10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The JNCIP-SP exam has 65 questions and runs 1 hours 30 minutes.
These 10 free JNCIP-SP questions are organized by exam domain, so you can see how each part of the Juniper Networks Certified Professional, Service Provider Routing and Switching (JNCIP-SP) blueprint is tested. Reveal the answer and explanation under each question.
During an OSPF design review, an engineer needs to connect an area that cannot have a direct physical connection to the backbone area. Which OSPF feature addresses this requirement?
Correct answer: A - Virtual link
In an IS-IS network, an administrator wants a metric system that supports larger values than traditional narrow metrics. Which feature should be enabled?
Correct answer: A - Wide metrics
A service provider has two BGP routes to the same destination. Route A has a higher local preference than Route B, while Route B has a shorter AS path. Assuming other BGP attributes are equal, which route is selected?
Correct answer: B - Route A because local preference is evaluated before AS path length
A BGP router receives routes from many peers and the administrator wants to reduce the need for a full mesh of internal BGP sessions. Which design provides this scaling improvement?
Correct answer: A - Route reflection
A Junos device classifies voice packets into a forwarding class and assigns them a high transmission priority. Which CoS component determines how packets are placed into that forwarding class?
Correct answer: C - Classifier
A multicast receiver subscribes to a specific multicast source rather than any sender using a group address. Which multicast model is being used?
Correct answer: B - Source-specific multicast
A multicast-enabled router receives a multicast packet. Before accepting the packet on an interface, it checks whether the packet arrived through the expected path toward the source. What mechanism is being performed?
Correct answer: B - Reverse-path forwarding validation
An enterprise customer connected to a provider Layer 3 VPN requires two customer sites to exchange routes, but the provider must prevent overlapping customer IPv4 addresses from colliding. Which technology provides the required separation?
Correct answer: B - Route distinguishers
A customer VPN requires a topology where multiple remote sites connect through a central hub site rather than maintaining direct site-to-site connectivity. Which Layer 3 VPN design matches this requirement?
Correct answer: B - Hub-and-spoke topology
A provider is troubleshooting an EVPN deployment. MAC routes are being learned locally but are not distributed between provider edge devices. Which control-plane function should be investigated first?
Correct answer: A - BGP EVPN route distribution
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