150-820 Brocade Certified Ethernet Fabric Professional 2015 Questions and Answers

You are attempting to merge two Brocade VDX switches running in fabric mode, but they segment.

sw0# show fabric islports

Name: sw0

Type: 96.5

State: Online

Role: Fabric Principal

VCS Id: 10

Config Mode:Distributed

Rbridge-id: 4

WWN: 10:00:00:05:33:91:48:f7

FCF MAC: 00:05:33:91:48:f7

< truncated output >

sw0# show fabric islports

Name: sw0

Type: 96.5

State: Online

Role: Fabric Principal

VCS Id: 2

Config Mode:Distributed

Rbridge-id: 20

WWN: 10:00:00:05:33:90:92:e4

FCF MAC: 00:05:33:90:92:e4

< truncated output >

Referring to the exhibit, what is the reason?

You have configured your Brocade VCS Fabric to connect to a third-party switch using multiple links from two RBridges in your fabric. From the fabric, you configure a static vLAG for these links. You then receive complaints about network performance and notice a significant CPU load on the third-party switch.

What is the problem?

You just connected multiple Brocade VCS Fabric mode-enabled switches and you want them to form an Ethernet fabric.

Which two configurations must be applied? (Choose two.)

Router 2 has failed. You want to know what will happen when Host 3 tries to send traffic to the Internet.

Referring to the exhibit, which statement is correct?

During the Brocade VCS Fabric distributed MAC learning process, what information is learned and shared throughout the fabric? (Choose three.)

You are providing cloud-based virtual desktops to businesses from your data center. Each business needs to be completely segmented from each other; however, to keep costs down, you decide to use a single DHCP and DNS server with the least amount of configuration.

Which three features must be configured in the Brocade VCS Fabric? (Choose three.)

Which three are required for a Brocade VDX 6730 to join an existing Brocade VCS Fabric with centralized management? (Choose three.)

Your customer has performance problems and suspects dropped packets between the core router and the Brocade VCS Fabric. You determine that port Te 1/0/5 is connected to an old database server with a high transaction rate.

VDX1# show interface stats brief

Packets Error Discards CRC

Interface rx tx rx tx rx tx rx

Po 10 2013637 13726949 0 0 21668 0 0

Po 20 2215053 15608689 0 0 0 2 0

Te 1/0/1 1130905 12884896 0 0 21463 0 0

Te 1/0/5 39857 63074 0 0 0 0 0

< truncated output >

Referring to the exhibit, what is the cause of the discarded packets on the port channel from the core?

Referring to the exhibit,

to minimize downtime, what is the Brocade recommended approach to fabric node upgrades?

You want to form a single link aggregation group between a third-party switch and multiple Brocade VDX switches.

Which two conditions must be met? (Choose two.)

A customer has a problem forming a Brocade VCS Fabric using 10 GbE, SFP+ passive, Twinax cables.

What should the customer do to resolve this problem?

Your customer wants to take advantage of Brocade trunking to optimize the data backups over their Brocade VCS Fabric. The fabric will consist of four devices as shown in the exhibit.

The chassis are using the LC48X10G line cards.

Which two statements are correct? (Choose two.)

You receive a replacement Brocade VDX 6740T that has no management IP address configured on it.

Which port would you use to set the management IP?

You have three Brocade VCS Fabrics linked together and have enabled ELD.

Referring to the exhibit, which link would be blocked?

You have a Brocade VCS Fabric and one Brocade VDX has the multicast root manually assigned with the highest priority. You are going to remove that VDX from the fabric.

Which switch will become the multicast root if no other device has the priority set?

You just replaced a Brocade VDX in your four-switch VCS fabric.

Which two are enabled by default on the new VDX switch? (Choose two.)

Which Brocade VCS Fabric mode is required to support communication to an NSX controller?

After connecting a new server to your four-switch Brocade VCS Fabric, you notice that all the switches have learned the new server's MAC address.

Which VCS feature is responsible for this behavior?

In the exhibit, both MAC addresses are assigned to interface 2/0/4.

What does the (UC) indicate?

Referring to the exhibit, which statement is correct?

Exhibit:

VDX8770_3-131# sh port-c 123

LACP Aggregator: Po 123

Aggregator type: Standard

Ignore-split is enabled

Admin Key: 0123 - Oper Key 0123

Partner System ID - 0x0000,00-00-00-00-00-00

Partner Oper Key 0000

Member ports on rbridge-id 131:

Link: Te 131/2/16 (0x8318880086) sync: 0

VDX8770_3-131# show running-config interface Port-channel 123

interface Port-channel 123

vlag ignore-split

switchport

switchport mode trunk

switchport trunk allowed vlan add 10,30

switchport trunk tag native-vlan

spanning-tree shutdown

no shutdown

Exhibit:

Brocade Network Advisor has notified you that one of your ISLs between two Brocade VDXs is reporting a high number of errors. You log into the switch and clear the counters. You notice that the CRC and error counters are incrementing at a high rate.

What do these two errors indicate? (Choose two.)

Exhibit:

RB10# show mac-address-table port-profile

VlanId Mac-address Type State AMPP Ports

100 0050.65bf.0001 Dynamic Active Profiled (T) 2/0/1

100 0050.65bf.0002 Dynamic Active Profiled (UC) 2/0/1

Exhibit:

Referring to the exhibit, what would you determine about this interface?

You want to examine packets in transit across links to troubleshoot the traffic pattern on a specific port using SPAN on a Brocade VDX 6730-76. You configure a monitor session with source interface Te 1/0/10 and destination interface Te 1/0/21.

Which two statements are correct? (Choose two.)

After adding a large number of servers to your Brocade VCS Fabric, you notice a severe performance impact to your FCoE traffic. You want to ensure that FCoE traffic is not impacted.

What would you do to resolve this problem?

A customer has configured sFlow on a four node VCS cluster which includes one Brocade VDX 8770 and three VDX 6740T-1G switches. The customer sees sFlow samples from all the interfaces on the VDX 8770 but is not seeing sFlow samples from the 1 GbE interfaces on the VDX 6740T-1G switches.

Which statement is correct?

You have connectivity from a top of rack Brocade VDX 6740 to two Brocade VDX 8770s in the core. Ports 1-16 are connected to one VDX 8770, and ports 49-52 are connected to the other VDX 8770 in break out mode.

Which two statements about the VDX 6740 in this scenario are true? (Choose two.)

Which extension to the TRILL protocol allows a Brocade VCS Fabric to scale beyond 4096 VLANs?

What is the name of the ASIC used in Brocade VDX 6430?

Your customer has just implemented a Brocade VCS Fabric at the aggregation layer that interfaces with core and edge switches running RSTP. The Linux servers are detecting BPDUs at their interfaces confirmed by using the tcpdump command from a server. You want to prevent this traffic.

Which two parameters should be configured to accomplish this task? (Choose two.)

You want to capture sFlow statistics from a group of interfaces on a Brocade VDX and forward the data to your Brocade Network Advisor server.

Which three steps are required for a working configuration? (Choose three.)

You are connecting an existing Ethernet network to a Brocade VCS Fabric. You want to prevent any Layer 2 loops from forming.

Which two features would be used on the Brocade VDX to meet this requirement? (Choose two.)

Which three statements are correct regarding a vLAG? (Choose three.)

What are three Brocade VCS Fabric core technology principles? (Choose three.)

Which feature simplifies deployment of QoS for IP-based storage in a Brocade VCS Fabric?

You are attempting to merge two Brocade VDX switches, both running in fabric mode, but they segment.

sw0# show fabric islports

Name: sw0

Type: 96.5

State: Online

Role: Fabric Principal

VCS Id: 10

Config Mode:Distributed

Rbridge-id: 4

WWN: 10:00:00:05:33:91:48:f7

FCF MAC: 00:05:33:91:48:f7

< truncated output >

sw0# show fabric islports

Name: sw0

Type: 96.5

State: Online

Role: Fabric Principal

VCS Id: 10

Config Mode:Distributed

Rbridge-id: 4

WWN: 10:00:00:05:33:90:92:e4

FCF MAC: 00:05:33:90:92:e4

< truncated output >

Referring to the exhibit, what is the reason?

You are required to deploy servers with a single adapter that are attached to your Brocade VCS Fabric to communicate with FC SAN attached storage.

What is required?

Which item is unique about a Brocade SilkWorm 2800 switch that is part of a Brocade VCS Fabric?

Your current VCS fabric comprised of Brocade VDX 8770s is running NOS 4.0.0b in logical chassis mode. You would like to upgrade the firmware with no impact to L2 traffic.

Which two procedures would accomplish this task? (Choose two.)

You are asked to deploy servers with a single adapter that is attached to your Brocade VCS Fabric to communicate with FC SAN attached storage.

Which two components are required? (Choose two.)

Which two statements are true when traffic is transmitted over a fabric ISL trunk? (Choose two.)

A customer wants to connect a group of servers to different Brocade VDXs in a three switch Brocade VDX 6740 fabric. All servers should have one gateway and should failover if one switch is taken offline for maintenance. The individual VDX should forward all packets to the destination from the VDX that receives them.

How should this solution be implemented?

When congestion is experienced in a network, which type of frame is transmitted when protocol 802.3x flow control is enabled?

Exhibit:

switch# show ip route

< Output Truncated >

Destination Gateway Port Cost Type Uptime

1 0.0.0.0/0 10.24.64.1 mgmt 1 1/1 S 8m24s

2 1.1.1.0/24 10.1.1.10 Ve 10 1/1 S+ 3m11s

3 1.1.2.0/24 DIRECT Ve 12 0/0 D 3m11s

4 10.24.64.0/20 DIRECT mgmt 1 0/0 D 8m28s

Exhibit:

Referring to the exhibit, which statement is true?

You are building a Brocade VCS Fabric that includes one each of the Brocade VDX 8770, VDX 6740, VDX 6740T-1G, and VDX 6740T switches. All switches have base licenses. The VDX 8770 contains one 40 GbE port card.

Which two switches do you need to install the 40 GbE Port license? (Choose two.)

A customer would like to increase the bandwidth to servers connected to a Brocade VCS Fabric. Two 10 Gbps NICs to the server were teamed, but now there is no IP connectivity to the Brocade VDX 6740.

Which two switch changes, depending upon the hypervisor platform, should be used to correct the 20 Gbps connection to the server? (Choose two.)

-- Exhibit –

-- Exhibit --

Click the exhibit button.

You notice that iSCSI traffic is slow on the iSCSI storage device. The

Brocade VCS Fabric is in logical-chassis mode.

Which two actions would increase performance? (Choose two.)

You have a Brocade VDX 6740 switch running NOS 4.1.0.

Which two operational modes are able to be configured? (Choose two.)

A company has a Fibre Channel (FC) array in which they would like to connect to their data center servers using their existing Brocade VCS Fabric running NOS v4.1.0.

Referring to the exhibit, which two scenarios would accomplish this goal? (Choose two.)

You have three new Brocade VDX switches that are properly configured to join into a single Brocade VCS Fabric. You add two links in the same port group between each of the three switches.

Which two statements are true? (Choose two.)

You are troubleshooting connectivity problems with a Brocade VCS Fabric connecting to a VM ESXi host. You want to see the interfaces for dvSwitch shown in the exhibit.

VDX8770_3-131# show vnetwork dvs vcenter vcenter-1-69

dvSwitch Datacenter Host Uplink Name Switch Interface

=============== ==================== =========== ============== ====================

dvSwitch datacenter-21 TESTHOST3 vmnic4 -

vmnic5 -

TESTHOST4 vmnic4 -

vmnic5 -

dvSwitch2 datacenter-21 TESTHOST3 vmnic6 Te 179/0/3

TESTHOST4 vmnic7 Te 160/0/3

Which protocol should be active?

Discards are incrementing on an ISL in your Brocade VCS fabric due to tail drops.

Which condition would cause this problem?