cisco 400-051 Exam Questions
Questions for the 400-051 were updated on : Dec 01 ,2025
Page 1 out of 11. Viewing questions 1-15 out of 158
Question 1
Refer to the exhibit.
Refer
to the exhibit. Which of the statement is correct about active H.323 calls on the output captured
from a Cisco IOS VoIP gateway?
- A. There is one active H.323 call originating from this gateway
- B. This output alone is insufficient to determine the number of active H.323 calls
- C. There is one active H.323 call terminating on this gateway
- D. There are no active H.323 calls
- E. There are two active H.323 calls, one originating from and the other terminating on this gateway
Answer:
A
Question 2
The CIO has approached the lead architects to launch a new business transformation service across
the entire organization It requires adding thousands of virtualized container entities to the private
and public cloud environment But this carnes a significant management hurdle in organizing and
tracking large number of container instances Which five solutions do you use to overcome this
problem? (Choose five)
- A. Red Hat OpenShift
- B. Deis
- C. Kubemetes
- D. Amazon ECS
- E. Cisco UCS Director
- F. Docker Compose and Swarm
- G. Open Daylight
- H. Prime Catalog
Answer:
A, B, C, D, F
Question 3
What does a comma accomplish when it is used in a SIP Dial Rule pattern that is associated with a
Cisco 9971 IP Phone that is registered to Cisco Unified Communications Manager?
- A. it plays a secondary dial tone.
- B. It is a delimiter and has no significant dialing impact
- C. It is dropped because it is not a valid character
- D. It matches one or more digits from 0 to 9, or the asterisk (*) or pound (#) symbols.
- E. It introduces a short pause before the next character in the digit string
Answer:
A
Question 4
Which three are Border device types in Cisco Unified Communications Manager logical partitioning
policies? (Choose three)
- A. MGCP gateway with T1 PRI
- B. Cisco Unity Connection voicemail using SCCP
- C. CTI Route Points
- D. VG224 Gateways
- E. H.225 Trunks
- F. MGCP gateway with FXO pons
Answer:
A, E, F
Question 5
A SIP carrier delivers DIDs to a Cisco Unified Border Element in the form of +15556781OXX where the
last two digits could be anything from 00 to 99. To match the internal dial plan, that number must be
changed to 6785XXX. Where the last two digits should be retained. Which two translation profiles
create the required outcome? (Choose two)
- A. rule 1 /^\+1555\<678\(678\)10\(..\)$//\150\2/
- B. rule 1 /+1555\(...\).\(...\)$//\150\2/
- C. rule 1 /555\(.*\).*\(.*\)//\150\2/
- D. rule 1 /.15+678?10?\(..\)//67850\1/
- E. rule 1 /^15+678\(....\)/678\1/
Answer:
A, D
Question 6
Which Cisco Unified Contact Center Express data store contains CSQ information?
- A. Configuration data store
- B. historical data store
- C. agent data store
- D. script data store
- E. repository data store
Answer:
A
Question 7
Refer to the exhibit.
Refer to the exhibit. Which type of SIP message does Cisco Unity Express use to respond to this
incoming SIP message when it is configured for unsolicited MWI notification?
- A. 5XX
- B. 4XX
- C. 2XX
- D. 3XX
- E. 1XX
Answer:
B
Question 8
Which Cisco Unified Communications Manager Express ephone button configuration separator
enables overflow lines when the primary line for an overlay button is occupied by an active call?
- A. X
- B. W
- C. :
- D. C
- E. O
Answer:
A
Question 9
Refer to the exhibit.
Refer to the exhibit. Which SIP Rack header value is in a PRACK message that is sent in response to
this 183 Session Progress message?
- A. No Rack header is included
- B. 200
- C. 3235
- D. 102
- E. 3234
Answer:
E
Question 10
What is the default treatment of a message that is left in the opening greeting default call handler in
Cisco Unity Connection?
- A. it will be sent to the Undeliverable Messages distribution list
- B. It will be sent to the General Delivery Mailbox.
- C. It will be sent to the All Voicemail Users distribution list
- D. It will be sent to the mailbox of the system administrator
- E. It will be sent to the mailbox for the Operator user
Answer:
A
Question 11
Assume 6 bytes for the Layer 2 header, 1 byte for the end-of-frame flag and a 40-millisecond voice
payload, how much bandwidth should be allocated to the strict priority queue for five VoIP calls that
use a G.729 codec over a multilink PPP link?
- A. 102.6 kb/s
- B. 77 6 kb's
- C. 134 kb/S
- D. 71.3 kb/s
- E. 87 kb/s
Answer:
E
Question 12
What is the maximum number of UCM nodes configurable on a Cisco IOS gateway to provide MGCP
PRI call control?
- A. 2
- B. 4
- C. 5
- D. 3
- E. 1
Answer:
D
Question 13
Which statement describes how the digit zero is handled in the predefined restriction tables in Cisco
Unity Connection?
- A. Zero is listed in the Default Out-Dial Restriction table.
- B. Zero is listed in the Default System Transfer Restriction table.
- C. Zero is listed in the User-Defined and Automatically Added Alternate Extensions Restriction table
- D. Zero is not listed in any default restriction table configuration
- E. Zero is listed in the Default Transfer Restriction table.
Answer:
D
Question 14
Which of the following Cisco IOS-XE dial-peer commands has the highest preference for inbound SIP
dial-peer matching?
- A. Answer-address <number-string>
- B. Incoming URI to <uri-tag>
- C. Destination- pattern <number-string>
- D. Incoming called-number <number-string>
- E. Incoming called-number e 164-pattern-map <pattern-map-no>
Answer:
B
Question 15
Which SIP request is used by a Cisco 9971 IP Phone to signal DND status changes to Cisco Unified
Communications Manager?
- A. NOTIFY
- B. REGISTER
- C. INFO
- D. UPDATE
- E. PUBLISH
Answer:
E