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2021 Dec gefest 300-075:

Q81. Which three tests can you perform to verify redundancy in the customer environment? (Choose three.) 

A. Verify that all phones are registered to a second subscriber server. 

B. Verify that media resources fail over to a secondary subscriber server when the publisher fails. 

C. Verify that Cisco Unified IP phones running SCCP go into SRST mode when the WAN connection is disconnected. 

D. Verify that HSRP is active on the Cisco Unified Communications Manager subscriber servers. 

E. Verify that the H.323 redundant connection is active. 

F. Verify that SCCP fallback is configured in Cisco Unified Communications Manager. 

Answer: A,B,C 


Q82. Which statement about enrollment in the IP telephony PKI is true? (Source. Understanding Cisco IP Telephony Authentication and Encryption Fundamentals) 

A. CAPF enrollment supports the use of authentication strings. 

B. The CAPF itself has to enroll with the Cisco CTL client. 

C. LSCs are issued by the Cisco CTL client or by the CAPF. 

D. MICs are issued by the CAPF itself or by an external CA. 

Answer: A 

Explanation: 

Incorrect Answer: B, C, D 

The CAPF enrollment process is as follows: 

1. The IP phone generates its public and private key pairs. 

2. The IP phone downloads the certicate of the CAPF and uses it to establish a TLS session with the CAPF. 

3. The IP phone enrolls with the CAPF, sending its identity, its public key, and an optional authentication string. 

4. The CAPF issues a certicate for the IP phone signed with its private key. 

5. The CAPF sends the signed certicate to the IP phone. 

Link: http://my.safaribooksonline.com/book/certification/cipt/9781587052613/understanding-cisco-ip-telephony-authentication-and-encryption-fundamentals/584. 


Q83. Which action configures PSTN backup for calls that are rejected by the gatekeeper CAC? 

A. Configure AAR in Cisco Unified Communications Manager. 

B. Configure CFUR in Cisco Unified Communications Manager. 

C. Configure a route pattern, a route list, and route groups to a trunk and a gateway in Cisco Unified Communications Manager. 

D. Configure a route pattern to a gateway in Cisco Unified Communications Manager. 

Answer: C 


Q84. Which two options are effective mechanisms to restrict the maximum number of voice calls on a WAN link? (Choose two.) 

A. Configure a gatekeeper with an SIP trunk. 

B. Configure a gatekeeper and a gatekeeper-controlled trunk in Cisco Unified Communications Manager with bandwidth control. 

C. Configure Cisco Unified Communications Manager regions. 

D. Configure Cisco Unified Communications Manager locations. 

Answer: B,D 


Q85. Scenario 

There are two call control systems in this item. The Cisco UCM is controlling the DX650, the Cisco Jabber for Windows Client, and the 9971 Video IP Phone. The Cisco VCS is controlling the SX20, the Cisco TelePresence MCU, and the Cisco Jabber TelePresence for Windows. 

Use the exhibits to answer the following questions. 

SX20 System Information 

DX650 Configuration 

MRGL 

DP 

Locations 

AARG 

CSS 

Movi Failure 

Movi Settings 

What two issues could be causing the Cisco Jabber Video for TelePresence failure shown in the exhibit? (Choose two.) 

A. Incorrect username and password 

B. Wrong SIP domain configured. 

C. User is not associated with the device. 

D. IP or DNS name resolution issue. 

E. CSF Device is not registered. 

F. IP Phone DN not associated with the user. 

Answer: B,D 


Updated 300-075 vce:

Q86. On which Cisco Unified Communications Manager configuration parameter does the CODEC that a Cisco IP Phone uses for a call depend? 

A. enterprise parameters 

B. media resources 

C. physical location 

D. region 

E. location 

Answer: D 


Q87. Which sign is prefixed to the number in global call routing? 

A. -

B. + 

C. # 

D. @ 

E. & 

F. * 

Answer: B 


Q88. Which bandwidth amounts are correct for configuring locations? 

A. 8 kb/s for G.729, 64 kb/s for G.711, and 64 kb/s for G.722 

B. 8 kb/s for G.729, 64 kb/s for G.711, and 16 kb/s for G.722 

C. 64 kb/s for G.729, 64 kb/s for G.711, and 64 kb/s for G.722 

D. 8 kb/s for G.729, 8 kb/s for G.711, and 8 kb/s for G.722 

Answer: A 


Q89. When configuring a video ISDN gateway, which two actions are requirements for the Cisco Preferred Architecture for Enterprise Collaboration? (Choose two.) 

A. Use SIP instead of H.323. 

B. Perform dial string manipulation on Cisco Unified Communications Manager. 

C. Use an * (asterisk) at the end of each ISDN number, as a suffix. 

D. Use an ! (exclamation point) at the end of each ISDN number, as a suffix. 

E. Use H.323 instead of SIP. 

Answer: A,B 


Q90. Refer to the exhibit. 

How many calls are permitted by the RSVP configuration? 

A. one G.711 call 

B. two G.729 calls 

C. one G.729 call and one G.711 call 

D. eight G.729 calls 

E. four G.729 calls 

Answer: B 

Explanation: 

Incorrect Answer: A, C, D, E In performing location bandwidth calculations for purposes of call admission control, Cisco Unified Communications Manager assumes that each call stream consumes the following amount of bandwidth: 

.G.711 call uses 80 kb/s. 

.G.722 call uses 80 kb/s. 

.G.723 call uses 24 kb/s. 

.G.728 call uses 26.66 kb/s. 

.G.729 call uses 24 kb/s. 

Link: http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_6_1/ccmsys/a02cac.html #wpxref28640