DES-5121 Online Practice Questions and Answers

Which interface on a Dell EMC N-Series switch provides the most security for management?

A. VLAN

B. Ethernet

C. Loopback

D. Out-of-band

A customer is upgrading their campus network Access layer switches. They require 2-10GbE uplinks, 48-1GbE ports with PoE, and stacking capability of up to 12 units. Which Dell EMC N-Series model will meet the customer's requirements?

A. N1100 Series

B. N1500 Series

C. N2000 Series

D. N4000 Series

In a traditional campus network design using a three-tier hierarchical model, what are the key attributes of the Core layer in this model?

A. Provides a wide range of services, is highly available, and operates in an active-passive mode

B. Provides a limited set of services, is highly available, and operates in an always-on mode

C. Provides a wide range of services, is highly available, and operates in an always-on mode

D. Provides a limited set of services, is highly available, and operates in an active-passive mode

A network administrator added a new Dell EMC N-Series switch into their network with RSTP configured. The spanning-tree priority on all existing switches has been left at the default value. If the administrator wants this new switch to become the spanning tree root, which command should be used?

A. spanning-tree priority 4096

B. spanning-tree priority 32768

C. spanning-tree priority 36864

D. spanning-tree priority 61440

Two switches are part of the same VRRP group with the following priorities configured:

Switch1: Priority 110

Switch2: Priority 90

Switch2 is required to be the Master if interface GigabitEthernet 0/2 on Switch1 fails.

Which configuration should be part of the setup?

A. Switch1(conf-if-vlan10)# vrrp 1 track interface vlan 20 decrement 100 Switch1(conf-if-vlan10)# no vrrp 1 preempt

B. Switch2(conf-if-vlan10)# vrrp 1 track interface vlan 20 decrement 100 Switch2(conf-if-vlan10)# no vrrp 1 preempt

C. Switch1(conf-if-vlan10)# vrrp 1 track interface vlan 20 decrement 100 Switch1(conf-if-vlan10)# vrrp 1 preempt

D. Switch2(conf-if-vlan10)# vrrp 1 track interface vlan 20 decrement 100 Switch2(conf-if-vlan10)# vrrp 1 preempt

A Master switch failed in a Dell EMC N-Series three-unit switch stack and the Standby switch assumed the role of Master. What happens when the failed Master switch rejoins the stack after the new Master has taken over?

A. Switch joins the stack as the Standby

B. Switch must be manually configured to rejoin the stack

C. Switch joins the stack as a Member

D. Switch joins the stack and resumes as the Master

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

What is a recommended configuration for an MLAG peer-link on a Dell EMC N-Series switch?

A. Spanning tree must be disabled

B. Spanning tree must be enabled

C. Link must be a trunk port

D. Link must contain multiple interfaces

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

If VoIP traffic uses multiple QoS prioritization schemes, what refers to VoIP traffic?

A. COS 2, DSCP 22, AF

B. COS 2, DSCP 46, EF

C. COS 5, DSCP 42, AF D. COS 5, DSCP 46, EF