Download New Updated (Spring 2015) Cisco 350-029 Actual Tests 191-200

By | April 26, 2015

Ensurepass

 

QUESTION 191

What is the effect of changing DMT interleaved delay from 3 milliseconds to 15 milliseconds?

 

A.

Latency remains the same, but throughput is decreased.

B.

Latency remains the same, but error correction effectivesmay also be reduced.

C.

Latency is increased, but faster error correction occurs.

D.

Fewer ATM PVCs can be provisioned on DSL line.

 

Correct Answer: C

 

 

QUESTION 192

Typical ADSL broadband Internet access requires a username and password to be entered onend-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

 

Correct Answer: E

 

 

QUESTION 193

In Ethernet Aggregation application which option is needed when the U-PE connects to an N-PE and broadband remote access servers?

 

A.

Ethernet Multipoint Service (EMS)

B.

VPLS

C.

E1

D.

Wire Service

 

Correct Answer: A

 

 

 

 

QUESTION 194

Option 10C is an implementation of Inter-ASMPLS VPN. Which two statements about Option10C are true? (Choose two.)

 

A.

Great scalability is offered

B.

Route Target Rewrite must be configured on ASBRs

C.

Multihop EBGP is utilized between route reflectors

D.

Multihop EBGP is utilized between ASBRs

E.

The ASBRs hold VPNv4 routes

 

Correct Answer: AC

 

 

QUESTION 195

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 carrier. The routing protocol enables the customer carrier to exchange IGP routing information with the backbone carrier.

 

Correct Answer: ABCE

 

 

QUESTION 196

In the Carrier Supporting Carrier (CsC) feature, which two protocols run between CSC- PEand CSC-CE. (Choose two)

 

A.

IGP and RSVP

B.

EBGPv4 with a sending community

C.

IGP and EBGPv4

D.

IGP and LDP

E.

EBGPv4 with a sending label

 

Correct Answer: DE

 

 

QUESTION 197

Option 10A (back-to-back VRF) is an implementation of inter-AS MPLS VPN. Which offourstatements about option 10A are not true? (Choose four.)

 

A.

MPLS is required between the ASBRs.

B.

ASBR must hold all routing information.

C.

It is a scalable solution.

D.

It is a simple solution.

E.

MP-EBGP is used to exchange routes between ASBRs.

 

Correct Answer: ACDE

 

 

QUESTION 198

Identify the differences of option 10A, as opposed to option 10C, for interAS vpn offerings For option 10A? (Choose three).

 

A.

Greater scalability is offered

B.

The ASBR holds VPNv4 routes

C.

Relative technical simplicity is offered

D.

Lower relative security is offered

E.

Multihop eBGP between ASBRs is utilized

F.

Better suitability for InterProvider VPNs is provided

 

Correct Answer: BCF

 

 

QUESTION 199

Which two features prevent routing loops between the OSPF sites of acustomer when the sites are multihomed or a backdoor link is used between the sites? (Choose two.)

 

A.

sham link

B.

down bit

C.

virtual link

D.

Site of Origin

E.

domain tag

 

Correct Answer: BE

Explanation:

If a route sent from a PE router to a CE router could then be received by another PE router from one of its own CE router, there are chances of routing loops. This situation is possible when a “backdoor link” connects two CE routers connected to two different PE routers. To prevent this, the PE sets the DN bit in any LSA that it sends to the CE router. If the PE router receives any LSA with DN bit set, it ignores the LSA.

 

1) DN bit:

When a PE router sends a Type-3 LSA to a CE router, the DN bit in LSA Options field must be set. Now if the CE router sends the Type-3 LSA toother PE router(s), the PE router will notredistribute it further.

 

When a PE router needs to distribute a route to a CE router which comes from the outside of CE router’s OSPF domain, the PE router presents itself as an ASBR and distributes the route inType-5 LSA. The DN bit must be set in the LSA.

 

The Options field is present in all LSAs. The Options field is 1-byte long as follows- DN O DC EA N/P MC E MT

 

2) Route Tags (Domain Tags):

In some implementations (where DN bit is not set), Domain Tags (namedby Cisco) are used to ensure Type-5

 

LSAs generated by a PE router will be ignored by other PE routers that may receive it. The value of Domain tag is configurable and arbitrary if not set. Hence must be distinct from other OSPF tags

 

 

QUESTION 200

WhichIOS 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.

 

Correct Answer: CF

 

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