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Exam 300-820 topic 1 question 10 discussion

Actual exam question from Cisco's 300-820
Question #: 10
Topic #: 1
[All 300-820 Questions]

An organization with a domain name of example.com.
Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)

  • A. _sips._tcp.example.com
  • B. _sips._udp.example.com
  • C. _h323ls._udp.example com
  • D. _h323ls._tcp.example.com
  • E. _collab-edge._tls.example.com
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Suggested Answer: AC 🗳️
by khader09 at Oct. 14, 2020, 1:22 p.m.

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Collabinski
9 months, 4 weeks ago
Selected Answer: AC
The format of DNS SRV queries for sip (RFC 3263) and H.323 used by Expressway are: • _sips._tcp.<fully.qualified.domain> • _sip._tcp.<fully.qualified.domain> • _sip._udp.<fully.qualified.domain> - not recommended for video calls, only use for audio-only calls • _h323ls._udp.<fully.qualified.domain> - for UDP location (RAS) signaling, such as LRQ • _h323cs._tcp.<fully.qualified.domain> - for H.323 call signaling https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X12-6/exwy_b_cluster-creation-maintenance-deployment-guide/exwy_b_cluster-creation-maintenance-deployment-guide_chapter_01010.html#concept_F5323B1B7F8CED8A4ACEE5D70EC43C4B
upvoted 1 times
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msully
1 year, 5 months ago
Selected Answer: AC
A and C. Official cert guide page 204
upvoted 1 times
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chamba87
2 years, 8 months ago
The format of DNS SRV queries for sip (RFC 3263) and H.323 used by Expressway are: _sips._tcp.<fully.qualified.domain> _sip._tcp.<fully.qualified.domain> _sip._udp.<fully.qualified.domain> - not recommended for video calls, only use for audio-only calls _h323ls._udp.<fully.qualified.domain> - for UDP location (RAS) signaling, such as LRQ _h323cs._tcp.<fully.qualified.domain> - for H.323 call signaling The format of DNS SRV queries for sip (RFC 3263) and H.323 typically used by an endpoint are: _sips._tcp.<fully.qualified.domain> _sip._tcp.<fully.qualified.domain> _sip._udp.<fully.qualified.domain> - not recommended for video calls, only use for audio-only calls _h323ls._udp.<fully.qualified.domain> - for UDP location (RAS) signaling, such as LRQ _h323cs._tcp.<fully.qualified.domain> - for H.323 call signaling _h323rs._udp.<fully.qualified.domain> - for H.323 registrations
upvoted 1 times
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Mark03
2 years, 9 months ago
That is correct, A & C
upvoted 1 times
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khader09
3 years, 1 month ago
A and C are correct
upvoted 3 times
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