EMC EMC Other Certification DES-5121 Questions & Answers

• Question 11:

  Which type of an attack is considered MAC poisoning?

  A. Duplicating the MAC address of a legitimate device so frames are forwarded to the incorrect port

  B. Host imitating a trunk port by using tagging and trunking protocols

  C. Flooding MAC addresses to the switch to fill its CAM table, causing the switch to act as a hub

  D. Host on a VLAN gaining unauthorized access to other VLANs on the network

  Correct Answer: A

• Question 12:

  N4032F#show interfaces status

  

  N4032F#show interfaces port-channel 1

  

  Hash Algorithm Type 1 - Source MAC, VLAN, EtherType, source module and port Id 2 - Destination MAC, VLAN, EtherType, source module and port Id 3 - Source IP and source TCP/UDP port 4 - Destination IP and destination TCP/UDP port 5 - Source/Destination MAC, VLAN, EtherType, source MODID/port 6 - Source/Destination IP and source/destination TCP/UDP port 7 - Enhanced hashing mode

  N4032F#

  A Dell EMC N-Series switch has been configured with a 2-member port-channel; however, only one link is currently active.

  Based on the exhibit, why is only one link active?

  A. Minimum links value for Po1 is set to "1"

  B. Hash algorithm is configured for active-passive

  C. Te1/0/6 interface is administratively disabled

  D. Speed setting is different between ports

  Correct Answer: D

• Question 13:

  N4032F#show interfaces status N4032F#show interfaces port-channel 1

  

  

  Hash Algorithm Type 1 - Source MAC, VLAN, EtherType, source module and port Id 2 - Destination MAC, VLAN, EtherType, source module and port Id 3 - Source IP and source TCP/UDP port 4 - Destination IP and destination TCP/UDP port 5 - Source/Destination MAC, VLAN, EtherType, source MODID/port 6 - Source/Destination IP and source/destination TCP/UDP port 7 - Enhanced hashing mode

  A network administrator has reported poor network performance to an application server. After reviewing the logs, you determine that the server is using 100 percent of the available bandwidth on its network port. As shown in the exhibit, you configure a second link and a 2-member port-channel to an application server in an effort to increase performance. However, during testing, the network performance has not improved.

  What is a possible reason why there has been no increase in the performance?

  A. Application is using a single I/O flow

  B. File server needs to be configured with LACP

  C. Minimum links needs to be increased to "2"

  D. Port-channel needs load balancing enabled

  Correct Answer: A

• Question 14:

  A Dell EMC N-Series switch is configured to uplink to a customer switch using two separate 4-port port-channels configured as trunks. Both switches are configured with 16 VLANs and RSTP.

  How will VLAN traffic be distributed across the port-channels?

  A. All VLANs are allowed across a single port-channel

  B. A single VLAN is allowed across each port-channel

  C. All VLANs are allowed across both port-channels

  D. Eight VLANs are allowed across each port-channel

  Correct Answer: A

• Question 15:

  A network administrator is planning a PoE budget for their network.

  What is the PoE source maximum power budget for a Class 4 end device?

  A. 12.95 watts

  B. 15.4 watts

  C. 34.2 watts

  D. 60 watts

  Correct Answer: C

  Reference: http://ftp.dell.com/manuals/all-products/esuprt_ser_stor_net/esuprt_networking/esuprt_net_fxd_prt_swtchs/networking-n3000-series_User's-Guide10_en-us.pdf page 82

• Question 16:

  Which function does a VRRP backup router perform?

  A. Sends keepalive advertisements to the other backup routers

  B. Processes and responds to ARP requests

  C. Forwards packets to the Master with a destination IP of the virtual IP address

  D. Receives packets with the virtual MAC address as the destination for other backup routers

  Correct Answer: D

• Question 17:

  Which commands should a network administrator use to configure a RADIUS server on a Dell EMC N-Series switch?

  A. Switch-1(config)# radius 10.1.1.111 Switch-1(config-radius)# name RADIUS-Server Switch-1(config-radius)# key secretkey

  B. Switch-1(config)# radius server auth 10.1.1.111 Switch-l(config-radius)# name RADIUS-Server Switch-1(config-radius)# key "secretkey"

  C. Switch-1(config)# radius auth 10.1.1.111 Switch-1(config-radius)# name "RADIUS-Server" Switch-1(config-radius)# key "secretKey"

  D. Switch-1(config)# radius auth server 10.1.1.111 Switch-1(config-radius)# name RADIUS-Server Switch-1(config-radius)# key "secretKey"

  Correct Answer: B

• Question 18:

  Which AAA method is only used for 802.1x and never returns an error?

  A. local

  B. enable

  C. ias

  D. line

  Correct Answer: C

  Reference: http://ftp.dell.com/manuals/all-products/esuprt_ser_stor_net/esuprt_networking/powerconnect-8100_concept%20guide2_en-us.pdf page 209

• Question 19:

  Which Layer 3 protocol does MLAG support?

  A. None

  B. Static Routing

  C. OSPF

  D. RIPv2

  Correct Answer: A

  Reference: http://files.rakurs.su/IT/Kommytatory/Dell/N4000/powerconnect_nx00-usingmlag-whtppr_en-us.pdf

• Question 20:

  In a PoE environment, what information does the Network Policy TLV exchange between the PSE and PD?

  A. Required Power, VLAN ID, and DSCP Value

  B. VLAN ID, IEEE Priority, and DSCP Value

  C. IEEE Priority, Required Power, and VLAN ID

  D. DSCP Value, Required Power, and IEEE Priority

  Correct Answer: B

  Reference: http://ftp.dell.com/manuals/all-products/esuprt_ser_stor_net/esuprt_networking/poweredge-m-io-aggregator_Concept-Guide4_en-us.pdf page 162