prepking 250-251 exam questions

8/6/2019 Prepking 250-251 Exam Questions

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Exam : Symantec 250-251

Title : Administration of HA Solutions

for UNIX (VCS 5.0)

Version : R6.1


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1. Which resource type attributes can be set in order to tune VCS failover characteristics? (Choose two.)

A. Flags

B. RestartLimit

C. ToleranceLimit

D. OfflineTimeout

E. OfflineMonitorInterval

Answer: BC

2. Which feature of VCS can prevent overloading of a system's resources in the event of service group

failover?

A. Parallel Service Groups

B. Capacities

C. Limits

D. Load Failover Policy

Answer: C

3. Which attribute enables VCS to bring a resource online after it goes offline unexpectedly and before

faulting the resource?

A. RestartLimit

B. OnlineRestartLimit

C. AutoRestartLimit

D. OnlineRetryLimit

Answer:A

4. Which VCS resource attribute setting prevents VCS from interpreting a Monitor entry point timeout as a

resource fault?

A. MonitorFault=0

B. MonitorFaultTimeout=240

C. FaultMonitor=240

D. FaultOnMonitor=4

Answer: D

5. Under which condition can a service group be AutoDisabled?A. when hashadow cannot restart HAD on a system

B. when the system is in a jeopardy membership

C. when a firm service group dependency exists between two service groups and the parent service group

fails

D. when a firm service group dependency exists between two service groups and the child service group

fails


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Answer:A

6. Which attributes impact service group failover? (Choose three.)

A. FailOver

B. AutoFailOver

C. Faulted

D. FaultPropagation

E. Frozen

Answer: BDE

7. Which resource type attributes can be set in order to tune VCS failover characteristics? (Choose two.)

A. AutoStart

B. ConfInterval

C. ConfTimeout

D. MonitorInterval

E. OfflineMonitorInterval

Answer: BD

8. Which statement is true about the violation trigger?

A. A violation trigger must be written as a shell script.

B. A violation trigger and notification are mutually exclusive.

C. A violation trigger is dependent on notification to work.

D. A violation trigger is automatically executed when events occur.

Answer: D

9. During a test of a NIC resource the VCS engine log indicates that the service group and the IP resource

enter the FAULTED state on all systems in the cluster. The NIC resource enters the ONLINE state after the

root cause of the fault is corrected. Which default attribute setting allows the service group to attempt to

start without manual intervention?

A. AutoStart

B. AutoClear

C. AutoRestart

D. AutoFailoverAnswer: C

10. Which types of monitoring can be performed on Oracle resources? (Choose two.)

A. detail monitoring

B. basic level monitoring

C. kernel level monitoring

D. specific monitoring


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E. service monitoring

Answer:AB

11. VCS is to be installed in a secure environment where remote installation between systems is impossible.

The VCS configuration parameters were captured in a file using the installation script on the first system.

What can be used to read the contents of the configuration file when executing locally on the remaining

systems?

A. -autoconfig

B. -configfile

C. -vcsconfig

D. -responsefile

Answer: D

12. Which text files are created at the end of a successful run of installvcs -installonly? (Choose three.)

A. log

B. response

C. gabtab

D. llttab

E. summary

Answer:ABE

13. Which components are installed when you execute the installvcs script? (Choose two.)

A. bundled agents

B. database agents

C. cluster file system

D. GAB driver

E. cluster volume manager

Answer:AD

14. Which conditions are recommended for a successful VCS patch installation? (Choose two.)

A. The clustered application must be shut down.

B. VCS must be shut down only on the server being patched.

C. VCS must be shut down on all cluster nodes.D. GAB and LLT must be shut down on all cluster nodes.

E. GAB and LLT must remain running and connected.

Answer: CD

15. Which directive in the llttab file defines a network interface for a heartbeat?

A. nic

B. link


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C. heartbeat

D. hbdev

Answer: B

16. You are adding a system to a running cluster. You have successfully performed these steps on the

system that you are adding:

1. installed, configured, and tested all application resources required

2. installed VCS

3. configured and started VCS communications (LLT and GAB)

What is the next step that you perform?

A. update the resource attributes to enable resources to run on the new system

B. update the service group attributes to enable groups to run on the new system

C. change the cluster attribute for VCS user names to match accounts on the new system

D. change the owner of the system attributes so that all cluster systems are the same

Answer: B

17. Which procedure must be followed to remove the resource type TypeA from an active VCS cluster?

A. remove all resources of TypeA, remove TypeA, and remove TypeA packages

B. remove TypeA, then execute the hatype esync command

C. stop VCS, remove all resources of TypeA, and start VCS

D. execute the hatype -remove command which will remove all the resources

Answer:A

18. What is the default level of authorization of a new VCS user?

A. Cluster Administrator

B. Cluster Operator

C. Cluster Guest

D. Group Administrator

E. Group Operator

Answer: C

19. When preparing to install VCS on the S1 and S2 systems, what should you do to verify software

compatibility? (Choose three.)A. check the VCS release notes for supported software

B. run the installvcs recheck S1 S2 command

C. let the installvcs script check compatibility at install

D. run the installvcs ompat S1 S2 command

E. check the Symantec Enterprise Support website

Answer:ABE


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20. You are installing a VCS upgrade that does not require a system reboot, but does require a VCS restart.

Which method maximizes user access to the clustered applications during the upgrade?

A. use the VCS rolling upgrade option which restarts VCS transparently

B. stop VCS using the orce option and then restart VCS on each system

C. evacuate service groups while upgrading one system at a time

D. stop VCS using the all option and then restart VCS on each system

Answer: B

21. What can a system administrator do to ensure that Veritas Volume Manager volumes are started by the

Volume resource rather than the DiskGroup resource?

A. make sure that all VCS volumes are present in /etc/vfstab

B. change the service group so that it excludes the DiskGroup resource

C. create a dependency from the DiskGroup resource to the Volume resource

D. change the default value of the StartVolumes attribute of the DiskGroup agent

Answer: D

22. What should you do when modifying a resource attribute in an online service group?

A. freeze the resource

B. disable the resource

C. disable the service group

D. take the service group offline

Answer: B

23. You need to remove a service group named GroupA. You have already removed all resources from the

group.

Which command do you use to remove the group?

A. hagrp emove GroupA

B. hagrp elete GroupA

C. hagrp emove group GroupA

D. hagrp elete group GroupA

Answer: B

24. Which command retrieves and archives detailed information about the VCS configuration?A. hasavecf

B. hasnap

C. hasave

D. haconfig

Answer: B

25. A resource named resA is added to a running service group.


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Which command can be used to manually monitor the new resource?

A. hares robe resA ys SystemA

B. hares orce resA ys SystemA

C. hares onitor resA ys SystemA

D. hares efreshinfo resA ys SystemA

Answer:A

26. The log files used to verify that a custom application is being properly monitored are located in which

directory?

A. /var/VRTSvcs/log/

B. /var/VRTSvcs/log/GroupA/

C. /var/VRTSvcs/agent/log/

D. /var/opt/VRTSvcs/log/agent/

Answer:A

27. The hastatus command shows the systems are in STALE_ADMIN_WAIT. What causes this?

A. The configuration was not closed before restarting HAD.

B. There is a syntax error in the main.cf configuration file.

C. There is a main.stale file in the configuration directory.

D. The main.cf is different on the systems in the cluster.

Answer: B

28. What is a required attribute of a service group?

A. AutoStart

B. AutoStartList

C. SystemList

D. SystemStartList

Answer: C

29. How many systems in the cluster can the NotifierMngr run on at one time?

A. 1

B. 32

C. 256D. an unlimited number

Answer:A

30. Given default settings for an online service group and its resources, which statements are true if the

resources are all set to non-critical? (Choose two.)

A. A resource fault leads to a faulted state for the resource.

B. A resource fault leads to the service group failing over.


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C. A resource fault will lead to the service group being taken offline.

D. A resource fault will leave the service group partially online.

E. A resource fault is detected and its agent's offline entry point is run.

Answer:AD

31. Which resource type enables VCS to determine the status of service groups with only persistent

resources?

A. GroupOnOff

B. Phantom

C. Proxy

D. ResOnOff

Answer: B

32. Which VCS bundled agent can be used to mirror the state of a NIC resource to another service group?

A. Proxy

B. Phantom

C. IPMultiNIC

D. Shadow

Answer:A

33. Which are functions of service group dependencies? (Choose two.)

A. provide a mechanism by which service groups can fail over based on network bandwidth availability

B. control VCS user parameters following events like faults, auto group start, and system shutdown

C. provide a mechanism by which two service groups can be linked by rules similar to the way that

resources are linked

D. provide a mechanism by which two service groups can change their resource structure during failover

E. control where VCS brings a group online following events like faults, auto group start, and system

shutdown

Answer: CE

34. Which directive is used in /etc/llttab to define a low-priority link?

A. link

B. lowpri-linkC. link-lowpri

D. lowpri

Answer: C

35. How would you enable the setting of different values for the Device attribute of the NIC resource named

NetNIC?

A. hares -enable NetNIC Device


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B. hares -localize NetNIC Device

C. hares -local NetNIC Device

D. hares -onlinelocal NetNIC Device

Answer: C

36. In a 5-node cluster with two configured heartbeat links, to what should you set the GAB seeding value?

A. 2

B. 3

C. 4

D. 5

Answer: D

37. Given the following lltstat output:

LLT node information:

Node State Link Status Address

* 0 SystemA OPEN

nic0 UP 00:03:BA:37:20:84

nic1 UP 00:03:BA:37:20:85

1 SystemB OPEN

nic0 UP 00:03:BA:36:E7:B0

nic1 UP 00:03:BA:36:E7:B1

Which statement is true?

A. The heartbeat links on SystemB are configured on nic0 and nic1.

B. The heartbeat links on SystemA are configured on nic0 and nic1.

C. The heartbeat links are configured using crossover cables.

D. There is a low-priority heartbeat link configured.

Answer: B

38. Proxy resources can reference which type of resources? (Choose three.)

A. NIC

B. IP

C. FileOnOnlyD. FileOnOff

E. ElifNone

Answer:ACE

39. Under which condition will the service group attempt to fail over with default service group attribute

settings except FaultPropagation=0?

A. system failure


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