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DRAG DROP
Drag and drop the descriptions from the left onto the corresponding WAN connectivity types and categories on the right.
Select and Place:
Answer is in the explanation below.
DRAG DROP
Drag and drop the properties from the left onto the protocols they describe on the right.
Select and Place:
Answer is in the explanation below.
Which two statements describe source trees in a multicast environment? (Choose two.)
Select all that apply, then click Submit answer.
Source trees guarantee the minimum amount of network latency for forwarding multicast traffic
Source trees create an optimal path between the source and the receivers
Source trees use a single common root placed at some chosen point in the network
Source trees can introduce latency in packet delivery
Source trees can create suboptimal paths between the source and the receivers
A network engineer must segregate three interconnected campus networks using IS-IS routing. A two-layer hierarchy must be used to support large routing domains and to avoid more specific routes from each campus network being advertised to other campus network routers automatically. Which two actions does the engineer take to accomplish this segregation? (Choose two.)
Select all that apply, then click Submit answer.
Designate two IS-IS routers as BDR routers at the edge of each campus, and configure one BDR for all Level 1 routers and one BDR for all Level 2 routers.
Designate two IS-IS routers from each campus to act as Level 1/Level 2 backbone routers at the edge of each campus network.
Assign the same IS-IS NET value for each campus, and configure internal campus routers with Level 1/Level 2 routing.
Utilize different MTU values for each campus network segment. Level 2 backbone routers must utilize a larger MTU size of 9216.
Assign a unique IS-IS NET value for each campus, and configure internal campus routers with Level 1 routing.
An organization is designing a detailed QoS plan that limits bandwidth to specific rates. Which two parameters are supported by the traffic policing feature? (Choose two.)
Select all that apply, then click Submit answer.
violating
marking
shaping
bursting
conforming
Refer to the exhibit. An engineer Is designing a multicampus Layer 3 Infrastructure using EIGRP as the routing protocol. The design must provide quick replies to queries In the event of a downlink, prevent unnecessary queries, and ensure that traffic does not unnecessarily transit the access layer. Which two actions must the engineer take for the network design? (Choose two.)
Select all that apply, then click Submit answer.
Configure core layer switches as stub routers.
Configure distribution layer switches to summarize routes to the core layer.
Configure access layer switches as stub routers.
Configure access layer and core layer switches as stub routers.
Configure access layer switches to summarize routes to the distribution layer.
Which two functions does the control plane node provide in a Cisco SD-Access architecture? (Choose two.)
Select all that apply, then click Submit answer.
LISP proxy ETR
host tracking database
policy mapping
map server
endpoint registration
An architect must address sustained congestion on the access and distribution uplink of network. QoS has already been implemented and optimized, but it is no longer effective in ensuring optimal network performance. Which two solutions should the architect use to improver network performance? (Choose two)
Select all that apply, then click Submit answer.
Reconfigure QoS based on the IntServ model
Utilize random early detection to manage queues
Implement higher-speed uplink interfaces
Bundle additional uplinks into logical EtherChannels
Configure selective packet discard to drop noncritical network traffic.
What is the function of the multicast Reverse Path Forwarding check?
Select an option, then click Submit answer.
It allows for a loop-free distribution tree from the source to receivers.
It serves as an Auto RP Mapping agent.
It prevents bootstrap messages from reaching all routers.
It is used to discover and announce RP-set information.
Refer to the exhibit. An architect is designing a BGP solution to connect a remote branch to a service provider. There are several prefixes within the branch that the company does not want to be advertised to the internet. Which solution should the architect use to accomplish this?
Select an option, then click Submit answer.
Set the BGP Internet community for all prefixes.
Implement the NOPEER community.
Use the BGP No-Advertise community for the prefixes to exclude.
Attach the No-Export community with the prefixes to exclude
In a cisco SD-Access brownfield deployment scenario, which configuration deployment must be taken with Cisco DNA center?
Select an option, then click Submit answer.
Subnet stretching
LAN automation
Automated UNDERLAY
Manual underlay
How is redundancy achieved among Cisco vBond Orchestrators in a Cisco SD-WAN deployment?
Select an option, then click Submit answer.
The IP addresses of all Orchestrators are mapped to a single DNS name.
The closest Orchestrator to each Cisco WAN Edge router is selected.
Cisco WAN Edge routers are configured with all Orchestrators using their IP addresses and priority.
A single Cisco Orchestrator is deployed in each network.
An engineer uses Postman and YANG to configure a router with:
OSPF process ID 400
network 192.168.128.128/25 enabled for Area 0
Which get-config reply verifies that the model set was designed correctly?
A)
B)
C)
D)
Select an option, then click Submit answer.
Option A
Option B
Option C
Option D
An engineer must use YANG with an XML representation to configure a Cisco IOS XE switch with these specifications:
IP address 10.10.10.10/27 configured on the interface GigabitEthernet2/1/0
connectivity from a directly connected host 10.10.10.1/27
Which YANG data model set must the engineer choose?
A)
B)
C)
D)
Select an option, then click Submit answer.
Option A
Option B
Option C
Option D
A network engineer must optimize a campus OSPF deployment Currently each time a type 1 or type 2 LSA is generated within an area, the OSPF process must recompute the entire SPT Which solution improves the recomputation process?
Select an option, then click Submit answer.
iSPF
BFD
SPF
PRC
This free practice test covers the Designing Cisco Enterprise Networks (ENSLD) (300-420) exam from Cisco. The 15 questions are a free sample of the full Study4Pass practice set of 325 questions, so you can check your level before you commit to the real exam. The free sample includes 7 single-answer, 6 multiple-answer and 2 drag-and-drop questions — the same mix of formats you will meet in the full set. Questions are spread across the areas that matter most on the real exam: Designing Cisco Enterprise Networks, Designing Cisco Data Center Infrastructure, Designing Cisco Network Services and Designing Cisco Security Solutions. The Cisco 300-420 exam is a certification exam that tests a candidate's knowledge and skills related to designing and deploying Cisco Enterprise Networks.
The target audience for the Cisco 300-420 exam are network professionals who have experience in planning, configuring, and verifying Cisco Enterprise Wireless networks. The Cisco 300-420 exam requires a candidate to have knowledge of the following topics before attempting the exam: • Designing Cisco Enterprise Networks • Designing Cisco Data Center Infrastructure •…
Treat this sample as a diagnostic. Answer honestly, check the explanation after every question, and note which topics feel shaky. A short, focused review of those topics is worth more than re-reading everything — and the full set lets you drill them topic by topic.
A good way to use this page: take the whole sample in one sitting, then go back over every explanation with fresh eyes. Mark the topics that felt uncertain, not just the ones you got wrong — uncertain answers are unmarked risk on the real exam. One or two focused passes like this usually move a score more than days of passive reading.
Inside the full 300-420 practice set:
Answer a question, then check the result to see the correct answer and the explanation behind it. Work at your own pace — there is no timer and no signup. Stuck on a concept? This is an AI-Enabled practice test: use Ask AI on any question and get the underlying concept explained in plain words, so you learn the reasoning instead of memorizing answers. Ready for more? The full 325-question set adds a timed Exam Simulation mode, topic training for your weak areas, and a flagged-question review, so you can practise the way the real exam feels.
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325 questions. The 15 free questions above are a sample of that full set, in the same style and topic balance.
Yes — every question shows the correct answer with an explanation, and Ask AI can explain the concept behind a question in plain words if you want to go deeper.
No. This is a practice test: the questions are written to mirror the real 300-420 exam’s topics and difficulty, not copied from it.
