最新的Cisco 350-501免費考試真題

問題1

Refer to the exhibit. ISP A provides MPLS L3VPN service to customer A with BGP as the external routing protocol. Customer A has just opened a new branch office in London and requested the service provider to implement lossless service between its two offices. The LDP is enabled over the MPLS backbone and label exchange is working normally. Which action must the ISP engineering team take to enable the service?

A. Configure IGP and redistribute the route from BGP.

B. Configure IGP LDP synchronization

C. Configure BGP address family VPNv4.

D. Configure LDP and redistribute the route from EIGRP.

正確答案: B

問題2

Which statement about the Cisco MPLS TE forwarding adjacency feature is true?

A. It enables the headend and tailend routers to establish a bidirectional tunnel

B. It enables the MPLS core to use EIGRP as the routing protocol

C. It enables the Cisco MPLS TE tunnel to be advertised into the running IGP.

D. It enables the tailend router to advertise routes to the headend router over the tunnel

正確答案: C

說明：（僅 Fast2test 成員可見）

問題3

An engineer must extend Layer 2 Between two campus sites connected through an MPLS backbone that encapsulates Layer 2 and Layer 3 data.
Which action must the engineer perform on the routers to accomplish this task?

A. Configure Cisco MPLS TE for use with E-TREE.

B. Configure a pseudowire for E-LINE.

C. Configure a EtherChannel for E-LAN.

D. Configure QoS for MPLS and E-ACCESS

正確答案: B

問題4

Refer to the exhibit. CE1 and CE2 require connectivity to the internet through the ISP connected to PE3. What should an engineer configure to complete this task?

A. CE1 and CE2 must be configured to use a static default route with a next-hop of PE3 to reach internet routes.

B. PE1 must be configured with an import route target in the CE1 VRF that matches the export route target for the internet VRF on PE3.

C. CE1 and CE2 must be configured with a route distinguisher in the PE1 VRF that dynamically imports the route from the internet.

D. PE2 must be configured to serve as a route reflector for PE3 routes learned from the internet. PE2 then shares the routes with CE1 and CE2.

正確答案: D

問題5

What is the characteristic of the TI-LFA?

A. It applies on the area and instance and makes all the interfaces inherit the configuration

B. It applies only on the instance and makes all the interfaces inherit the configuration

C. It guarantees a loop-free path for all areas configured in OSPF

D. It guarantees a loop-free path for all interfaces in the OSPF super backbone

正確答案: A

說明：（僅 Fast2test 成員可見）

問題6

Drag and Drop Question
Drag and drop the descriptions from the left onto the corresponding OS types on the right.

正確答案:

問題7

Refer lo the exhibit. An engineer working for private Service Provider with employee id:
3948:11:613 is configuring the BGPsec framework.
Which two conditions must the engineer take into account? (Choose two.)

A. In BGPsec, route advertisements are not given an expiration time by the originator of the route.

B. The BGPsec framework secures the AS path.

C. Private keys are pan of the router key pair used to sign route updates.

D. In BGPsec. all route advertisements are given an expiry time by the originator of the route.

E. BGPsec uses iPsec tunnel for security.

正確答案: B,D

說明：（僅 Fast2test 成員可見）

問題8

How does TACACS+ facilitate secure connections for user access to network routers?

A. The user's end device uses CHAP to securely query the network access server to authenticate the user via the TACACS+ protocol.

B. The user provides a password over a secure connection to the TACACS+ server for authorization.

C. The network access server communicates securely with the router via the TACACS+ protocol to authorize Telnet access by the user to specific parts of a router.

D. The network access server communicates securely with a TACACS+ daemon to authenticate the user.

正確答案: D

說明：（僅 Fast2test 成員可見）

問題9

Refer to the exhibit. A network engineer is implementing iBGP and eBGP between AS 600 and AS 500 with these requirements:
- R2 must establish eBGP peering on 192.168.3,0/30 with R5 for sending
unicast and multicast traffic.
- R2 must wait for 30 seconds before sending BGP updates to R5 for
multicast traffic.
Which action must be taken on R2 to meet the requirement?

A. Configure advertisement-interval 30 in address-family ipv4 multicast.

B. Apply timers bgp 30 in address-family ipv4 unicast.

C. Configure advertisement-interval 30 in address-family ipv4 unicast.

D. Apply timers bgp 30 in address-family ipv4 multicast.

正確答案: A

說明：（僅 Fast2test 成員可見）

問題10

Refer to the exhibit. LDP peering between routers R1 and R2 is dropped when the link between R1 and R2 is taken offline. However, LDP peering between R2 and R3 stays up when the link between R2 and R3 is taken offline. Which action allows MPLS traffic forwarding to continue normally if the link between R1 and R2 goes down?

A. Implement LDP Session Protection on R2.

B. Implement LDP Session Protection on R1.

C. Enable IGP and LDP Synchronization on R1.

D. Enable IGP and LDP Synchronization on R2.

正確答案: B

問題11

Which Cisco Software OS uses microkernel architecture?

A. IOS 12.3

B. IOS XR

C. IOS

D. IOS 15.1

正確答案: B

說明：（僅 Fast2test 成員可見）

問題12

Refer to the exhibit. ISP_A is about to launch a new internet service. ISP_A is already providing MPLS VPN Layer 3 services to Customer_A and Customer_B, which are connected to ISP_A via OSPF. A network engineer completed the BGP and VRF configurations on R2 to support the new internet service. Which additional action completes the launch?

A. Activate NAT CE in the customer VRFs on R1, R2, and R3

B. Enable the route-replicate command under the customer VRFs on R1 and R2

C. Implement the BGP routing protocol in the customer VRFs on R1 and R2

D. Import route-target 62:101 into the customer VRFs on R1 and R3

正確答案: D

說明：（僅 Fast2test 成員可見）

問題13

Refer to the exhibit. Which information is provided for traceback analysis when this configuration is applied?

A. IP sub flow cache

B. source interface

C. BGP version

D. packet size distribution

正確答案: A

說明：（僅 Fast2test 成員可見）

問題14

An engineer must apply an 802.1ad-compliant configuration to a new switchport with these requirements:
- The switchport must tag all traffic when it enters the port.
- The switchport is expected to provide the same level of service to
traffic from any customer VLAN.
Which configuration must the engineer use?

A. interface GigabitEthernet1/0/1
ethernet dot1ad nni
service instance 12
encapsulation dot1ad
bridge-domain 12

B. interface GigabitEthernet1/0/1
switchport mode trunk
switchport trunk encapsulation dot1q
encapsulation ISL
bridge-domain 12

C. interface GigabitEthernet1/0/1
ethernet dot1ad uni c-port
service instance 12
encapsulation dot1q
rewrite ingress tag push dot1ad 21 symmetric
bridge-domain 12

D. interface GigabitEthernet1/0/1
ethernet dot1ad uni s-port
service instance 12
encapsulation default
rewrite ingress tag push dot1ad 21 symmetric
bridge-domain 12

正確答案: D

說明：（僅 Fast2test 成員可見）

問題15

How does TI-LFA reduce packet loss in segment routing?

A. It enables path selection in SR-TE to support MPLS label allocation.

B. It establishes multiple labels per path using more than one IGP.

C. It calculates loop-free backup paths that are rapidly implemented in case of a link failure.

D. It determines which link to use when load balancing to prevent packet fragmentation loss.

正確答案: C

說明：（僅 Fast2test 成員可見）

最新的Cisco Implementing and Operating Cisco Service Provider Network Core Technologies - 350-501免費考試真題

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