CAS-001 · Question #311
CAS-001 Question #311: Real Exam Question with Answer & Explanation
The correct answer is A: Create presence groups, restrict IM protocols to the internal networks, encrypt remote devices,. Answer A is correct because it addresses all three key vectors of a unified communications deployment: (1) Presence groups restrict who can see user availability, limiting information leakage; (2) Restricting IM protocols to internal networks prevents unauthorized external IM con
Question
Options
- ACreate presence groups, restrict IM protocols to the internal networks, encrypt remote devices,
- BEnable discretionary email forwarding restrictions, utilize QoS and Secure RTP, allow external IM
- CSet presence to invisible by default, restrict IM to invite only, implement QoS on SIP and RTP traffic,
- DEstablish presence privacy groups, restrict all IM protocols, allow secure RTP on session border
Explanation
Answer A is correct because it addresses all three key vectors of a unified communications deployment: (1) Presence groups restrict who can see user availability, limiting information leakage; (2) Restricting IM protocols to internal networks prevents unauthorized external IM connections, which are a common data exfiltration vector; (3) Encrypting remote/mobile devices ensures that data on endpoints accessing the UC platform is protected if lost or stolen. Answer B is wrong because 'allowing external IM' introduces uncontrolled channels. Answer C is overly restrictive - invisible presence and invite-only IM would impair business operations. Answer D's 'restrict all IM protocols' would block legitimate business communications entirely, which is not a viable UC strategy.
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