Test Information:
Total Questions: 378
Test Number: 400-051
Vendor Name: Cisco
Cert Name : CCIE
Test Name: CCIE Collaboration Written
Official Site: http://www.certsgrade.com
Version: 19.0
Question: 1
Which
two statements about using the Load Server option for IP phone firmware
distribution are true? (Choose two.)
A.
This option must be enabled on at least two servers in a Cisco Unified
Communications Manager cluster.
B.
This option must be enabled on Cisco Unified Communications Manager service
parameters for Cisco TFTP.
C.
Phone firmware must be manually copied to any applicable load servers.
D.
The load server will not function if its IP address is not in the same subnet
as the IP phones.
E.
This option is only available for newer IP phone models.
F.
This option does not accommodate falling back to Cisco TFTP on error.
Answer: C, F
Explanation:
Choosing the
Right Distribution Method
Which of the three different
image-distribution methods discussed so far is the best for a customer
deployment? Each method has advantages and disadvantages, and they are
summarized in Table 1.
Table 1. Summary of Distribution Models
Peer Firmware Sharing
|
Load Server
|
TraditionalTFTP
|
|
Advantages
|
•
Hierarchy is automatic
•
One download per phone model on a subnet
•
Uses TCP
•
Fails back to TFTP
•
Speeds up LAN upgrades
•
Reduces TFTP CPU load during upgrade
|
•
Has same download time as LAN image distribution
•
Distributes TFTP load over multiple TFTP servers
|
•
Proven distribution
•Defaultbehavior
|
Disadvantages
|
•
Must be enabled on each phone
•
Hierarchy is formed for each phone model
•
Hierarchy is limited to subnet
|
•IPmustbesetoneachphone
•Administratormustmanuallyfilecopytoloadserver
•NofailbacktoTFTPonerror
•
More prone to user error
|
•
High-bandwidth requirements
•
Multiple requests for same file
•HighCPUusageonTFTPserver
|
Reference:
http://www.cisco.com/en/US/prod/collateral/voicesw/ps6882/ps6884/white_paper_c11-583891.pdf
Question: 2
Which
two statements about the Peer Firmware Sharing option for IP phone firmware
distribution are true? (Choose two.)
A.
This option uses a parent-child hierarchy in which a firmware image is
downloaded by a parent phone to up to three directly associated child phones.
B.
This option must be enabled on Cisco Unified Communications Manager service
parameters for Cisco TFTP.
C.
This option mandates that the parent phone and child phones be identical,
selected phone models.
D.
This option allows firmware transfers between phones in different subnets, as
long as the round-trip delay is less than 5 milliseconds.
E.
This option uses a parent-child hierarchy that must be manually defined by the
Cisco Unified Communications Manager administrator.
F.
This option allows falling back to the TFTP server in the Cisco Unified
Communications Manager cluster.
Answer: C, F
Explanation:
Peer
Firmware Sharing works by
setting up a parent-child hierarchy of the phones in which a firmware image is
downloaded by the parent phone to a child phone. The advantage of using Peer
Firmware Sharing is that instead of all phones individually retrieving a
software image, they pass the image along from one phone to another phone on
the same subnet.
Advantage of PFS:
Hierarchy is automatic
One download per phone model on a subnet
Uses TCP
Fails back to TFTP
Speeds up LAN upgrades
Reduces TFTP CPU load during upgrade
Question: 3
Which
two statements about the Cisco UC on UCS specs-based virtualization support
model are true? (Choose two.)
A.
It has a configuration-based approach.
B.
It has a rule-based approach.
C.
It has less hardware flexibility compared to the third-party server specs-based
support model.
D.
It has less hardware flexibility compared to the UC on UCS TRC support model.
E.
VMware vCenter is optional with this support model.
Answer: B, C
Question: 4
Which
definition is included in a Cisco UC on UCS TRC?
A.
required RAID configuration, when the TRC uses direct-attached storage
B.
configuration of virtual-to-physical network interface mapping
C.
step-by-step procedures for hardware BIOS, firmware, drivers, and RAID setup
D.
configuration settings and patch recommendations for VMware software
E.
server model and local components (CPU, RAM, adapters, local storage) by name
only; part numbers are not included because they change over time
Answer: A
Explanation:
Definition of server model and local
components (CPU, RAM, adapters, local storage) at the orderable part number
level.
Required RAID configuration (e.g. RAID5,
RAID10, etc.) - including battery backup cache or SuperCap - when the TRC uses
DAS storage
Guidance on hardware installation and
basic setup.
Configuration
of Virtual-to-physical network interface mapping is design-dependent and not
included in TRC definition.
Configuration of adapters (such as Cisco
VIC, 3rd-party CNA / NIC / HBA) is design-dependent and not included in TRC
definition.
Design, installation and configuration of
external hardware is not included in TRC definition, such as:
Network routing and switching (e.g.
routers, gateways, MCUs, ethernet/FC/FCoE switches, Cisco Catalyst/Nexus/MDS,
etc.)
QoS configuration of route/switch network
devices
Cisco UCS B-Series chassis and switching
components (e.g. Cisco UCS 6100/6200, Cisco UCS 2100/2200, Cisco UCS 5100)
Storage arrays (such as those from EMC,
NetApp or other vendors)
Configuration settings, patch
recommendations or step by step procedures for VMware software are not included
in TRC definition.
Infrastructure solutions such as Vblock
from Virtual Computing Environment may also be leveraged for configuration
details not included in the TRC definition.
Question: 5
Which
capability is support by LLDP-MED but not by Cisco Discovery Protocol?
A.
LAN speed discovery
B.
network policy discovery
C.
location identification discovery
D.
power discovery
E.
trust extension
Answer: A
Explanation:
LLDP-MED supports both LAN speed and
duplex discovery. Cisco Discovery Protocol supports duplex discovery only, but
this limited support is not seen as a problem because if there is a speed
mismatch, LLDP-MED and Cisco Discovery Protocol cannot be exchanged and thus
cannot be used to detect the mismatch.
Question: 6
In
a Cisco EnergyWise domain, which two terms describe a Cisco IP phone? (Choose
two.)
A.
endpoint
B.
domain member
C.
child domain member
D.
EnergyWise agent
E.
Cisco power distribution unit
Answer: A, C
Question: 7
Which
statement about Cisco EnergyWise domain member neighbor formation is true?
A.
Cisco EnergyWise supports static neighbors, but the neighbor relationship is
only possible if a noncontiguous domain member and a contiguous domain member
have a static neighbor entry pointing to each other.
B.
Cisco EnergyWise static neighbors can be formed even if domain members are not
physically contiguous.
C.
Static neighbors can be manually defined on Cisco EnergyWise domain members,
but TCP protocols must be used.
D.
Static neighbors can be manually defined on Cisco EnergyWise domain members,
but they have a lower priority compared to the autodiscovered members.
E.
Static neighbors can be manually defined on Cisco EnergyWise domain members and
the TCP or UDP protocol can be used.
Answer: B
Question: 8
Refer
to the exhibit.
Assuming
that the administrator has never performed any manual custom uploads, which two
file types can be found when you choose Software Upgrades, followed by TFTP
File Management on the Cisco Unified Operating System Administration web page
for Cisco Unified Communications Manager? (Choose two.)
A.
IP phone configuration files
B.
announcement audio files
C.
ringer files
D.
IP phone license files
E.
sample music-on-hold audio files
F.
softkey template files
Answer: B, C
Explanation:
The
two file types that we get are Announcement Audio Files and Ringer Files.
Question: 9
Which
four attributes are needed to determine the time to complete a TFTP file
transfer process? (Choose four.)
A.
file size
B.
file type
C.
network interface type
D.
round-trip time
E.
packet loss percentage
F.
response timeout
G.
network throughput
Answer: A, D, E, F
Explanation:
Four
attributes that are needed to determine the time to complete TFTP file transfer
process is:
File
Size
Round-trip
time
Packet
loss percentage
Response
timeout
Question: 10
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: 11
Which
two SCCP call signaling messages are initiated by Cisco Unified Communications
Manager to an IP phone? (Choose two.)
A.
SoftKeyEvent
B.
CloseReceiveChannelAck
C.
CallState
D.
KeypadButton
E.
OpenReceiveChannel
F.
Offhook
Answer: C, E
Explanation:
Upon
receiving an OpenReceiveChannelmessage, the IP phone selects the UDP port number
it wants to use to receive RTP packets and reports this information to call
manager.
With
the SCCP protocol architecture, the majority of the H.323 processing power
resides in an H.323 proxy — the Cisco CallManager. The end stations (IP phones)
run the Skinny client, which consumes less processing overhead. The client
communicates with CallManager using connection-oriented (TCP/IP-based)
communication to establish a call with another H.323-compliant end station.
Once Cisco CallManager has established the call, the two H.323 end stations use
connectionless (UDP/IP-based) communication for audio transmissions.
Question: 12
Which
two SCCP call signaling messages are sent by an IP phone to Cisco Unified
Communications Manager? (Choose two.)
A.
SoftKeyEvent
B.
OpenReceiveChannelAck
C.
StartMediaTransmission
D.
SelectSoftKeys
E.
CloseReceiveChannel
F.
StopTone
Answer: A, B
Explanation:
This
message indicates which soft key was pressed. Upon receipt of this message, CallManager
invokes the action associated with the pressed soft key. For example, if Hold
was the pressed soft key, CallManager places the active call on user hold. In
some trace files you might see a soft key number without the corresponding
description. The following list defines each soft key number.
Question: 13
Company
ABC is planning to migrate from MCS-hosted Cisco Unified Communications Manager
applications to Cisco UC on UCS B-Series servers. Which statement about
installation media support is true for this migration?
A.
The install log can be written to a USB flash drive that is attached to the UCS
server.
B.
The answer file that is generated by the Answer File Generator
(platformConfig.xml) can be read from a USB flash drive to perform an unattended
installation on the UCS server.
C.
The Cisco Music on Hold USB audio sound card can be mapped to a virtual USB
port on a VMware virtual machine on the UCS server.
D.
The answer file that is generated by the Answer File Generator
(platformConfig.xml) can be read from an FLP image that is mounted in a virtual
floppy drive.
E.
The Cisco Music on Hold USB audio sound card can be mapped to a virtual serial
port on a VMware virtual machine on the UCS server.
Answer: D
Explanation:
Using
the AFG will allow you to get this license mac before even touching the server.
It is provided after filling in the main form of the AFG but it can also be
found by looking at the last few lines of your platformconfig.xml file.
Once
you have the xml files, you will need to map those to the floppy drive of the
VM (no usb support on the VM OVA). There are many ways to do this. I simply use
a freeware virtual floppy app that I drop the platformconfig.xml file on and
then copy the*.flp image out to the datastore. I’ll end up with a directory on
my datastore called AFG that has the host named *.flp images that I will use
during install. It also serves as archival of these files in the event the
server needs to be re-imaged. This is important because the license mac will
change if every parameter is not entered exactly as it was prior. If the
license mac changes, you will have to go through the process of requesting new
license files to be generated.
Question: 14
Which
statement about the Cisco UC on UCS TRC and the third-party server specs-based
virtualization support model is true?
A.
Both the UC on UCS TRC and the third-party servers spec-based support models
have rule-based approaches.
B.
The UC on UCS TRC support model has a rule-based approach and the third-party
servers spec-based support model has a configuration-based approach.
C.
The UC on UCS TRC support model requires a high level of virtualization
experience while the third-party server spec-based support model requires a low
to medium level virtualization experience.
D.
VMware vCenter is mandatory for the UC on UCS TRC support model but it is
optional for the third-party server spec-based support model.
E.
VMware vCenter is optional for the UC on UCS TRC support model but it is
mandatory for the third-party server spec-based support model.
Answer: E
Explanation:
VMware vCenter is
vCenter
Statistics Level 4 logging is mandatory so that Cisco TAC is able to provide
effective support.
Click
here for how to configure VMware vCenter to
capture these logs. If not configured by default, Cisco TAC may request
enabling these settings in order to provide effective support.
Also
note that enablement of specific VMware vSphere management features may require
vCenter and/or a higher feature Edition of vSphere ESXi.
Cisco
Collaboration does not require its own dedicated vCenter.
Note
that when VMware vCenter is not required and is not used, then VMware vSphere
ESXi's default management interface is its free/included VMware vSphere Client
(formerly branded VI Client).
Question: 15
Which
definition is included in a Cisco UC on UCS TRC?
A.
storage arrays such as those from EMC or NetApp, if applicable
B.
configuration of virtual-to-physical network interface mapping
C.
step-by-step procedures for hardware BIOS, firmware, drivers, and RAID setup
D.
server model and local components (CPU, RAM, adapters, local storage) at the
part number level
E.
configuration settings and patch recommendations for VMware software
Answer: D
Explanation:
What
does a TRC definition include?
Definition
of server model and local components (CPU, RAM, adapters, local storage) at the
orderable part number level.
Required
RAID configuration (e.g. RAID5, RAID10, etc.) - including battery backup cache
or SuperCap - when the TRC uses DAS storage
Click
here for detailed Cisco UCS server documentation
regarding hardware configuration procedures.
Configuration
of Virtual-to-physical network interface mapping is design-dependent and not
included in TRC definition.
Configuration
of adapters (such as Cisco VIC, 3rd-party CNA / NIC / HBA) is design-dependent
and not included in TRC definition.
Configuration
settings or step by step procedures for hardware BIOS, firmware, drivers, RAID
setup are not included. Click
here for detailed Cisco UCS server documentation.
Design,
installation and configuration of external hardware is not included in TRC
definition, such as:
Network
routing and switching (e.g. routers, gateways, MCUs, ethernet/FC/FCoE switches,
Cisco Catalyst/Nexus/MDS, etc.)
QoS
configuration of route/switch network devices
Cisco
UCS B-Series chassis and switching components (e.g. Cisco UCS 6100/6200, Cisco
UCS 2100/2200, Cisco UCS 5100)
Storage
arrays (such as those from EMC, NetApp or other vendors)
Configuration
settings, patch recommendations or step by step procedures for VMware software
are not included in TRC definition.
Infrastructure
solutions such as Vblock from Virtual Computing Environment may also be
leveraged for configuration details not included in the TRC definition.
Question: 16
Which
capability is supported by Cisco Discovery Protocol but not by LLDP-MED?
A.
LAN speed and duplex discovery
B.
Network policy discovery
C.
Location identification discovery
D.
Power discovery
E.
Trust extension
Answer: E
Explanation:
Cisco Discovery Protocol provides an
additional capability not found in LLDP-MED that allows the switch to extend
trust to the phone. In this case, the phone is now trusted to mark the packets
received on the PC port accordingly. This feature can be used to off-load the
switch because now it does not need to police the information being received from
the phone.
Question: 17
Which
two mechanisms does Cisco EnergyWise use for neighbor discovery? (Choose two.)
A.
multicast
B.
LLDP-MED
C.
UDP broadcast
D.
Cisco Discovery Protocol
E.
TCP
Answer: C, D
Explanation:
Cisco
EnergyWise Neighbor Discovery Process
The
Cisco EnergyWise neighbor discovery process is the mechanism by which domain
members discover each other and populate their Cisco EnergyWise neighbor
tables. Cisco EnergyWise queries can subsequently be distributed to all domain
members using the neighbor relationships to monitor and control the power usage
of devices within a domain. Cisco EnergyWise domain members automatically
discover their neighbors through one of two mechanisms:
Cisco
EnergyWise UDP broadcast packet
Cisco
EnergyWise CDP packets
UDP
broadcast packets are automatically sent out switch ports which support Cisco
EnergyWise, regardless of whether the interfaces are configured with the no
energywise interface-level command. CDP packets are sent when CDP is configured
for the switch ports.
Question: 18
Which
protocol does the Cisco Prime LAN Management Solution application use to
communicate with Cisco EnergyWise domain members?
A.
UDP broadcast
B.
Cisco Discovery Protocol
C.
UDP unicast
D.
TCP
E.
multicast
Answer: D
Explanation:
Cisco
Prime LMS 4.1 uses TCP port 43440.
Question: 19
Refer
to the exhibit.
Assuming
that the administrator has never performed any manual custom uploads, which two
file types can be found when you choose Software Upgrades, followed by TFTP
File Management on the Cisco Unified Operating System Administration web page?
(Choose two.)
A.
IP phone configuration files
B.
sample music-on-hold audio files
C.
Identity Trust List files
D.
IP phone license files
E.
Mobile Voice Access audio files
F.
softkey template files
Answer: C, E
Explanation:
We
get option for Identity Trust list Files and Mobile Voice Access audio files.
Question: 20
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.
Test Information:
Total Questions: 378
Test Number: 400-051
Vendor Name: Cisco
Cert Name : CCIE
Test Name: CCIE Collaboration Written
Official Site: http://www.certsgrade.com
Get20%
Immediate Discount on Full Training Mater
Discount Coupon Code: 20off2016 
No comments:
Post a Comment