[Free] 2018(July) Dumps4cert Microsoft 77-602 Dumps with VCE and PDF Download 141-150

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Designing Cisco Network Service Architectures

Question No: 141

Which technology provides a layer 2 loop free and does not contain a port state named quot;Blockingquot;?

1. RPVST

2. PVST

3. MST

4. CST

Answer: A

Question No: 142

Which network virtualization plane is used to separate traffic forwarding tables?

1. control

2. data

3. management

4. Access

Answer: B

Question No: 143

Which multicast address must be available for FHRP advertisements in a multivendor environment?

A. 224.0.0.9

B. 224.0.0.18

C. 224.0.0.102

D. 224.0.0.2

Answer: B

Question No: 144

Transition to Named EIGRP without causing an outage?

1. router eigrp NAME

2. router eigrp 1 named NAME

3. router eigrp 1

   eigrp upgrade-cli NAME

4. interface fa0/1

ip router eigrp 1 named NAME

Answer: C

Question No: 145

On which two types of links should routing protocol peerings be established according to best practice? (Choose two.)

1. distribution links

2. end user links

3. transit links

4. core links

Answer: C,D Explanation:

https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Campus/HA_campus_DG/haca mpusdg.html#wp1107923

Question No: 146

Out of band management. What is the best practice Cisco design?

1. Data traffic should never pass or enter the management network

2. In-band management as backup

3. Enforce QoS

4. Enable dynamic routing

Answer: A Explanation:

https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Security/SAFE_RG/SAFE_rg/c hap9.html#wp1054521

quot;An OOB management network should be deployed using the following best practices:

鈥rovide network isolation

鈥nforce access control

鈥revent data traffic from transiting the management networkquot;

Question No: 147

Which of these statements best describes VPLS?

1. Neither broadcast nor multicast traffic is ever flooded in VPLS.

2. Multicast traffic is flooded but broadcast traffic is not flooded in VPLS.

3. VPLS emulates an Ethernet switch, with each EMS being analogous to a VLAN.

4. Because U-PE devices act as IEEE 802.1 devices, the VPLS core must use STP

5. When the provider experiences an outage, IP re-routing restores PW connectivity and MAC re-learning is needed.

Answer: C

Question No: 148

An engineer is attempting to improve OSPF network performance and discovers that the entire SPT

recomputes whenever a type 1 or type 2 LSA is received within an area. Which action can optimize SPT operations?

1. Tune LSA throttling thresholds.

2. Enable incremental SPF.

3. Configure totally stubby areas throughout the domain.

4. Summarize networks on all ABRs.

Answer: B Explanation:

https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/ospfispf.html#wp1027184

quot;Benefits of OSPF Incremental SPF OSPF uses Dijkstra#39;s SPF algorithm to compute the shortest path tree (SPT). During the computation of the SPT, the shortest path to each node is discovered. The topology tree is used to populate the routing table with routes to IP networks. When changes to a Type-1 or Type-2 link-state advertisement (LSA) occur in an area, the entire SPT is recomputed. In many cases, the entire SPT need not be

recomputed because most of the tree remains unchanged. Incremental SPF allows the system to recompute only theaffected part of the tree. Recomputing only a portion of the tree rather than the entire tree results in faster OSPF convergence and saves CPU resources. Note that if the change to a Type-1 or Type-2 LSA occurs in the calculating router itself, then the full SPT is performed.

Incremental SPF is scheduled in the same way as the full SPF. Routers enabled with incremental SPF and routers not enabled with incremental SPF can function in the same internetwork.quot;

Question No: 149

Refer to the exhibit.

The Cisco Nexus 1000V in the VMware vSphere solution effectively creates an additional access layer in the virtualized data center network; which of the following 1000V characteristics can thedesigner take advantage of?

1. Offloads the STP requirement from the external Access layer switches

2. If upstream access switches do not support vPC or VSS the dual-homed ESX host traffic can still be distributed using virtual port channel host mode using subgroups automatically discovered through CDP

3. Allows transit traffic to be forwarded through the ESX host between VMNICs

4. Can be divided into multiple virtual device contexts for service integration, enhanced security, administrative boundaries, and flexibility of deployment

Answer: B Explanation:

quot;Virtual Port Channel Host Mode Virtual Port Channel Host Mode (vPC-HM), shown in Figure 5-33 , allows a port channel from the Cisco Nexus 1000V to be terminated on two separate upstream switches, even if these switches do not support a clustering technology, such as vPC or VSS.quot;

Question No: 150

The network designer needs to consider the number of multicast applications and sources in the network to provide the most robust network possible. Which of the following is a consideration the designer must also address?

1. The IGPs should utilize authentication to avoid being the most vulnerable component

2. With SSM source or receiver attacks are not possible

3. With Shared Trees access control is always applied at the RP

4. Limit the rate of Register messages to the RP to prevent specific hosts from being attacked on a PIM-SM network

Answer: B

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