[Free] Download New Latest (June 2016) Cisco 400-201 Practice Test 61-70

Ensurepass

QUESTION 61

Which four services use the inner labels of an MPLS label stack? (Choose four)

 

A.

MPLS VPN

B.

switching path in MPLS core

C.

Cisco MPLS Traffic Engineering and Fast Reroute

D.

MPLS over ATM

E.

VPN over Traffic Engineering core

F.

any transport over MPLS

 

Correct Answer: ACEF

 

 

QUESTION 62

R3 and R4 are Route-Reflectors and there is an iBGP session between them, there is NO iBGP session between R1 and R2. For an External Route from CE-2 in R2 to reach R1, which two statements are true?

 

clip_image002

 

A.

R1, R3 and R4 establish full mesh iBGP sessions, R2, R3 and R4 establish full mesh iBGP sessions.

B.

R1 acts as a Route-Reflector client to R3, R2 acts as a Route-Reflector client to R4.

C.

R1 acts as a Route-Reflector client to R4, R4 acts as a Route-Reflector client to R3, R2 acts as a Route-Reflector client to R3.

D.

CE-2 establishes multi-hop E-BGP sessions with R3 and R4.

 

Correct Answer: BC

 

 

QUESTION 63

RIPv2 differs from RIPv1 in which three things? (Choose three).

 

A.

it uses multicast address 224.0.0.10, instead of broadcast.

B.

it uses multicast address 224.0.0.9, instead of broadcast.

C.

it can use either multicast or broadcast addresses,instead of just broadcast.

D.

it sends incremental updates,instead of periodic updates.

E.

it is classless, instead of classfull

F.

it supports authentication, and RIPv1 does not

 

Correct Answer: BEF

 

 

 

 

 

 

 

 

 

 

QUESTION 64

With the BGP peerings shown, which 3 solutions are most correct? (Choose three.)

 

clip_image004

 

A.

rtrA and rtrD are route-reflector-clients; rtrB and rtrC are route reflectors part of the same cluster.

B.

rtrA and rtrD are route-reflector-clients; rtrB and rtrC are route reflectors part of the different cluster.

C.

rtrA, rtrB and rtrC are part of a confederation sub-AS and rtrD is part of a different confederation sub-AS

D.

rtrA, rtrB are part of one confederation sub-AS and rtrC, rtrD are part of a different confederation sub-AS

E.

rtrA, rtrB and rtrC are part of a confederation sub-AS where rtrB is a route reflector and rtrA, rtrC are routereflector-clients.

 

Correct Answer: BDE

 

 

QUESTION 65

The show ip ospf database external command displays information about which OSPF LSA type?

 

A.

LSA type 1

B.

LSA type 2

C.

LSA type 7

D.

LSA type 3

E.

LSA type 9

F.

LSA type 5

 

Correct Answer: F

 

 

 

 

 

QUESTION 66

The mechanisms for distributing LDP are:

 

A.

CEF and the FIB table

B.

UDP and IP

C.

A and B

D.

RSVP and CEF

E.

LDP and RSVP

 

Correct Answer: E

 

 

QUESTION 67

When the Cisco IOS OSPF command ip ospf dead-interval minimal hello-multiplier 5 is configured, which two statements are true? (Choose two.)

 

A.

OSPF hello interval is 5 seconds

B.

OSPF hello interval is 1 second

C.

OSPF dead interval is 1 second

D.

OSPF dead interval is 5 seconds

E.

OSPF dead interval is 20 seconds

F.

OSPF hello interval is 0.2 second

 

Correct Answer: CF

 

 

QUESTION 68

Cisco IOS XR has implemented a nonstop routing feature so that when RP failover occurs, the routing information can be recovered locally. Which protocol does not support the NSR feature?

 

A.

OSPF

B.

LDP

C.

BGP

D.

IS-IS

E.

RSVP

 

Correct Answer: E

 

 

QUESTION 69

What is the order of preference for these commands when all of them are applied to one neighbor in the BGP inbound filter direction?

 

A.

prefix-list/distribute-list, filter-list, route-map

B.

route-map, filter-list, prefix-list/distribute-list

C.

route-map, prefix-list/distribute-list, filter-list

D.

filter-list, prefix-list/distribute-list, route-map

E.

prefix-list/distribute-list, route-map, filter-list

 

Correct Answer: B

Explanation:

Q. What is the order of preference of attributes when some or all are applied to one neighbor in BGP?

A.The order of preference varies based on whether the attributes are applied for inbound updates or outbound updates.

For inbound updates the order of preference is:

route-map

filter-list

prefix-list, distribute-list

For outbound updates the order of preference is:

prefix-list, distribute-list

filter-list

route-map

Note: The attributes prefix-list and distribute-list are mutually exclusive, and only one command (neighbor prefix-list or neighbor distribute-list) can be applied to each inbound or outbound direction for a particular neighbor.

 

 

QUESTION 70

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

 

A.

The peer router immediately removes the BGP routers that it learned from the restarting router from its BGP routing tables.

B.

The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboring routers.

C.

The peer router sends an end-of-RIB message to the restarting router.

D.

The restarting router removes any stale prefixes after the timer for stale entries expires.

E.

The restarting router does not remove any stale prefixes after the timer for stale entries expires.

 

Correct Answer: BD

Explanation:

BGP Graceful Restart for NSF

When an NSF-capable router begins a BGP session with a BGP peer, it sends an OPEN message to the peer.

Included in the message is a declaration that the NSF-capable or NSF-aware router has graceful restart capability. Graceful restart is the mechanism by which BGP routing peers avoid a routing flap following a switchover. If the BGP peer has received this capability, it is aware that the device sending the message is NSF-capable. Both the NSF-capable router and its BGP peer(s) (NSF-aware peers) need to exchange the graceful restart capability in their OPEN messages, at the time of session establishment. If both the peers do not exchange the graceful restart capability, the session will not be graceful restart capable.

 

If the BGP session is lost during the RP switchover, the NSF-aware BGP peer marks all the routes associated with the NSF-capable router as stale; however, it continues to use these routes to make forwarding decisions for a set period of time. This functionality means that no packets are lost while the newly active RP is waiting for convergence of the routing information with the BGP peers.

After an RP switchover occurs, the NSF-capable router reestablishes the session with the BGP peer. In establishing the new session, it sends a new graceful restart message that identifies the NSF-capable router as having restarted.

At this point, the routing information is exchanged between the two BGP peers. Once this exchange is complete, the NSF-capable device uses the routing information to update the RIB and the FIB with the new forwarding information. The NSF-aware device uses the network information to remove stale routes from its BGP table. Following that, the BGP protocol is fully converged.

If a BGP peer does not support the graceful restart capability, it will ignore the graceful restart capability in an OPEN message but will establish a BGP session with the NSF-capable device. This functionality will allow interoperability with non-NSF-aware BGP peers (and without NSF functionality), but the BGP session with non-NSF-aware BGP peers will not be graceful restart capable.

 

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