QUESTION 81
Which two steps can be taken to improve convergence in an OSPF network? (Choose two.)
A. Tune OSPF parameters.
B. Use Bidirectional Forwarding Detection.
C. Make all non-backbone areas stub areas.
D. Span the same IP network across multiple areas.
E. Merge all the areas into one backbone area.
Correct Answer: AB
QUESTION 82
An engineer needs a standards-driven YANG model to manage a multivendor network environment. Which model must the engineer choose?
A. OpenConfig
B. IETF
C. IEEE NETCONF
D. Native
Correct Answer: B
QUESTION 83
Which feature must be incorporated into the campus LAN design to enable Wake on LAN?
A. directed broadcasts on layer 3 devices
B. proxy ARP on layer 3 devices
C. dynamic ARP Inspection Snooping on layer 2 devices
D. DHCP Snooping on layer 2 devices
Correct Answer: A
QUESTION 84
A large chain of stores currently uses MPLS-based T1 lines to connect their stores to their data center. An architect must design a new solution to improve availability and reduce costs while keeping these considerations in mind:
1. The company uses multicast to deliver training to the stores.
2. The company uses dynamic routing protocols and has implemented QoS.
3. To simplify deployments, tunnels should be created dynamically on the hub when additional stores open.
Which solution should be included in this design?
A. IPsec
B. DMVPN
C. VPLS
D. GET VPN
Correct Answer: B
QUESTION 85
An engineer must design a solution to connect a customer to the Internet. The solution will include a Layer 3 circuit with a CIR of 50 Mbps from the service provider. The hand-off from the provider’s switch to the customer’s router is 1Gbps. Which solution should the engineer include to prevent potential issues with choppy voice traffic?
A. Implement hierarchical QoS with a parent shaping policy.
B. Reduce the bandwidth of the connection to the router.
C. Implement hierarchical QoS with a parent policing policy.
D. Add a bandwidth statement to the router interface.
Correct Answer: A
QUESTION 86
How are wireless endpoints registered in the HTDB in a Cisco SD-Access architecture?
A. Wireless endpoints register with the border node that updates the HTDB.
B. Fabric APs update the HTDB with the clients EID and RLOC.
C. Fabric WLCs update the HTDB as new clients connect to the wireless network.
D. The fabric edge updates the HTDB based on CAPPWAP messaging from the AP.
Correct Answer: C
QUESTION 87
An architect is designing a connectivity solution for a customer’s two small branch offices. The customer wants a cost-effective design, no routing overhead, and some down time during the year is acceptable. Which connectivity solution must the architect choose?
A. dual-homed
B. single-homed
C. dual multihomed
D. single multihomed
Correct Answer: B
QUESTION 88
An engineer is designing a networking solution to allow two hosts to communicate-one host located within the company A network and the other within the company B network. The two companies have no other plans for future additional connections. Both companies want to use a single secure and encrypted internet connection, and the configuration must be as simple as possible. Which network solution must the engineer choose?
A. single DMVPN with EIGRP routing
B. routed IPsec tunnel with OSPF routing
C. policy-based IPsec tunnel with static routing
D. MPLS VPN provided service with BGP routing
Correct Answer: C
QUESTION 89
What does the fabric data plane leverage in SD-Access Architecture?
A. MAC-in-IP encapsulation method to transport of the Layer 2 frame
B. BGP protocol to advertise endpoint prefixes outside of the fabric
C. IS-IS protocol to exchange link-state routing information
D. LISP protocol to resolve endpoint-to-location mapping
Correct Answer: A
QUESTION 90
When differentiating between IETF, OpenConfig, and Cisco native YANG models, how does the use of containers differ?
A. OpenConfig uses one container for operational data and another container for configuration data, and IETF and Cisco native models use a single container for operational data and configuration data.
B. Cisco native models use one container for operational data and another container for configuration data, and OpenConfig and IETF use a single container for operational data and configuration data.
C. IETF and Cisco native models use one container for operational data and another container for configuration data, and OpenConfig uses a single container for operational data and configuration data.
D. IETF and Cisco native models use a single container for operational data and configuration data, and OpenConfig uses one container for operational data and another container for configuration data.
Correct Answer: C
QUESTION 91
Which WAN connectivity technology is optimal for edge computing compared to others and why?
A. Due to low cost, high bandwidth, low latency, and closest proximity to the edge of the network, Metro Ethernet is the optimal WAN technology for edge computing compared to MPLS, which offers native separation and security with close proximity to the data center.
B. Due to low latency, high bandwidth, and closest proximity to the user, L3 VPN MPLS connectivity is the optimal WAN technology for edge computing compared to 4G/5G connectivity, which offers native separation and security with close proximity to the data center.
C. Due to low latency, high bandwidth, and closest proximity to the user, 4G/5G connectivity is the optimal WAN technology for edge computing compared to L3 VPN MPLS connectivity, which offers native separation and security with close proximity to the data center.
D. Due to high bandwidth, separation and security, and proximity to the data center network, DWDM is the optimal WAN technology for edge computing compared to 4G/5G connectivity, which offers native separation and security with close proximity to the data center.
Correct Answer: C
QUESTION 92
An engineer must design a routing solution for a company that is single-homed to an ISP. The company’s goal is to run BGP between the CE and the PE devices. To support running BGP, the company obtained a public AS number and IP subnet from ARIN. Which solution must the engineer select?
A. The customer announces the public IP subnet to the ISP.
The ISP announces the BGP table to the customer
B. The customer announces the default route to the ISP.
The ISP announces the default route to the customer.
C. The customer announces the public IP subnet to the ISP.
The ISP announces the default route to the customer.
D. The ISP announces the customer public IP subnet.
The ISP announces the partial BGP table to the customer.
Correct Answer: C
QUESTION 93
Which feature minimizes TLOC connections and reduces strain on the vSmart controller in an SD-WAN architecture?
A. affinity
B. control-direction
C. control-connections
D. color
Correct Answer: A
QUESTION 94
In a multicast network, which condition must be met for an RPF check to be performed on the RP address?
A. The PIM router or multilayer switch has a shared-tree state.
B. The PIM DM device receives a multicast packet and has no directly connected members
C. The PIM router or multilayer switch has a source-tree state.
D. The PIM DM device receives a multicast packet and has no directly connected PIM neighbor.
Correct Answer: A
QUESTION 95
A network engineer must optimize a campus OSPF deployment. Currently, each time a type 1 or type 2 LSA is generated within an area, the OSPP process must recompute the entire SPT. Which solution improves the recomputation process?
A. BFD
B. iSPF
C. SPF
D. PRC
Correct Answer: B
QUESTION 96
Which control plane protocol is responsible for EID-to-RLOC mapping concerning SD-Access Architecture?
A. GBAC
B. LISP
C. CEF
D. VXLAN
Correct Answer: B
QUESTION 97
Which protocol is deployed through LAN automation to build node-to-node underlay adjacencies in SDA?
A. OSPF
B. VXLAN
C. LISP
D. IS-IS
Correct Answer: D
QUESTION 98
An engineer is designing a WAN solution for a customer with teams in different branch locations that need to communicate. The teams also need to access enterprise applications hosted in the data center and the cloud. The customer also must provide guests with connectivity to the internet only, and the internet gateway is located in the data center. Which solution must the engineer choose?
A. MPLS Layer 3 VPN with a separate VRF for each branch location
B. firewall placed in data center that filters any traffic from guests
C. MPLS Layer 3 VPN with one VRF for corporate access and a separate VRF for guests
D. WAN connectivity from a different service provider for guests
Correct Answer: C
QUESTION 99
Prior to establishing full-mesh IPsec tunnels in a typical Cisco SD-WAN deployment, which mechanism do WAN Edge routers use to exchange key information for data plane encryption?
A. They use IKEv2 when exchanging keys with each other.
B. They use vSmart controllers as key exchange servers
C. They use vBond as a key exchange server
D. They use vManage as a key exchange server.
Correct Answer: B
QUESTION 100
An engineer is designing a campus network with Cisco Catalyst 9500 switches in the aggregation layer. The design requires running nonblocking Layer 2 MEC from the aggregation layer to the access layer. The Catalyst switches are located on different campus floors for availability reasons and each access switch will contain a single VLAN. Which technology must the engineer choose for the aggregation switches in the design?
A. StackWise-480
B. StackWise Virtual
C. VSS
D. VPC
Correct Answer: B