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A green data center is being deployed and a design requirement is to be able to readily scale server virtualization Which IETF standard technology can provide this requirement?

A.

data center bridging

A.

data center bridging

Answers
B.

unified fabric

B.

unified fabric

Answers
C.

Transparent Interconnection of Lots of Links

C.

Transparent Interconnection of Lots of Links

Answers
D.

fabric path

D.

fabric path

Answers
Suggested answer: C

While designing a switched topology, in which two options is UplinkFast recommended? (Choose two )

A.

when switches of different spanning-tree types are connected (for example. 802.1d connecting to 802.1w)

A.

when switches of different spanning-tree types are connected (for example. 802.1d connecting to 802.1w)

Answers
B.

on distribution layer switches

B.

on distribution layer switches

Answers
C.

when hello timers are changed to more aggressive values

C.

when hello timers are changed to more aggressive values

Answers
D.

on access layer switches

D.

on access layer switches

Answers
E.

on the core switches

E.

on the core switches

Answers
Suggested answer: A, D

You are using iSCSI to transfer files between a 10 Gigabit Ethernet storage system and a 1 Gigabit Ethernet server The performance is only approximately 700 Mbps and output drops are occurring on the server switch port. Which action will improve performance in a cost-effective manner?

A.

Change the protocol to CIFS.

A.

Change the protocol to CIFS.

Answers
B.

Increase the queue to at least 1 GB

B.

Increase the queue to at least 1 GB

Answers
C.

Use a WRED random drop policy

C.

Use a WRED random drop policy

Answers
D.

Enable the TCP Nagle algorithm on the receiver

D.

Enable the TCP Nagle algorithm on the receiver

Answers
Suggested answer: A

Customer XYZ network consists of an MPLS core. IS-IS running as IGP a pair of BGP route reflectors for route propagation, and a few dozens of MPLS-TE tunnels for specific tactical traffic engineering requirements. The customer's engineering department has some questions about the use of the Overload Bit in the IS-IS networks and how it could be used to improve their current network design.

Which two concepts about the Overload Bit are true? (Choose two.)

A.

It can be set on a router during the startup process for a fixed period of time

A.

It can be set on a router during the startup process for a fixed period of time

Answers
B.

Networks advertised within the LSPs of the respective node will become unreachable

B.

Networks advertised within the LSPs of the respective node will become unreachable

Answers
C.

It forces the midpoint MPLS-TE node to reoptimize the primary tunnels going through the OL node.

C.

It forces the midpoint MPLS-TE node to reoptimize the primary tunnels going through the OL node.

Answers
D.

It can be set on a router until other interacting protocols have signaled convergence.

D.

It can be set on a router until other interacting protocols have signaled convergence.

Answers
E.

It is not recommended on BGP Route Reflectors

E.

It is not recommended on BGP Route Reflectors

Answers
Suggested answer: A, D

You have been tasked with designing a data center interconnect as part of business continuity You want to use FCoE over this DCI to support synchronous replication. Which two technologies allow for FCoE via lossless Ethernet or data center bridging? (Choose two.)

A.

DWDM

A.

DWDM

Answers
B.

EoMPLS

B.

EoMPLS

Answers
C.

SONET/SDH

C.

SONET/SDH

Answers
D.

Multichassis EtherChannel over Pseudowire

D.

Multichassis EtherChannel over Pseudowire

Answers
E.

VPLS

E.

VPLS

Answers
Suggested answer: A, C

You are designing a large-scale DMVPN network with more than 500 spokes using EIGRP as the IGP protocol Which design option eliminates potential tunnel down events on the spoke routers due to the holding time expiration?

A.

Increase the hold queue on the physical interface of the hub router.

A.

Increase the hold queue on the physical interface of the hub router.

Answers
B.

Increase the hold queue on the tunnel interface of the spoke routers

B.

Increase the hold queue on the tunnel interface of the spoke routers

Answers
C.

Increase the hold queue on the tunnel interface of the hub router

C.

Increase the hold queue on the tunnel interface of the hub router

Answers
D.

Apply QoS for pak_priority class

D.

Apply QoS for pak_priority class

Answers
E.

Increase the hold queue on the physical interface of the spoke routers.

E.

Increase the hold queue on the physical interface of the spoke routers.

Answers
Suggested answer: C

Refer to the exhibit.

A customer runs OSPF with Area 5 between its aggregation router and an internal router When a network change occurs in the backbone. Area 5 starts having connectivity issues due to the SPF algorithm recalculating an abnormal number of times in Area 5 You are tasked to redesign this network to increase resiliency on the customer network with the caveat that Router B does not support the stub area How can you accomplish this task*?

A.

Increase the bandwidth on the connection between Router A and Router B

A.

Increase the bandwidth on the connection between Router A and Router B

Answers
B.

Implement LSA filtering ontheAB, allowing summary routes and preventing more specific routes into Area 5

B.

Implement LSA filtering ontheAB, allowing summary routes and preventing more specific routes into Area 5

Answers
C.

Create a virtual link to Area 0 from Router B to the ABR

C.

Create a virtual link to Area 0 from Router B to the ABR

Answers
D.

Turn on LSA throttling on all devices in Area 5

D.

Turn on LSA throttling on all devices in Area 5

Answers
E.

Set Area 5 to stubby at the ABR anyway

E.

Set Area 5 to stubby at the ABR anyway

Answers
Suggested answer: B

The network designer needs to use GLOP IP addresses in order to make them unique within their ASN Which multicast address range should be used?

A.

232.0.0.0 to 232 255.255.255

A.

232.0.0.0 to 232 255.255.255

Answers
B.

H233.0.0 0 to 233.255.255 255

B.

H233.0.0 0 to 233.255.255 255

Answers
C.

239000 to 239255255.255

C.

239000 to 239255255.255

Answers
D.

224000 to 2240.0 255

D.

224000 to 2240.0 255

Answers
Suggested answer: B

You are tasked to design a QoS policy for a service provider so they can include it in the design of their MPLS core network If the design must support an MPLS network with six classes, and CEs will be managed by the service provider, which QoS policy should be recommended?

A.

map IP CoS bits into the IP Precedence field

A.

map IP CoS bits into the IP Precedence field

Answers
B.

map flow-label bits into the Exp field

B.

map flow-label bits into the Exp field

Answers
C.

map IP precedence bits into the DSCP field

C.

map IP precedence bits into the DSCP field

Answers
D.

map DSCP bits into the Exp field

D.

map DSCP bits into the Exp field

Answers
Suggested answer: D

Which two foundational aspects of loT are still evolving and being worked on by the industry at large? (Choose two)

A.

WiFi protocols

A.

WiFi protocols

Answers
B.

Regulatory domains

B.

Regulatory domains

Answers
C.

Low energy Bluetooth sensors

C.

Low energy Bluetooth sensors

Answers
D.

loT consortia

D.

loT consortia

Answers
E.

Standards

E.

Standards

Answers
Suggested answer: A, C
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