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A data center provider has designed a network using these requirements

 Two data center sites are connected to the public internet

 Both data centers are connected to different Internet providers

 Both data centers are also directly connected with a private connection for the internal traffic can also be at this direct connection The data center provider has only /19 public IP address block

Under normal conditions, Internet traffic should be routed directly to the data center where the services are located. When one Internet connections fails to complete traffic for both data centers should be routed by using the remaining Internet connection in which two ways can this routing be achieved? (Choose two)

A.

One /20 block is used for the first data center and the second /20 block is used for the second data center. The /20 block from the local data center is sent out without path prepending and the /20 block from the remote data center is sent out with path prepending at both sites

B.

One /20 block is used for the first data center and the second /20 block is used for the second data center. Each /20 block is only sent out locally. The /19 block is sent out at both Internet connections for the backup case to reroute the traffic through the remaining internet connection

C.

One /20 block is used for the first data center and the second /20 block is used for the second data center. The /20 block from the local data center is sent out with a low BGP local preference and the /20 block from the remote data center is sent out with a higher BGP local preference of both sites

D.

BGP will always load-balance the traffic to both data center sites

E.

One /20 block is used for the first data center and the second /20 block is used for the second data center. The /20 block from the local data center is sent out with a low BGP weight and the /20 block from the remote data center is sent out with a higher BGP weight at both sites

F.

The data center provider must have an additional public IP address block for this routing

Which three network management requirements are common practices in network design? (Choose three)

A.

Collect RMON poll information for future regression analysis

B.

Ensure that all network devices have their clocks synchronized

C.

Look at average counters instead of instantaneous counters for inconsistent and bursty KPIs, such as CPU utilization and interface utilization.

D.

Collect SNMP poll information for future regression analysis

E.

Validate data plane health, application and services availability with synthetic traffic

F.

Capture both ingress and egress flow-based packets. While avoiding duplications of flows

Refer to the exhibit.

This Layer 2 ring has 10 VLANs with 1000 MAC addresses in each VLAN. Which protocol or mechanism provides the shortest traffic outage if the link marked with “X” fails?

A.

Ethernet linear protection switching

B.

PVRST

C.

MST

D.

Ethernet ring protection switching

You are solving a design failure on a massive Hadoop cluster network that has an application with TCP incast behavior (also known as TCP Throughput collapse) affecting its many-to-one communications with packet loss at the last-hop network device. Which metric must be measured to ensure that the network provides the best performance for this application?

A.

Availability

B.

Bandwidth utilization

C.

Jitter values

D.

Buffer utilization

Refer to the exhibit.

In a link failure scenario, what is a benefit of adding APS protected link to the design solution?

A.

APS switches traffic to a backup fiber automatically and sends notifications

B.

APS detects failure and sends notifications

C.

APS detects failure on transmission infrastructure based on copper.

D.

APS applies QoS policies in case Of link failure

What are three common objectives of customers using multiple cloud providers? (Choose three )

A.

regional cloud provider access

B.

security

C.

analytics

D.

high availability

E.

feature disparity

F.

bandwidth

In a VPLS design solution, which situation indicates that BGP must be used instead of LDP in the control plane?

A.

MAC address learning scales better through BGP

B.

BGP supports VPLS interworking

C.

Pseudowire configuration overhead is reduced

D.

There are no full-mesh pseudowire due to the route reflection feature of BGP

Refer to the exhibit.

You must review this single OSPF area, DMVPN network because the company has noticed a few area 0 convergence and stability issues. Also, traffic destined to the data center from one of the spokes as the next hop on the path. The company prefers that all traffic destined to the data center uses the least amount of hops. Which solution resolves these issues with the minimum amount of changes on the network?

A.

Migrate from OSPF to static routes between the hub routers and the spoke routers and deploy IP SLA for route health checks

B.

Migrate from OSPF to EIGRP between the hub routers and the spoke routers

C.

Modify OSPF cost metrics on all backup links

D.

Create areas between each hub and their spoke routers, to ensure that the hub routers become DRs

Which mechanism enables small, unmanaged switches to plug into ports of access switches without risking switch loops?

A.

PortFast

B.

UDLD

C.

Root guard

D.

BPDU guard