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Cisco 350-501 Exam
Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) (Page 13 )

Updated On: 15-Feb-2026
Page 13 of 81
PDF with 547 Questions

Refer to the exhibit. Router R1 and its peer R2 reside on the same subnet in the network. If an engineer implements this configuration to R1, how does it make connections to R2?

  1. R1 establishes TCP connections that are authenticated with a clear-text password.
  2. R1 establishes UDP connections that are authenticated with an MD5 password.
  3. R1 establishes UDP connections that are authenticated with a clear-text password.
  4. R1 establishes TCP connections that are authenticated with an MD5 password.

Answer(s): D



Refer to the exhibit. Which two statements about the IS-IS topology are true? (Choose two.)

  1. R1 and R4 are Level 2 neighbors.
  2. All four routers are operating as Level 1-2 routers.
  3. All four routers are operating as Level 2 routers only.
  4. All four routers are operating as Level 1 routers only.
  5. R1 and R2 are Level 2 neighbors.

Answer(s): A,B



Refer to the exhibits. R1 and R2 are directly connected and IS-IS routing has been enabled between R1 and R2. R1 generates the above log message periodically.


Based on this output, which statement is true?

  1. IS-IS neighbor authentication is failing for Level 2 PDUs only.
  2. IS-IS neighbor authentication is failing for Level 2 first and then for Level 1 PDUs.
  3. IS-IS neighbor authentication is failing for Level 1 and Level 2 PDUs.
  4. IS-IS neighbor authentication is failing for Level 1 PDUs only.

Answer(s): D



Which BGP attribute is used first when determining the best path?

  1. origin
  2. AS path
  3. local preference
  4. weight

Answer(s): D



Refer to the exhibit. An engineer wants to authenticate the OSPF neighbor between PE-A and PE-B using MD5.


Which command on PE-B successfully completes the configuration?

  1. PE-B(config-if)#ipospf message-digest-key 1 md5 44578611
    PE-B(config-if)#ipospf authentication null
  2. PE-B(config-if)#ipospf message-digest-key 1 md5 44578611
    PE-B(config-if)#ipospf authentication key-chain 44578611
  3. PE-B(config-if)#ipospf message-digest-key 1 md5 44568611
    PE-B(config-if)#ipospf authentication null
  4. PE-B(config-if)#ipospf message-digest-key 1 md5 44578611
    PE-B(config-if)#ipospf authentication message-digest

Answer(s): D






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