Ensurepass

QUESTION 51

You are designing a network that will run EIGRP over a Metro Ethernet service that does not employ a link-loss technology. What will be the impact on convergence if there is a break in the end-to-end Layer 2 connectivity within the service provider network?

 

A.

The routers will immediately lose their adjacencies and converge.

B.

The routing protocol will not converge until the hold timers have expired.

C.

The switch ports connected to the router will go down and the routers will immediately converge.

D.

The VLAN on the switches will go inactive, the ports associated on the switch will go down, and the routers will immediately converge.

 

Correct Answer: B

 

 

QUESTION 52

In which two ways is a network design improved by the inclusion of IP Event Dampening? (Choose two.)

 

A.

reduces processing load

B.

provides sub-second convergence

C.

improves network stability

D.

prevents routing loops

E.

quickly detects network failures

 

Correct Answer: AC

 

 

 

 

 

 

 

 

QUESTION 53

You have been hired by Acme Corporation to evaluate their existing network and determine if the current network design is secure enough to prevent man-in-the-middle attacks. When evaluating the network, which switch security option should you investigate to ensure that authorized ARP responses take place according to known IP-to-MAC address mapping?

 

A.

ARP rate limiting

B.

DHCP snooping

C.

Dynamic ARP Inspections

D.

IP Source Guard

 

Correct Answer: C

 

 

QUESTION 54

You are designing a network using multipoint GRE tunnels and need to be able to detect when connectivity between the GRE tunnel endpoints is broken. Which statement is true about configuring keepalives for multipoint GRE tunnels?

 

A.

The keepalive timer values on the routers must have the same value.

B.

Both routers must support GRE tunnel keepalives.

C.

No configuration is required to detect when connectivity is broken between the GRE tunnel endpoints.

D.

GRE tunnel keepalives will not detect when connectivity is broken between the GRE tunnel endpoints.

 

Correct Answer: D

 

 

QUESTION 55

A metro service provider is planning Resilient Ethernet Protocol for his backbone. Which two aspects must be considered before the network design is finalized? (Choose two.)

 

A.

Two Resilient Ethernet Protocol segments can be connected redundantly at two points. One connection will be blocked, using the Spanning Tree Protocol defined in IEEE 802.1D.

B.

UniDirectional Link Detection Protocol can be enabled on Resilient Ethernet Protocol interfaces to detect unidirectional failures.

C.

The guaranteed convergence recovery time is less than 50 ms for the local segment.

D.

A Resilient Ethernet Protocol segment is limited to a maximum of seven devices.

E.

VLAN load balancing for optimal bandwidth usage is supported in any Resilient Ethernet Protocol segment.

 

Correct Answer: BE

 

 

QUESTION 56

A company plans to include Nonstop Forwarding and Bidirectional Forwarding Detection as a part of their network redundancy plan. In which two ways do NSF and BFD work together when different hardware platforms are compared? (Choose two.)

 

A.

During supervisor engine or routing engine failover, the NSF feature will always ensure that the BFD at the peer router will not trigger a link down independent of the used hardware platform.

B.

At some hardware platforms, BFD and NSF are not supported together. During supervisor engine or routing engine failover, the BFD at the peer router will trigger a link down.

C.

To ensure that BFD at the peer router will not trigger a link down during NSF, the BFD packets must be processed fast enough, and, during supervisor engine or routing engine failover, by processing the BFD independent from the supervisor engine or routing engine.

D.

Because BFD is always processed at the line cards (not at the supervisor engine or routing engine), a supervisor engine or routing engine failover will not affect the BFD peer router.

E.

Because BFD is always processed at the supervisor engine or routing engine, a supervisor engine or routing engine failover will always trigger a link down at the peer router.

 

Correct Answer: BC

 

 

QUESTION 57

During a network design review, it is recommended that the network with a single large area should be broken up into a backbone and multiple nonbackbone areas. There are differing opinions on how many ABRs are needed for each area for redundancy. What would be the impact of having additional ABRs per area?

 

A.

There is no impact to increasing the number of ABRs.

B.

The SPF calculations are more complex.

C.

The number of externals and network summaries are increased.

D.

The size of the FIB is increased.

 

Correct Answer: C

 

 

QUESTION 58

What are three key design principles when using a classic hierarchical network model? (Choose three.)

 

A.

The core layer controls access to resources for security.

B.

The core layer should be configured with minimal complexity.

C.

The core layer is designed first, followed by the distribution layer and then the access layer.

D.

A hierarchical network design model aids fault isolation.

E.

The core layer provides server access in a small campus.

F.

A hierarchical network design facilitates changes.

 

Correct Answer: BDF

 

 

QUESTION 59

You are the lead IP/MPLS network designer of a service provider called XYZ. You are leading a design discussion regarding IPv6 implementation in the XYZ MPLS network, using MPLS 6PE/6VPE techniques. Currently, XYZ provides IPv4 multicast services over an MPLS network by using MVPN, and would like to provide parallel IPv6 multicast services. Which three multicast solutions should be enabled? (Choose three.)

 

A.

native IPv6, only for multicast services

B.

MPLS 6PE/6VPE, because it provides IPv6 multicast support by default

C.

an overlay model using Layer 2 MPLS tunnels

D.

PIM-DM to enable IPv6 multicast in conjunction with MPLS 6PE/6VPE

E.

MVPN for IPv6 multicast service

 

Correct Answer: ACE

 

 

QUESTION 60

You are designing a multisite VPN solution for a customer and you are concerned with the additional overhead of point-to-point tunnels and the associated overlay routing with DMVPN. How does a GDOI-based VPN eliminate the additional tunnel and routing overhead found in DMVPN?

 

A.

The GDOI-based VPN requires overlaying a secondary routing infrastructure through the tunnels.

B.

In a GDOI-based VPN, all group members share a common security association.

C.

The GDOI-based VPN requires the provisioning of a complex connectivity mesh.

D.

The GDOI-based VPN leverages the routing protocol to find its peer for tunnel setup.

 

Correct Answer: B

 

Free VCE & PDF File for Cisco 352-001 Real Exam

Instant Access to Free VCE Files: CCNA | CCNP | CCIE …
Instant Access to Free PDF Files: CCNA | CCNP | CCIE …

Comments are closed.