400-201 | Cisco 400-201 Braindumps 2021

NEW QUESTION 1
Which of the following is a correct arrangement of APS Action Requests in order of priority, with highest priority first?

• A. Lookout of Protection, Forced Switch, SD, Manual Switch
• B. SD, Lockout of Protection, Forced Switch, Manual Switch
• C. Lockout of Protection, Manual Switch, SD, Forced Switch
• D. Manual Switch, Forced Switch, Lockout of Protection, SD
• E. Manual Switch, Lockout of Protection, Forced Switch, SD

Answer: A

Explanation: 1.1. Packet over SONET
Table 1 shows the priority requests from the highest (lockout) to the lowest (manual). Table 1 APS Priority Request
Priority Priority Request 1 Lockout of protect port 2 Forced switch
3 Signal failure—low priority
4 Signal degradation—low priority 5 Manual switch

NEW QUESTION 2
Which Cisco IOS XR Virtualization technology provides full isolation between virtualized routing instances for extra control plane resources?

• A. HVR
• B. SVR
• C. SDR
• D. DRP

Answer: C

NEW QUESTION 3
DRAG DROP
Drag and Drop the SNMP message type on the left onto the corresponding functionality on the right?

Answer:

Explanation:

NEW QUESTION 4
Which option describes a benefits of IPv6 VPN Provider Edge?

• A. Provider support for intra-AS and CSC scenarios
• B. Uses separate signaling plane, which provides more security than IPv4
• C. BGP is the preferred routing protocol for connecting two SPs.
• D. No requirement for a separate signaling plane

Answer: D

NEW QUESTION 5
Which two VPN Inter-AS options require the no bgp default route-target filter command? (Choose two.)

• A. MPLS VPN Inter-AS with ASBRs exchanging VPN-IPv4 addresses
• B. MPLS VPN Inter-AS with ASBRs exchanging IPv4 routes and MPLS labels
• C. MPLS VPN Inter-AS Option AB
• D. MPLS VPN Carrier Supporting Carrier using LDP and IGP
• E. MPLS VPN Carrier Supporting Carrier with BGP
• F. MPLS VPN eBGP multipath support for CSC

Answer: AC

NEW QUESTION 6
An engineer is looking into a solution for two customers that are using the network prefix 10.10.1.0/24. The network engineer wants the network prefix to remain the same for both customers, while maintaining unique network information for each. Which approach can be used to achieve this requirement?

• A. Assign a unique RD per customer.
• B. Assign a unique RT per customer.
• C. Assign a unique SOO per customer.
• D. Assign a unique TE per customer.

Answer: A

NEW QUESTION 7
DRAG DROP
Drag and drop the service provider MPLS core component on the right onto the matching functionality on the right

Answer:

Explanation:

NEW QUESTION 8
Refer to the exhibit. A service provider is providing Layer 2 VPN between CE1 and CE2 via a pseudowire created between R1 and R5. What is the label stack of the packets leaving R6 going toward R5 for traffic flowing from CE1 to CE2?

• A. Single label of 17
• B. 24(top) and 0 (Bottom)
• C. Single label of 24
• D. 3 (top) and 24 (bottom)
• E. 0 (top) and 24 (bottom)
• F. 0 (top) and 17 (bottom)
• G. 3 (top) and 24 (bottom)
• H. 17 (top) and 0 (bottom)

Answer: F

NEW QUESTION 9
Which statement about ATM AAL5 over MPLS is true?

• A. It supports ATM signaling.
• B. It supports traffic shaping of packets in MPLS to the ATM path.
• C. It supports ATM switched virtual circuits
• D. It supports fragmentation and reassembly.
• E. It supports AAL5 SDU switching.

Answer: E

Explanation: ReferencE.
http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fsaal22.html#wp1015337 Restrictions
The following restriction apply to AAL5 over MPLS:
•The AAL5 over MPLS feature supports only AAL5 SDU switching.
•The following services are not supported with the AAL5 over MPLS feature:
–ATM switched virtual circuits (SVCs)
–ATM signaling
–Fragmentation and reassembly
–Traffic shaping of packets in the MPLS-to-ATM path
•The instructions for configuring AAL5 over MPLS in this feature module apply only to the Cisco 12000 series router for 12.0(21)ST. Avoid using these instructions for any other platform or release.

NEW QUESTION 10
A network engineer is trying to optimize convergence.
What action should be taken to overcome EBGP frequent session loss due to interface flapping between two different AS routers?

• A. Tune the BGP session time-out.
• B. Disable bgp fast-external-fallover.
• C. Enable bgp fast-external fallover.
• D. Use disable-connected-check.
• E. Enable neighbor fall-over.

Answer: B

NEW QUESTION 11
A network engineer is redistributing BGP prefixes into RIP. These prefixes are unreachable in the RIP network. Which the two actions could resolve the issue based on this scenario? (Choose two.)

• A. Enable BGP synchronization.
• B. Enable BGP AS-override.
• C. Rewrite RIP hop count for the redistributed prefixes.
• D. Enable internal BGP redistribution.
• E. Rewrite BGP next hop.
• F. Apply BGP next-hop-self.

Answer: CD

NEW QUESTION 12
Two OSPF neighbor routers are stuck in the EXSTART state. After a while, the neighborship goes down. A network engineer is debugging the issue when both routers show the OSPF log message "too many retransmissions." What is the possible root cause?

• A. OSPF area mismatch
• B. OSPF hello-interval mismatch
• C. interface MTU mismatch
• D. interface network type mismatch

Answer: C

NEW QUESTION 13
A network engineer is responsible for provisioning LDP and IGP over the IP core network to maintain the MPLS functionality as a day-to-day task. The IP engineer is looking for
automation opportunities. Which feature allows the LDP protocol to be automatically enabled on interfaces that run IGP on the routers?

• A. MPLS LDP autoconfiguration
• B. MPLS LDP discovery
• C. MPLS LDP-IGP synchronization
• D. MPLS LDP session protection

Answer: A

NEW QUESTION 14
DRAG DROP

Answer:

Explanation:

New Questions

NEW QUESTION 15
Which option is the benefit of per-link LFA over per-prefix LFA?

• A. It has a greater applicability
• B. It provides greater protection coverage
• C. It is simpler
• D. It enables better bandwidth utilization

Answer: C

NEW QUESTION 16

Refer to the exhibit what is the status of the L2 tunnel between PE1,PE2 and the layer 2 switches ?

• A. The layer 2 tunnel is down due to the ACL is applied on the PE2 interface
• B. The layer 2 tunnel is up and SW1 become the root bridge for VLAN 10
• C. The layer 2 tunnel is down due to the MTU mismatch between SW1 and SW2
• D. The layer 2 tunnel is up but no BPDUs are exchange unless an extra configuration is applied

Answer: B