Cisco 642-999 Parte 4

Question 1

Which of the following is not a feature of the Cisco Unified Computing System VIC-1280 adaptor?

Answer 1

Compatible with the C- or B-Series Cisco Unified Computing System servers

Question 2

How does a Cisco Unified Computing System react when configured for disjoint Layer 2 domains?

Answer 2

“The VLAN traffic for a disjoint network can only travel along an uplink that is specifically assigned to this VLAN and is selectively excluded from all other uplinks.”

Question 3

Which feature must be configured for Linux VMs to be able to transition from Cisco VM-FEX standard mode to universal passthrough mode?

Answer 3

MSI Interrupt Mode

Question 4

Which of the following is the most accurate concerning the link configuration between Cisco Unified Computing System 22XX I/O modules and Cisco Unified Computing System 62XX Fabric Interconnects?

Answer 4

Port channels are always recommended when using source-dest-mac load balancing.

Question 5

Which of the following is true with respect to hardware failover or NIC teaming within a Cisco Unified Computing System?

Answer 5

The hardware failover option that is available for Ethernet does not affect Fibre Channel traffic.

Question 6

Which of the following are true concerning authentication within a Cisco Unified Computing System?

Answer 6

A locally authenticated user account is authenticated directly through the fabric interconnect.

Question 7

The Cisco UCS 6200 Series Fabric Interconnects offer a New feature that allows dynamic port allocation for all of the 10 Gigabit Ethernet interfaces. What are these ports called?

Answer 7

Unified ports

Question 8

In which situation would you be required to change a Cisco UCS system from end-host mode to switching mode?

Answer 8

HSRP routers are directly connected to the fabric interconnect.

Question 9

Which virtual hardware version is required for a VM to enter the Cisco VM-FEX universal passthrough mode?

Answer 9

Version 8

Question 10

Which of the following is true concerning the Global Chassis Discovery policy configuration on the Cisco Unified Computing System Manager when using Cisco Unified Computing System 22XX I/O modules with Cisco UCS 62XX Fabric Interconnects?

Answer 10

For Cisco Unified Computing System implementations that mix I/O modules with different numbers of links, it is best to manually reacknowledge the chassis in order to use all available links.”

Question 11

What is the maximum number of ports on a VMware vCenter Distributed Virtual Switch?

Answer 11

4096

Question 12

After staging a VEM file on a VMware ESXi 5.0 host in the /tmp directory, what is the correct command syntax to install the VEM?

Answer 12

esxcli software vib install -d /tmp/VEM500-20110825132140-BG-release.zip -maintenance-mode

Question 13

What is the purpose of the maximum ports that are filed in the port profile?

Answer 13

determines the maximum number of dynamic vNICS on the DVS

Question 14

Which network driver is required on a VMware ESXi 5.0 host for a vNIC to enter Cisco VM-FEX universal passthrough mode?

Answer 14

VMXNET3

Question 15

Which policy would you change to form a port channel between a Cisco UCS 6248 and a Cisco UCS 2208?

Answer 15

Chassis discovery policy

Question 16

Which of the following is true with respect to recovery from failure with automatic pinning that is configured on a cluster of Cisco Unified Computing System 62XX Fabric Interconnects?

Answer 16

“When a northbound fabric interconnect link goes down, the fabric interconnect will send a gratuitous ARP to the northbound switch to announce the servers on the new port.”

Question 17

Which of the following is true concerning Fibre Channel communications on a Cisco Unified Computing System?

Answer 17

Each VSAN requires a dedicated VLAN to carry FCoE traffic.

Question 18

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?

Answer 18

Selects the primary fabric association for dynamic vNICs

Question 19

Which of the following scenarios accurately demonstrate how the Cisco Unified Computing System ensures that a firmware upgrade is minimally disruptive to the data center unified fabric?

Answer 19

“If an I/O module is upgraded to a version that is incompatible with its fabric interconnect, the fabric interconnect can automatically reactivate the I/O module to a compatible version.”

Question 20

How does a dynamic vNIC get allocated?

Answer 20

Dynamic vNICs are bound directly to a service profile.