Cisco 400-201 Free Practice Questions

Q1. A Service Provider is offering VoIP services and a service level agreement to customers. Which configuration provides validation to customers that the service level agreement has been honored? 

A. ip sla 999 udp-jitter 209.165.200.225 1000 codec g729a tos 160 ip sla schedule 999 life forever start-time now 

B. ip sla 999 icmp-jitter 209.165.200.225 tos 160 ip sla schedule 999 life forever start-time now 

C. ip sla 999 icmp-jitter 209.165.200.225 tag VoIP-SLA ip sla schedule 999 life forever start-time now 

D. ip sla 999 udp-jitter 209.165.200.225 1000 codec g729a tag VoIP-SLA 

ip sla schedule 999 life forever start-time now 

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Q2. A network engineer wants to decrease the convergence time of a network that is running integrated IS-IS as an IGP, at the expense of bandwidth and CPU usage. Which two configuration tasks achieve this goal? (Choose two.) 

A. Configure the hold time to be 1 second. 

B. Configure the hello interval to be minimal. 

C. Ensure that hello-padding is disabled. 

D. Ensure that the hello multiplier is set to 3. 

E. Configure the hello multiplier to be 3. 

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Q3. The following congestion avoidance configuration has been applied on an outgoing interface: 

Which is the result of the egress packets marked as DSCP AF32 when the average queue depth is 40? 

A. It will be dropped with a random rate less than the one defined by MPD. 

B. It will be tail dropped. 

C. It will be dropped with a rate of 1 packet out of 30. 

D. It will be dropped with a rate of 1 packet out of 20. 

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Q4. Refer to the exhibit. R1 and R2 are multicast routers running PIM over Serial1/0. The PIM adjacency on R1 is not forming with the given configuration. What command can be entered on R1 to resolve the issue? 

A. no access-list 100 deny 103 any any 

B. no access-list 100 deny udp any anyeq 103 

C. no access-list 100 deny ip any host 224.0.0.1 

D. no access-list 100 deny ip any host 224.0.0.2 

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Q5. In a frame, the MPLS label is imposed where? 

A. Before the layer 2 header 

B. Within the Layer 3 header 

C. After the Layer3 header and before Layer2 header 

D. After the Layer2 header and before Layer3 header 

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Q6. What BGP feature improves on DDOS mitigation by allowing instructions that are more granular and allow for source address, destination, address, L4 details, and packet specifics to be analyzed? 

A. RCMD 

B. RTBH 

C. BGP Flowspec 

D. BGPSec 

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Q7. Which are the two purposes of the MPLS label value 1? (Choose two.) 

A. it is used for MPLS OAM packets. 

B. it indicates an implicit null label. 

C. it is used for VPNv6 packets. 

D. it is used to carry the QoS value in the label stack. 

E. it indicates an explicit null label. 

F. it indicates a router alert label. 

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Q8. What are two advantages of Cisco IOS XR Software over Cisco IOS Software? (Choose two.) 

A. a configuration that is grouped by interface 

B. a configuration that is grouped by process 

C. one-stage configuration 

D. a monolithic OS 

E. a two-stage configuration 

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Q9. How many bits are expressed by";:" in the address 2D01:DB::C:B7BA:130B? 

A. 16 bits 

B. 32 bits 

C. 40 bits 

D. 44 bits 

E. 48 bits 

F. 52 bits 

G. 56 bits 

H. 64 bits 

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Q10. An R1 router requires an equal load balancing to reach the prefix 192.168.0.0/16 over two exit points: through R2 and R3 routers. Which two options must be configured on the R1 router to achieve this goal? (Choose two.) 

A. The BGP maximum path feature must be configured on R1. 

B. The BGP PIC core must be enabled on R1 

C. Weight, local-pref, MED, as-path length, origin, and the BGP next-hop IGP cost must be the same for the R2 and R3 IBGP updates to R1. 

D. The BGP Link Bandwidth feature must be applied on R1. 

E. BGP extended community exchange must be enabled between IBGP neighbors. 

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Q11. Which are the three header fields that affect how Equal-Cost Multipath hashes traffic flow into interface groups? (Choose three.) 

A. source MAC address 

B. source port 

C. source IP address 

D. destination IP address 

E. IP protocol ID 

F. destination MAC address 

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Q12. A network engineer is designing the BGP architecture with a requirement of preventing the AS 65001 from becoming a Transit AS path, using the following configuration: 

router bgp 65000 

neighbor 10.0.0.1 route-map BGP-ROUTE-POLICY in 

The goal is to prevent routes learned from 10.0.0.1 from being advertised to any other eBGP peering in the AS 65000. What command should be used within the route map to achieve this goal while keeping existing route policies in place? 

A. set community no-export additive 

B. set community no-advertise 

C. set community no-advertise additive 

D. set community no-export 

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Q13. Which are the four main functions of the Cisco IOS XR System Manager? (Choose four) 

A. performs system monitoring 

B. is the main IOS XR component for device drivers and software installation management 

C. starts, restarts, and terminates processes in response to user configuration or RP failover 

D. is responsible for the message-passing "bus" for interprocess communication 

E. acts as a central repository for all process-related information 

F. performs health checks 

G. initiates disaster recovery based on the process health 

H. invokes a dumper to collect a core dump when a process terminates abnormally 

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Q14. A network engineer is responsible for implementing a solution with Cisco IOS XR Software that ensures continuous forwarding during a control plane failure. Which two technologies should the engineer consider? (Choose two.) 

A. IP FRR 

B. NSR 

C. graceful restart 

D. BFD 

E. TE FRR 

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Q15. Which is the main characteristic of LTE architecture compared to other mobile architectures? 

A. Provides supports to deploy Layer 3 MPLS VPN model, where other mobile architectures do not support. 

B. Offers node redundancy with the static route configured on the IP NodeB using the HSRP/VRRP virtual ip address. 

C. Provides a simpler, less hierarchical model with the capability of simplistically distributing the core gateways. 

D. Introduces a hierarchical model with connection-oriented service requirements and one-to-one relationships. 

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