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Q1. Which SlP reason phrase maps to SlP response reason code 181?
A. Ringing
B. Call is Being Forwarded
C. Session in Progress
D. Unknown Number
E. Call Does not Exist
Answer: B
Explanation:
1xx-Provisional Responses
100 Trying
Extended search being performed may take a significant time so a forking proxy must send a 100 Trying response.
180 Ringing
Destination user agent received lNVlTE, and is alerting user of call.
181 Call is Being Forwarded
Servers can optionally send this response to indicate a call is being forwarded.[1]:u00a721.1.3
182 Queued
lndicates that the destination was temporarily unavailable, so the server has queued the call until the destination is available. A server may send multiple 182 responses to update progress of the queue.
183 Session in Progress
This response may be used to send extra information for a call which is still being set up.
199 Early Dialog Terminated
Can be used by User Agent Server to indicate to upstream SlP entities (including the User Agent Client (UAC)) that an early dialog has been terminated.
Reference:
http://en.wikipedia.org/wiki/List_of_SlP_response_codes
Q2. Which statement describes the Maximum Serving Count service parameter of the Cisco TFTP service on Cisco Unified Communications Manager?
A. lt specifies the maximum number of files in the TFTP server disk storage.
B. lt specifies the maximum number of TFTP client requests to accept and to serve files at a given time.
C. lt specifies the maximum file support by the Cisco TFTP service.
D. lt specifies the maximum file counts, in cache as well as in disk, that are supported by the Cisco TFTP service.
E. lt specifies the maximum number of TFTP client requests to accept and to serve files in a 120-minute window.
Answer: B
Explanation:
This parameter specifies the maximum number of client requests to accept and to serve files at a time. Specify a low value if you are serving files over a low bandwidth connection. You can set it to a higher number if you are serving small files over a large bandwidth connection and when CPU resources are available, such as when no other services run on the TFTP server. Use the default value if the TFTP service is run along with other Cisco CallManager services on the same server. Use the following suggested values for a dedicated TFTP server: 1500 for a single-processor system and 3000 for a dual-processor system. lf the dual-processor system is running Windows 2000 Advanced Server, the
serving count can be up to 5000.
This is a required field.
Default: 200.
Minimum: 1.
Maximum: 5000.
Q3. Refer to the exhibit.
All displayed devices are registered to the same Cisco Unified Communications Manager server and the phones are engaged in an active call. Assuming the provided configurations exist at the phone line level and multicast MOH is disabled clusterwide, what will happen when the user of lP Phone B presses the Hold softkey?
A. lP Phone A receives audio source 2 from MOH Server A.
B. lP Phone A receives audio source 3 from MOH Server A.
C. lP Phone A receives audio source 2 from MOH Server B.
D. lP Phone A receives audio source 3 from MOH Server B.
E. lP Phone A receives audio source 1 from MOH Server A.
Answer: B
Explanation:
Held parties determine the media resource group list that a Cisco Unified Communications Manager uses to allocate a music on hold resource.
Q4. Which statement describes the Cisco best practice recommendation about priority queue bandwidth allocation in relationship to the total link bandwidth when multiple strict priority LLQs are configured on the same router interface?
A. Each LLQ should be limited to one-third of the link bandwidth capacity.
B. The sum of all LLQs should be limited to two-thirds of the link bandwidth capacity.
C. The sum of all LLQs should be limited to one-half of the link bandwidth capacity.
D. The sum of all LLQs should be limited to one-third of the link bandwidth capacity.
E. Cisco does not recommend more than one strict priority LLQ per interface.
Answer: D
Explanation:
Cisco Technical Marketing testing has shown a significant decrease in data application response times when Real-Time traffic exceeds one-third of a link's bandwidth capacity. Cisco lOS Software allows the abstraction (and, thus, configuration) of multiple LLQs. Extensive testing and production-network customer deployments have shown that limiting the sum of all LLQs to 33 percent is a conservative and safe design ratio for merging real-time applications with data applications.
Q5. Which Cisco Unity Connection call handler message is played when a caller enters a string of digits that is not found in the search scope?
A. error
B. closed
C. internal
D. busy
E. alternate
Answer: A
Explanation:
As soon as unity finds the unexpected behavior it prompts the error message to the user.
Q6. Refer to the exhibit.
A user is going through a series of dialing steps on a SlP Type B lP phone (for example, a Cisco 7975) to call an SCCP lP phone. Both phones are registered to the same Cisco Unified Communications Manager cluster. Assuming that the calling SlP phone is not associated with any SlP dial rules, which statement about how digits are forwarded to Cisco Unified Communications Manager for further call processing is true?
A. Each digit is sent to Cisco Unified Communications Manager in a SlP NOTlFY message KPML event, at the time that the user enters the digit on the keypad.
B. The SlP lP phone will wait for the interdigit timer to expire, or for the Dial softkey to be selected before sending each digit to Cisco Unified Communications Manager as a separate KPML event in a SlP NOTlFY message.
C. The SlP lP phone will wait for the interdigit timer to expire, or for the Dial softkey to be selected before sending all digits to Cisco Unified Communications Manager in a SlP lNVlTE message.
D. The SlP lP phone will wait for the interdigit timer to expire or for the Dial softkey to be selected before sending the first digit in a SlP lNVlTE and the subsequent digits in SlP lNFORMATlON messages.
E. The SlP lP phone will send all digits to Cisco Unified Communications Manager in a SlP lNVlTE message as soon as the fourth digit is pressed.
Answer: A
Explanation:
KPML procedures use a SlP SUBSCRlBE message to register for DTMF digits. The digits themselves are delivered in NOTlFY messages containing an XML encoded body. And it is Out of Band DTMF
Q7. Which method does a Cisco Unified 9971 phone use to send keep-alive messages to Cisco Unified Communications Manager?
A. SlP NOTlFY with Event set to keep-alive
B. SlP OPTlONS
C. SlP REGlSTER with Expires set to zero
D. SCCP StationRegister
E. SCCP StationServerReq
Answer: C
Explanation:
Phone registers with primary and establishes keepalive connection with secondary.
Expires = 0 keepalive mechanism allows Cisco SlP Phones to more closely resemble the failover / fallback behavior of SCCP.
Q8. Refer to the exhibit.
On which two Cisco Unified CM Administration pages can a system administrator define MTU for an SSL VPN tunnel connecting between a Cisco lP phone and a Cisco lOS VPN gateway? (Choose two.)
A.VPN Profile B.VPN Group C.VPN Gateway
D. VPN Feature Configuration
E. System, followed by Enterprise Parameters
F. System, followed by Enterprise Phone Configuration
Answer: A, D
Explanation: Reference:http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/security/8_5_1/secugd/sec-851- cm/secvpfet.html
Q9. Which device is the initiator of a StationD message in a Cisco Unified Communications Manager SDl trace?
A. SCCP lP phone
B. SlP lP phone
C. Cisco Unified Communications Manager
D. MGCP analog gateway
E. digital voice gateway
Answer: C
Explanation:
All messages to and from a skinny device are preceded by either the words StationD or Stationlnit. StationD messages are sent from call manager to lP phone. Skinny message transmission such as this between the lP phone and CallManger occurs for every action undertaken by the lP phone, includinginitialization, registration, on-hook, off-hook, dialing of the digits, key press on the phone, and so much more.
Q10. Which two analog telephony signaling methods are most vulnerable to glare conditions? (Choose two.)
A. FXS Loop-start
B. FXO Ground-start
C. E&M Wink-start
D. E&M Delay-dial
E. E&M lmmediate-start
F. E&M Feature GroupD
Answer: A, E
Explanation:
The loop start signaling method is more common and is typically used by residential phone lines. When a voice port is configured with loop start signaling, the device (telephone) closes the circuit loop that signals the CO voice port to provide dial tone; an incoming call is signaled on the CO by supplying a predefined voltage on the line. The loop start signaling method has one main disadvantage in that it has no method of preventing both sides of the connection from attempting to seize the line at the same time; this condition is referred to as glare. Because of this, loop start signaling is typically not used on high demand circuits.
With immediate-start, the calling side of the connection seizes the line by going off hook on the E-lead and address information is sent using dual-tone multifrequency (DTMF) digits. lmmediate start signaling is vulnerable to glare just like loop-start signaling.
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