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NEW QUESTION 44
You have been hired by a startup company to provide optical services using MPLS-TP. Which three options describe reasons to use the MPLS-TP standard in your design? (Choose three.)
- A. MPLS-TP includes extensions to native MPLS OAM for fault detection, monitoring, and propagation.
- B. MPLS-TP uses an IANA assigned label 13 for OAM.
- C. MPLS-TP is a newer packet transport technology that replaces SONET/SDH.
- D. MPLS-TP requires a routing protocol.
- E. MPLS-TP uses Ethernet Y.1731 OAM.
Answer: A,B,C
NEW QUESTION 45
ACME Agricultural requires that access to all network devices is granted based on identify validation, and an authentication server was installed for this purpose. Currently the network team uses a list of passwords based on regions to access the internal corporate network devices. Which protocol do you recommend to ensure identify validation from the authentication server to the corporate directory?
- A. SSH
- B. LDAP
- C. HTTPS
- D. TACACS+
Answer: B
NEW QUESTION 46
Which two factors can significantly affect the OSPF network convergence time? (Choose two.)
- A. different processor capabilities of devices
- B. the tuning of OSPF LSA timers
- C. the diameter of the OSPF network
- D. the number of OSPF routes
Answer: A,B
NEW QUESTION 47
A large enterprise company is redesigning their WAN infrastructure and has these design requirements
* The Frame Relay WAN infrastructure will be replaced with an MPLS VPN service.
* BGP is the PE-CE routing protocol adopted for this scenario.
* There are 3000 routes in the routing database of the distribution routers.
* All 3000 routers will be advertised from the access routers through the MPLS network.
* The service provider that provides this MPLS VPN service supports only 1000 prefixes per VRF.
Which two design solutions ensure that the enterprise access routers reach all devices in this enterprise network? (Choose two)
- A. Configure null routes and aggregate routes for the prefixes in your network on the distribution routers.
- B. Configure the access routers to send a default route to the MPLS network.
- C. Summarize the routes on the MPLS WAN interfaces of the distribution routers.
- D. Configure the distribution routers to send a default route to the MPLS network.
- E. Use prefix lists on the distribution routers to control which routes are sent to the MPLS network.
Answer: C,D
NEW QUESTION 48
Refer to the exhibit.
Which two options are two characteristics of the single-tier headend architecture for
DMVPN designs? (Choose two.)
- A. Spokes cannot be used as RP in multicast deployments.
- B. It is used in dual-cloud topologies for spoke-to-spoke connectivity.
- C. It only supports hub-and-spoke connectivity.
- D. Each DMVPN cloud has two different headend routers for high availability purposes.
- E. The mGRE and crypto functions are on the same router.
Answer: B,E
NEW QUESTION 49
You are a network technician for the P4S company, study the exhibit carefully. P4S-R1 is redistributing
10.1.5.0/24 into Area 1 in this network. Which LSA containing 10.1.5.0/24 will P4S-R6 have in its database?
- A. P4S-R6 will not have any LSAs containing 10.1.5.0/24.
- B. P4S-R6 will have a border router (type 4) LSA in its local database for 10.1.5.0/24.
- C. P4S-R6 will have an NSSA external (type 7) LSA in its local database for 10.1.5.0/24.
- D. P4S-R6 will have an external (type 5) LSA for 10.1.5.0/24 in its local database.
Answer: A
Explanation:
Section: (none)
Explanation/Reference:
NEW QUESTION 50
You work as a network technician for an IT company, you are tasked to deploy BGP across a satellite link system to a small number of retail stores.
What must be done in order to successfully deploy BGP in this situation?
- A. manually configure static routes to back up BGP across the satellite link
- B. configure all the BGP peering sessions across the satellite links as EBGP
- C. set the BGP hold timer to under one second
- D. configure the initial window size, maximum MTU, and TCP keepalive parameters
Answer: D
Explanation:
Section: (none)
Explanation/Reference:
NEW QUESTION 51
Which OSPF design consideration with regards to simplicity and address presentation must be considered when connecting two layer 3 switches directly using 10GBASE-T cabling and forming an OSPF neighbour adjacency?
- A. The OSPF network type must be set to point-to-point.
- B. An OSPF neighbor adjacency formed over loopback interfaces must be placed in Area 0
- C. The OSPF hello and dead timers must be tuned to detect failures as quickly as possible.
- D. Mesh groups must be included in the design
- E. The OSPF network type must be set to point-to-multipoint
Answer: C
Explanation:
Explanation
https://blog.ine.com/2010/06/02/ospf-fast-convergenc
https://core.ac.uk/download/pdf/234686485.pdf
NEW QUESTION 52 
Refer to the exhibit. This OSPF network has just been deployed with four areas, but the hub and spoke area frequently flaps you must fix this design failure which two reasons describe why the implementation of link-state summarization will minimize the effect of the instability in this network? (Choose two)
- A. It minimizes the number of prefixes that are advertised to other areas.
- B. It allows for a more scalable network.
- C. It separates the data center area from the hub-and-spoke areas.
- D. It lowers CPU utilization on ABR routers.
- E. It runs a partial SPF on the campus area when any link of the hub-and-spoke flaps.
Answer: C,E
Explanation:
Explanation
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2016/pdf/BRKRST-2337.pdf
NEW QUESTION 53
A financial services company runs HSRP at the edge of its network to allow for redundancy for the default gateway for its servers. The CTO of the company is concerned that the failover time for HSRP is too slow and a different mechanism should be used. The network engineer disagrees and believes that HSRP can provide the required fast down detection and failover for the edge of the network. Which option is the fastest down detection and failover solution for this HSRP environment?
- A. Implement HSRP preemption.
- B. Limit the Layer 2 broadcast domain.
- C. Decrease the HSRP timers.
- D. Migrate from IEEE 802.1D to 802.1w.
- E. Implement BFD.
Answer: E
Explanation:
Explanation/Reference:
Explanation:
NEW QUESTION 54
DRAG DROP
Answer:
Explanation:
NEW QUESTION 55
You are designing a WAN network solution with EIGRP based on VPLS. The interface speed is 10 Mb/s, but the access rate of the WAN connection is 256 Kb/s. What should you include in the network design, in order to avoid potential issues with EIGRP?
- A. Set the interface bandwidth to match the access rate.
- B. Tag outbound EIGRP traffic and have the WAN provider add it to the priority queue.
- C. Limit EIGRP traffic to the access rate with a policer.
- D. Limit traffic to theaccess rate with interface traffic shaping.
Answer: A
Explanation:
Explanation/Reference:
Explanation:
NEW QUESTION 56
You have been hired to redesign a network due to issues with congestion How will a router function if the QoS mechanism of congestion avoidance is integrated into the existing network design?
- A. The router handles the possible build-up of congestion by using WRED
- B. The router marks packets based on certain characteristics by using PBR
- C. The router handles the overflow of traffic by using FIFO.
- D. The router forces inbound and outbound traffic to stay within a defined profile by using rate limiting.
- E. The router separates packets based on certain characteristics by using NBAR.
Answer: A
Explanation:
NEW QUESTION 57
A new video multicast application is deployed in the network. The application team wants to use the 239.0.0.1 multicast group to stream the video to users. They want to know if this choice will impact the existing multicast design. What impact will their choice have on the existing multicast design?
- A. Because 239.0.0.1 is a private multicast range, a flood of PIM packets that have to be processed by the CPU and hosts will be sent by the routers in the network.
- B. Because 239.0.0.1 is a private multicast range, the rendezvous point has to send out constant group updates that will have to be processed by the CPU and hosts.
- C. The 239.0.0.1 group address maps to a system MAC address, and all multicast traffic will have to be sent to the CPU and flooded out all ports.
- D. The multicast application sends too many packets into the network and the network infrastructure drops packets.
Answer: B
NEW QUESTION 58
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 flow-label bits into the Exp field
- B. map IP precedence bits into the DSCP field
- C. map DSCP bits into the Exp field
- D. map IP CoS bits into the IP Precedence field
- E. map IP ToS bits into the Exp field
Answer: C
Explanation:
Explanation/Reference:
72
NEW QUESTION 59
Refer to the exhibit.
This new OSPF network has four areas, but the hub-and-spoke area experiences frequent flapping. You must fix this design failure. Which two mechanisms can you use to isolate the data center area from the hub-and-spoke area without losing IP connectivity? (Choose two.)
- A. Deploy a prefix summarization on router D.
- B. Use OSPF distribute-list filtering on router A.
- C. Convert the DC area to EIGRP protocol.
- D. Make the DC area totally stub.
- E. Make the DC area an NSSA.
Answer: A,D
NEW QUESTION 60
Which two conditions must be met for EIGRP to maintain an alternate loop-free path to a remote network?
(Choose two)
- A. The Reported Distance from a successor is lower than the local Feasible Distance
- B. The feasibility condition do not need to be met
- C. The Reported Distance from a successor is higher than the local Feasible Distance
- D. The feasible Distance from a successor is lower than the local Reported Distance
- E. A feasible successor must be present
Answer: A,E
NEW QUESTION 61
ACME Corporation is integrating IPv6 into their network, which relies heavily on multicast distribution of data. Which two IPv6 integration technologies support IPv6 multicast? (Choose two.)
- A. dual stack
- B. IPv6INIP
- C. ISATAP
- D. 6PE
- E. 6VPE
- F. 6to4
Answer: A,B
NEW QUESTION 62
Refer to the exhibit.
In this design, which technology would provide for the best use of resources to provide end-to-end Layer 2 connectivity?
- A. PAgP
- B. LACP
- C. Multichassis EtherChannel
- D. MSTP
Answer: C
NEW QUESTION 63
Which two are IoT sensor-specific constraints? (Choose two.)
- A. the amount of devices
- B. memory
- C. processing power
- D. standard transportprotocols
- E. cooling
Answer: B,C
Explanation:
Section: Evolving Technologies
Explanation/Reference:
NEW QUESTION 64
You are designing a FabricPath network that connects to a spine-and-leaf topology using Layer 2 IS-IS as the IGP. The solution should be able to detect changes in the network topology and calculate loop-free paths to other nodes in the network that are being used as top-of-rack switches.
Which four options are characteristics of this FabricPath design solution? (Choose four.)
- A. The interfaces in a FabricPath network run only the FabricPath Layer 2 IS-IS protocol with FTags disabled.
- B. FabricPath Layer 2 IS-IS uses the standard IS-IS functionality to populate up to 16 routes for a given destination switch.
- C. To use the basic FabricPathfunctionality, you must configure IS-IS on every interface between the leaf- and-spine switches.
- D. The FabricPath domain should be replaced because it does not run STP.
- E. Each switch computes its shortest path to every other switch in the network using the SPFalgorithm.
- F. This path is used for forwarding unicast FabricPath frames.
- G. The switch operating system uses multiple equal-cost, parallel links that provide ECMP.
Answer: B,E,F,G
Explanation:
Explanation/Reference:
Explanation:
The software sends hello packets on the FabricPath core ports to form adjacencies. After the software forms IS-IS adjacencies, the FabricPath unicast traffic uses the equal cost multipath(ECMP) feature of Layer 2 IS-IS to forward traffic. ECMP provides up to 16 paths for unicast traffic.
FabricPath Layer 2 IS-IS is based on the standard IS-IS protocol with the following extensions for the FabricPath environment:
FabricPath has a single IS-ISarea with no hierarchical Layer 1/Layer 2 routing as prescribed within the
IS-IS standard. All switches within the FabricPath network are in a single Layer 1 area.
The switch uses a MAC address that is different from the MAC address used for Layer 3 IS-
ISinstances.
The software adds a new sub-TLV that carries switch ID information, which is not in standard IS-IS.
This feature allows Layer 2 information to be exchanged through the existing IS-IS protocol implementation.
Each switch computes its shortestpath to every other switch in the networkusing the shortest-path first
(SPF) algorithm. This path is used for forwarding unicast FabricPath frames. FabricPath Layer 2 IS-IS uses the standard IS-IS functionality to populate up to 16 routes for a given destination switch. The software uses multiple equal-cost available parallel links that provide ECMP.
FabricPath IS-IS introduces certain modifications to the standard IS-IS in order to support the
construction of broadcast and multicast trees (identified by the FTags). Specifically, using FabricPath, the software constructs two loop-free trees for forwarding multidestination traffic.
References:
NEW QUESTION 65
Refer to the exhibit.
When designing an MPLS-based LAN extension between DC-1 and DC-2, what are three advantages of deploying VSS? (Choose three.)
- A. native VSS and MEC failover without using scripts
- B. limited VLAN-based VPLS traffic hashing
- C. required to configure VPLS
- D. sub-second failover
- E. Layers 2, 3, and 4 flow-based load balancing
- F. failover time depends on Cisco IOS EEM and STP convergence
Answer: A,D,E
NEW QUESTION 66
As part of a new network design, you are helping the Network Management Team to develop a proactive report to identify places in the network where problems may happen. The network management tool can poll the network devices only via SNMP GET operations. Which two threshold-crossing metrics should you include in this report? (Choose two.)
- A. link bandwidth utilization
- B. CPU utilization
- C. IP reachability
- D. energy consumption
- E. packet loss
- F. heat dissipation
Answer: A,B
NEW QUESTION 67
Refer to the exhibit.
Company A is running a single-area OSPF, and Company B is running RIP as the IGP with no overlapping IP address spaces. Company A has just acquired Company B and both networks must be merged. Which three design components are recommended to guarantee connectivity and redundancy between the two networks? (Choose three.)
- A. Implement an ACL on Router A and Router B to prevent OSPF external routes from being installed in the OSPF database.
- B. Enable mutual redistribution between OSPF and RIP on one border router.
- C. Filter external routes on Router A and Router B based on route tags.
- D. Increase the administrative distance to 130 for the OSPF external prefixes on Router A and Router B.
- E. Enable mutual redistribution between OSPF and RIP on Router A and Router B using route tags.
Answer: C,D,E
NEW QUESTION 68
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