Cisco 400-007 Practice Test - Questions Answers, Page 12
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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?
data center bridging
unified fabric
Transparent Interconnection of Lots of Links
fabric path
While designing a switched topology, in which two options is UplinkFast recommended? (Choose two )
when switches of different spanning-tree types are connected (for example. 802.1d connecting to 802.1w)
on distribution layer switches
when hello timers are changed to more aggressive values
on access layer switches
on the core switches
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?
Change the protocol to CIFS.
Increase the queue to at least 1 GB
Use a WRED random drop policy
Enable the TCP Nagle algorithm on the receiver
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.)
It can be set on a router during the startup process for a fixed period of time
Networks advertised within the LSPs of the respective node will become unreachable
It forces the midpoint MPLS-TE node to reoptimize the primary tunnels going through the OL node.
It can be set on a router until other interacting protocols have signaled convergence.
It is not recommended on BGP Route Reflectors
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.)
DWDM
EoMPLS
SONET/SDH
Multichassis EtherChannel over Pseudowire
VPLS
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?
Increase the hold queue on the physical interface of the hub router.
Increase the hold queue on the tunnel interface of the spoke routers
Increase the hold queue on the tunnel interface of the hub router
Apply QoS for pak_priority class
Increase the hold queue on the physical interface of the spoke routers.
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*?
Increase the bandwidth on the connection between Router A and Router B
Implement LSA filtering ontheAB, allowing summary routes and preventing more specific routes into Area 5
Create a virtual link to Area 0 from Router B to the ABR
Turn on LSA throttling on all devices in Area 5
Set Area 5 to stubby at the ABR anyway
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?
232.0.0.0 to 232 255.255.255
H233.0.0 0 to 233.255.255 255
239000 to 239255255.255
224000 to 2240.0 255
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?
map IP CoS bits into the IP Precedence field
map flow-label bits into the Exp field
map IP precedence bits into the DSCP field
map DSCP bits into the Exp field
Which two foundational aspects of loT are still evolving and being worked on by the industry at large? (Choose two)
WiFi protocols
Regulatory domains
Low energy Bluetooth sensors
loT consortia
Standards
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