CCDP Flashcards
What are Cisco recommended best practices for the Distribution layer?
Answer:
Use first-hop redundancy protocols. HSRP or GLBP (Gateway Load Balancing Protocol) should be used if you implement Layer 2 links between the access and distribution. Use layer 3 links between distribution and the core switches to allow for fast convergence and load balancing.
Build layer 3 triangles not squares. Use the distribution switches to connect Layer 2 VLANs that span multiple access Layer switches. Summarize routes from distribution to the core of the network to reduce routing over-head. Use VSS (Virtual Switching System) as an option to eliminate the use of STP.
Where do we place a DHCP server?
Answer:
Enterprise Campus Data Center / Server Farm
Enterprise Branch of the Enterprise Campus Architecture
What does the 802.11; architecture contain?
Answer:
- 4way hand shake and Group Key Handshake. Both use 802.1x for authentication (entailing the use of Extensible Authentication Protocol [EAP]) and an authentication server.
Robust Security Network (RSN) for the establishment and tracking of robust security network associations.
Advanced Encryption Standards (AES) for confidentiality, integrity, and origin authentication.
Enterprise Campus Core consist of which sub-modules?
Answer:
A) Campus Core
B) Building Distribution
C) Building Access
D) Server Farm / Data Center
Which three factors best justify WAN link redundancy between geographically dispersed sites? (Choose three)
A) important traffic flows B) lack of speed C) high link utilization D) uncertain reliability E) excessive packet transmission rate F) high expense of transmitting data
Answer:
A) important traffic flows
B) lack of speed
D) uncertain reliability
Which of these accurately describes dial backup routing?
A) it always uses distance vector routing protocols
B) it always uses permanent static routes
C) the router inflates the dial backup link when a failure is detected on the primary link
D) it is supplied by the set vice provider as a secondary PVC at no additional charge
E) once the backup link is activated it will remain active even after the primary link is restored
Answer:
C) the router inflates the dial backup link when a failure is detected on the primary link
According to Cisco, which four improvements are the main benefit of the PPDIOO Lifecycles approach to network design?
A) faster RIO
B) improve business agility
C) increase network availability
D) faster access to application and services
E) lower total cost of network ownership
F) better implementation team aggregation
Answer:
B) improve business
C) increase network availability
D) faster access to application and services
E) lower total cost of network ownership
Western Associated News Agency recently acquired a large news organization with several sites, which will allow it to expand to worldwide markets. The new acquisition includes these connectivity technologies:
Frame Relay ATM
SONET cable
DSL wireless
From a Layer 1 viewpoint, which Enterprise Edge module will be most affected?
A) ISP B) PSTN C) E-Commerce D) WAN/MAN E) Edge Distribution F) Internet Connectivity
Answer:
D) WAN/MAN
What are Cisco’s recommended best practice for the Access Layer?
Answer:
Limit VLANs to a single closet. Use RPVST+ if STP is required. Set trunks to ON and ON with no-negotiate. Manually prune un-used VLANs to avoid broadcast propagation. Use VTP Transparent mode, because there is little need for a common VLAN database in hierarchical networks. Disable trunking on host ports, because it is not necessary. Doing so provides more security and speeds up PortFast. Consider implementing routing in the access layer to provide fast convergence and Layer 3 load balancing. Use Cisco STP Toolkits which provides PortFast, Loop Guard, Root Guard and BPDU Guard.
Which three mechanisms are required to deploy QoS on an IP WAN? (Choose three)
A) traffic classification B) call Admission Control C) queuing and scheduling D) link efficiency techniques E.) traffic shaping F) bandwidth provisioning
Answer:
B) Call Admission Control
D) link efficiency techniques
E.) traffic shaping
Enterprise Edge Area consist of which sub-modules?
Answer:
A) E-commerce network services
B) Internet connectivity and demilitarized zone (DMZ)
C) VPN and remote access
D) Enterprise WAN
Which three types of WAN topologies can be deployed in the Cisco Enterprise Architecture Enterprise Edge WAN module? (Choose three)
A) ring B) star C) full mesh D) core/edge E) collapsed core F) partial mesh
Answer:
B) star
C) full mesh
F) partial mesh
Which two of these best describe the implementation of a WAN Backup design over the Internet? (Choose two)
A) a best-effort method
B) requires no ISP coordination or involvement
C) bandwidth guaranteed based on interface configuration
D) designed as an alternative to a failed WAN connection
E) implemented with a point-to-point logical link using a Layer 2 tunnel
Answer:
A) a best-effort method
D) designed as an alternative to a failed WAN connection
Which of these is the best routing deployment for a single dedicated link to an ISP for Internet access?
A) EIGRP B) RIP C) BGP D) Static E) OSPF
Answer:
D) Static
When designing using the Cisco Enterprise Architecture, in which Enterprise Campus layer do the Enterprise Edge and Enterprise WAN modules establish their connection?
A) Campus Core B) Building Access C) Enterprise Branch D) Building Distribution E) Enterprise Data Center
Answer:
A) Campus Core
When designing using the Cisco Enterprise Architecture, in which Enterprise Campus layer does the Enterprise Teleworker module establish its connection?
A) Building Core B) Building Access C) Enterprise Branch D) Enterprise Data Center E) WAN/Internet
Answer:
E) WAN/Internet
Which two statements are true about the Data Center Aggregation layer?
A) Layer 4 through layer 7 services are provided at that layer.
B) STP should never be supported in that layer.
C) That layer is the critical point for control and application services.
D) Layer 2 connectivity is provided in that layer from the data center to the core.
Answer:
A) Layer 4 through layer 7 services are provided at that layer.
C) That layer is the critical point for control and application services.
An organization needs a WAN Transport technology that meets these criteria:
has a low initial cost
provides low-to-medium BW
has medium-to-high latency and jitter
Which technology would you suggest?
A) DSL B) X.25 C) ISDN D) wireless E) analog modem
Answer:
A. DSL
Which two statements best describe the implementation of Overlay VPN connectivity for remote access in the Enterprise Edge WAN module? (Choose two)
A) It must use Layer 2 labels to forward packets
B) It uses dedicated point-to-point links.
C) Bandwidth is provisioned on a site-to-site basis.
D) The ISP actively participates in customer routing.
E) Optimum routing between customer sites requires a full mesh of virtual circuits.
Answer:
C) Bandwidth is provisioned on a site-to-site basis.
E) Optimum routing between customer sites requires a full mesh of virtual circuits.
What is the benefit of GLBP ?
Answer:
Global Load Balancing Protocol
A) Load sharing - can be configured in a way that traffic LAN clients can be shared b multiple routers.
B) Multiple virtual routers - GLBP supports up to 1024 routers virtual on each interface physically of a router.
C) Preemption - GLBP enables you to preempt an active virtual gateway within a higher-priority backup.
D) Authentication - simple text password authentication is supported.
Which codec does Cisco recommend for WAN links?
A) G.711
B) G.723
C) G.728
D) G.729
Answer:
D) G.729
What are “Four” key pillars, network services are divided into for Borderless Network Services?
Answer:
A) Mobility - Cisco Motion delivers anywhere, anytime access to information for wired, wireless and remote from any devices. Provides detection, classification, location and imitation of sources.
B) Security - Cisco TrustSec provides foundation for identity-directed, policy-based access. Uses ASAs, Cisco Virtualization Security, AnyConnect.
C) Application performance - Application Velocity optimizes the speed and performance using Wide Application Area Services (WASS).
D) Voice and Video - (IP Communications) Medianet for the Enterprise optimizes multimedia through the automatic endpoints and optimized network configurations.
Place the PPDIOO Methodology in the correct order
Optimize - Step 1 Design - Step 2 Prepare - Step 3 Implement - Step 4 Operate - Step 5 Plan - Step 6
Answer:
Step 1: Prepare Step 2: Plan Step 3: Design Step 4: Implement Step 5: Operate Step 6: Optimize
Service Providers Edge Module consist of what?
Answer:
1) Internet Services.
2) PSTN Services - (Public Switch Telephony Network).
3) WAN Services.
Give a description of Enterprise Remote Branch module.
Answer:
The enterprise remote branch module normally consist of remote offices, small offices or sales offices. These branch offices rely on the WAN to use the services and applications provided in the main campus.
Which one of the statements is true concerning the enterprise data center?
A) It can be located at the enterprise campus or at a remote branch.
B) Remote data center connectivity requirements align with the small office design.
C) The data center designs will offer sustainability depending on whether the location is on campus or remote.
D) A remote branch with data center becomes the enterprise campus.
Answer:
C) The data center designs will offer sustainability depending on whether the location is on campus or remote.
Give a description of Enterprise Edge Area.
Answer:
Consist of -
1) E-commerce
2) Internet
3) VPN / remote access
4) WAN modules
With deterministic Wireless LAN Controller redundancy design, the different options available to the designer have their own strengths. Which one of these statements is an example of such a strength?
A) Dynamic load-balancer. or salt and pepper access point design, avoids the potential impact of oversubscription on aggregated network performance.
B) N+N redundancy configuration allows logical grouping access points an controllers to minimize inter-controller roaming.
C) N+1 redundancy configuration uses layer 3 inter-controller roaming.
Answer:
B) N+N redundancy configuration allows logical grouping access points an controllers to minimize inter-controller roaming.
What are the three main components of Cisco Data Center 3.0 architecture?
Answer:
A) Vrtualizations - Virtual local-area networks (VLANs); virtual storage-area networks (VSAN); virtual device context (VDCs) help to segment the LAN; SAN and network device instances.
B) Unified fabric - Fabric Channel over Ethernet (FCoE); Internet Small Computer System Interface (iSCSI).
C) Unified Computing - Cisco Unified Computing System (UCS) in a innovative next-generation data center platform that conveys computing, network, storage and virtualization together into on system. Supports Extended Memory Technology patented by Cisco. Increasing productivity with Just-In-Time provision using services profiles.
Which two statements about class maps are true?
A) These class maps are referenced within the global policy by default for http inspection. B) These class maps are all type inspection http class maps. C) These class maps clarify traffic using regular expressions. D) These class maps are layer 3 / 4 class maps. E) These class maps are used within the inspection_default class maps for matching the default inspection traffic.
Answer(s):
B) These class maps are all type inspection http class maps.
E) These class maps are used within the inspection_default class maps for matching the default inspection traffic.
