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Code d'Examen: HP0-P19
Nom d'Examen: HP (HP-UX High Availability Using Serviceguard v18)
Questions et réponses: 145 Q&As
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NO.1 What is the function of the lock disk or Quorum server in a Serviceguard cluster?
A. prevents split brain syndrome
B. determines which node becomes the cluster coordinator
C. ensures that quorum is present the entire time the cluster is up
D. keeps a record of volume groups that are locked in exclusive mode
Answer: A
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NO.2 Which components are considered potential single points of failure within a single HP-UX server?
(Select four.)
A. SAN
B. memory
C. backplane
D. DVD drive
E. LAN interfaces
F. mirrored root disks
G. system adminstrator
H. redundant power supply
I. Fibre Channel Host Bus Adapter
Answer: BCEI
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NO.3 What are potential single points of failure (SPOF) in an HP-UX system? (Select four.)
A. hard disk drive
B. operating system
C. system administrator
D. redundant power supply
E. CPU on a Uniprocessor system
F. multi-port network interface card
G. alternate link to a disk in a shared volume group
Answer: ABEF
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NO.4 What are potential single points of failure (SPOF) in an HP-UX environment? (Select two.)
A. backplane of a cell based server when two vPARs are clustered with Serviceguard over two physical
nodes
B. backplane of a cell based server when two vPARs are clustered with Serviceguard on the same
physical node
C. cellboard on a partioned node with two nPARs that are clustered with Serviceguard on the same
physical node
D. cellboard on a single-nPar node with two vPARs that are clustered with Serviceguard on the same
physical node
Answer: BD
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NO.5 What are advantages of RAC cluster? (Select three.)
A. increases user scalability
B. increases database security
C. supports larger database size
D. increases hardware scalability
E. increases database availability
F. increases application scalability
G. decreases package failover time
Answer: DEF
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NO.6 Which failure scenarios are transparent to application users when the application is running as a
Serviceguard package? (Select two.)
A. A LAN interface fails on a node where no package is running.
B. A complete power outage in the computer room where the cluster is located.
C. A redundant power supply fails in the cluster node running the application package.
D. Manual application package switch because of planned downtime on the cluster node.
E. The cluster node running the application package crashes because of a memory multibit error.
Answer: AC
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NO.7 Your customer wants you to design an HA solution with HP-UX and Serviceguard that runs the
customer's Business Critical SAP production system as Serviceguard package, pkgA, and the customer's
Development SAP system as Serviceguard package, pkgB.
You design two vPars (vpar1 and vpar2) on serverA and two vPars (vpar3 and vpar4) on serverB.
What is a good design for this cluster to provide the maximum high availability? (Select two.)
A. Cluster vpar1 and vpar2 and run pkgA on these clustered vPars.
B. Cluster vpar1 and vpar3 and run pkgA on these clustered vPars.
C. Cluster vpar2 and vpar4 and run pkgB on these clustered vPars.
D. Cluster vpar3 and vpar4 and run pkgB on these clustered vPars.
Answer: BC
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NO.8 An e-ticketing application based on Apache webserver for a busy tourist market experiences failures
during peak season, resulting in loss of revenues.
Which product combination implements a solution that improves availability of the e-ticketing application?
(Select two.)
A. HP Serviceguard
B. Continental Clusters
C. HP Serviceguard Extension for SAP
D. Enterprise Cluster Master Toolkit
E. HP Serviceguard Extension for RAC
Answer: AD
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NO.9 In the context of high availability, which statements are true regarding split-brain syndrome? (Select
two.)
A. It can occur on a 2-node cluster.
B. It can occur on a 3-node cluster.
C. It allows different applications to simulatneously access the same disk.
D. It allows different partitions to access the same disk without knowledge of each other.
E. It is caused when two clusters initiate an application that accesses the same disk simultaneously.
F. It is caused when two equal size sub-clusters form from a single cluster without knowledge of each
other.
Answer: AF
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NO.10 What are the advantages with respect to application availability for a customer using Serviceguard in
an HA environment? (Select two.)
A. Application database corruptions will be minimized.
B. An upgrade of the operating system will only require a package switch.
C. A power outage in the customer's computer room will not affect the users.
D. Rolling upgrades of the application can be performed in a Serviceguard environment.
E. A failure in a redundant power supply will only cause a package switch to the adoptive node.
Answer: BD
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NO.11 Which configurations are valid for a Serviceguard environment in combination with Integrity Virtual
machines? (Select two.)
A. Configuration 1
B. Configuration 2
C. Configuration 3
D. Configuration 4
Answer: AB
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NO.12 What are the main features of OL* (OnLine Replacement, Addition, and Deletion)? (Select two.)
A. ability to replace a cell board on an HP-UX system that supports OL*
B. ability to repair a PCI I/O card on an HP-UX system that supports OL*
C. ability to online replace a PCI I/O card on an HP-UX system that supports OL*
D. ability to online remove a PCI(-X) card on an HP-UX system that supports OL*
E. ability to online replace an HP-UX system that supports OL* while it is configured in a Serviceguard
cluster
F. ability to online remove a PCI(-X) LAN card and afterwards to online add a PCI(-X) FC HBA in the same
PCI(-X) slot on an HP-UX system that supports OL*
Answer: CD
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NO.13 Which situations does Serviceguard provide high availability solutions for? (Select two.)
A. LAN card failure
B. application failure
C. client subnet goes down
D. poor application performance
E. failure of one of the LUN paths to shared storage
Answer: AB
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NO.14 When a Serviceguard package fails over in a highly available vPar environment, Workload Manager
(WLM) integrates with Serviceguard and disaster tolerant solutions by doing which process?
A. WLM creates a new vPar to assume the load of the failed partition.
B. cmcld creates a new vPar to assume the load of the failed partition.
C. WLM moves processor resources from one virtual partition to another.
D. cmcld moves processor resources from one virtual partition to another.
E. WLM can move a Serviceguard package from one virtual partition to another.
Answer: C
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NO.15 Which statements are true regarding High Availability (HA)? (Select three.)
A. Downtime is any amount of time when the application is unavailable (planned or unplanned).
B. HA systems provide a disaster tolerant solution that allows recovery from the loss of an entire data
center.
C. Unplanned downtime is be caused by a failure of a non-redundant hardware component on a cluster
node.
D. Metrocluster and Extended Campus Cluster solutions provide the same level of protection as a local
HA solution in case of environmental disasters.
E. HA is a combination of environmental, process, software, and computing hardware enhancements that
maximize the time that the application and system are available.
F. Highly available systems typically contain data redundancy through mirroring or RAID, some kind of
backup system hardware, power outage protection, and multiple LANs.
Answer: AEF
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NO.16 What does OL* (OnLine Replacement, Addition, and Deletion) provide?
A. online replacement, addtion, and deletion of vPARs
B. online replacement, addition, and deletion of PCI(-X) I/O cards
C. online replacement, addition, and deletion of cell boards in cell based systems
D. online replacement, addition, and deletion of PCI(-X) I/O cards and core I/O cards
Answer: B
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NO.17 In a Serviceguard implementation for concurrent instances of an Oracle RAC Database, which type of
shared storage management can be used on all nodes in the cluster? (Select three.)
A. Cluster File System (CFS)
B. Veritas Volume Manager (VxVM)
C. Network Attached Storage (NAS)
D. Shared Logical Volume Manager (SLVM)
E. Standard Logical Volume Manager (LVM)
F. Enterprise Logical Volume Manager (ELVM)
G. Oracle Automatic Storage Management (ASM)
Answer: ADG
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NO.18 Consider the following entry in the /etc/rc.config.d/cmcluster file.
AUTOSTART_CMCLD=1
Which parameter in the cluster ascii file is affected by this entry?
A. CMCLD_TIMEOUT
B. CMCLD_RUN_START
C. AUTOSTART_CMCLD
D. AUTOSTART_TIMEOUT
E. HEARTBEAT_INTERVAL
Answer: D
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NO.19 In the context of high availability, which phrase describes Mean Time Between Failure (MTBF)?
A. mean time to restart a failed service
B. mean time to repair a server after a failure
C. mean time to restart a server after a failure
D. mean time a system provides service without failure
Answer: D
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NO.20 What is the purpose of the cluster interconnect in a Serviceguard extension for Oracle RAC
implementation? (Select two.)
A. Nodes can use it for cluster heartbeat traffic.
B. Nodes coordinate the shared storage status.
C. Oracle single instances coordinate their online/offline status.
D. Oracle RAC instances coordinate the consistency between their Oracle buffer cache.
Answer: AD
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NO.21 Which application templates are included in the Enterprise Cluster Master Toolkit (ECMT)? (Select
four.)
A. NFS
B. SAP
C. SAPDB
D. HP Tomcat
E. HP Apache
F. HP CIFS/9000
G. Oracle 9i and 10g
Answer: DEFG
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NO.22 A customer has a 2-node HP Serviceguard cluster running a mission critical Oracle database and a
financial application. At the end of each month the server utilization spikes with no idle CPU resources
and there is a need for additional capacity.
Which HP Virtual Server Environment offering provides additional capacity and is best in this situation?
A. Capacity Advisor
B. Instant Capacity (iCAP)
C. Integrity Virtual Machines
D. Global Workload Manager (gWLM)
E. Temporary Instant Capacity (TiCAP)
Answer: E
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NO.23 You are asked by your management team to do a presentation and explain why your IT department
should go with the SGeRAC solution instead of the standard single-instance Oracle implementation with
Serviceguard.
Which benefits should you present? (Select two.)
A. reduces the overall cost
B. increases the security level
C. provides easier cluster management
D. reduces recovery time of a large database
E. provides the ability to add more nodes to the cluster on the fly
F. increases processing power without the need to administer separate databases
Answer: DF
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NO.24 In the context of high availability, which phrase describes Mean Time To Repair (MTTR)?
A. mean interval of time to resume a service after a failure
B. mean time a service engineer needs to repair a failed server
C. mean interval of time when the system provides service without fault
D. mean time a service engineer needs to replace a server after a failure
E. mean time a service engineer needs to arrive at the site of a failed server
Answer: A
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NO.25 When implementing a legacy package utilizing application monitoring, which variable in the package
control script will point to the monitor script?
A. service_cmd
B. SERVICE_CMD
C. MONITOR_CMD
D. MONITOR_NAME
Answer: B
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NO.26 Which statements are true regarding Serviceguard Manager version 5.01? (Select three.)
A. Serviceguard Manager is a graphical user interface for the Serviceguard product.
B. With Serviceguard Manager you can monitor, administer, and configure clusters managed by
Serviceguard.
C. With Serviceguard Manager you can run a multinode cluster which consists of both HP-UX and Linux
nodes.
D. With Serviceguard Manager you can change package-switching and node-switching flags for failover
packages.
E. With Serviceguard Manager you can install Serviceguard software product on hosts managed by HP
Systems Insight Manager (HP SIM).
Answer: ABD
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NO.27 Click the Exhibit button.
Based on the cmviewcl output, which statement is correct?
A. A failure of ora_lsnr will cause alien_pkg to failover.
B. A single failure of oracle9i will cause alien_pkg to failover.
C. The subnet 192.168.1.0 going down will cause alien_pkg to failover.
D. A failure of either ora_lsnr or oracle9i will cause alien_pkg to failover.
Answer: C
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NO.28 Which products offer a solution to protect from failure of a complete data center? (Select three.)
A. Metrocluster
B. Serviceguard
C. Continentalclusters
D. Extended Campus Cluster
E. Enterprise Cluster Master Toolkit
Answer: ACD
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NO.29 In which situations can a local high availability solution prevent unplanned downtime? (Select two.)
A. An operator accidentially reboots a cluster node.
B. The shared storage component looses A/C power and goes down.
C. A complete data center goes down because of an environmental disaster.
D. The network communication between the cluster nodes is permanently interrupted.
E. The clustered application database becomes corrupted by installation of an application patch.
Answer: AD
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NO.30 Which statement is correct concerning the difference between a local Serviceguard cluster and an
extended distance cluster (also known as a campus cluster)?
A. An extended distance cluster provides disaster tolerance across two data centers located on different
continents.
B. An extended distance cluster solution typically requires a physical data replication mechanism between
high end storage arrays.
C. An extended distance cluster solution typically uses host based disk mirroring between two computer
rooms in an IT environment.
D. An extended distance cluster is a separate product installation to implement High Availability between
two computer rooms in a IT environment.
Answer: C
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