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400-051 Sample Questions:
Question Number 1:
A Cisco Unified Cm user is set up
with one remote destination profile that has two remote
destination numbers: the first
destination number is the users mobile phone in
country A and the second is a mobile
phone located in country . All outbound calls are
centralized from the gateway at
country A. The user reports that inbound calls are properly
routed to the mobile phone as long
as the user is in country A. But inbound calls are not
successfully routed to country B.
Which two options could be the cause of this? (Choose
two)
A. The
enable mobile connect option must be selected under the users second remote
destination number.
B. The
value of remote destination limits should be chaned to 2 instead of the default
value
of 4 under the end user page.
C. The
enable mobile voice access option must be selected under the end user page.
D. The
value of maximum wait time for desk pickup should be changed to 20000 instead
of
the default of D. 10000, under the
end user page.
E. The
rerouting calling search space assigned to the users remote destination
profile
must have access to international
calls.
Answer: A,E
_______________________________________________
Question Number 2:
Which statement describes a
disadvantage of using the Cisco TFTP service to serve IP
phone load files?
A. The
Cisco TFTP services can run on only one Cisco Unified Communications Manager
server in a cluster.
B. Because
TFTP operates on top of UDP, there is a high risk of corrupted load file
delivery
at the completion of the TFTP
process due to undetected data loss in the network.
C. If
a response is not received in the timeout period, the TFTP server will not
resend the
data packet.
D. Packet
loss can significantly increase the TFTP session completion time.
E. Because
TFTP operates with an adaptive timeout period, the time to complete the file
transfer is unpredictable.
Answer: D
Explanation:
Voice traffic cannot recapture lost
packets. Rather than retransmitting a lost network
connection, the phone resets and
attempts to reconnect its network connection.
Reference:
http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/6921_6941_6961/7_1_2/english/
admin/guide/6921trb.html#wp1031181
____________________________________________
Question Number 3:
What is the maximum
number of call-processing subscribers in a standard deployment of a
Cisco Unified
Communications Manager Session Management Edition cluster?
A. 3
B. 4
C. 5
D. 8
E. 16
Answer: D
Explanation:
There is no deployment
difference between CUCM & CUCM session management Edition
cluster. The only
difference is that CUCM SME is designed to support a large number of
trunk to trunk
connections. Thus, 8 subscribers.
_________________________________________
Question Number 4:
Which procedure uses
H.225 messages to exchange H.245 Master-Salve Determination
information?
A. H.323 Fast Connect
B. H.245 tunneling
C. H.225 tunneling
D. H.323 early media
E. H.245 terminal capability set
Answer: B
Explanation:
The H.245 protocol is a
media control protocol that is a part of H.323 protocol suite. The
H.245 protocol is used
primarily to negotiate master-slave relationship between
communicating endpoints.
These endpoints exchange terminal capabilities and logical
channel manipulations
(open, close, modify).The H.245 messages can be encapsulated
and carried between
H.225 controlled endpoints within H.225 messages. This way of
piggy-backing an H.245 message to H.225 message is referred to as H245 Tunneling.
The H.245 Tunneling
method is optional and negotiable between communicating H.323
endpoints. If both
endpoints support this option, usually the H.245 Media Controlled
messages are exchanged
via the Tunneling method.
_________________________________________
Question number 5:
When multiple greetings
are enabled on Cisco Unity Express, which greeting will take the highest
precedence?
A. standard
B. meeting
C. busy
D. closed
E. internal
Answer: B
Explanation:
Meeting greeting has the
highest priority because it is set by the user when he does not want
to take the call and
notices the caller he is online.
_________________________________________
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CCNA Cisco Certified Network Associate CCNA
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Implementing Cisco IP Switched Networks (SWITCH v2.0)
Troubleshooting and Maintaining Cisco IP Networks (TSHOOT)
Implementing Cisco Network Security
CCIE Data Center (v2.0)
CCIE Collaboration
Troubleshooting Cisco IP Telephony and Video