Cisco 350-501 Online Practice Questions and Exam Preparation

Cisco 350-501 Online Questions & Answers

• Question 121:

  A network engineer has a requirement to configure IP flow exporting using standard protocols on a cisco IOS XE device. Which configuration achieves this goal?

  A. flow exporter EXPORTERdestination 10.1.1.1export-protocol version 9transport udp 90
  B. flow exporter EXPORTERdestination 10.1.1.1source Loopback 0transport udp 90
  C. flow exporter EXPORTERdestination 10.1.1.1source Loopback 0transport udp 90version ipfix
  D. flow exporter EXPORTERdestination 10.1.1.1export-protocol ipfixtransport udp 90
  D. flow exporter EXPORTERdestination 10.1.1.1export-protocol ipfixtransport udp 90

  ---

  Explanation

• Question 122:

  Which utility must be used to locate MPLS faults?

  A. QoS
  B. MPLS LSP ping
  C. MPLStraceroute
  D. EEM
  C. MPLStraceroute

  ---

  Explanation

• Question 123:

  Which fact must a network engineer consider when planning to deploy RSVP-TE FRR?

  A. PLR prefers FRR NHOP backup tunnels over NNHOP tunnels
  B. FRR protects MPLS LDP and RSVP-TE LSPs
  C. The FRR backup tunnel reserves the total bandwidth of all protected tunnels
  D. PLR prefers FRR NNHOP backup tunnels over NHOP tunnels
  B. FRR protects MPLS LDP and RSVP-TE LSPs

  ---

  Explanation

• Question 124:

  What is a primary benefit of IPoATM or MPLS over ATM backbone service provider networks?

  A. dedicated circuits
  B. variable-length packets
  C. isochronous system
  D. fixed-length cells
  B. variable-length packets

  ---

  Explanation

  IP over ATM (IPoATM) and MPLS offer significant benefits over traditional ATM backbone networks, primarily due to their support for variable-length packets. Unlike ATM, which uses fixed-length cells, IPoATM and MPLS can handle packets of varying sizes, making them more efficient for carrying IP traffic. This efficiency comes from reduced overhead and better bandwidth utilization, as IP packets don't need to be segmented and reassembled, avoiding the cell-padding issues inherent in ATM's fixed-size cells.

• Question 125:

  A company is expanding its existing office space to a new floor of the building, and the networking team is installing a new set of switches. The new switches are running IGMPv2, and the engineers configured them for VLAN10 only. The rest of the existing network includes numerous Layer 2 switches in multiple other VLANs, all running IGMPv3. Which additional task must the team perform when deploying the new switches so that traffic is switched correctly through the entire network?

  A. Configure the new switches to use IGMPv3 on all VLANs on the network.
  B. Configure all switches on the network to support IGMPv2 and IGMPv3 on all VLANs on the network.
  C. Configure the new switches to use IGMPv3 on VLAN10 only.
  D. Configure all switches on the network to support IGMPv2 and IGMPv3 on VLAN10 only.
  C. Configure the new switches to use IGMPv3 on VLAN10 only.

  ---

  Explanation

• Question 126:

  Refer to the exhibit.

  

  MPLS is configured within the network. The routers use OSPF to exchange routing information.

  Hosts that are connected to routers R1 and R3 use routers R2 and R4 to access servers that run a variety of intranet applications.

  A network engineer must ensure that R1 and R3 maintain an LDP session between them to support the flow of traffic between hosts and servers in case of failure on the path between R1 and R3.

  Which task should the engineer perform to provide LDP bindings in case of failure on the path between R1 and R3?

  A. Implement session protection to send targeted hellos between R1 and R3.
  B. Implement multicast in the network to share data between hosts and servers without targeted routing.
  C. Implement LDP sync on the four devices to give MPLS and OSPF the ability to maintain continuous uptime.
  D. Implement BFD to monitor and detect link failures between R1 and R3.
  A. Implement session protection to send targeted hellos between R1 and R3.

  ---

  Explanation

• Question 127:

  Refer to the exhibit.

  

  The customer that owns the CE-1, CE-2, and CE-3 routers purchased point-to-point E-Line services from the Carrier Ethernet provider. The service provider is delivering multiplexed UNI at the customer HQ location on PE-1 and untagged UNIs at the PE-2 and PE-3 locations. Additionally, the customer provided these VLAN to EVC mapping requirements:

  1. EVC 1 between CE-1 and CE-2 must be provisioned with C-VLAN 12 at the HQ location.

  2. EVC 2 between CE-1 and CE-3 must be provisioned with C-VLAN 13 at the HQ location.

  Which configuration must the network engineer implement on the PE routers to provide end-to-end Carrier Ethernet service to the customer?

  

  

  

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  D. Option D

  ---

  Explanation

• Question 128:

  Refer to the exhibit.

  Router1:

  Interface gigabitethernet0/1 ip address 192.168.1.1 255.255.255.0 ip ospf hello0interval 1

  router ospf 1 network 192.168.1.0 0.0.0.255 area 1

  Router2:

  Interface gigabitethernet0/1 ip address 192.168.1.2 255.255.255.0 ip ospf hello0interval 2

  router ospf 1 network 192.168.1.2 0.0.0.0 area 1

  What reestablishes the OSPF neighbor relationship between Router 1 and Router 2?

  A. authentication is added to the configuration
  B. correct wildcard mask is used on Router 2
  C. OSPF process IDs match
  D. hello intervals match
  D. hello intervals match

  ---

  Explanation

  In OSPF (Open Shortest Path First), the Hello interval is a critical parameter for OSPF neighbor formation. It defines the frequency at which Hello packets are sent on an OSPF interface. For two OSPF routers to become neighbors, they must have matching Hello and Dead intervals. In the provided configuration, Router 1 has a hello-interval of 1 second while Router 2 has a hello-interval of 2 seconds. Adjusting them to match will reestablish the OSPF neighbor relationship between Router 1 and Router 2.

  References: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) - Cisco

• Question 129:

  Which service is a VNF role?

  A. Network
  B. Firewall
  C. Storage
  D. Compute
  B. Firewall

  ---

  Explanation

  A Virtual Network Function (VNF) role refers to a network function that is executed in software and can be deployed on a Network Functions Virtualization Infrastructure (NFVI). A firewall serves as a VNF role because it performs network functions, such as filtering traffic and security management, in software form rather than as a physical device.

  Implementing and Operating Cisco Service Provider Network Core Technologies source documents or study guide.

• Question 130:

  Refer to the exhibit.

  

  OSPF is running in the network, which is segmented into three areas. MPLS is enabled on all routers to support Layer 3 VPN. The network architect is concerned about potential packet loss when new OSPF adjacencies form.

  Which two tasks should the architect perform to implement MPLS LDP synchronization? (Choose two.)

  A. Enable MPLS functionality on all interfaces that are involved in MPLS.
  B. Configure OSPF to use the same router ID for each router that is involved in MPLS.
  C. Enable LDP sync under the OSPF process.
  D. Establish MPLS targeted sessions for connected LDP neighbors only.
  E. Establish a virtual link between the areas to support LDP sync between segments.
  B. Configure OSPF to use the same router ID for each router that is involved in MPLS.
  C. Enable LDP sync under the OSPF process.

  ---

  Explanation