150-820 Sample Questions Answers

You have a Brocade VDX 6730 not running in logical chassis cluster mode. An ISL is segmented and the interface is up/up.

Which three parameters should you verify? (Choose three.)

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 have implemented flow-based sFlow in your Brocade VCS Fabric by enabling sFlow globally on each Brocade VDX. You are not receiving any statistics in your sFlow collector from these devices.

What must happen to start collecting data?

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 parameters are required when configuring a working vLAG on Brocade VDX switches? (Choose three.)

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.)

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.)

You want to allow help desk personnel to enable or disable only the 10 Gbps interfaces using CLI.

Which feature in Brocade NOS would you configure?

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 want to protect your Brocade VCS Fabric from excessive multicast traffic.

Which two features would you enable? (Choose two.)

Your customer wants their Brocade VCS Fabric to participate in a loop-free network when connecting to other switches.

Which three protocols are supported? (Choose three.)

Which two statements are true regarding Access Gateway mode on the Brocade VDX 6730? (Choose two.)

You are troubleshooting an FCoE login problem in your environment. The port shown in the exhibit has not been able to log into the fabric. The default FCoE fabric map in your environment has not been changed.

Interface TenGigabitEthernet 3/0/4

Mode PFC

DCBX enabled for PFC negotiation

TX 0 frames

TX TX RX RX Output Paused

CoS Admin Oper Admin Oper 512 BitTimes

---------------------------------------

0 Off Off Off Off 0

1 Off Off Off Off 0

2 Off Off Off Off 0

3 On Off On Off 0

4 Off Off Off Off 0

5 Off Off Off Off 0

6 Off Off Off Off 0

7 Off Off Off Off 0

sw0(conf-if-te-3/0/1-24)# do show lldp neighbors interface ten 3/0/4 detail

Neighbors for Interface Te 3/0/4

---

---

DCBX TLVs

===========

Version : CEE

DCBX Ctrl OperVersion: 0 MaxVersion: 0 SeqNo: 4 AckNo: 6

DCBX ETS OperVersion: 0 MaxVersion: 0 Enabled: 1 Willing: 0 Error: 1

Enhanced Transmission Selection (ETS)

Priority-Group ID Map:

Priority : 0 1 2 3 4 5 6 7

Group ID : 0 0 0 0 1 0 0 0

Group ID Bandwidth Map:

Group ID : 0 1 2 3 4 5 6 7

Percentage: 50 50 0 0 0 0 0 0

Number of Traffic Classes supported: 2

DCBX PFC OperVersion: 0 MaxVersion: 0 Enabled: 0 Willing: 0 Error: 1

Priority-based Flow Control (PFC)

Enabled Priorities: 3

Number of Traffic Class PFC supported: 8

FCoE App OperVersion: 0 MaxVersion: 0 Enabled: 1 Willing: 0 Error: 0

FCoE Application Protocol

User Priorities: 4

What are two causes of the problem? (Choose two.)

Which two port profile attributes would be assigned before applying the port profile to an interface? (Choose two.)

You must determine where a specific virtual machine defined in a port profile is physically attached to the Brocade VCS Fabric.

Which action would you perform?

You need to manage the IP address allocation in your multi-tenant Brocade VCS Fabric.

Which VCS feature is used to accomplish this?

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

What does the (UC) indicate?

Exhibit:

switch# show ip route

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?

Your customer has connected a Linux server with a CNA to a Brocade VDX 6740 in a VCS Fabric. SAN storage is connected to Brocade VDX 6730 FC ports in the same fabric. The server cannot access the storage port. You begin troubleshooting as shown in the exhibit.

sh fibrechannel login

Interface Index PID status protocol speed PortWWN

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

Fi 1/0/9 8 0101c0 up(In_Sync ) up 8G Auto Storage-WWN

sh fcoe login

FCOE-Port Eth-port Device WWN Device MAC Session MAC

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

Fcoe 1/1/1 Te 1/0/22 Server CNA-WWN Server Device MAC Server Session MAC

What are two causes of the problem? (Choose two.)

You connected interface 2 on a Brocade VDX 6740 to your LAN, but no traffic is traversing the link.

SW1# show interface tengigabitethernet 1/0/2

TenGigabitEthernet 1/0/2 is up, line protocol is down (link protocol down)

Hardware is Ethernet, address is 0027.f8b2.d728

Current address is 0027.f8b2.d728

Pluggable media present

Receive Statistics:

0 packets, 0 bytes

Unicasts: 0, Multicasts: 0, Broadcasts: 0

64-byte pkts: 0, Over 64-byte pkts: 0, Over 127-byte pkts: 0

Over 255-byte pkts: 0, Over 511-byte pkts: 0, Over 1023-byte pkts: 0

Over 1518-byte pkts(Jumbo): 0

Runts: 0, Jabbers: 0, CRC: 0, Overruns: 0

Errors: 0, Discards: 0

Transmit Statistics:

0 packets, 0 bytes

Unicasts: 0, Multicasts: 0, Broadcasts: 0

Underruns: 0

Errors: 0, Discards: 0

Referring to the exhibit, what is happening?

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:Local-only

Rbridge-id: 4

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

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

sw0# show fabric islports

Name: sw0

Type: 96.5

State: Online

Role: Fabric Principal

VCS Id: 10

Config Mode:Distributed

Rbridge-id: 20

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

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

Referring to the exhibit, what is the reason?

Which three features are provided when you enable Brocade NOS Virtual Fabrics? (Choose three.)

Which two protocols are used to forward L2 traffic within a Brocade VCS Fabric? (Choose two.)

Your task is to configure remote server authentication in all of the switches in your Brocade VCS Fabric running NOS 4.1.1.

Which protocols would you use to accomplish this task? (Choose three.)

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?

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?

You just connected a new Brocade VDX 6740T-1G switch to the top of rack. You want to connect two 40 GbE uplinks to VDX1 and two 40 GbE uplinks to VDX2. Two of the links come online and two of them are segmented.

What is a reason for this problem?

You are not receiving any encrypted SNMP notify messages from your Brocade VCS Fabric.

Which two actions must be configured in the fabric? (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?

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

Referring to the exhibit, which link would be blocked?

Which two Brocade SilkWorm switches are supported in a Brocade VCS Fabric? (Choose two.)

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

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

A customer has a four-port vLAG between two VDX switches and a server. Two of the four links are up but the vLAG will not come up.

VDX8770_3-131# show interface po 710

Port-channel 710 is up, line protocol is down (link protocol down)

Hardware is AGGREGATE, address is 0005.33d4.0d2c

Current address is 0005.33d4.0d2c

Interface index (ifindex) is 671089350

Minimum number of links to bring Port-channel up is 3

MTU 2500 bytes

LineSpeed Actual : Nil

Allowed Member Speed : 10000 Mbit

Priority Tag disable

IPv6 RA Guard disable

Last clearing of show interface counters: 2d05h53m

Queueing strategy: fifo

Receive Statistics:

0 packets, 0 bytes

Unicasts: 0, Multicasts: 0, Broadcasts: 0

64-byte pkts: 0, Over 64-byte pkts: 0, Over 127-byte pkts: 0

Over 255-byte pkts: 0, Over 511-byte pkts: 0, Over 1023-byte pkts: 0

Over 1518-byte pkts(Jumbo): 0

Runts: 0, Jabbers: 0, CRC: 0, Overruns: 0

Errors: 0, Discards: 0

Transmit Statistics:

0 packets, 0 bytes

Unicasts: 0, Multicasts: 0, Broadcasts: 0

Underruns: 0

Errors: 0, Discards: 0

Rate info (interval 299 seconds):

Input 0.000000 Mbits/sec, 0 packets/sec, 0.00% of line-rate

Output 0.000000 Mbits/sec, 0 packets/sec, 0.00% of line-rate

Time since last interface status change: 2d05h53m

What should the customer do to bring the vLAG online?

You need to deploy several FCoE initiators to communicate to FC targets.

Which two statements are true about deploying the solution? (Choose two.)

A Brocade VCS Fabric is running NOS 4.1.1 on two Brocade VDX 8770s and four Brocade VDX 6740s in logical chassis mode. You are required to deploy FCoE servers and Layer 3 features in the solution.

Which two licenses are required? (Choose two.)

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 see a large number of alerts in Brocade Network Advisor on a Brocade VDX switch. You are asked to gather information to send to technical support for analysis.

What information should you send? (Choose three.)

A customer implements a fault tolerant network and has requested that the switches in the data center support multiple management modules.

Which two Brocade VDX switches would you recommend for this requirement? (Choose two.)

After implementing a topology that requires edge loop detection, you detected a broadcast storm within the environment.

Which two required parameters must be configured? (Choose two.)

You added a new Brocade VDX 6740 to an existing Brocade VCS Fabric in your data center. You connected the VDX 6740 to ports 3/0/11 and 3/0/12 on the existing fabric. After the switch boots, you realize it does not join the fabric. You examine the ISL status on the fabric as shown in the exhibit.

sw0(conf-if-te-3/0/19)# do sh fabric islport

Name: sw0

Type: 95.2

State: Online

Role: Fabric Principal

VCS Id: 1

Config Mode:Distributed

Rbridge-id: 3

WWN: 10:00:00:05:33:46:71:61

FCF MAC: 00:05:33:46:71:61

Index Interface State Operational State

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

0 Te 3/0/1 Down

1 Te 3/0/2 Down

2 Te 3/0/3 Down

3 Te 3/0/4 Down

4 Te 3/0/5 Down

5 Te 3/0/6 Down

6 Te 3/0/7 Down

7 Te 3/0/8 Up ISL 10:00:00:05:33:5c:e1:5a "sw0" (downstream)(Trunk Primary)

8 Te 3/0/9 Up ISL (Trunk port, Primary is 3/0/8 )

9 Te 3/0/10 Down

10 Te 3/0/11 Up ISL (Trunk port, Primary is 3/0/12 )

11 Te 3/0/12 Up ISL segmented,(ESC mismatch, Config Mode)(Trunk Primary)

12 Te 3/0/13 Down

13 Te 3/0/14 Down

14 Te 3/0/15 Down

15 Te 3/0/16 Down

16 Te 3/0/17 Down

17 Te 3/0/18 Down

18 Te 3/0/19 Down

19 Te 3/0/20 Down

20 Te 3/0/21 Down

21 Te 3/0/22 Down

22 Te 3/0/23 Down

23 Te 3/0/24 Down

What is causing the problem?

You are designing a network with Brocade VCS Fabrics. You must support four 10 Gbps Brocade trunking ports in between the VDX switches. You need to determine which interfaces to connect.

What are two solutions? (Choose two.)

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.)

Your data center will include a Brocade VCS Fabric that has a Brocade VDX 8770-4 for access/aggregation and a VDX 8770-8 at the core. You must ensure that both chassis are assembled for highest availability. You have a total of four SFMs to deploy in the two chassis.

Which slot combinations provide the expected results?

Referring to the exhibit,

which configuration is valid?

According to Brocade best practices, which management utility should be used in a Brocade VCS Fabric?

Which criteria determines the principal RBridge election in a Brocade VCS Fabric?

Exhibit:

VDX11# show vcs detail

Config Mode : Distributed

VCS ID : 10

Total Number of Nodes : 3

Node :1

Serial Number : BWW2535G00E

Condition : Good

Status : Co-ordinator

VCS Id : 10

Rbridge-Id : 10

Co-ordinator : YES

WWN : 10:00:00:05:33:91:3D:F4

Switch MAC : 00:05:33:91:3D:F4

FCF MAC : 0C:B3:1E:F8:0C:B3

Internal IP : 127.1.0.10

Management IP : 10.255.248.24

Exhibit:

Referring to the exhibit, in which mode of operation is the active switch participating?

You are extending your Brocade VCS Fabric over 30 km long-distance ISLs.

Which two services are supported over these ISLs? (Choose two.)

What does a blinking red light mean next to a port on a Brocade VDX 6420?

You want to enable a Service Virtual Fabric to provide 802.1Q VLAN virtualization.

Which two statements are correct? (Choose two.)

You are attempting to configure an ISL port to carry tagged VLANs. The ISL is currently active and you can see your neighbor switch in the show fabric isl command output. You enter the switchport command on the ISL interface but receive an error.

What is the cause of the error?