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2018 Mar Cisco Official New Released 642-999
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Implementing Cisco Data Center Unified Computing
Question No: 31
What is the maximum number of ports on a VMware vCenter Distributed Virtual Switch?
A. 64 B. 128 C. 1024 D. 4096 E. 8192
Answer: D
Question No: 32
Refer to the exhibit.
Which two statements about the fabric interconnect are true? (Choose two.)
-
The fabric interconnect forwards all broadcast packets on VLAN 311 out of each interface listed in the Membership.
-
The fabric interconnect forwards broadcasts on VLAN 311 only when they are received on Po21.
-
Without any changes to the switch, eth 1/32 could become the designated receiver for VLAN 311.
-
All multicast traffic from a blade on VLAN 311 goes out of Po21.
-
IGMP join packets from blades on VLAN 311 goes out Po21.
Answer: B,E
Question No: 33
Which consideration must be made while performing backup operations within the Cisco UCS Manager?
-
Each backup destination can have multiple backup operations.
-
Backups can be scheduled ahead of time.
-
A user can perform incremental backups of a system configuration.
-
Rerunning an existing backup operation overwrites the existing backup file.
Answer: D
Question No: 34
When using VM-FEX, the new VMs are not connected, but existing VMs are unaffected.
Which option describes the most likely cause?
-
Binding is set to ephemeral on the DVS, but it must be set to static.
-
Dynamic NICs have been exhausted.
-
Hostd on the host has stopped responding to Cisco UCS Manager.
-
The adapter has failed.
Answer: B
Question No: 35
Which two statements about the provisioning of Cisco VM-FEX DirectPath I/O mode are true?
(Choose two.)
-
The VT-D feature on the ESX host server must be disabled before you can enable VMDirectPath.
-
VM-FEX standard mode is the same as VM-FEX high-performance mode.
-
Enabling high performance turns on VMDirectPath mode.
-
VMDirectPath mode prevents the use of VMware vMotion.
-
To use Cisco VM-FEX DirectPath I/O mode, a virtual machine must have a dynamic vNIC and two static vNICs on the VIC adapter.
Answer: C,E
Reference: http://www.cisco.com/c/en/us/solutions/collateral/data-center- virtualization/unifiedcomputing/vm_fex_best_practices_deployment_guide.html
Question No: 36
When adding a VMware ESXi host to the Distributed Virtual Switch, what are two risks of migrating a VMNIC that is associated to vSwitch 0? (Choose two.)
-
loss of access to the management IP interface
-
duplicate IP address error
-
duplicate MAC address error
-
loss of VMware ESXi communication with VMware vCenter
-
DVS port group will not appear in the VM network settings
-
DVS port group will overwrite the port groups in vSwitch 0
Answer: A,D
Question No: 37
How many certificates does Cisco Unified Computing System Manager have to export to communicate with VMware vCenter server if the VMware ESXi hosts are all running version 5.0 or higher?
-
1
-
2
-
4
-
8
-
16
Answer: A
Question No: 38
Which two VMware features will not allow an adapter to transition from Cisco VM-FEX standard mode to universal passthrough mode? (Choose two.)
-
VM Snapshot
-
Volume Shadow Copy
-
Storage vMotion
-
HA
-
Resource Reservations
Answer: A,C
Question No: 39
The system-reserved VLANs within Cisco UCS are 3968 to 4048 by default. Where can a
user change the starting value of this range?
-
VLAN manager
-
global policies
-
LAN cloud
-
cannot be changed
Answer: D
Question No: 40
In the Create Dynamic vNIC Connection Policy dialog box, there is a configurable field titled Protection. What is the significance of the three choices for Protection?
-
allows reserve vNICs to be allocated out of the spares pool
-
enables hardware-based failover
-
enables static binding of the VM port profile to dynamic vNICs
-
selects the primary fabric association for dynamic vNICs
-
allows dynamic vNICs to be reserved for fabric failover
Answer: D
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