642-874 ARCH Designing Cisco Network Service Architectures
Exam Number 642-874 Arch
Associated Certifications CCDP
Duration 75 minutes (50 – 60 questions)
Available Languages English, Japanese
Register Pearson VUE
The 642-874 Designing Cisco Network Service Architectures (ARCH) exam is the exam associated with the CCDP certification. This exam tests a candidate’s knowledge of the latest development in network design and technologies, including network infrastructure, intelligent network services and converged network solutions. Candidates can prepare for this exam by taking the ARCH Designing Cisco Network Service Architectures course.
The ARCH Designing Cisco Network Service Architectures (ARCH) v1.0 642-874 exam is a 75-minute test with 45−65 questions that are associated with the Cisco CCDP® certification. This exam tests a candidate’s knowledge of the latest developments in network design and technologies, including network infrastructure, intelligent network services, and converged network solutions. The exam is closed book and no outside reference materials are allowed.
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 Design Advanced Enterprise Campus Networks 30%
1.1 Design for high availability in enterprise networks
1.2 Design Layer 2 and Layer 3 campus infrastructures using best practices
1.3 Describe enterprise network virtualization considerations
1.4 Design for infrastructure services
1.5 Identify network management capabilities in Cisco IOS Software
2.0 Design Advanced IP Addressing and Routing Solutions for Enterprise Networks 24%
2.1 Create summary-able and structured addressing designs
2.2 Describe IPv6 for campus design considerations
2.3 Create stable and scalable routing designs for EIGRP for IPv4
2.4 Describe IPv4 multicast routing
2.5 Create IPv4 multicast services and security designs
2.6 Create stable and scalable routing designs for OSPF for IPv4
2.7 Create stable and scalable routing designs for BGP for IPv4
3.0 Design WAN Services for Enterprise Networks 8%
3.1 Describe Layer 1–3 WAN connectivity options
3.1.a Optical networking
3.1.d MPLS VPNs
3.2 Describe IPsec VPN technology options
3.3 Evaluate WAN service provider design considerations
3.3.c WAN backup
3.4 Create site-to-site VPN designs with appropriate technologies, scaling, and topologies
4.0 Design an Enterprise Data Center 32%
4.1 Describe data center network infrastructure best practices
4.2 Describe the components and technologies of a SAN network
4.3 Describe integrated fabric designs using Cisco Nexus technology
4.4 Describe network and server virtualization technologies for the data center
4.5 Create an effective e-commerce design
4.6 Design a high-availability data center network that is modular and flexible
5.0 Design Security Services 6%
5.1 Create firewall designs
5.2 Create NAC appliance designs
5.3 Create IPS/IDS designs
5.4 Create remote access VPN designs for the teleworker
Refer to the exhibit.
Which recommended practice is applicable?
A. If no core layer is deployed, the design will be easier to scale.
B. A dedicated campus core layer should be deployed for connecting three or more buildings.
C. If no core layer is deployed, the distribution switches should not be fully meshed.
D. A dedicated campus core layer is not needed for connecting fewer than five buildings.
When a router has to make a rate transition from LAN to WAN, what type of congestion needs
should be considered in the network design?
A. RX-queue deferred
B. TX-queue deferred
C. RX-queue saturation
D. TX-queue saturation
E. RX-queue starvation
F. TX-queue starvation
To which switch or switches should you provide redundant links in order to achieve high
availability with reliable fast convergence in the enterprise campus?
A. to a core switch running Cisco NSF and SSO from redundant distribution switches connected
with a Layer 2 link
B. to a core switch running Cisco NSF and SSO from redundant distribution switches connected
with a Layer 3 link
C. to two core switches from redundant distribution switches connected with a Layer 2 link
D. to two core switches from redundant distribution switches connected with a Layer 3 link
E. to two core switches running Cisco NSF and SSO from two redundant distribution switches
running Cisco NSF and SSO
Which of these statements is correct regarding Stateful Switchover and Cisco Nonstop
A. Utilizing Cisco NSF in Layer 2 environments can reduce outages to one to three seconds.
B. Utilizing SSO in Layer 3 environments can reduce outages to one to three seconds.
C. Distribution switches are single points of failure causing outages for the end devices.
D. Utilizing Cisco NSF and SSO in a Layer 2 environment can reduce outages to less than one
E. NSF and SSO with redundant supervisors have the most impact on outages at the access
When is a first-hop redundancy protocol needed in the distribution layer?
A. when the design implements Layer 2 between the access and distribution blocks
B. when multiple vendor devices need to be supported
C. when preempt tuning of the default gateway is needed
D. when a robust method of backing up the default gateway is needed
E. when the design implements Layer 2 between the access switch and the distribution blocks