CWNP certification

　
　
Exam : SCO Caldera 090-091
Title : UNIXWARE 7 NONSTOP CLUSTERS CERTIFICATION EXAM V1.0a0


1. You should choose CNM as your protected storage method when:
A.You want the fastest possible disk I/O performace
B.You want the lowest-possible window of vulnerability when a node fails
C.You are willing and able to accept the slower write performance and greater window of vulnerability to reduce the price of the cluster
D.You dont care about the price of the cluster
Answer: C

2. The key to reliability and availability in a cluster is:
A. Having lots of spare parts on hand so that if something fails,it can be quickly replaced,causing minimal down time.
B. Having a hardware design that avoids any single point of failure,and a fault-tolerant operating system that knows how to press redundant hardware into service automatically.
C. Staffing the computer system with knowledgeable technicians 24x7.
D. Using the ringht monolithic computer system.
Answer: B

3. In clustering,a protected resource is one that:
A. Has special circuits that keep if from being damaged during a voltage surge
B. Is monitored by special hardware such that if should fail,support engineers will be notifiled immediately that it need to be replaced
C. Is monitored by special software to insure that it is not over-used
D. Is redundant in a cluster to avoid a single point of failure(SPF)and is automatically pressed into service by the cluster in the event the primary component fails
Answer: D

4. Which statement best describes how SSI is implemented in filesystems on UnixWare 7 NonStop Clusters?
A. Through the cluster filesystem(CFS),which provides a global view of all filesystems in a single file tree and allows them to be protected for failover.
B. Through a modifile version of NFS sharing mounts in a special,transparent,inter-node manner.
C. Through a modifile version of RFS sharing mounts in a special,transparent,inter-node manner.
D. Not at all.
Answer: A

5. In UnixWare 7 NonStop Clusters,which resources do NOT need to be protected to prevent unavailability of the cluster in the event the resources fails?
A. Filesystems,except the boot(/stand)filesystem for each node
B. Shared memory
C. semaphores
D. Video monitors
Answer: D

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