EMC DCS-IE Datacenter Networking DES-5221 Questions & Answers

• Question 21:

  In a PIM Sparse Mode (PIM-SM) based multicast topology, what function does the Rendezvous Point provide?

  A. The node is used to provide IGMP snooping across a layer 3 boundary.

  B. The root node of the source tree topology is used to provide routing between the source and receiver.

  C. The root node of the shared tree topology is used to provide routing between the source and receiver.

  D. The node is used to provide IGMP snooping on a layer 2 shared segment.

  Correct Answer: C

• Question 22:

  A customer has disabled LLDP on the management interface of the switch. What is the proper command to re-enable it?

  A. OS10(config)# lldp enable OS10(config)#lldp transmit OS10(config)#lldp receive

  B. OS10(config)# interface mgmt 1/1/1 OS10(conf-if-ma-1/1/1)#lldp med enable OS10(conf-if-ma-1/1/1)#lldp timer 10

  C. OS10(config)# interface mgmt 1/1/1 OS10(conf-if-ma-1/1/1)#lldp transmit OS10(conf-if-ma-1/1/1)#lldp receive

  D. OS10(config)# interface mgmt 1/1/1 OS10(conf-if-ma-1/1/1)#lldp tly-select OS10(conf-if-ma-1/1/1)#lldp dot1tlv

  Correct Answer: C

  Reference: https://topics-cdn.dell.com/pdf/networking-s5148f-on_connectivity-guide4_en-us.pdf page 197

• Question 23:

  A network administrator enters the BGP command neighbor 10.0.2.1. The BGP router does NOT have any route to the 10.0.2.0 network. What will happen?

  A. The router will form a successful adjacency with its 10.0.2.1 neighbor. The BGP state will be listed as connect.

  B. The router will not form a successful adjacency with its 10.0.2.1 neighbor.

  C. It will send gratuitous ARP messages to attempt to discover a route to its 10.0.2.1 neighbor.

  D. It will send an ICMP packet to attempt to reach its 10.0.2.1 neighbor.

  Correct Answer: B

• Question 24:

  What is required to enable ECMP in BGP?

  A. OSPF must install equal cost paths in the routing table for BGP to use ECMP.

  B. Maximum-paths and multipath-relax commands.

  C. Sub-interfaces must be configured on the physical interface running BGP.

  D. ECMP is not possible in BGP.

  Correct Answer: B

• Question 25:

  Which configuration supports tagged frames on VLAN 20 and untagged frames on VLAN 5?

  A. interface ethernet 1/1/9 switchport trunk mode allowed vlan 20 switchport access mode vlan 5 no shutdown

  B. interface ethernet 1/1/9 switchport trunk allowed vlan 20 switchport access vlan 5 switchport mode trunk

  C. interface ethernet 1/1/9 switchport trunk mode allowed vlan 20 switchport access vlan 5 no shutdown

  D. interface ethernet 1/1/9 switchport mode trunk switchport trunk allowed vlan 20 switchport access vlan 5

  Correct Answer: D

• Question 26:

  When creating an alias in OS10 what is the maximum number of variable input parameters that can be defined?

  A. 6

  B. 9

  C. 3

  D. 12

  Correct Answer: B

  Reference: https://topics-cdn.dell.com/pdf/networking-s5148f-on_connectivity-guide4_en-us.pdf page 51

• Question 27:

  Which LSA types are used in a single area OSPF topology?

  A. 4, 5 and 7

  B. 1 and 7

  C. 1, 2 and 5

  D. 2, 3 and 5

  Correct Answer: C

• Question 28:

  An administrator is implementing VLT in OS10. What type of port-channel must they configure for the VLTi?

  A. Administrator needs to configure a LACP Port-Channel.

  B. Trunking and one (1) native VLAN need to be defined on the port-channel.

  C. None, a port-channel is created automatically during VLT discovery.

  D. Administrator needs to configure a static Port-Channel.

  Correct Answer: C

• Question 29:

  

  Refer to the exhibit.

  A default route exists on OS10-C that points all internet traffic towards 10.0.13.3 on OS10-B. A network administrator needs to re-route internet traffic only sourced from Host-1 to 10.0.12.2 on OS10-A instead. What feature can the administrator implement to accomplish this goal?

  A. Static Default Routing

  B. OSPF Cost Manipulation

  C. Source-Based Routing

  D. Policy-Based Routing

  Correct Answer: D

• Question 30:

  How are multiple hardware based ACLs filtered?

  A. NTP

  B. DHCP

  C. NPU

  D. IP

  Correct Answer: C

  Reference: https://www.dell.com/support/manuals/us/en/04/networking-z9264f-on/os10-enterprise-user-guide-10_4_2-pub/access-control-lists?guid=guid-c220a14f-c6cb-4950-ba88-15cbd59316aaandlang=en-us