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  5. Implementing and Operating Cisco Service Provider Network Core Technologies (350-501 SPCOR) Questions and Answers

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Viewing questions 21-30 out of questions
Questions # 21:

A network operator working for a private outsourcing company with an employee id: 4261:72:778 needs to limit the malicious traffic on their network. Which configuration must the engineer use to implement URPF loose mode on the GigabitEthernet0/1 interface?

Options:
A.

router(config)# interface gigabitethernet0/1

router(config-if)# ip address 192.168.200.1 255.255.255.0

router(config-if)# ip verify unicast source reachable-via any

router(config-if)# ipv6 address 2001:DB8:1::1/96

router(config-if)# ipv6 verify unicast source reachable-via any

B.

router(config)# interface gigabitethernet0/1

router(config-if)# ip address 192.168.200.1 255.255.255.0

router(config-if)# ip verify unicast source reachable-via rx

router(config-if)# ipv6 address 2001:DB8:1::1/96

router(config-if)# ipv6 verify unicast source reachable-via rx

C.

router(config)# interface gigabitethernet0/1

router(config if)# ip address 192.168.200.1 255.255.255.0

router(config-if)# ip verify unicast source reachable-via rx

router(config-if)# ipv6 address 2001:DB8:1::1/96

router(config-if)# ipv6 verify unicast source reachable-via any

D.

router(config)# interface gigabitethernet0/1

router(config-if)# ip address 192.168.200.1 255.255.255.0

router(config-if)# ip verify unicast source reachable-via any

router(config-if)# ipv6 address 2001:DB8:1::1/96

router(config-if)# ipv6 verify unicast source reachable-via rx

Expert Solution
Questions # 22:

Refer to the exhibit:

Question # 22

A network engineer is implementing a BGP routing policy.

Which effect of this configuration is true?

Options:
A.

All traffic that matches acl10 is allowed without any change to its local-preference

B.

All traffic that matches acl10 is dropped without any change to its local-preference

C.

If traffic matches acl10, it is allowed and its local-preference is set to 300

D.

All traffic is assigned a local-preference of 30O regardless of its destination

Expert Solution
Questions # 23:

Refer to the exhibit.

Question # 23

A network engineer must configure an LDP neighborship between two newly installed routers that are located in two different offices. Router 1 is the core router in the network and it has already established OSPF adjacency with router 2. On router 1 and router 2. interface fa0/0 is configured for BFD. Which additional configuration must the engineer apply to the two devices to meet the requirement?

Options:
A.

Router1(config)#int fa0/0 -

Router1(config-if)#mpls ldp autoconfig

Router2(config)#router ospf 1 -

Router2(config-router)#mpls ip

B.

Router1(config)#int fa0/0 -

Router1(config-if)#mpls ip -

Router1(config-if)#mpls ldp discovery transport-address interface

Router2(config)#int fa0/0 -

Router2(config-if)#mpls ip -

Router2(config-if)#mpls ldp discovery transport-address interface

C.

Route1(config)#int fa0/0 -

Router1(config-if)#mpls ldp autoconfig

Router1(config-if)#mpls ldp discovery interface

Router2(config)#router ospf 1 -

Router2(config-router)#mpls ldp autoconfig

Router2(config-if)#mpls ldp discovery interface

D.

Router1(config)#int fa0/0 -

Router1(config-if)#mpls ip -

Router2(config)#router ospf 1 -

Router2(config-router)#mpls ldp autoconfig

Expert Solution
Questions # 24:

An engineer a cisco MPLS tunnel to improve the streaming experience for the clients of a video -on-demand server. Which action must the engineer perform to configure extended discovery to support the MPLS LDP session between the headend and tailend routers?

Question # 24

Options:
A.

Option A

B.

Option B

C.

Option C

D.

Option D

Expert Solution
Questions # 25:

Question # 25

Refer to the exhibit an engineer working for a private telecommunication company with an employee Id: 4065:96:080 upgrades the WAN link between routers ASBR-101 and ASBR-201 to 1Gb by Installing a new physical connection between the Gi3 Interfaces. Which BGP attribute must the engineer configure on ASBR-201 so that the existing WAN link on Gi2 Is maintained as a backup?

Question # 25

Question # 25

Options:
A.

Option A

B.

Option B

C.

Option C

D.

Option D

Expert Solution
Questions # 26:

Which role does the Adjacency-SID sub-TLV extension perform in the IS-IS routing protocol?

Options:
A.

It is advertised within a TLV-24 (IS-IS Neighbor Adjacency Attribute) to label a specific adjacency between Level1 routers within one IS-IS area.

B.

It is advertised within TLV-136 (Extended IP Reachability) to label a specific node n the network.

C.

It is advertised within TLV-22 (Extended IS Reachability) to label a specific link in a segment routing domain.

D.

It is advertised within TLV-145 (IS-IS Prefix Reachability Information) to label host prefixes on loopback interfaces on Level 2 routers within one

Expert Solution
Questions # 27:

Question # 27

Refer to the exhibit A user is performing QoS marking on internet traffic and sending it with IPv4 and IPv6 headers on the provider edge device PE1. IPv4 traffic is classified with DSCP 4 and IPv6 traffic is classified with DSCP 6. Which action must the engineer take to begin implementing a QoS configuration on PE1 for the IPv6 traffic?

Options:
A.

Create an access list that includes any IPv6 traffic and apply it to CM-20.

B.

Create access list IPv6-match and configure match ip dscp 4 and match ip dscp 6 in class maps CM-10 and CM-20.

C.

Configure match ip dscp 4 in class map CM-10 and match ip dscp 6 in class map CM-20.

D.

Create access list IPv6-filter and remove DSCP value 4 and 6 in class maps CM-10 and CM-20.

Expert Solution
Questions # 28:

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?

Options:
A.

Configure a EtherChannel for E-LAN.

B.

Configure a pseudowire for E-LINE.

C.

Configure Cisco MPLS TE for use with E-TREE.

D.

Configure QoS for MPLS and E-ACCESS

Expert Solution
Questions # 29:

Refer to the exhibit.

Question # 29

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:

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

• 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?

Options:
A.

350-501 Question 29 Option 1Text Description automatically generated

B.

29Text Description automatically generated

C.

29Text Description automatically generated

D.

29Text, letter Description automatically generated

Expert Solution
Questions # 30:

Question # 30

Refer to the exhibit An engineer at ISP C is configuring a new interconnection with ISPs A and B using the BGP protocol After the initial configuration the engineer noticed high memory usage and an abnormally large LIB table on router R2 Which two actions must the engineer take on R2 to minimize memory usage? (Choose two.)

Options:
A.

Configure Extended ACL 101 with accepted prefixes.

B.

Confiure the mpls idp neighbor 11.11.11.11 labels accept1 command.

C.

Configure Standard ACL 1 with accepted prefixes.

D.

Configure the mpls idp neighbor 1.1.1.1 labels accept 101 command.

E.

Configure the mpls idp neighbor 21.21.21.21 labels accept 101 command.

Expert Solution
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