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Exam A QUESTION 1
A. zone local West acme.com 192.168.1.1 zone cluster remote Cluster- West elementGK-West1 192.168.1.1 1719
B. zone local LA acme.com 192.168.1.2 zone cluster remote Cluster-West element GK-West1 192.168.1.1 1719
C. zone local SJ acme.com 192.168.1.1 element GK-West2 192.168.1.2 1719
D. zone local West acme.com 192.168.1.2 element GK-West2 192.168.1.2 1719
E. zone local West acme.com 192.168.1.1 zone cluster local Cluster-West element GK-West2 192.168.1.2 1719
F. zone local West acme.com 192.168.1.2 zone cluster local Cluster-West element GK-West1 192.168.1.1 1719
Correct Answer: EF Section: (none) Explanation
Explanation/Reference:
QUESTION 2
You are the IP Telephone Manager in pass4sure.com ‘(ou meet a WAN Iink problem,IP phones takes over three minutes to register with the SRST gateway. What is the most Iikely reason?
A. The WAN Iink is broken.
B. The keepalive timer too Iong.
C. The keepalive timer too short.
D. Each phone has a list of two alternate Cisco Unified Callmanager systems, and it tries to register with each before registering with the SRST gateway.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 3
Which dial peer will send calls to the PSTN via the CAS T1 using this controller conhiguration?
controller t1 3/0 framing esf linecode b8zsds0-group 1 timeslots 1-24 type e&m-wink-start
A. dial-peer voice 1 pots destination-pattern 9.@port3/0:1
B. dial-peer voice 1 pots destination-pattern 9.@port3/0:24
C. dial-peer voice 1 pots destination-pattern 91 port 3/0:1
D. dial-peer voice 1 pots destination-pattern 91 port 3/0:24
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 4
A. replace zone local DGK acme.com with zone remote DGK acme.com
B. replace zone prefix GK-A 770……. with zone prefix GK-A 770….
C. replace zone prefix GK-B 404… with zone prefix GK-B 404…….
D. replace zone remote GK-B acme.com 172.16.14.99 1719 with zone local GK-B acme.com
172.16.14.99 1719
E. replace zone local GK-A acme.com 172.16.14.44 1719 with zone remote GK-A acme.com
172.16.44.44 1719
Correct Answer: BE Section: (none) Explanation
Explanation/Reference:
QUESTION 5
Muttiservice IP-to-IP Gateway, the Cisco Unified Border Element, in addition to other Cisco los Soltware teatures, includes session border controiler (SBC) functions that enable end-to-end IP-based transport ot voice, video, and data between independent unified communications networks. Please point out three situations that an IP-to-IP gateway be useful.
A. two organizations have merged
B. an organization would like to migrate from H.323 to SIP
C. an organization has deployed a SIP IP telephony solution and needs to connect to a SIP service provider
D. an organization using H.323 needs to integrate an acquision that also uses H.323
Correct Answer: BCD Section: (none) Explanation
Explanation/Reference:
QUESTION 6
Which three features are available during SRST failover? (Choose three.)
A. music on hold
B. ip phone speed dial
C. distinctive ring
D. call forwarding
Correct Answer: ABC Section: (none) Explanation
Explanation/Reference:
QUESTION 7
You are the Cisco Conhiguration Assistant in pass4usre.com. Which los technology is used to restrict calling based on the device initiating the call?
A. Resource Availability Indicator
B. Class of Restrictions
C. Network Based Application Pecognition
D. Resource Peservation Protocol
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 8
You are the IP Telephone Manager in pass4sure.com. You have the following Cisco los
voice translation rule voice translation-rule 1 rule 1 /^91\(360\)\ (.+\)/ /9\2/
What will be the result it dialing the number 9-1-360-269-1212?
A. 911
B. 9269
C. 91360
D. 92691212
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 9
In a particular company, field offices route calls to headquarters out IP gateways to the PSTN. The numbers are all ot the torm 1-202-454-XXXX. When dialing, the field offices wish to dial only the Iast tour digits. Which ot the following Cisco lOS commands must be a part of the PSTN dial peer on the íield office gateways?
A. no digit-strip
B. prefix 1
C. num-exp ….1202454….
D. rule 1 ^202454 1
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 10
Muttiservice IP-to-IP Gateway, the Cisco Unified Border Element, in addition to other Cisco los Software features, includes session border controller (SBC) functions that enable end-to-end IP-based transport ot voice, video, and data between independent unified communications networks. An IP-to-IP gateway provides signaling protocol interworking between which protocols?
A. SCCP SIP
B. SIP MGCP
C. H.323 SIP
D. H.323 SCCP
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 11
Muttiservice IP-to-IP Gateway, the Cisco Unified Border Element, in addition to other Cisco los Soltware features, includes session border controller (SBC) functions that enable end-to-end IP-based transport ot voice, video, and data between independent unified communications networks. Which three are features of an IP-to-IP gateway?
A. security
B. Ip to PSTN gateway
C. video integration
D. Call admission control
Correct Answer: ACD Section: (none) Explanation
Explanation/Reference:
QUESTION 12
A company determines that all Iong-distance calls to area code 603 wilI route across the WAN. The destination gateway is 10.172.163.5 connected through serial interface 1/0. Which set ot Cisco lOS commands will accomplish this?
A. dial-peer voice 100 pots destination-pattern 1603 ……. port ipv4:10.172.163.5
B. dial-peer voice 101 voip destination-pattern 1603……. port 1/0
C. dial-peer voice 102 voip destination-pattern 1603……. session target ipv4:10.172.163.5
D. dial-peervoice 103 potsdestination-pattern 1603……. session-target 1/0
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 13
You are the IP Telephone Manager in pass4sure com. A single call is active through an IP-to-IP gateway. You execute show gatekeeper calls command, how many active call Iegs wiII be indicated?
A. 2
B. 3
C. 4
D. 5
Correct Answer: A Section: (none) Explanation Explanation/Reference:
QUESTION 14
A. You should do nothing, the warning may be ignored
B. You should register the application with the gatekeeper
C. You should register the application parameters with the gatekeeper
D. You should register the application parameters with the application
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 15
You have a client that is a national organization that has deployed an IP telephony network across all of the offices. The organization is divided into geographic regions. These regions include the east, the midwest, and the west. The organization would like to deploy a directory gatekeeper to provide dial-plan resolution for all of the regions. Which three statements correctly describe a DGK solution? (Choose three.)
A. provides Fault tolerance through a fulI mesh of regional gatekeepers
B. allows up to a four-tier gatekeeper hierarchy to be deployed
C. simplifies regional gatekeeper provisioning
D. allow local zones and LRQ forwarding zones to be mixed
Correct Answer: BCD Section: (none) Explanation
Explanation/Reference:
QUESTION 16
A. It cannot respond to a request within the specified timeout
B. It has to initiate a restart to avoid timing out
C. Current call needs to be restarted due to an RRJ
D. It has exceeded the timeout and needs to restart the call
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 17
You are the Cisco Configuration Assistant in pass4sure.com. What configuration should you execute on
H.323 gateway so that it is controlled by the Cisco Unified CallManager?
A. OnIy configure the gateway on the Cisco Unified CallManager
B. Use the H.323-gateway voip srcadd gateway to bind the gateway to the Cisco Unified CallManager.
C. Use the telephony-service ccm-compatible gateway to enable the Cisco Unified CaliManager to control the gateway.
D. The Cisco Unified CallManager and the H.323 gateway are peers. The Cisco Unified CallManager does not control H.323 gateways.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 18
A service provicier wants to add SIP devices to the existing H.323 voice network. Which Cisco device wiII allow the SIP devices to use the existing routing structure on the H.323 gatekeeper?
A. SlP voice gateway
B. Cisco SIP proxy Server
C. Cisco SIP Redirect Server
D. Cisco SIP Registrar Server
Correct Answer: B Section: (none) Explanation Explanation/Reference:
QUESTION 19
You are the IP Telephone Manager in pass4sure com. Pass4sure branch offices route calls to headquarters through gateways to the PSTN. The headquarters numbers are all in the form 1-301-565-7XXX. Now, calls to headquarters require 12 dialed digits: the access code “9” foilowed bythe 11-digit number. Employees in the branch offices would like to call people at headquarters by dialing only their four-digit extensions.
Which Cisco lOS command will allow them to do this?
A. num-exp 7… 913015657…
B. prefix 913015657
C. forward-digits 11
D. rule 1 /913015657/ /^7/
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 20
You are the IP Telephone Manager in pass4sure.com Which two statements are correct descriptions of bandwidth management and control?
A. Bandwidth control and management are all optionai function
B. Bandwidth control and management are all mandatory function
C. Bandwidth control is a mandatory function and bandwidth management is a H.323 optional function.
D. Bandwith management provides call admission control and Bandwidth control manages endpoint bandwith requirements.
Correct Answer: CD Section: (none) Explanation
Explanation/Reference:
QUESTION 21
When COR is used in a gateway, under what circumstance wiIl a call be completed between a specific pair of dial peers?
A. only when the COR Iists in the inbound and outbound dial peers are an exact match
B. When the COR Iist in the outbound dial peer is a subset of the COR list in the inbound dial peer
C. when the COR list in the inbound dial peer is a subset of the COR list in the outbound dial peer
D. when the COR Iists in the inbound and outbound dial peers have no matching members
Correct Answer: B Section: (none) Explanation
Explanation/Reference: QUESTION 22
You are the IP telephone manager in Pass4sure.com. Pass4sure includes a headquarters and brach office:
A. dial-peer voice 10 voip destination-pattern 206532…. session-target ipv4:10.172.16.111
B. dial-peer voice 11 pots destination-pattern 206532…. port 1/0:1 Forward-digits all preference 0
C. dial-peer voice 12 voip destination-pattern 206532…. session-target ipv4:10.172.16.111 preference 1
D. dial-peer voice 13 pots destination-pattern 206532…. port 1/0:1 Forward-digits all preference 1
Correct Answer: AD Section: (none) Explanation
Explanation/Reference:
QUESTION 23
You are the IP Telephone Manager in pass4sure.com.When packet redundancy is disabled, you use fax pass-through to execute a fax call.What is the amount of bandwidth required?
A. Same arnount of bandwidth as a G.71 1 voice call.
B. Same arnount of bandwidth as a G.729 voice call
C. 20% more bandwidth than a G.711 voice call because the fax sample size is smaller.
D. 20% more bandwidth than a G.729 voice call because the fax sample size is smaller.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 24
Which configuration wiII provision an E1 for ITU Q421 digital line signaling and compelled register signaling?
A. controller e1 1/0 cas-group 1 timeslots 1-31 type r2-digital r2-compelled ani
B. controller e1 1/0 cas-group 1 timeslots 1-31 type r2-compelled ani
C. controller e1 1/0 cas-group 1 timeslots 1-31 type r2-digital anicas-custom 1 signaling r2-compelled
D. controller e1 1/0 cas-group 1 timeslots 1-31 type r2-compelledcas-custom 1 signaling r2-digital
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 25
A. send an ACF back to the endpoint
B. send a call setup message to the gateway
C. send an ARJ message to the endpoint
D. send a LRQ message to DGK to resolve the call routing
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 26
A dial peer is configured with an outgoing Class of Restrictions list. Which two conditions must be met for calls matching this outbound dial peer to be blocked?
A. lncorning Class of Restrictions list must be configured on the matched inbound dial peer
B. lncorning Class of Restrictions list must be configured on the matched outbound dial peer
C. lncorning Class of Restrictions list must be a superset of the incoming COR list.
D. lncoming Class of Restrictions list and the outgoing COR Iist must contain the sarne rnernbers.
Correct Answer: AC Section: (none) Explanation
Explanation/Reference:
QUESTION 27
Which two features are benefits of using HSRP for gatekeeper redundancy? (Choose two.)
A. The gatekeepers can load balance.
B. The HSRP priority can be adjusted.
C. End devices do not have to re-register after a primary gatekeeper failure.
D. It uses a virtual ip address that is shared between the devices.
Correct Answer: BD Section: (none) Explanation
Explanation/Reference:
QUESTION 28
A. dial-peer voice 1 pots destination-pattern 9T port 3/0:0
B. dial-peer voice 1 pots destination-pattern 9T port 3/0:1 dial-peervoice 1 pots
C. dial-peer voice 1 pots destination-pattern 9T port 3/0:24
D. dial-peer voice 1 pots destination-pattern 9T session target 3/0:0
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 29
You are the IP Telephone Manager in pass4sure.com. You add a gatekeeper to an H.323 network to provide Call Admission Control. You want to support three concurrent G.711 calls trom a specified zone to any other zone. How much interzone bandwidth should be configured in the gatekeeper?
A. 128 Kbps
B. 192 Kbps
C. 384 Kbps
D. 512 Kbps
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 30
Acme Widgets is having trouble managing its fuIly meshed gatekeepers. What can be done to ease this administrative problem?
A. install an H.323 proxv server
B. implement a directory gatekeeper
C. group the gatekeepers into clusters
D. separate the gatekeepers into zones
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 31
IF a via-zone is created for a gatekeeper, enabling it to support an IP-IP gateway, are the tunctions of the gatekeeper dedicated to the via-zone?
A. YES
B. NO
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 32
You are the IP Telephone Manager in pass4sure com. You configure a gateway to connect to the PSTN ten analog circuits. Which two steps can be used to route calls across all circuits?
A. Configure eight dial peers pointing to each port for each destination pattern, and use the preference command to select which port is used.
B. Assign each port to a trunk group. Configure a single dial peer pointing to the trunk group for each destination pattern.
C. Assign each port to a hunt list. For each destination pattern, configure a single dial peer pointing to the hunt list.
D. For each destination pattern, configure a single dial peer. Use the port range command to select which port is used.
Correct Answer: AB Section: (none) Explanation
Explanation/Reference:
QUESTION 33
What is a benefit of implementing an IP-to-IP gateway?
A. provide ip network privacy and trust boundary for security.
B. offers equivalent quality and cost savings when compared to back-to-back gateways
C. works in conjunction with gateway proxies to provide scalable video solutions
D. enhances policy-routing capability’ by assigning carrier IDs to partner gateways
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 34
A. lt wilI attempt to register with the first gatekeeper in the East zone that replies, since the priority is set to
1.
B. lt wilI attempt to register with the GK-East1 zone, since it has the highest priority.
C. lt wilI attempt to register with the tirst gatekeeper that has the sarne priorityt number in the POF message.
D. lt wilI attempt to register with the tirst gatekeeper in the East zone that replies, and then wiIl attempt to register with GK-East1.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 35
A. Turn on tone-based supervisory disconnect on the FXO port.
B. Turn off tone-based supervisory disconnect on the FXO port.
C. Use ground-start signaling on the connection between the PBX and the router’s FXO port.
D. Shorten the amount of time that the PBX provides power denial so it will be recognized by lhe FXO port.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 36
Which three functions can be performed by a gatekeeper? (Choose three.)
A. voice QoS
B. admission control
C. zone management
D. address translation
Correct Answer: BCD Section: (none) Explanation
Explanation/Reference:
QUESTION 37
You are the Cisco Configuration Assistant in pass4usre.com. Pass4sure has two Cisco Unified CallManager clusters, each with an IP-to-IP gateway, Which two are required when deploying RSVP Call Admission Control between the Cisco Unitied CallManager clusters using the IP-to-IP gateways?
A. IP-to-IP gateway configured as RSVP peers
B. media flow-through
C. media flow-around
D. IP-to-IP gateways configured as RSVP peers.
Correct Answer: BD Section: (none) Explanation
Explanation/Reference:
QUESTION 38
A. enable the outgoing POTS dial peer with the no shutdown command
B. disable the outgoing POTS dial peer with the no shutdown command
C. call the phone provider and report that the PRI link is down
D. configure MGCP fallback on the gateway
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 39
Which is a use of GKTMP?
A. updating information in clirectory gatekeepers
B. providing SIP to H.323 protocol translation for PAI in SIP networks
C. querying third-party applications to implement specific policy controls
D. transmitting state information to alternate gatekeepers for Ioad balancing
Correct Answer: C Section: (none) Explanation Explanation/Reference:
QUESTION 40
The difference between a gatekeeper cluster and the use of alternate gatekeepers is:
A gatekeeper cluster can provide an ordered list of up to five alternate gatekeepers, but a gateway using the priority command can only support two alternate gatekeepers.
A. TRUE
B. FALSE
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
This volume is part of the Exam Certification Guide Series from Cisco 642-453.Cisco 642-453 in this series provide officially developed exam preparation materials that offer assessment, review, and practice to help Cisco 642-453 Certification candidates identify weaknesses, concentrate their study efforts, and enhance their confidence as Cisco 642-453 exam day nears.
