QUESTION 1
When configuring LLDP on Cisco Nexus 5548 Switch, what is the purpose of LLDP hold time global configuration command?
|
A. |
LLDP holdtime option is to set the length of time in milliseconds that a device should save LLDP information received before discarding it |
|
B. |
LLDP holdtime option is to set the length of time in seconds that a device should save LLDP information received before discarding it |
|
C. |
LLDP holdtime option to is the length of time in milliseconds to wait before performing LLDP initialization on any interface |
|
D. |
LLDP holdtime option to is the length of time in seconds to wait before performing LLDP initialization on any interface |
Correct Answer: B
Explanation:
http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/layer2/521_n1_2/b_5k_Lay er2_Config_521N12_chapter_01011.pdf (page 2, see the table, step 2)
QUESTION 2
A customer is troubleshooting FCoE in its network and sees pause counters increasing when it runs the command show interface eth1/5. What is the cause of this?
|
A. |
The CNA connected to the switch is sending Xon or Xoff PFC frames. |
|
B. |
The HBA connected to the switch is sending Xon or Xoff PFC frames. |
|
C. |
Pause counters increase regularly; there is nothing to be concerned about. |
|
D. |
A firmware upgrade on the Fibre Channel adapter that is connected to the switch will fix this issue. |
Correct Answer: A
QUESTION 3
On a Cisco Nexus 5500 Series Switch, the VFC is stuck in the initializing state. Which QoS statements must be configured for FCoE to operate?
|
A. |
system qos service-policy type qos input fcoe-default-in-policy service-policy type queuing input fcoe-default-in-policy service-policy type queuing output fcoe-default-out-policy service-policy type network-qos fcoe-default-nq-policy |
|
B. |
system qos service-policy type qos input fcoe-default-in-policy service-policy type queuing input fcoe-default-in-policy service-policy type qos input default-in-policy service-policy type network-qos default-nq-policy |
|
C. |
system qos service-policy type qos input default-in-policy service-policy type queuing input default-in-policy service-policy type queuing output default-out-policy service-policy type network-qos default-nq-policy |
|
D. |
system qos service-policy type qos input default-in-policy service-policy type queuing input default-in-policy service-policy type queuing output fcoe-default-out-policy service-policy type network-qos fcoe-default-nq-policy |
Correct Answer: A
QUESTION 4
One of your Cisco Nexus Series interfaces has become errdisabled with the error message “DCX- No ACK in 100 PDUs”. How often are these acknowledgements exchanged?
|
A. |
15 seconds |
|
B. |
30 seconds |
|
C. |
45 seconds |
|
D. |
60 seconds |
Correct Answer: B
Explanation:
https://supportforums.cisco.com/thread/2174593
QUESTION 5
Refer to the exhibit. What command should you execute next in resolving a lock failure?
|
A. |
ntp execute |
|
B. |
ntp commit |
|
C. |
ntp lock |
|
D. |
ntp help |
|
E. |
ntp detail |
Correct Answer: B
QUESTION 6
Which statement is true regarding how OTV edge devices will react based on the configuration of the VLANs being extended across the overlay network?
|
A. |
Any VLANs not extended will not be populated in the local OTV route table. |
|
B. |
Only the same-site edge AED device controls which VLANs are to be extended. |
|
C. |
Any extended VLANs will not be populated in the remote OTV route table. |
|
D. |
By default, all VLANs on an edge device will be extended. |
Correct Answer: A
QUESTION 7
Which statement is true regarding FHRP considerations for an OTV network?
|
A. |
VRRP is recommended over HSRP or GLBP. |
|
B. |
Using an AED eliminates the need for FHRP. |
|
C. |
FHRP should be limited to only the internal OTV interfaces. |
|
D. |
Filtering FHRP across the OTV network is recommended to avoid a suboptimal path due to the election of a single default gateway. |
Correct Answer: D
QUESTION 8
FHRP isolation between data center networks that are connected over an OTV network is a two- step process; the first prevents FHRP peering by filtering FHRP control packets across the overlay via a VLAN ACL. What is the second step?
|
A. |
Filter the FHRP MAC addresses that are being advertised by IS-IS. |
|
B. |
Remove the FHRP VLAN from the OTV extend-vlan list. |
|
C. |
Apply a VLAN to a route map that is applied to the OTV routing process. |
|
D. |
Disable the auto-population of the OTV MAC address table. |
Correct Answer: A
QUESTION 9
In order to fulfill the requirement to prevent the creation of end-to-end loops across a multihomed OTV network that connects two different data centers, what is the solution to this problem?
|
A. |
prioritize the transmission of STP BPDUs across the overlay |
|
B. |
design the DCI connectivity as a hub and spoke |
|
C. |
define a conservative TTL for all packets traversing the OTV network |
|
D. |
enable AED on a per-VLAN basis between each OTV edge device with the same site ID |
Correct Answer: D
QUESTION 10
Which statement would explain why the overlay interface on an OTV edge device is not in the up state?
|
A. |
The site identifiers are identical within a multihomed site. |
|
B. |
Multicast groups are not mapped to a range of SSM addresses to carry the multicast traffic. |
|
C. |
An adjacency server is not configured for connectivity over a multicast transport. |
|
D. |
The OTV IS-IS metrics do not match across all adjacent OTV edge devices. |
Correct Answer: B
Download Latest Complete Collection of CCNP Data Center 642-980 Real Exam,pass exam 100%.
Ensurepass Cisco Certifications Exam Questions and Answers
Ensurepass CCNP Data Center Exams Questions and Answers