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Exam A
QUESTION 1
Which of these Layer 2 access designs does not support VLAN extensions? (Choose one)
A. FlexLinks
B. loop-free U
C. looped square
D. looped triangle
Correct Answer: B Section: (none) Explanation
Explanation/Reference: Explanation:
A.Self-study v2 Page 223 Refer Table C Self-study v2 Page 214 D Self-study v2 Page 213
QUESTION 2
As a critical part of the design for the Enterprise Campus network, which of the following two are true concerning intrusion detection and prevention solution? (Choose two)
A. IDS is capable of both inline and promiscuous monitoring, while IPS is only capable of promiscuous monitoring
B. IDS will stop malicious traffic from reaching its intended target for certain types of attacks.
C. IPS processes information on Layer 3 and 4 as well as analyzing the contents and payload of the packets for more sophisticated embedded attacks (Layers 3 to 7)
D. IPS inspects traffic statefully and needs to see both sides of the connection to function properly
E. IDS placement at the perimeter of Data Center outside the firewall generates many warnings that have relatively low value because no action is likely to be taken on this information
Correct Answer: CE Section: (none) Explanation
Explanation/Reference: Explanation:
C Self-study v2 Page 389 E Self-study v2 Page 392
QUESTION 3
Drag the characteristic on the left to the corresponding IPSec VPN solution on the right.
Select and Place:
Correct Answer:
Section: (none) Explanation
Explanation/Reference:
QUESTION 4
OSPF stub areas are an important tool for the Network designer, which of the following two should be considered when utilizing OSPF stub areas? (Choose two)
A. OSPF stub areas increase the size of the LSDB with the addition of Type 3 and 5 LSAs
B. OSPF not so stubby areas are particularly useful as a simpler form of summarization
C. OSPF stub areas are always insulated from external changes
D. OSPF totally stubby cannot distinguish among ABRs for the best route to destinations outside the areas
E. OSPF stub areas can distinguish among ASBRs for destinations that are external to the OSPF Domain
Correct Answer: CD Section: (none) Explanation
Explanation/Reference: Explanation:
C Self-study v2 Page 128 E Self-study v2 Page 130
QUESTION 5
Which two statements are correct regarding Flex Links? (Choose two)
A. An interface can belong to multiple Flex Links.
B. Flex Links operate only over single pairs of links.
C. Flex Link pairs must be of the same interface type
D. Flex Links automatically disable STP so no BPDUs are propagated
E. Failover from active to standby on Flex Links takes less than a second
Correct Answer: BD Section: (none) Explanation
Explanation/Reference: Explanation:
B Self-study v2 Page 220 D Self-study v2 Page 220
QUESTION 6
Which of these technologies is characterized as being a multipoint Layer 2 VPN that connects two or more customer devices using Ethernet bridging techniques?
A. DPT
B. MPLS
C. VPLS
D. CWDM
E. DWDM
F. SONET/SDH
Correct Answer: C Section: (none) Explanation
Explanation/Reference: Explanation:
C Self-study v2 Page 176
QUESTION 7
Drag the best practice recommendation for an Enterprise Campus network on the left to the technology to which it most applies on the right.
Select and Place:
Correct Answer:
Section: (none) Explanation
Explanation/Reference:
QUESTION 8
Why is STP required when VLANs span access layer switches?
A. to ensure a loop-free topology
B. to protect against user-side loops
C. in order to support business applications
D. because of the risk of lost connectivity without STP
E. for the most deterministic and highly available network topology
Correct Answer: B Section: (none) Explanation
Explanation/Reference: Explanation:
B Self-study v2 Page 47
QUESTION 9
When designing the IP routing for the Enterprise Campus network, which of these following two iBGP considerations should be taken into account? (Choose two)
A. iBGP dual homing with different iSPs puts the Enterprise at the risk of becoming a transit network
B. iBGP requires a full mesh of eBGP peers
C. Routers will not advertise iBGP learned routers to other iBGP peers.
D. The use of route reflections or Confederation eliminate any full mesh requirement while helping to scale iBGP
E. iBGP peers do not add any information to the AS path
Correct Answer: AD Section: (none) Explanation
Explanation/Reference: Explanation:
A Self-study v2 Page 113 D Self-study v2 Page 148,145
QUESTION 10
Which virtualization technology allows multiple physical devices to be combined into a single logical device?
A. device visualization
B. device clustering
C. server visualization
D. network visualization
Correct Answer: B Section: (none) Explanation
Explanation/Reference: Explanation:
QUESTION 11
Which two of these are characteristics of MPLS VPNs? (Choose two)
A. Layer 3 MPLS VPNs can forward only IP packets
B. Layer 2 MPLS VPNs can forward any network protocol
C. MPL S label paths are automatically formed based on Layer 2 frames
D. Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 frames
E. In Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies
Correct Answer: AB Section: (none) Explanation
Explanation/Reference: Explanation:
A Self-study v2 Page 183 B Self-study v2 Page 183
QUESTION 12
Which technology is an example of the need for a designer to clearly define features and designed performance when designing advanced WAN services with a service provider?
A. FHRP to remote branches.
B. Layer 3 MPLS VPNs routing.
C. Control protocols (for example Spanning Tree Protocol) for a Layer 3 MPLS service.
D. Intrusion prevention, QoS, and stateful firewall support network wide.
Correct Answer: B Section: (none) Explanation Explanation/Reference: Explanation:
B Self-study v2 Page 183
QUESTION 13
Which two restrictions must the Enterprise Campus network designer consider when evaluating WAN connectivity options? (Choose two)
A. OSPF over multicast EMS or VPLS network may not have consistent broadcast or multicast performance.
B. IP multicast is not supported over Lover 3 MPLS VPN; instead a Layer 2 MPLS WN must be utilized with service provider support
C. QoS requirements with MPLS-VPN must be implemented by the service provider
D. Hierarchical VPLS designs are the least scalable
E. IGMP snooping is not on option with VPLS or EMS; instead administrative scoping or allowing sufficient bandwidth for unnecessary multicast traffic at the edge links is required
Correct Answer: AC Section: (none) Explanation
Explanation/Reference: Explanation:
A Self-study v2 Page 181 C Self-study v2 Page 181
B – False – Self-study v2 Page 184 C – False – Self-study v2 Page 184 E – False – Self-study v2 Page 182
QUESTION 14
There are 3 steps to confirm whether a range of IP address can be summarized. When of the following is used in each of these 3 steps?
A. The first number in the contiguous block of addresses
B. The last number in the contiguous block of addresses
C. The size of the contiguous block of addresses
D. The subnet mask of the original network address
Correct Answer: C Section: (none) Explanation
Explanation/Reference: Explanation:
contiguous = nearby C Self-study v2 Page 103 A block of IP addresses might be able to be summarized if it contains sequential numbers in one of the octets
QUESTION 15
Drag the characteristic on the left the associated firewall deployment or topology on the right.
Select and Place:
Correct Answer:
Section: (none) Explanation
Explanation/Reference:
QUESTION 16
Which of these recommendations is most appropriate for the core layer in the Cisco Campus Architecture?
A. Utilize Layer 3 switching
B. Utilize software accelerated services
C. Aggregate end users and support a feature-rich environment
D. Perform packet manipulation and filtering at the core layer
E. Use redundant point to-point Layer 2 interconnections when where is a link or node failure.
Correct Answer: A Section: (none) Explanation
Explanation/Reference: Explanation:
A Self-study v2 Page 37
The core is a high-speed, Layer 3 switching environment using hardware-accelerated services….
QUESTION 17
Which of the following is true concerning best design practices at the switched Access layer of the traditional layer2 Enterprise Campus Network?
A. Cisco NSF with SSO and redundant supervisors has the most impact on the campus in the Access layer
B. Provides host-level redundancy by connecting each end device to 2 separate Access switches
C. Offer default gateway redundancy by using dual connections from Access switches to redundant Distribution layer switches using a FHRP
D. Include a link between two Access switches to support summarization of routing information
Correct Answer: C Section: (none) Explanation
Explanation/Reference: Explanation:
C Self-study v2 Page 34
QUESTION 18
Which three Layer 2 access designs have all of their uplinks in an active state? (Choose three)
A. Flex Links
B. loop free U
C. looped square
D. looped triangle
E. loop-tree inverted U
Correct Answer: BCE Section: (none) Explanation
Explanation/Reference: Explanation:
B Self-study v2 Page 116 Experience teaches that it is much better to have distinct pockets of routing protocols and redistribute than to have a random mix of routers and routing protocols with ad hoc redistribution.
QUESTION 19
In base e-Commerce module designs, where should firewall perimeters be placed?
A. core layer
B. Internet boundary
C. aggregation layer
D. aggregation and core layers
E. access and aggregation layers
Correct Answer: A Section: (none) Explanation
Explanation/Reference: Explanation:
A Self-study v2 Page 345
The base e-commerce design includes firewalls only in the core layer.
OR Page 318
In the base design, the core layer supports the first stage of firewalls.
QUESTION 20
When an Enterprise Campus network designer is addressing the merger of two companies with different IGPs, which of the following is considering a super routing design?
A. Eliminate the management and support for redistribution by choosing and cutting over to a single IGP at the time of merger
B. Maintain distinct pockets across a moving boundary of routing protocols, redistributing between them
C. Manipulate the administrative distance of the different IGPs to be equal throughout the network
D. Leave the IGPs independent without redistribution wherever communication between company entities is not required
Correct Answer: B Section: (none) Explanation
Explanation/Reference: Explanation:
B Self-study v2 Page 116
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