Cisco 642-999 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 642-999
Exam Name/Title: Implementing Cisco Data Center Unified Computing
Certification Provider: Cisco
Corresponding Certification: CCNP Data Center

Exam Questions: 185
Updated On: Jun 03, 2026

Question #31

How does a dynamic vNIC get allocated?

A. Dynamic vNICs are assigned to VMs in VMware vCenter.

B. Dynamic vNICs are assigned by binding a port profile to the service profile.

C. Dynamic vNICs are bound directly to a service profile.

D. Dynamic vNICs can only be bound to the service profile through an updating template.

Discussion 0

Correct Answer: C Vote an answer

Question #32

Which two tasks enable jumbo frames on a Cisco UCS system? (Choose two.)

A. In the LAN cloud on Cisco UCS Manager, configure MTU 9000 in the VLAN.

B. In the service profile, configure MTU 9000 in the virtual machine.

C. In the service profile, configure MTU 9000 in the uplink interfaces.

D. In the LAN cloud on Cisco UCS Manager, define a QoS system class with MTU 9000.

E. In the service profile, configure MTU 9000 in the vNIC.

F. In the LAN cloud on Cisco UCS Manager, enable jumbo frames in Fabric A and Fabric

H. In the LAN cloud on Cisco UCS Manager, configure MTU 9000 in the uplink interfaces.

Discussion 0

Correct Answer: D,E Vote an answer

Question #33

Which technology makes VM-FEX possible?

A. VNTAG

B. VPC

C. DVS

D. VXLAN

Discussion 0

Correct Answer: A Vote an answer

Question #34

Which VMware ESXi 5.0 CLI command will validate PassThru interfaces when they are available?

A. vempts -v

B. vemifconfig -v

C. vempassthru-v

D. vem status -v

E. vemintf -v

Discussion 0

Correct Answer: D Vote an answer

Question #35

You manage Cisco UCS -Series Rack-Mount Servers. Which three components can you upgrade by using the Cisco Host Upgrade Utility? (Choose three.)

A. the LAN on motherboard

B. the system BIOS

C. the Cisco Integrated Management Controller

D. the fabric interconnects

E. the FEX modules

F. the operating system images

Discussion 0

Correct Answer: A,B,C Vote an answer

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Question #36

Which two policies can specify that a port channel be configured between the fabric extender and fabric interconnect? (Choose two.)

A. chassis connectivity policy

B. rack server discovery policy

C. autoconfig policies

D. chassis or fabric extender discovery policy

E. rack management connection policy

F. server inheritance policies

Discussion 0

Correct Answer: A,D Vote an answer

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Question #37

Which BIOS setting is required for a VMware ESXi 5.0 host to support Cisco VM-FEX universal pasthrough mode?

A. Execute Disabled Bit

B. Processor C State

C. VEMDPA Agent

D. ACPI 10 Support

E. VT for Directed IO

Discussion 0

Correct Answer: E Vote an answer

Question #38

If there are four I/O module links from the Cisco Unified Computing System 5108 Blade
Chassis to the Cisco Unified Computing System 6248UP Fabric Interconnect, which dynamic vNICs can be defined?

A. 112

B. 24

C. 16

D. 9

E. 54

F. 48

Discussion 0

Correct Answer: E Vote an answer

Question #39

Which two items can you provision in a vHBA Template? (Choose two.)

A. SCSI I/O Queues

B. FLOGI Timeout

C. vHBA Interrupt Mode

D. Max Data Field Size

E. Stats Threshold Policy

F. FCoE VLAN

Discussion 0

Correct Answer: D,E Vote an answer

Question #40

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.)

A. loss of VMware ESXi communication with VMware vCenter

B. loss of access to the management IP interface

C. DVS port group will not appear in the VM network settings

D. DVS port group will overwrite the port groups in vSwitch 0

E. duplicate IP address error

F. duplicate MAC address error

Discussion 0

Correct Answer: A,B Vote an answer

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