400-201 | Cisco 400-201 Study Guides 2021

NEW QUESTION 1
DRAG DROP
According to the Broadband TR-101 specification, drag and drop the connectivity models on the right onto the correct characteristic on the left

Answer:

Explanation:

NEW QUESTION 2
Which three options are functions of the Cisco Service Control Engine? (Choose three.)

• A. intelligent inspection and control of IP packets
• B. application of session-level bandwidth shaping
• C. provisioning of access aggregation
• D. per-subscriber bandwidth management
• E. Implementation of VPN services

Answer: ABD

NEW QUESTION 3
Refer to the exhibit. In regard to the traffic that is flowing from CE1 in the direction of CE2, what is the label stack in the packets that are leaving R6?

• A. {16}
• B. {16 25}
• C. {25}
• D. {0 25}

Answer: D

NEW QUESTION 4
What does FRTP stand for?

• A. Frame Relay Top Pseudowire
• B. Frame Relay Traffic Pseudowire
• C. Frame Relay Traffic Protocol
• D. Frame Relay Traffic Policing

Answer: D

Explanation: Frame Relay Traffic Policing provides a mechanism to rate-limit packets on switched PVCs using a "leakybucket" implementation. When enabled, Traffic Policing prevents traffic congestion by discarding or setting the Discard Eligible (DE) bit on packets that exceed specified traffic parameters. Traffic Policing parameters can be specified per DCE interface, or per switched PVC, using the 'map class' mechanisms.

NEW QUESTION 5
A network engineer is asked to connect two customer sites using Layer 2 connectivity over an MPLS backbone. One customer site uses PPP connectivity with the service provider and the other customer site uses Frame Relay connectivity with the service provider. Which option can the network engineer use to enable network connectivity between these two customer sites?

• A. GRE tunnels
• B. IP interworking
• C. Ethernet interworking
• D. L2TPv3 tunnels

Answer: B

NEW QUESTION 6
Which feature provides rapid failure detection times between the forwarding engines, while
maintaining low overhead?

• A. Resource Reservation protocol
• B. Precision Time protocol
• C. bidirectional forwarding detection
• D. MPLS traffic engineering
• E. fast hello
• F. nonstop forwarding

Answer: C

NEW QUESTION 7
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 8
A VPLS network consists of provider edge routers that have fully meshed pseudowires, the network runs unicast and multicast traffic, the network recently experienced bandwidth and CPU-related performance issue While monitoring the VPLS and interface statistics an operations engineer notice that the network is experiencing an unusual amount of broadcast and undesired multicast traffic. Which two technique can address these issue?(choose two)

• A. Change the network to run VPWS to mange the broadcast traffic efficiently
• B. Implement MAC withdrawal on each EFP in the VPLS bridge domain
• C. Set a limit on MAC learning in the pseudowire in the VPLS network
• D. Implement Storm Control in the VPLS bridge domain
• E. Implement IGMP snooping in the VPLS network

Answer: DE

NEW QUESTION 9
DRAG DROP
Drag and drop the MPLS Inter-AS VPN options on the left onto the correct description on the right

Answer:

Explanation:

NEW QUESTION 10
Which IOS features are used to avoid Routing loops when dynamic Routing protocols are used between PE and CE in MPLS-VPN networks? (Choose two)

• A. BGP cost community
• B. BGP feature allow-as in
• C. Access-list Control in Distance Vector protocol like RIP and EIGRP.
• D. SHAM links with OSPF
• E. RPF Reverse Path forwarding.
• F. Site Of Origin SOO.

Answer: CF

NEW QUESTION 11
In the Dual Stack lite solution, what is the function of the B4 component?

• A. It acts as an endpoint for the IPv6 in IPv4 encapsulation and forwarding
• B. It decapsulates the tunneled IPV4 packets, translate the network address, and routes to the IPv4 network
• C. It encapsulates the customer IPv4 packets using IPv6 tunnel and second to the AFTR
• D. It reverses network address translated of the eipv4 packets coming from the internet and it sends the resultant IPv4 packets to AFTR

Answer: C

NEW QUESTION 12
Which four statements about an IP service level agreement (SLA) are true? (Choose four)

• A. SLA responder knows type of operation, the port used, and duration.
• B. SLA responder inserts in and out timestamps in the packet payload.
• C. SLA sender and responder use the IP SLA Control Protocol to communicate with each other before sending test packets.
• D. SLA sender and responder communication can be encrypted.
• E. SLA sender and responder communication can be authenticated with MD5.

Answer: ABCE

NEW QUESTION 13
Which two network management models are supported by IPoDWDM? (Choose two.)

• A. virtual transponder protocol management
• B. segmented management
• C. integrated management
• D. traffic management
• E. slow outages management

Answer: BC

NEW QUESTION 14
Which controller uses policy-based application profiles?

• A. OpenStack
• B. Cisco Open SDN controller
• C. OpenFlow Controller
• D. Cisco APIC
• E. Cisco UCS director

Answer: D

NEW QUESTION 15
Which routing table is used by PEs and ASBRs to store all VPN routes that need to be exchanged in an Inter-AS L3VPN option B scenario?

• A. IGP table
• B. VRF routing table
• C. Global routing table
• D. BGP table

Answer: D

NEW QUESTION 16
A service provider is working to develop an evolving security technique toolset in regards to the increasing amount of attacks. In which scenario Backscatter Trace back solution is recommended?

• A. Rouge DNS/DHCP Servers
• B. Distribution Denial of service
• C. Ping of death
• D. IP Spoofing
• E. Network Attack TCP/UDP Scan

Answer: B