DES-5221 実際試験問題と解答 - 模擬練習 - 受験自信を増やす

Question No : 1
There is a spanning tree mismatch at the global level. PVST+ is configured on a VLT peer. All VLT port channels go down on both VLT peers. A syslog error message is generated.
What is the correct action to resolve the issue?

A.Verify the VLT LAG ID is configured correctly on both VLT peers.
B.Enable RSTP on both VLT peers.
C.Use the show VLT detail and show VLT brief commands to view the VLT port channel status information.
D.Perform a mismatch check after the VLT peer is established.

正解:
Explanation:
Reference: https://www.dell.com/support/manuals/us/en/04/poweredge-fx2/dell%20fn%20ioa% 20config_9.8.0.0_pub-v1/troubleshooting-vlt?guid=guid-9978ac1f-1305-4590-9c64bb35bd6e012a&lang=en-us

Question No : 2
The network administrator wants to configure RADIUS authentication for VTY access, and for console access to use the local configuration.
Which two commands should be used to achieve this goal?

A.aaa authentication login vty group radius aaa authentication login console local
B.aaa authentication login default group radius aaa authentication login console local
C.aaa authentication login vty radius aaa authentication login console group local
D.aaa authentication login default group radius aaa authentication login console group local

正解:

Question No : 3
Refer to the exhibit.

Which configuration will allow S1 to ping S2’s Lo0 address?

A.S1(config-router)# ip route 144.254.32.1 192.168.32.2/32
B.S1(config-router)# ip route 192.168.32.2 144.254.32.1/32
C.S1(config)# ip route 144.254.32.1/32 192.168.32.2
D.S1(config)# ip route 192.168.32.2 144.254.32.1/32

正解:

Question No : 4
A network administrator is designing a Layer 2 topology and requires separate spanning-tree roots to avoid having a given port blocked for all instances.
Which spanning-tree protocols will meet this need?

A.STP & RSTP
B.RSTP-PV & MSTP
C.STP & RSTP-PV
D.RSTP & MSTP

正解:

Question No : 5
Using the MAC 8c-ec-4b-5b-61-9d, what is a valid EUI-64 link local address?

A.2001::a9:8eec:4bff:fc5b:619d
B.fe80::a9:8cec:4bff:fe5b:619d
C.ff80:a9:8eec:4bff:fe5b:619d
D.fe80::a9:8eec:4bff:fe5b:619d

正解:

Question No : 6
When configuring a vrf instance for the management interface that has been in use, what step must be done first to configure it?

A.Configure a management route
B.Remove the default route
C.Remove all configured settings
D.Configure an IP Address

正解:

Question No : 7
To which IEEE standard are dynamic LAGs compliant on Dell EMC Networking OS10 switches?

A.802.3af
B.802.3ad
C.802.3ac
D.802.3ae

正解:

Question No : 8
Refer to the exhibit.

What is the VRRP state of OS10-A after a router with a default VRRP admin priority with VRID100 comes online?

A.master-state
B.standby-state
C.backup-state
D.primary-state

正解:

Question No : 9
How does a DHCP Client make a request to a DHCP server following an offer?

A.Multicast
B.ACK
C.Broadcast
D.Unicast

正解:

Question No : 10
Which command is used to create a non-default VRF instance?

A.ip vrf
B.ip vrf forwarding new-vrf
C.ip vrf forwarding vrf-test
D.interface ethernet 1/1/1

正解:

Question No : 11
Which best describes traffic flow in a campus network environment?

A.North-East
B.South-West
C.East-West
D.North-South

正解:

Question No : 12
What is an advantage of UFD?

A.Reduces connectivity loss.
B.Detects the loss of downstream connectivity.
C.Reduces network complexity.
D.Prevents the loss of upstream connectivity.

正解:

Question No : 13
A customer reports they can no longer access their services and a network administrator has been assigned to investigate. A UFD disabled error status appears on all ports.
What caused the issue?

A.Spanning tree Loop-guard was implemented on the uplink-state group.
B.One of the upstream interfaces is an uplink-state group went down.
C.There was no issue; this is normal behavior.
D.Both a port channel and its members were assigned to an uplink-state group.

正解:

Question No : 14
What is the function of the authentication service?

A.Validates the user identity
B.Determines switch management commands
C.Validates switch order
D.Determines which services the user is enabled to access

正解:

Question No : 15
Which type of protocol is OSPF and what metric does it use to determine best path?

A.Link-state protocol that uses a concept of cost as metric
B.Hybrid protocol that uses hop count as a metric
C.Path vector protocol that uses the Dijkstra algorithm as a metric
D.Distance Vector protocol that uses bandwidth and delay as metric

正解:

EMC DES-5221 問題練習