Cisco 350-501 Certification Exam Sample Questions and Answers

CCNP Service Provider Dumps, 350-501 Dumps, Cisco SPCOR PDF, 350-501 PDF, CCNP Service Provider VCE, Cisco CCNP Service Provider Questions PDF, Cisco Exam VCE, Cisco 350-501 VCE, CCNP Service Provider Cheat SheetBefore you write the Cisco CCNP Service Provider (350-501) certification exam, you may have certain doubts in your mind regarding the pattern of the test, the types of questions asked in it, the difficulty level of the questions and time required to complete the questions. These Cisco Certified Specialist Service Provider Core (SPCOR) sample questions and demo exam help you in removing these doubts and prepare you to take the test.

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Cisco 350-501 (SPCOR) Sample Questions:

01. Solvent Telecom is migrating core monitoring from periodic SNMP polling to model-driven streaming telemetry. An architect must justify the change and correctly describe how a telemetry session is initiated.
Which two statements are accurate?
(Choose two.)
a) Streaming telemetry pushes data as events or on a fixed cadence and avoids the per-object polling overhead of SNMP.
b) In a dial-in model the device connects outward to the collector without any subscription being established.
c) Streaming telemetry still requires the collector to poll each sensor path individually on a fixed timer.
d) Streaming telemetry can only carry the objects that existing SNMP MIBs already define on the device.
e) In dial-out the device opens the connection to the collector; in dial-in the collector connects to subscribe.
 
02. An engineer at Meridian Transit Networks is building a QoS configuration on a provider-edge router using the Modular QoS CLI (MQC) framework. They have defined the traffic categories and the per-category treatment, and now need the treatment to actually act on packets entering a subscriber-facing interface.
Which MQC construct binds the defined policy to that interface in a specific direction?
a) The class-map definition
b) The service-policy statement
c) The route-policy statement
d) The policy-map definition
 
03. Ferro Grid Telecom runs IS-IS with Segment Routing in its core and enables TI-LFA for fast reroute. A design engineer challenges whether the pre-computed backup will actually match where traffic ends up after the IGP fully reconverges.
What distinguishes TI-LFA from classic LFA in guaranteeing the repair path?
a) TI-LFA still requires every neighbor to already be a loop-free alternate, the same coverage limitation as classic LFA
b) TI-LFA protects only against link failures and cannot express a repair path around a failed node in the ring
c) TI-LFA relies on RSVP-TE bypass tunnels signaled in advance toward each protected destination prefix
d) TI-LFA uses a segment list to steer traffic along the post-convergence path even when no loop-free neighbor exists
 
04. Cascade Broadband deploys Unicast RPF on the customer-facing interfaces of its aggregation routers to reject spoofed source addresses. Some multihomed business customers reach Cascade over two diverse uplinks, and return traffic for a given source may legitimately arrive on a different interface than the one the forward route points to.
Which uRPF mode should be used on these interfaces to avoid dropping legitimate asymmetrically-routed traffic?
a) Loose mode, which only requires that a route to the source exist in the FIB via any interface
b) Disabling uRPF entirely and relying solely on a static infrastructure ACL for anti-spoofing
c) Strict mode with an allow-default option, which accepts sources matched only by the default route
d) Strict mode, which requires the source to be reachable out the exact interface the packet arrived on
 
05. On a heavily utilized core link, Tamarack Transit observes that all TCP flows in the bulk-data class synchronize their windows and repeatedly back off together whenever the output queue overflows and tail-drops occur, producing sawtooth throughput and poor link utilization. The team wants a congestion-avoidance mechanism that begins dropping packets probabilistically as the queue depth grows, before it is completely full.
Which mechanism directly addresses this global-synchronization problem?
a) Increasing the interface's tail-drop queue limit so the output queue rarely fills
b) A single-rate token-bucket policer, dropping excess at the class's average rate on ingress
c) Weighted Random Early Detection, dropping packets probabilistically as the queue fills
d) Low-Latency Queuing, placing the bulk-data class into a strict-priority hardware queue
 
06. Anticipating a control-plane-targeted flood, an operator at Ironwood Networks wants their IOS XR core routers to rate-limit and filter traffic destined to the router's own processor — protocol packets such as BGP, OSPF, and management sessions — so a burst of exception traffic cannot starve legitimate control processing.
Which mechanism provides this control-plane protection?
a) Local Packet Transport Services (LPTS), the IOS XR control-plane policer
b) Unicast RPF in strict mode applied on every core-facing interface
c) Remote-triggered black hole routing advertised into the core IGP
d) An infrastructure ACL, applied outbound on the core-facing interfaces
 
07. An engineer at Meridian Backbone (AS 64511) manages an IOS XR provider-edge router through NETCONF over SSH. Before activating a new VRF import policy, the engineer wants to stage the entire configuration change, review it, and only then make it live on the forwarding device, ensuring no partial change ever touches the running configuration.
Which NETCONF datastore behavior supports this workflow?
a) Edits are sent as telemetry subscriptions that the device applies to running as capacity allows.
b) Edits are written to the startup datastore and activate only after the next device reload.
c) Edits are written to the candidate datastore and applied to running only on an explicit commit.
d) Edits are written directly to the running datastore and take effect immediately as each element arrives.
 
08. On a congested uplink at Solstice Carrier, an engineer must smooth a bursty customer aggregate down to its contracted rate so it does not overrun a downstream low-speed link, while losing as few packets as possible. A colleague suggests policing instead, but the goal is to delay excess rather than discard it.
Which statement correctly distinguishes shaping from policing for this requirement?
a) Both shaping and policing buffer excess identically and differ only in the direction they are applied
b) Shaping buffers excess and releases it later while policing drops or re-marks it immediately
c) Shaping applies only to marked control-plane traffic while policing applies to all data-plane traffic
d) Shaping re-marks excess traffic to a lower DSCP while policing simply queues it for later transmission
 
09. Halcyon Transit needs interface counters from its core routers many times per second, delivered as an efficient binary stream that the device pushes to a collector as values change, rather than the collector requesting each value.
Which interface is purpose-built for this high-frequency streaming role?
a) Syslog, the event facility that emits text messages only when a monitored threshold is crossed.
b) RESTCONF, the HTTP interface that exposes YANG data through synchronous request and response calls.
c) SNMP, the manager-driven protocol that issues periodic GET requests to each object on a timer.
d) gNMI, the gRPC-based interface built for subscription-driven streaming telemetry with binary encoding.
 
10. A capacity-planning group at Ironwood Networks needs to know which source and destination address pairs, protocols, and ports account for the most traffic across the core, derived from the real traffic the routers forward.
Which technology is designed to provide this flow-level visibility?
a) NetFlow/IPFIX, which records per-flow metadata and exports the flow records to a collector.
b) CoPP, which rate-limits control-plane traffic punted to the router to protect its processor.
c) IP SLA, which measures path delay and reachability using its own synthetic probe traffic.
d) Interface-counter telemetry, which reports aggregate throughput but not per-flow composition.

Solutions:

Question: 01

Answer: a, e

Question: 02

Answer: b

Question: 03

Answer: d

Question: 04

Answer: a

Question: 05

Answer: c

Question: 06

Answer: a

Question: 07

Answer: c

Question: 08

Answer: b

Question: 09

Answer: d

Question: 10

Answer: a

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