Question 1

A customer uses OSPF and BGP in their network. Which solution will continue forwarding packets during a temporary failure of a P node?
A) Deploy MPLS TE
B) Enable BGP Flowspec
C) Enable NSF/GR for OSPF
D) Deploy IS-IS an IGP instead of OSPF

Accepted Answer

The answer of A customer uses OSPF and BGP in...

Question 2

You are designing a QoS solution for a large enterprise network that uses DMVPN. In which situation should the QoS pre-classify feature be used?
A) When your service provider requires the DSCP bits be set
B) When the QoS policy cannot be based on DSCP bits
C) When you are marking packets with the ToS bits
D) When you are marking packets with the DSCP bits

Accepted Answer

QoS pre-classify is used when the QoS policy cannot be based on DSCP bits because it allows classification of packets before they are encapsulated, which is necessary when the encapsulation would otherwise obscure the original packet headers.

Question 3

Video traffic is being distributed across a large WAN network. The video source originates from different parts of the multicast domain at different times. Which multicast technology provides optimal path selection between the receiver and the source for this multicast traffic?
A) Source Specific Multicast
B) PIM sparse mode
C) Bidirectional PIM
D) Any Source Multicast

Accepted Answer

Source Specific Multicast (SSM) provides optimal path selection by allowing receivers to specify the exact source they want to receive traffic from, thus ensuring the most efficient routing path between the source and the receiver.

Question 4

For which two reasons would you deploy an IDS sensor in promiscuous mode when designing a security solution? (Choose two.)
A) The solution stops malicious traffic from reaching its intended target
B) The solution allows denying packets inline
C) The solution is resistant to sensor failure
D) The solution allows for stream normalization
E) The solution allows for signature-based pattern matching

Accepted Answer

The answer of For which two reasons would you deploy...

Question 5

Today most of the enterprises are selecting container technologies that require integration with their existing data centers and infrastructure solutions. With which three factors do enterprises most commonly struggle to enable their current IT operations staff with? (Choose three.)
A) compliance
B) data security
C) performance and availability
D) cost avoidance
E) virtualization
F) data analytics
G) scalability

Accepted Answer

The answer of Today most of the enterprises are selecting...

Question 6

A network engineer confirms that STP is enabled on all switches in the network. An edge switch is not sending or receiving configuration BPDUs, although it appears that everything is functioning correctly in the network. Which design explanation is true?
A) Bridge Assurance is enabled on the port
B) Storm control broadcast is enabled on the port
C) BPDU Guard is enabled on the port
D) REP is enabled on the port

Accepted Answer

The answer of A network engineer confirms that STP is...

Question 7

You are redesigning an OSPF network that currently uses RFC 1918 Class A address space to optimize its convergence time. The entire network consists of point-to-point interfaces between routers. Which reason is the best reason to implement topology summarization in this network?
A) to optimize CEF entry allocation
B) to optimize RIB entry allocation
C) to reduce the number of neighbor relationships
D) to reduce link state database size

Accepted Answer

Topology summarization reduces the size of the link-state database by aggregating routes, which can help optimize convergence time by minimizing the amount of information that needs to be processed and exchanged during topology changes.

Question 8

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 routes 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) Use prefix lists on the distribution routers to control which routes are sent to the MPLS network
B) Configure the distribution routers to send a default route to the MPLS network
C) Configure null routes and aggregate routes for the prefixes in your network on the distribution routers
D) Configure the access routers to send a default route to the MPLS network
E) Summarize the routes on the MPLS WAN interfaces of the distribution routers

Accepted Answer

The answer of A large enterprise company is redesigning their...

Question 9

Which design consideration of policy-based routing is true?
A) It decreases failure detection time
B) It routes traffic destined to a set of users through different exit points
C) It uses RSVP to differentiate traffic flows, so queuing mechanisms can prioritize them
D) It can create microloops during network reconvergence

Accepted Answer

The answer of Which design consideration of policy-based routing is...

Question 10

Which two statements about QoS marking are true? (Choose two.)
A) Class-based marking occurs after packet classification
B) MPLS EXP and DSCP are Layer 2 marking fields
C) QoS marking establishes a trust boundary that scheduling tools later depend on
D) Shaping is one of the ways that packets can be remarked
E) 802.1Q/p CoS bits and IP Precedence are Layer 3 marking fields

Accepted Answer

Class-based marking occurs after packet classification, and QoS marking establishes a trust boundary that scheduling tools later depend on.

Question 11

Refer to the exhibit. The service provider ACME Internet just added a 100 Gbps peering in Paris to use as the default for inbound traffic from Very Big ISP. Which routing policy achieves the desired outcome? 
A) Apply an export policy in New York and Tokyo that adds a Weight attribute to routes send to Very Big ISP via Paris
B) Apply an export policy that only permits a default route in Brussels and Zurich
C) Use traffic engineering by injecting a preferred LocalPref attribute to routes advertised to Very Big ISP in Paris
D) Apply an export policy in Paris by applying a MED or Community attribute with a preference that Very Big ISP acts upon

Accepted Answer

The answer of Refer to the exhibit. The service provider...

Question 12

Refer to the exhibit. A new high availability DB server cluster is installed in the network. These two servers require high bandwidth and low latency Layer 2 connectivity for database replication. Which solution supports these requirements? 
A) Add two new links between SW1 and SW2 configured as LACP trunk with STP
B) Add two new links between SW1 and SW2 configured as REP segments 1 and 2, respectively
C) Add secondary links to REP segments 1 and 2
D) Add two new links between SW1 and SW2 configured as REP segment 3

Accepted Answer

The answer of Refer to the exhibit. A new high...

Question 13

Which two design characteristics of Resilient Ethernet Protocol on a Metro Ethernet infrastructure are true? (Choose two.)
A) Resilient Ethernet Protocol provides fast convergence on Layer 2 ring domains
B) Unidirectional Link Detection Protocol can be used in combination with Resilient Ethernet Protocol
C) Resilient Ethernet Protocol cannot load balance VLAN traffic across a ring
D) Resilient Ethernet and Spanning Tree Protocol can reside on the same switch and on the same port
E) Resilient Ethernet Protocol and Spanning Tree Protocol rings or domains can share a common link

Accepted Answer

Resilient Ethernet Protocol provides fast convergence on Layer 2 ring domains, and Unidirectional Link Detection Protocol can be used in combination with Resilient Ethernet Protocol.

Question 14

Refer to the exhibit. You are a network designer who is given these design requirements: Multicast services must be provided for Layer 3 VPN customers The same forwarding technology must be used as Layer 3 VPN unicast packets Replication of multicast traffic is not allowed on the ingress PE Which multicast VPN technology conforms to the design requirements?
A) multipoint-to-point LDP
B) MSDP
C) MLDP VPN
D) Rosen Draft using LDP

Accepted Answer

The answer of  Refer to the exhibit. You are...

Question 15

A protected DWDM circuit with disjoint fiber routes and guaranteed restoration times is ordered to connect two hub sites. Which BFD design consideration is true in relation to protected DWDM?
A) BFD failure detection must be longer than DWDM restoration time
B) BFD is incompatible with protected DWDM
C) BFD failure detection must be faster than DWDM restoration time
D) The BFD hello timer must match the DWDM circuit restoration time

Accepted Answer

BFD (Bidirectional Forwarding Detection) is used to detect faults in the path between two forwarding engines. For effective fault detection, BFD failure detection should be faster than the DWDM restoration time to ensure quick rerouting and minimal disruption.

Question 16

Which three characteristics of the Single Tier and the Dual Tier Headend Architectures for DMVPN designs are true? (Choose three.)
A) A Dual Tier Headend Architecture is required when using dual cloud topologies with spoke-to-spoke connectivity
B) In a Dual Tier Headend Architecture, the GRE tunnel endpoint and encryption endpoint functionalities are on different routers
C) A Single Tier Headend Architecture is required when using dual cloud topologies with spoke-to-spoke connectivity
D) In a Single Tier Headend Architecture, the GRE tunnel endpoint and encryption endpoint functionalities are on the same router
E) In a Single Tier Headend Architecture, there is a single headend router per DMVPN cloud topology
F) In a Dual Tier Headend Architecture, there are two different headend routers per DMVPN cloud for high availability purposes

Accepted Answer

The answer of Which three characteristics of the Single Tier...

Question 17

Which BFD design consideration is true?
A) BFD can support only one session per protocol on the same link
B) BFD cannot be used with RSVP-TE backup tunnels
C) BFD does not support sessions over MPLS LSPs
D) BFD echo mode may reduce convergence time

Accepted Answer

BFD echo mode can help in reducing convergence time by quickly detecting failures in the network, allowing for faster switchover to backup paths.

Question 18

Refer to the exhibit. You are designing a data center migration from one location to another, which requires all existing VLANs spanned to the new data center to maintain host IP addressing. Two temporary Gigabit Ethernet circuits are available to extend the VLANs at Layer 2 to the new location as trunk links between core switches in each location. Which solution provides maximum fault isolation between the two data centers to ensure that a Layer 2 issue in one data center does not affect the other during the migration? 
A) Perform BPDU filtering over the trunk links
B) Run the dual links as multichassis EtherChannel trunk between core switches within each location
C) Enable root guard on the trunk ports at the legacy DC site
D) Perform HSRP filtering over the trunk links to maintain active HSRP gateways within each data center for each VLAN

Accepted Answer

The answer of Refer to the exhibit. You are designing...

Question 19

Which three network management requirements are common practices in a network design? (Choose three.)
A) Ensure that all network devices have their clocks synchronized
B) Look at inconsistent and bursty KPIs such as CPU utilization and interface utilization
C) Collect RMON poll information for future regression analysis
D) Validate data plane health, application, and services availability with synthetic traffic
E) Capture ingress and egress flow-based packets, while avoiding duplication of flows
F) Collect SNMP poll information for future regression analysis

Accepted Answer

The answer of Which three network management requirements are common...

Question 20

You have been asked to design a remote access VPN solution to support up to 2000 devices. You must ensure that only corporate assets are allowed to connect to the VPN, and users must authenticate to gain access based on their user role. Users must use a password that they are already using to access existing applications. A user may not always use the same device to access the VPN. Which two options combined meet the requirement? (Choose two.)
A) Deploy certificates that are unique to each device
B) Deploy a SSL VPN solution
C) Deploy an IPsec VPN solution
D) Use local usernames and passwords on the VPN device
E) Deploy a central authentication directory that users can be authenticated and authorized against
F) Deploy certificates that are unique to each user

Accepted Answer

The answer of You have been asked to design a...

Exam 44: Deploying Cisco Unified Contact Center Express

A customer uses OSPF and BGP in their network. Which solution will continue forwarding packets during a temporary failure of a P node?

You are designing a QoS solution for a large enterprise network that uses DMVPN. In which situation should the QoS pre-classify feature be used?

Video traffic is being distributed across a large WAN network. The video source originates from different parts of the multicast domain at different times. Which multicast technology provides optimal path selection between the receiver and the source for this multicast traffic?

For which two reasons would you deploy an IDS sensor in promiscuous mode when designing a security solution? (Choose two.)

Today most of the enterprises are selecting container technologies that require integration with their existing data centers and infrastructure solutions. With which three factors do enterprises most commonly struggle to enable their current IT operations staff with? (Choose three.)

A network engineer confirms that STP is enabled on all switches in the network. An edge switch is not sending or receiving configuration BPDUs, although it appears that everything is functioning correctly in the network. Which design explanation is true?

You are redesigning an OSPF network that currently uses RFC 1918 Class A address space to optimize its convergence time. The entire network consists of point-to-point interfaces between routers. Which reason is the best reason to implement topology summarization in this network?

Which design consideration of policy-based routing is true?

Which two statements about QoS marking are true? (Choose two.)

Refer to the exhibit. The service provider ACME Internet just added a 100 Gbps peering in Paris to use as the default for inbound traffic from Very Big ISP. Which routing policy achieves the desired outcome?

Refer to the exhibit. A new high availability DB server cluster is installed in the network. These two servers require high bandwidth and low latency Layer 2 connectivity for database replication. Which solution supports these requirements?

Which two design characteristics of Resilient Ethernet Protocol on a Metro Ethernet infrastructure are true? (Choose two.)

A protected DWDM circuit with disjoint fiber routes and guaranteed restoration times is ordered to connect two hub sites. Which BFD design consideration is true in relation to protected DWDM?

Which three characteristics of the Single Tier and the Dual Tier Headend Architectures for DMVPN designs are true? (Choose three.)

Which BFD design consideration is true?

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