Question 1

A and C. H.232 and SIP are peer-to-peer protocols. Answer B is incorrect because MGCP is a client/server protocol. Answer D is incorrect because it is not a signaling protocol. Answer E is incorrect because SCCP is a client/server protocol.

Question 2

C. Four call legs are required in this example. Answers A, B, and D are incorrect because one inbound and one outbound call leg are required per gateway.

Question 3

D. The maximum number of phones supported by Cisco Unified CME is 240. Answers A, B, and C are incorrect because CME supports 240 phones.

Question 4

D. The command used to define the maximum numbers of ephones is max-ephone. Answers A, B, and C are incorrect because they are not valid commands.

Question 5

D. This answer is correct because noasw is not a valid keyword for the call-forward command. Answer A is incorrect because noan is a valid keyword for the call-forward command. Answer B is incorrect because busy is a valid keyword for the call-forward command. Answer C is incorrect because all is a valid keyword for the call-forward command.

Question 6

A and C. CCA offers the topology and front panel graphical views. Answer B is incorrect because there is no “Current Traffic Volume” in the graphical view. Answer D is incorrect because there is no “Auto Attendant Call Flow” in the graphical view.

Question 7

D. The hunt type does not affect other hunt groups; it pertains only to the hunt group it was configured on. Answers A, B, and C are incorrect because hunt type settings of one group have no effect on the other groups.

Question 8

A and D. H.323 is an open-standard, peer-to-peer protocol and MGCP is an open-standard, client/server protocol. Answer B is incorrect because MGCP is a client/server protocol. Answer C is incorrect because H.323 is a peer-to-peer protocol.

Question 9

B. A VoIP dial peer is used to route a call to an IP destination. Answer A is incorrect because a POTS dial peer is used with a traditional analog or digital voice port. Answers C and D are incorrect because they are not valid dial peer types.

Question 10

C. 720 is the maximum number of directory numbers that are supported by Cisco Unified CME. Answers A, B, and D are incorrect because the maximum number of DNs that CME supports is 720.

Question 11

D. A second line is needed for full-consult transfers to work; if a second line is not a available, a blind transfer occurs. This does not mean that two DNs need to be configured; a single DN configured as a dual-line will suffice. Answer A is not correct because while the statement does not contain any incorrect information, it is not as complete as Answer D. Answer B is incorrect because the call will not fail if the second line is not available. Answer C is incorrect because full-consult does not use H.450.12.

Question 12

B. The WAN port is used to connect to an Internet provider. Answer A is incorrect because the Expansion port is used to connect a switch to the UC500. Answers C and D are incorrect because there are no such ports.

Question 13

C. Most phones are configured the same in keysystem mode. Answer A is incorrect because PBX mode is the default, not keysystem. Answer B is incorrect; calls are routed to an operator or Auto Attendant in PBX mode, not keysystem. Answer D is incorrect because keysystem mode has nothing to do with traditional keysystem integration.

Question 14

D. The Media Gateway Control Protocol (MGCP) is an IETF-standard client/server protocol. Answer A is incorrect because MGCP is a client/server protocol. Answer B is incorrect because MGCP does need a server. Answer C is incorrect because H.323 is a peer-to-peer protocol and does not operate like MGCP.

Question 15

A and B. The session target of a VoIP dial peer is an IP address, and a POTS dial peer uses the port command to determine where a call is routed. Answer C is not correct because the tag does not have to be between 100 and 1024. Answer D is incorrect because dial peer 0 only matches calls that do not match any other dial peer.

Question 16

A and B. The license and hardware platform determine how many phones can register to a Cisco Unified CME. Answer C is incorrect because the type of phone does not impact how many can register to CME. Answer D is incorrect because answer C is incorrect.

Question 17

D. The m separator of the button command configures the line as a monitor line. Answer A is incorrect because calls cannot be placed or received from ephone-dn 101. Answer B is incorrect because not only will ephone-dn not be able to receive multiple calls, but it will also not be able to receive any calls. Answer C is incorrect because the m separator of the button command makes the button a monitor-only button.

Question 18

D. The last line in the configuration defines that the call will be transferred to 2010 after the limit count is reached. If 2010 is busy, the call is sent to 2012. Answer A is incorrect because the call park number is 5510 and 121 is the tag number. Answer B is incorrect because the reminder is sent every 12 seconds and is the number of times the reminder will occur. Answer C is incorrect because the number that parks the call and 2002 receive the reminder.

Question 19

A, B, C, and D. All answers are correct. Dial plan, VLANs, PBX configuration, and autodiscovery are all supported by CCA.

Question 20

C. The internal pilot number for voicemail is configured in the Voicemail Access Extension field. Answer A is incorrect because the internal pilot number for the Auto Attendant is entered in this field. Answer B is incorrect because the number dialed from the PSTN to reach the Auto Attendant is entered in this field. Answer D is incorrect because the number dialed from the PSTN to reach voicemail is entered in this field.

Question 21

C. H.323 is an open-standard signaling protocol that supports voice, video, and data. Answer A is incorrect because PIMG is not a signaling protocol. Answer B is incorrect because DTMF does not support data. Answer D, MGCP, is incorrect because it does not support data. Answer E is incorrect because SMDI is a voicemail protocol.

Question 22

C. The session target command is part of a VoIP dial peer, not a POTS dial peer. Answers A, B, and D are incorrect because they are all valid POTS dial peer commands.

Question 23

B. A BRI has two B channels and one D channel. Answers A, C, and D are incorrect. PRI supplies 23B+D, and T1 and E1 are each 24 and 32 digital channels, respectively.

Question 24

A. Before an audio file can be selected in CCA, it must be uploaded to flash. Answer B is incorrect because the audio file is not uploaded when selected from CCA. Answers C and D are not correct because the file format is .wav or .au, a-law or mu-law.

Question 25

E. Network Address Translation, Standard IEEE 802.1X on switch, Cisco IOS Firewall, and Cisco Easy VPN Remote and Server support are all security features of SBCS.

Question 26

B. SS7 is used for call setup between COs. Answers A, C, and D are incorrect because they are CPE components.

Question 27

B. Answer A is incorrect because there is no international organization that mandates numbering plans. Answer C is incorrect because PBXs are controlled within an organization. Answer D is incorrect because the NANP manages only the United States and Canada.

Question 28

C. Answers A and B are incorrect; H.323 and SIP are call control protocols. Answers D and E are incorrect because they are variations of CCS call setup protocols for digital circuits.

Question 29

B. Humans can detect sounds in the 0–4000Hz range. Answer A would provide a very poor reproduction of the original signal. Answers C and D reference specific frequencies; a theorem is generic. Therefore, answers A, C, and D are incorrect.

Question 30

D. RTP helps VoIP endpoints identify sequence and missing packet issues by providing a sequence number and a time stamp with every voice sample group. Answers A (IP), B (TCP), C (UDP), and E (FTP) are incorrect.

Question 31

D. The Annex B variant applies to both G.729 and G.729a and is used to implement voice activity detection service with comfort noise generation. VAD and CNG go together and cannot be configured individually. Annex B does not impact the DSP processing power required or the codec complexity. Answers A and B are the two different companding methods for PCM encoding, and answer C, Annex C, is a fragmentation technique for Voice over Frame Relay. Therefore, answers A, B, and C are incorrect.

Question 32

A. G.711 uses 64Kbps and G.729 uses 8Kbps, respectively, so answers B, C, and D are incorrect.

Question 33

C. Compressed Real Time Protocol (cRTP) identifies the fields that are unchanged during a voice call, and after the first packet of a voice stream has traversed the link, only the changed header values are forwarded with the payload. cRTP requires only 2 bytes to convey the IP+UDP+RTP header changes for subsequent packets to the destination, after the first full 40-byte IP+UDP+RTP header has been transmitted. Answers A (RTCP), B (RTP), and D (secure RTP [sRTP]) are incorrect.

Question 34

D. TFTP requires a tftp-server command for each image file required by the IP phone to become operational. HTTP, DHCP, and FTP are not used during the automatic provisioning and registration process, so answers A, B, and C are incorrect.

Question 35

A and D. Poke a hole in the firewall, set up an NTP server in the DMZ (if present), or purchase an atomic or radio clock as your source. Answers B and C are incorrect because the internal clock on the router platform can drift over time.

Question 36

C. Answer A is incorrect; the default language is U.S. English and other options are configured globally or per phone. Answer B is incorrect because the time is derived from the router platform. Answer D is incorrect because ring tones are determined with the RingList.xml and DistinctiveRingList.xml files.

Question 37

B. The tftp-server command references the full URL, and the telephony-service load command references the filename without the extension. FTP service is not supported for IP phone firmware image upgrades, so answers A and D are incorrect. The complete filename including extension must be referenced by the tftp-server command, so answer C is incorrect.

Question 38

C. Before configuring anything, prepare a QoS policy based on information gathered prior to the installation. Answers A, B, and D are incorrect because they are configuration steps used to implant the QoS policy.

Question 39

D. The DSCP field is 6 bits long and contains a maximum of 64 different values, 0–63. The DSCP field is 6 bits long with 64 values, so answers A, B, and C are incorrect.

Question 40

B. QoS is enabled on this interface only when the phone is connected. Answers A and C are in the wrong configuration mode and are incorrect. Answer D provides static QoS and is active at all times.

Question 41

A, B, and D. AutoQoS will generate additional commands to implement PPP, cRTP, and LFI on circuits that are 768Kbps or slower, and not on higher-speed circuits. Answer C is incorrect; there is no conversion for PPPoE because Ethernet and higher (Fast and Gigabit) circuits have a bandwidth of at least 10000Kbps.

Question 42

A, D, and G. Per-line costs are less expensive, ITSPs use H.323 or SIP VoIP connections, and PSTN connections can be incremented in units of one line. Answers B and C apply to a direct ISDN PRI circuit and are incorrect. Answer E is incorrect because each ITSP connection has a negotiated service-level agreement for a maximum number of phone calls. Answer F is incorrect just because it uses the word never. Even if there are no billed long-distance charges, the charges are built into the circuit termination fee.

Question 43

B. Wildcard digits represent the digits starting with the leftmost wildcard in the destination pattern to the end of the dialed digits. Answer A has some truth to it, answer C could be true if no other digit manipulation occurs before the call is placed, and answer D is just a distracter, so answers A, C, and D are incorrect.

Question 44

C. The numexp global command can expand or replace the digits dialed prior to the outgoing dial peer match process. Answer A, the prefix command, prepends digits to the called party as the last dial peer digit manipulation and is incorrect. Answer B, forward-digits, modifies the default digit consumption rules for VoIP and POTS dial peers and is incorrect. Answer D sounds like a hoax but it is a hidden Cisco IOS command, just not for voice calls (just kidding) and is not correct.

Question 45

B. Answers A, C, and D are incorrect. Hardware conferencing uses SCCP, and the ITSP and VPIM locations are not local Cisco Unified Communications Express components.

Question 46

A and E. MWI on and off dial peers require an activation code followed by a wildcard period (.) for each digit in the dial plan extension length. Answers B, C, and D are incorrect because call park, group paging, and group call pickup features require a specific dialable number.

Question 47

A. The IP address and web administrator credentials are required to use the integrated Cisco Unified Communications Manager Express and Cisco Unity Express GUI. Answer B is incorrect; Cisco Unity Connection is a server-based product. Answer C is incorrect because the administrator password is set during the initial configuration script. Answer D, IPCCX, is a server-based platform.

Question 48

D. Answers A, B, and C are incorrect. There is no Telnet access to Cisco Unity Express, external ports cannot be used, and there is no external console port.

Question 49

C and E. Call-in numbers and Cisco Unified Communications Manager Express credentials are entered. Answer A is incorrect; host name is entered after an installation or factory default restore. Answer B is incorrect; the IP address is entered on the host router. Answer D is incorrect; users are imported from Cisco Unified Communications Manager Express or entered manually using the Cisco Unity Express CLI or GUI.

Question 50

C. In enabled exec CLI mode, the service-module service-engine mod/port status command returns the operating status and latest installed version. Answers B, D, and E cannot be operated as shown from configuration mode, even though B is the correct syntax. Answer A is incorrect due to keyword sequence, and answer F is incorrect because of missing keywords.

Question 51

C and D. The debug ephone mwi and debug voip dialpeer all commands can be used together to solve MWI outcall problems. Answer A is incorrect because there is no voicemail option, and answer B is incorrect because this command is used for integrating PSTN access to legacy voicemail systems.

Question 52

B and D. These answers show the two options used to turn off all debug commands. Answer A is incorrect; it displays the active debug commands. Answer C is incorrect because it is an incomplete command.

Question 53

A. The no console logging command disables all console messages. Answer B is an invalid command; answer C activates console message output for Telnet sessions, and answer D is used to store console messages in a local buffer.

Question 54

B. This command displays the Cisco IOS version and feature set. Answer A is incorrect; it displays the current active debug options. Answer C is incorrect; it displays the status of the currently configured ephones. Answer D is incorrect; it displays the version of Cisco Unified Communications Manager Express. Answer E is incorrect because it displays the information for all configured ephone-dns.

Question 55

A and D. The sequential option searches through the hunt group starting with the first extension in the group, and peer starts the search with the extension after the last selected extension. Answer B is an invalid option and is incorrect. Answer C is a correct option for voice hunt groups and is incorrect.

Question 56

B. The VPN service provides secure remote access. Answer A, NAT, is used to translate private internal IP addresses to public Internet addresses and is incorrect. Answer C is incorrect because it refers to protecting the platform from external or public security threats. Answer D, PAT, is another way to translate private internal IP addresses to public Internet addresses and is incorrect.

Question 57

B and D. Answers A and C are not default health graphs in CCA; therefore, these answers are incorrect.

Question 58

A. There is a single .zip file that contains all the software required to upgrade all components of the UC500 installation. Answers B, C, and D are not correct.