the Cisco preferred, most versatile, and highest-performance way to deploy IPv6 in existing IPv4 environments?

A. dual stack
B. hybrid
C. service block
D. dual service

Answer: A

An engineer is designing an address plan. Which IPv6 prefix removes any consideration regarding the number of hosts per subnet?

A. /32
B. /48
C. /64
D. /96

Answer: C

Which protocol is best when there are circuit connections with two different ISPs in a multihoming scenario?

C. IPsec

Answer: B

What is the latest Cisco high-availability solution?


Answer: C

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