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QFabric, Specialist (JNCIS-QF)

Question No: 1

You need to determine whether there have been core dumps from the fabric administrator within the last 24 hours.

Which command should you use?

  1. show system core-dumps component FM-0

  2. show system core-dumps | match last day

  3. show system core-dumps

  4. find /var/ -ctime -1 -a -iname quot;*core*quot;

Answer: A

Question No: 2

You are installing a QFX3000-G QFabric system. Upon system boot, you notice no Node devices show as connected to the system.

What are two explanations for this condition? (Choose two.)

  1. The Node devices are connected to ports 42 through 47 on the control plane switches.

  2. The Node devices are connected to ports 0-5 on the control plane switches.

  3. The Node devices#39; C0 and C1 ports are connected to the control plane switches.

  4. The Node devices#39; C0 and C1 ports are connected to the Interconnect devices.

Answer: A,D

Question No: 3

Which two features do Fibre Channel over Ethernet VLANs support? (Choose two.)

  1. Spanning Tree Protocol

  2. Internet Group Management Protocol

  3. Link Aggregation Group

  4. Fabric Short Path First

Answer: A,C

Question No: 4

Which statistics counter shows that a server connecting to a server Node group is asserting flow control?

  1. MAC control frames 237 0

  2. MAC pause frames 302 0

  3. Jabber frames 5000

  4. Code violations 10

Answer: B

Question No: 5

The Node device LC0 is receiving packets destined to the host on the Node device LC1. The source IP address of the packets is 20.0.0.1 and the destination IP address is 77.0.0.1.

How do you verify that the route to destination 77.0.0.1 exists in the RPDf table on LC0?

  1. Use the show route 77.0.0.1 command on Node device LC0.

  2. Use the show route table inet.0 command on Node device LC0.

  3. Use the show route fabric table default.bridgevpn.0 77.0.0/24 extensive command on Node device LC0.

  4. Use the show route fabric table default.inet.0 77.0.0/24 extensive command on Node device LC0.

Answer: D

Question No: 6

What is the number of Node devices supported in a network Node group?

  1. 2

  2. 4

  3. 8

  4. 16

Answer: C

Question No: 7

Which three Qfabric system functions run within the Director group software? (Choose three.)

  1. system discovery

  2. exchange of reachability information

  3. Director group manager

  4. fabric management

  5. path discovery

Answer: A,B,E

Question No: 8

– Exhibit – [edit]

user@qfabric# show chassis node-group NW-NG-0 { aggregated-devices { ethernet {

device-count 1;

}

}

}

node-group RSNG-1 { aggregated-devices {

ethernet { device-count 48;

}

}

}

[edit]

user@qfabric# show interfaces

NW-NG-0:ae3 {

unit 0 {

family ethernet-switching {

}

}

}

RSNG-1:ae47 {

unit 0 {

family ethernet-switching {

}

}

}

[edit]

user@qfabric# show vlans v50 {

vlan-id 50; interface {

Node-0:ge-0/0/12.0; RSNG-1:ae47.0;

}

}

v51 {

vlan-id 51; interface {

Node-1:ge-0/0/12.0; RSNG-1:ae47.0;

}

}

– Exhibit –

Click the Exhibit button.

Referring to the exhibit, which statement is true?

  1. The configuration file will commit and will treat RSNG-1:ae47 as an access port associated with the default VLAN.

  2. The configuration file will not commit because of the limited number of aggregated interfaces associated with the network Node group.

  3. The configuration file will not commit because RSNG-1:ae47 is configured as an access port and is associated with multiple VLANs.

  4. The configuration file will commit but NW-NG-0:ae3 will not be activated because of the current number of aggregated interfaces associated with the network Node group.

Answer: C

Question No: 9

What are two internal protocols in a QFabric system? (Choose two.)

  1. data center bridging protocol

  2. component monitoring protocol

  3. topology discovery protocol

  4. fabric control protocol

Answer: C,D

Question No: 10

A customer needs to plan a QFabric system to support one hundred 10 GbE ports and twenty-eight 8 Gb Fibre Channel ports for a data center consolidation project. The infrastructure should support up to twelve 40 GbE ports in the future.

Which QFabric system configuration of Node devices will support the customer#39;s requirements?

  1. 4 QFX3500 devices

  2. 3 QFX3500 devices and 1 QFX3600 device

  3. 4 QFX3600 devices

  4. 2 QFX3500 devices and 2 QFX3600 devices

Answer: B

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