Cisco 400-201 Exam Questions and Answers 2021

NEW QUESTION 1
A client has a Layer 2 handoff with a service provider using HSRP. This client has a requirement to optimize the HSRP configuration in it reacts when an indirect failure occurs. Which feature interacts with HSRP to achieve this goal?

• A. IP SLA
• B. MPLS node protection
• C. IP Fast Reroute
• D. Anycast

Answer: AC

NEW QUESTION 2
Which three are advantages of SONET? (Choose three)

• A. Allows the transportation of all forms of traffic
• B. Multiplexing is easy
• C. Clocks do not need to be synchronized
• D. Reduces network complexity and cost
• E. Padding is not necessary and not permitted

Answer: ABD

Explanation: SONET Advantages
The big advantage of SONET is that it was designed to provide the following functions needed in networking at that time:
Single-step multiplexing
Access to low-level signals directly
Carry existing DS1, DS3, ATM, and packet traffic Synchronous timing to eliminate bit stuffing
Overhead room for acceptable network management information Allow transmission of data at higher speeds (50 Mbps+)

NEW QUESTION 3
Which mode does PPP interface use for peer authentication?

• A. in-band
• B. semi-in-band
• C. out-band
• D. semi-out-band
• E. in-band and out-band

Answer: C

NEW QUESTION 4
Which statement about the Link Control Protocol is true?

• A. LCP is used for basic PPP link setup and operation.
• B. LCP is used for PPP CHAP authentication.
• C. LCP is used for PPP over ATM setup.
• D. LCP is used for PPP over Ethernet setup.
• E. LCP is used for PPP over Frame Relay setup.

Answer: A

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
ISP_X has IPv4 only enabled in the MPLS backbone. ISP_X must provide IPv6 services to its customers including IPv6 Internet access. Which IPv6 transition mechanism allows ISP_X to provide IPv6 connected by leveraging the existing MPLS IPv4 core network?

• A. 6to4 tunnels
• B. NAT444
• C. 6PE
• D. NAT64
• E. 6RD
• F. DS Lite

Answer: A

NEW QUESTION 7
Operations team must deploy Inter-Chassis Communication Protocol to provide high availability services to dual-homed CE nodes. On which nodes must the Inter-Chassis Communication Protocol be configured to meet this requirement?

• A. P nodes
• B. Metro Ethernet switches nodes
• C. CE nodes
• D. PE nodes

Answer: D

NEW QUESTION 8
A NOC engineer is troubleshooting an issue on a customer’s server that is connected to a switch port in the data center. The engineer has a packet analyzer that is connected to a test port in the NOC. A core network exists between the NOC and the data center
Which two configuration steps should the NOC engineer apply for the port in the NOC and the customer’s switch port in the data center? (Choose Two)

• A. Configure ERSPAN between the NOC test port and customer’s switch port
• B. Enable an MPLS pseusdowire that is destined to the NOC and used by the mirrored customer traffic to cross network
• C. Enable GRE encapsulation that is destined to the NOC and supply by the mirrored customer traffic to cross the network
• D. Enable an MPLS TE tunnel that is destined to the NOC and used by the mirrored customer traffic to cross the core network
• E. Configure RSPAN between the NOC test port and customer’s switch port

Answer: AC

NEW QUESTION 9
Referring to the exhibit, if RTP header compression is used on the link, the header's overhead on the voice packet will be reduced by what percent?

• A. from 50% to 25%
• B. from 50% to 20%
• C. from 70% to 20%
• D. from 70% to 33%

Answer: D

NEW QUESTION 10
Typical ADSL broadband Internet access requires a username and password to be entered on end-user PC connected to the ADSL modem in order for the end user to gain access to the Internet. If a Cisco ADSL router is used instead of an ADSL modem, what functionality is required on the Cisco ADSL router so the end-user connected to the Cisco ADSL router can access the Internet without entering a username and password?

• A. Route Bridge Encapsulation (RBE)
• B. PPPoA
• C. Integrated Routing and Bridging (IRB)
• D. AAA
• E. PPPoE client

Answer: E

NEW QUESTION 11
Refer to the exhibit.
***MISSING EXHIBIT***
Which two statements are true? ( Choose two)

• A. This router has the ip multicast longest-match command applied
• B. This router is forwarding the multicast traffic to the Ethernet 0/0 interface
• C. This router runs multicast with default multicast commands
• D. This router cannot have MP-BGP safi 2 address-family configured
• E. This router uses route 10.1.1.0/24 toward the source to fulfill the multicast RPF requirements

Answer: AE

NEW QUESTION 12
Refer to the exhibit.

Which action can fix the problem with the port channel?

• A. Unify interface descriptions on both interfaces.
• B. Unify load-interval on both interfaces.
• C. Add duplex full on interface F0/13.
• D. Add VLAN 100 to VLAN allowed list on Fa0/13.

Answer: D

NEW QUESTION 13
An operation engineer from AS 2000 must deploy this inbound routing policy:
*Based on RFC 1998, modify the local-preference value for prefixes containing BGP community values 2000:90 and 2000:110
*Strip any BGP community of the BGP prefixes received from customers that are in the range between 2000:1 and 2000:2000. Any other BGP community values must not be removed
*Apply 2000:1003 BGP community Value, which indicates that the BGP prefix is learned form a customer
Which configuration accomplishes this BGP routing policy?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: C

NEW QUESTION 14
Refer to the exhibit.

Which IPv6 deployment feature is displayed?

• A. MPLS 6PE
• B. MPLS 6VPE
• C. 6 to 4 Replay Service
• D. native IPv6 over MPLS
• E. 6 to 4 Tunnel

Answer: A

NEW QUESTION 15
Which protocol supports exporting of fields extracted from BAR?

• A. IPFIX
• B. SNMP
• C. Sysolg
• D. NetFlow
• E. RSPAN

Answer: D

NEW QUESTION 16
Which command will display the MPLS label binding for IP prefix 1.1.1.0 on the router?

• A. All of the above.
• B. show tag-switching tdp binding 1.1.1.0/24
• C. show tag-switching tdp bindings neighbor 1.1.1.0
• D. A and B both will show the binding.
• E. show tag-switching interface e0/0

Answer: B

NEW QUESTION 17
You have a Cisco 7600 Series Router with two route processors installed and with SSO enabled. Which three conditions must apply? (Choose three.)

• A. The route processors must be running the same version of the Cisco IOS Software.
• B. The route processors must have the same amount of DRAM.
• C. The route processors must be preloaded with configurations.
• D. The route processors must load share responsibilities between them.
• E. The route processors must have the same configuration register values.
• F. A switchover between the two route processors does not result in the reset of any line cards.

Answer: AEF

NEW QUESTION 18
In an OSPF domain, four routers have OSPF neighborship over a broadcast domain. What is the expected state after running the show ip OSPF neighbor command on the OSPF designated router?

• A. one FULL state, two 2WAY states
• B. two FULL states, one 2WAY state
• C. three FULL states
• D. three 2WAY states

Answer: C

NEW QUESTION 19

Refer to the exhibit. IPTV video clients are connected to R6. Unicast and multicast traffic flows from R1 to R6. The OSPF cost of the R1-R2-R3-R6 path is lower than the R1-R5-R4- R3-R6 path
To enable load sharing and fast reroute, the design team decided to implement MPLS TE tunnels between R1 and R3 using the forwarding adjacency feature. After the MPLS TE tunnels are deployed, the multicast traffic stops working
While trouble shooting the issue, the operations engineer noticed that the OSPF route to the multicast source is learned via the MPLS TE tunnel, which causes the RPF check to fail. Which two solutions can prevent the multicast traffic from being affected by the RPF check failure due to the MPLS TE tunnel deployment? (Choose two)

• A. Replace forwarding adjacency by autoroute announce and enable the multicast-intact feature
• B. Enable PIM on the MPLS TE tunnel on both headend routers
• C. Enable the Multitopology routing feature
• D. Enable a new routing protocol, such as another OSPF process, on the core-facing links
• E. create a static mroute on R3 with the RPF pointing to the MPLS TE tunnel

Answer: AC