Cisco 400-201 Dumps 2021

NEW QUESTION 1
Which of the following processes are likely to be found in a microkernel?

• A. Memory management
• B. Lightweight messaging
• C. Process scheduling
• D. Hardware abstraction
• E. Host stack
• F. All of the above

Answer: F

NEW QUESTION 2
What are the four key design requirements for mobile IP backhaul? (Choose four)

• A. X2 interface turning point
• B. bandwidth
• C. Layer 2 Tunneling
• D. native IPv6 support
• E. DiffServQoS
• F. MPLS-enabled interface
• G. network timing distribution and recovery
• H. mandatory Layer 3 access up to a cell site

Answer: CDGH

NEW QUESTION 3
Which two of the following are designated fields for MAC tunneling protocol (802.1ah)?

• A. Control Word
• B. Tunnel Label
• C. 802.1q VLAN TAG
• D. ISL
• E. Service Ethertype
• F. PseudoLAN TAG

Answer: EF

NEW QUESTION 4
Refer to the exhibit. All links have same bandwidth configured AS 4, AS 4 and AS 7 run OSPF as IGP using default metric values. Which two statements are correct in regards to MSDP SA messages received by R5 located in AS 7? ( Choose two)

• A. All MSDP SA messages from R1 and R2 via R4 will be dropped
• B. All MSDP SA messages from R1 and R2 via R3 will be accepted
• C. All MSDP SA messages from R1 and R2 via R3 will be dropped
• D. All MSDP SA messages from R1 and R2 via R3 will be dropped and all MSDP SA messages from R2 via R4 will be dropped
• E. All MSDP SA messages from R1 and R2 via R4 will be accepted
• F. All MSDP SA messages from R1 via R3 will be accepted and all MSDP SA messages from R2 Via R4 will be accepted

Answer: AB

NEW QUESTION 5

Refer to the exhibit. A network engineer has a requirement to enable MPLS TE tunnels on the network to be L3VPN customers. Which MPLS TE feature allow the network engineer to configure MPLS TE LSPs by using a few CLI commands?

• A. AutoTunnel Mesh Groups on all P and PE routers
• B. AutoTunnel Primary and Backup on all PE routers
• C. AutoTunnel Primary and Backup on all P and PE routers
• D. AutoTunnel Mesh Groups on all PE routers

Answer: D

NEW QUESTION 6
DRAG DROP

Answer:

Explanation:

NEW QUESTION 7

Refer to the exhibit. The topology is an inter-AS VPN that is using Option B. Given the traceroute output from CE1 to CE2 .Which three options are VPN labels? (Choose two)

• A. Label 17 for LSP 1
• B. Label 21 for LSP 1
• C. Label 24 for LSP 1
• D. Label 17 for LSP 2
• E. Label 20 for LSP 2
• F. Label 21 for LSP 2
• G. Label 17 for LSP 3
• H. Label 20 for LSP 3

Answer: BCH

NEW QUESTION 8
An operator enabled BFD in echo mode and now CPU is high. Which option is the most likely solution to the problem?

• A. Disable ICMP redirects on an interface
• B. Change from echo mode to asynchronous mode
• C. Disable BFD altogether
• D. Reduce the BFD packet rate
• E. Reduce the BFD control plane packet rate

Answer: A

NEW QUESTION 9

Refer to the exhibit. How can IPv4 hosts located on the IPv4 Internet access the IPv6-only servers located in a small IPv6-only net

• A. By using NAT 444
• B. By using stateless NAT64 with static v6v4 mapping
• C. By using statefull NAT64
• D. It is not possible IPv6 translation with IPv4 Internet hosts
• E. By using stateful NAT64 with static v6v4 mappings

Answer: E

NEW QUESTION 10
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 11
Which Inter-AS option allows a service provider to provision AToM along with L3VPN provisioning?

• 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. back-to-back VRFs

Answer: B

NEW QUESTION 12
A network operator is designing a BGP traffic engineering policy that uses the MED attribute to influence outbound traffic. This policy prefers routes that are received from upstream peers with a lower MED. All other higher preference BGP attributes values are equal. Which Cisco IOS BGP command enables this functionality?

• A. Bgp always-compare-med
• B. Bgp bestpath med-confed
• C. Bgp deterministic-med
• D. Bgp bestpath med missing-as-worst

Answer: A

NEW QUESTION 13
DRAG DROP

Answer:

Explanation:

NEW QUESTION 14
In which two ways does the BGP graceful restart capability preserve prefix information during a restart? (Choose two.)

• A. The peer router sends an end -of RIB message to the restarting router
• B. The peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing table
• C. The restarting router waits to receive updates from the neighboring routers.
• D. The restarting router does not remove any stale prefixes after the timer for stale entries exTs.
• E. The restarting router removes any stale prefixes after the timer for stale entries expires

Answer: CE

NEW QUESTION 15
Which four of these statements are restrictions for Frame Relay PVC bundles with QoS support for IP and MPLS? (Choose four)

• A. A PVC bundle will not come up unless all the precedence, DSCP, and EXP levels are configured in the bundle.
• B. A PVC bundle can perform precedence and DSCP matching at the same time
• C. A PVC bundle may contain no more than sixteen PVCs
• D. A PVC can be in only one PVC bundle
• E. A PVC bundle cannot perform precedence and DSCP matching at the same time.
• F. A PVC bundle may contain no more than eight PVCs.

Answer: ADEF

Explanation: Reference:
http://www.cisco.com/en/US/docs/ios/12_2t/12_2t13/feature/guide/ft_frbnd.html#wp102717 5
Restrictions for Frame Relay PVC Bundles with QoS Support for IP and MPLS
• A PVC can be a part of one and only one PVC bundle.
• A PVC bundle may contain no more than eight PVCs.
• A PVC that is a bundle member cannot be used in any other capacity, For example a PVC bundle member cannot be configured in a map statement.
• A PVC bundle cannot perform precedence and DSCP matching at the same time. If the wrong matching scheme is configured, unpredictable behavior will result.
• A PVC bundle will not come up unless all the precedence, DSCP, or EXP levels are
configured in the bundle.
• Voice over Frame Relay (VoFR) is not supported on PVC-bundle members.
• Fast switching over Frame Relay PVC bundles is not supported.

NEW QUESTION 16
Which four statements about the Carrier Supporting Carrier (CSC) feature are true? (Choose four.)

• A. MPLS is required between the PE and CE routers that connect the backbone carrier to the customer carrier.
• B. The backbone carrier must enable the PE router to check that the packets it receives from the CE router contain only the labels that the PE router advertised to the CE router.
• C. Every packet that crosses the backbone carrier must be encapsulated so that the packet includes MPLS labels
• D. AII PE routers that link the backbone carrier to the customer carrier must run Route Target Rewrite.
• E. A routing protocol is required between the PE and CE routers that connect the backbone carrier to the customer carrie
• F. The routing protocol enables the customer carrier to exchange IGP routing information with the backbone carrier.

Answer: ABCE

NEW QUESTION 17

Refer to the exhibit. The prefix 10.1.1.64/28 should be advertised to the PE router, yet the prefix is not being received by the PE. Which configuration should be applied on CE in order to fix this issue?

• A. ip prefix-list ROUTES_TO_SP seq 1 permit 10.1.1.64/28
• B. router bgp 65000no network 10.1.1.64 mask 255.255.255.240network 10.1.1.128 mask 255.255.255.128
• C. ip prefix-list ROUTES_TO_SP permit 10.1.1.64/28
• D. router bgp 65000no network 10.1.1.64 mask 255.255.255.240network 10.1.1.0 mask 255.255.255.0

Answer: A