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Topic 2: Exam Pool B
Refer to the exhibit.
An engineer must configure static NAT on R1 lo allow users HTTP access to the web server on TCP port 80. The web server must be reachable through ISP 1 and ISP 2. Which command set should be applied to R1 to fulfill these requirements?
A.
ip nat inside source static tcp 10.1.1.100 80 209.165.200.225 80 extendable
ip nat inside source static tcp 10.1.1.100 80 209.165.201.1 80 extendable
B.
ip nat inside source static tcp 10.1.1.100 80 209.165.200.225 80
ip nat inside source static tcp 10.1.1.100 80 209.165.201.1 80
C.
ip nat inside source static tcp 10.1.1.100 80 209.165.200.225 80
ip nat inside source static tcp 10.1.1.100 8080 209.165.201.1 8080
D.
ip nat inside source static tcp 10.1.1.100 80 209.165.200.225 80 no-alias
ip nat inside source static tcp 10.1.1.100 80 209.165.201.1 80 no-alias
ip nat inside source static tcp 10.1.1.100 80 209.165.200.225 80
ip nat inside source static tcp 10.1.1.100 80 209.165.201.1 80
In a Cisco SD-WAN solution, how Is the health of a data plane tunnel monitored?
A.
with IP SLA
B.
ARP probing
C.
using BFD
D.
with OMP
using BFD
An engineer is implementing a Cisco MPLS TE tunnel to improve the streaming experience for the clients of a video-on-demand server. Which action must the engineer perform to configure extended discovery to support the MPLS LDP session between the headend and tailend routers?
A.
Configure the interface bandwidth to handle TCP and UDP traffic between the LDP peers
B.
Configure a Cisco MPLS TE tunnel on both ends of the session
C.
Configure an access list on the interface to permit TCP and UDP traffic
D.
Configure a targeted neighbor session.
Configure a Cisco MPLS TE tunnel on both ends of the session
What is the difference between a RIB and a FIB?
A.
The RIB is used to make IP source prefix-based switching decisions
B.
The FIB is where all IP routing information is stored
C.
The RIB maintains a mirror image of the FIB
D.
The FIB is populated based on RIB content
The FIB is populated based on RIB content
Explanation: CEF uses a Forwarding Information Base (FIB) to make IP destination prefixbased switching decisions. The FIB is conceptually similar to a routing table or information base. It maintains a mirror image of the forwarding information contained in the IP routing table. When routing or topology changes occur in the network, the IP routing table is updated, and those changes are reflected in the FIB.
The FIB maintains next-hop address information based on the information in the IP routing table. Because there is a one-to-one correlation between FIB entries and routing table entries, the FIB contains all known routes and eliminates the need for route cache maintenance that is associated with earlier switching paths such as fast switching and optimum switching.
Note: In order to view the Routing information base (RIB) table, use the “show ip route” command. To view the Forwarding Information Base (FIB), use the “show ip cef” command. RIB is in Control plane while FIB is in Data plane.
When is the Design workflow used In Cisco DNA Center?
A.
in a greenfield deployment, with no existing infrastructure
B.
in a greenfield or brownfield deployment, to wipe out existing data
C.
in a brownfield deployment, to modify configuration of existing devices in the network
D.
in a brownfield deployment, to provision and onboard new network devices
in a greenfield deployment, with no existing infrastructure
Explanation:
The Design area is where you create the structure and framework of your network, including the physical topology, network settings, and device type profiles that you can apply to devices throughout your network. Use the Design workflow if you do not already have an existing infrastructure. If you have an existing infrastructure, use the Discovery feature.
https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automationand-management/dna-center/2-1-2/user_guide/b_cisco_dna_center_ug_2_1_2/b_cisco_dna_center_ug_2_1_1_chapter_0110.html
Reference: https://synoptek.com/insights/it-blogs/greenfield-vs-brownfield-softwaredevelopment/“Greenfield development refers to developing a system for a totally new environment and requires development from a clean slate – no legacy code around. It is an approach used when you’re starting fresh and with no restrictions or dependencies.”
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