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Cisco 300-420 Exam Syllabus Topics:

SectionWeightObjectives
Services10%- Design network management
- Design end-to-end QoS policy
Enterprise Campus Security20%- Design network access control
- Design network security
Advanced Enterprise Campus Networks25%- Design for high availability
- Design campus network services (QoS, multicast, etc.)
- Design Layer 2 and Layer 3 campus networks
WAN for Enterprise Networks20%- Design WAN connectivity
- Design SD-WAN solution
- Design QoS for WAN
Advanced Addressing and Routing Solutions25%- Determine IPv6 migration strategy
- Create stable, secure, and scalable routing designs for Layer 3
- Create structured addressing designs

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Cisco Designing Cisco Enterprise Networks Sample Questions (Q158-Q163):

NEW QUESTION # 158
When a first hop redundancy solution is designed, which protocol ensures that load balancing occurs over multiple routers using a single virtual IP address and multiple virtual MAC addresses?

Answer: B


NEW QUESTION # 159
An engineer must design a scalable QoS architecture that allows the separation of the traffic into classes on predefined business requirements. The design must also utilize the differentiated services code points as the QoS priority descriptor value and support at least 10 levels of classification. Which QoS technology should the engineer include in the design?

Answer: B

Explanation:
DSCP Values allow for > 10 classes and are used in DiffServ to discriminate traffic.


NEW QUESTION # 160
Which three options focus of the current digital business era? (Choose three.)

Answer: B,C,D


NEW QUESTION # 161
An engineer is designing an IPv4 addressing plan for an enterprise with 1000 branches. Each branch requires a prefix for data and a prefix for voice. Each prefix must accommodate up to 128 hosts, and prefixes must facilitate summarization at aggregation points in the network. The security team requires a simple method for identifying voce prefixes. Which allocation does the engineer recommend from the RFC1918 address space?

Answer: D

Explanation:
For example:
Site 0001
Data:10.0.0.0/24
Voice: 10.0.1.0/24
summary route : 10.0.0.0/23
Site 0002
Data:10.0.2.0/24
Voice: 10.0.3.0/24
summary route: 10.0.2.0/23
....cont...
site 0129
Data:10.1.0.0/24
Voice: 10.1.1.0/24
summary route: 10.1.0.0/23
site 0130
Data:10.1.2.0/24
Voice: 10.1.3.0/24
summary route: 10.1.2.0/23
so 3rd octet is odd number assigned to voice, and even number assigned to data; for security team to recongize voice prefix, use an ACL with wildcast to filter odd number on third octet, started from 10.0.1.0 0.0.254.255, 10.1.1.0 0.0.254.255......, 10.1.1.0 0.0.254.255 etc; for 10.0.1.0 0.0.254.255, any IP in binary that started with 00001010.00000000.xxxxxxx1.xxxxxxxx will be matched (x = either 0 or 1), covert 3rd octet into dec, for example, 10000001 = 129 which is a voice VLAN.


NEW QUESTION # 162
An engineer must design an in-band management solution for a customer with branch sites. The solution must allow remote management of the branch sites using management protocols over an MPLS WAN. Queueing is implemented at the remote sites using these classes:

How must the solution prioritize the management traffic over the WAN?

Answer: B


NEW QUESTION # 163
......

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