[2017 New] Easily Pass Cisco 400-201 Exam With Lead2pass Latest Cisco 400-201 Brain Dumps (21-40)

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Following questions and answers are all new published by Cisco Official Exam Center: https://www.lead2pass.com/400-201.html

What IOS commands display MPLS label mapping on an LSR?

A.    Show mpls ldp parameters
B.    Show mpls ldp bindings
C.    Show mpls forwading-table
D.    Show mpls ldp discovery
E.    Show mpls ldp neighbor detail

Answer: B

Drag and Drop Questions




Refer to the exhibit. The vrf MAINT has been provisioned and used by the Service Provider management network. The engineer discovers that syslog messages are not being received on the syslog server. IP reachability has been validated using ping.
Which issue in the configuration must be corrected?


A.    logging on must include the vrf MAINT keyword.
B.    logging host must include the vrf MAINT keyword.
C.    The logging facility must be configured for syslog processing.
D.    The route targets that are configured do not match the route distinguisher.

Answer: B
http://www.cisco.com/c/en/us/td/docs/ios/12_2sr/12_2sra/feature/guide/srvrfslg.html#wp10 59076

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

Answer: BCD

An R1 router requires an equal load balancing to reach the prefix 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.

Answer: AC
BGP link-bandwidth is for unequal-cost routes.

A company is deciding between an HVR and SVR solution in order to finalize a virtualization project proposal. Which is an advantage of a HVR solution versus a SVR solution?

A.    A HVR solution implements dedicated data plane resources.
B.    A HVR solution implements shared control plane resources.
C.    A HVR solution introduces significant contention of resources.
D.    A HVR solution implements dedicated chassis resources.

Answer: A

Which three of these are optical channel data unit (ODU) overhead fields? (Choose three)

A.    general communication channel 0 (GCC0)
B.    section monitoring
C.    reserved (RES)
D.    general communication channels 1 and 2 (GCC1 GCC2)
E.    tandem connection monitoring activation deactivation (TCM ACT)

Answer: CDE

Which three modes are the operating of HDLC? (Choose three)

A.    asynchronous balanced mode (ABM)
B.    normal response mode (NRM)
C.    normal peer mode (NPM)
D.    asynchronous client mode (ACM)
E.    asynchronous response mode (ARM)

Answer: ABE
Asynchronous response mode is an HDLC addition[1] for use over full-duplex links. While retaining the primary/secondary distinction, it allows the secondary to transmit at any time. Asynchronous balanced mode added the concept of a combined terminal which can act as both a primary and a secondary. There are some subtleties about this mode of operation; while many features of the protocol do not care whether they are in a command or response frame, some do, and the address field of a received frame must be examined to determine whether it contains a command (the address received is ours) or a response (the address received is that of the other terminal).

BGP best route selection process is based on what?

A.    path attributes
B.    lowest cost
C.    highest bandwidth
D.    lowest delay
E.    lowest hop-count

Answer: A

Refer to the exhibit. In the short-pipe QoS mode, this customer has QoS control for which two links? (Choose two.)


A.    a
B.    c
C.    d
D.    b
E.    e

Answer: AE

Cisco IOS XR software is partitioned into three planes: control, data, and management. Which three of these belong to the data plane? (Choose three.)

A.    XML
B.    RIB
C.    FIB
D.    QoS
E.    PFI

Answer: CDE

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

A.    TE FRR
B.    IP FRR
C.    graceful restart
D.    BFD
E.    NSR

Answer: CE

What are three main characteristics of mLDP that differ from RSVP-TE? (Choose three.)

A.    The LSPs are built from tailend to headend.
B.    The LSPs are built from headend to tailend.
C.    It supports only P2MP LSPs.
D.    It supports both P2MP and MP2MP LSPs.
E.    Signaling is periodic.
F.    No periodic signaling is performed.

Answer: ADF

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.

Answer: AF
A value of 1 represents the “Router Alert Label”. When a received packet contains this label value at the top of the label stack, it is delivered to a local software module for processing. The actual packet forwarding is determined by the label beneath it in the stack. However, if the packet is forwarded further, the Router Alert Label should be pushed back onto the label stack before forwarding. The use of this label is analogous to the use of the “Router Alert Option” in IP packets (for example, ping with record route option)

Refer the exhibit. Two Autonomous Systems are enabled to support multicast. An engineer wants to set up configuration so that a multicast client at AS 100 can receive multicast traffic from the M-Server at AS 200. However, the RP announcements must be limited within each autonomous system site. Which Cisco IOS configuration achieves this goal?


A.    On both ASBRs Eth0/0 and the no ip pim sparse-mode command.
B.    On both ASBRs add the ip pim send-rp-discovery scope 1 command.
C.    On both RPs add the ip pim send-rp-discovery scope 2 command.
D.    On both ASBRs Eth0/0 and the ip pim bsr-border command.
E.    On both ASBRs Eth0/0 and the ip pim dense-mode command.
F.    On both RPs add the ip pim bsr-border command.

Answer: D

What is the main advantage of H-VPLS over VPLS?

A.    H-VPLS provides redundancy.
B.    H-VPLS provides security.
C.    H-VPLS improves the scalability.
D.    H-VPLS allows a broader use of protocols.

Answer: C

In a Layer 2 VPN service, which is the default behavior of an EVC-based platform with regards to VLAN manipulation?

A.    keeps the VLAN tag of the incoming frame
B.    attaches two VLAN tags to the incoming frame
C.    removes the VLAN tag from the incoming frame
D.    removes all the VLAN tags from the incoming frame
E.    sets the VLAN tag of the incoming frame

Answer: A

Which of these is not a component of MPLS traffic engineering?

A.    trunk admission control
B.    forwarding traffic to tunnel
C.    information distribution
D.    path selection, calculation, and setup
E.    traffic patterns prediction

Answer: E

Which three statements about MPLS traffic engineering (MPLS TE) are true? (Choose three)

A.    MPLS TE supports admission control
B.    MPLS TE tunnel traffic is a link attribute to compute the TE tunnel path
C.    MPLS TE uses BGP extension to advertise link attributes
D.    MPLS TE provides protection capability
E.    MPLS TE uses RSVP to establish LSP

Answer: ADE

Which three statements about BGP confederation and route reflectors are true? (Choose three)

A.    Clusters are used in confederation schemes to avoid loops.
B.    BGP network can have a confederation within a route reflector area.
C.    An internal BGP network cannot have a route reflector within a confederation.
D.    An internal BGP network can have a route reflector within a confederation.
E.    Clusters are used in route reflector schemes to avoid loops.
F.    BGP network cannot have a confederation within a route reflector area.

Answer: DEF

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