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Exam Code: 090-091
Exam Name: SCO (UNIXWARE 7 NONSTOP CLUSTERS CERTIFICATION EXAM V1.0)
One year free update, No help, Full refund!
Total Q&A: 66 Questions and Answers
Last Update: 2013-12-23

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NO.1 The Split-Brain Avoidance (SBA) cable is:
A. A standard RS-232 null-modem cable only requiring signals Transmit, Receive, and signal-
Ground
B. A standard RS-232 null-modem cable requiring all 25-pins to be connected
C. A standard RS-232 null-modem cable requiring the minimum 9 pins found in a DB-9 connector
D. A special cable that can only be purchased from a UnixWare 7 NonStop Clusters OEM
Answer: A

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6. The name for the file that contains the list of load leveling parameters is:
A. /etc/cluster/load_level_parameters
B. /etc/load_level/parameters
C. /etc/cluster/load_level/parameters
D. /etc/cluster/load_level/parms
Answer: C

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7. You should choose CNM as your protected storage method when:
A. You want the fastest possible disk I/O performance
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

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8. Which statement best describes the condition known as split brain and the measures required
to
prevent it from occurring?
A. Split brain occurs when two nodes perform the same task in parallel and come up with a
different result. The way to avoid split brain condition is to add a third node to the cluster,
performing the same task, serving as a tie-breaker. That is, whichever solution gets two votes,
wins.
B. Split brain occurs when two nodes each try to serve the same CVIP from their own LAN cards.
The way to prevent a split brain condition is to place a split brain avoidance node on the LAN
which will tell a node when it should serve the CVIP .
C. Split brain occurs when two nodes each think they should be the root node at the same time. In
the case of CNM, this causes filesystem corruption. In the case of external storage, this can cause
ping-pong panics. The way to prevent a split brain condition is to install a serial cable between the
two potential root nodes and configure split brain avoidance during the UnixWare 7 NonStop
Clusters installation procedure. Alternately, you can use a SAN configuration that can detect the
different between a node with a bad SAN connection and a node that is not functioning at all.
D. Split brain is when two processes are migrated by the load-balancing daemon and the
processes start to ping-pong between nodes because of incorrectly configured load-balancing
metrics. The way to prevent a split brain condition is to configure load balancing metrics properly.
Answer: C

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9. Which statement best describes what SSI means to an administrator of UnixWare 7 NonStop
Clusters?
A. Each node in the cluster is administered separately
B. The entire cluster is administered as a single computing resource, except where an operation
must be node-specific, such as shutting down a single node
C. The entire cluster is administered as a single computing resource, without exception
D. SSI is not implemented by UnixWare 7 NonStop Clusters
Answer: B

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10. 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 it should fail, support engineers will be notified
immediately that it needs 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

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NO.2 Which statement best defines a fault zone?
. An area where single points of failure cannot be avoided. Thus, if a failure occurs in a fault
zone, the cluster becomes unavailable.
B. A place in a program that was not explicitly recompiled for the UnixWare 7 NonStop Clusters
(NSC) environment, where the program terminates
due to incompatibility with NSC.
C. An area of hardware or software where a redundancy exists and a single failure can occur
without bringing down the entire cluster.
D. The area of cluster operating systems most likely to crash the cluster.
Answer: C

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NO.3 The PID of a process started using the onnode command:
A. Reflects the cluster-node number on which the onnode command is run
B. Reflects the cluster-node number of the node on which onnode starts the new command
C. Will always be between 2 and 65535
D. Will have no special value or meaning
Answer: A

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NO.4 If a U appears in the 2 nd (run state) field of the /etc/inittab file, it means that:
A. This entry is run when the cluster is being brought up to the specified run state
B. This entry is run on a node when that node joins the cluster at the specified run state
C. This entry is run by the root node when it comes up to the specified run state
D. The entry is not run until the U, or load-factor, on the node is less than the value specified in the
last field.
Answer: B

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NO.5 The startup, shutdown, restart, and other scripts used by the failover daemon must be:
A. Kept in the /etc/keepalive.d directory, with user and group ownership of adm and permissions of
755
B. Kept in the /etc/spawndaemon.d directory, with user and group ownership of adm and
permissions of 755
C. Kept in the /etc/spawndaemon.d directory, with user and group ownership of adm and
permissions of 644
D. Kept in the /etc/keepalive.d directory, with user and group ownership of adm and permissions of
644
Answer: A

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Exam Code: 090-161
Exam Name: SCO (SCO OPENSERVER(TM) RELS 5 ADMIN AE FR MASTER ACE V30A1 TEST)
One year free update, No help, Full refund!
Total Q&A: 82 Questions and Answers
Last Update: 2013-11-29

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NO.1 How can you identify most daemon processes from the output of the following command: ps
-ef
A. There is a UID of system.
B. There is a ? in the tty column.
C. There is a d in the status column.
D. There is a PID greater than 500.
Answer: B

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NO.2 For Bourne and Korn shell users, one of the PERSONAL startup files is:
A. $HOME/.login
B. $HOME/.profile
C. /etc/login
D. /etc/profile
Answer: B

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NO.3 Your system does not boot near the end of the installation procedure, and you see the error
message:
PANIC: init
What is the most likely problem?
A. The installation program was unable to locate your primary floppy disk drive.
B. The VGA controller card is improperly configured.
C. The root filesystem did not properly mount.
D. The boot block was written on a bad track.
Answer: D

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NO.4 The login sequence is best described by which ordered sequence of processes?
A. login, init, getty, shell
B. login, getty, init, shell
C. init, getty, login, shell
D. init, login, getty, shell
Answer: C

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NO.5 What does the following command line do: tar tv
A. It shows the type of archive device.
B. It shows the time when an archive was created.
C. It updates the time stamp on the default tar(C) device.
D. It displays the table of contents of the default tar(C) device.
Answer: D

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NO.6 Which command can broadcast a warning to users that the system is going down in 15
minutes?
A. sync(ADM)
B. init 1
C. haltsys(ADM)
D. shutdown(ADM)
Answer: D

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NO.7 Which crontab entry will mail /usr/adm/messages to root once every weekday (excluding
Saturday
and Sunday) at 9 pm?
A. 0 9 * * 1-5 mail root < /usr/adm/messages
B. 0 9 * * * mail root < /usr/adm/messages
C. 0 21 * * 1-5 mail root < /usr/adm/messages
D. 0 21 * * * mail root < /usr/adm/messages
Answer: C

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NO.8 What information is NOT required for the cbackup(ADM) command to perform a backup?
A. Backup device
B. Backup level
C. Backup time
D. Filesystem
Answer: C

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NO.9 Which filesystems support versioning?
A. EAFS and HTFS
B. DTFS and HTFS
C. EAFS, DTFS, and HTFS
D. All supported filesystems
Answer: B

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NO.10 Which programs are executed by init(M) from the /etc/inittab file when the system enters
run-level
2?
A. /etc/ifor_pmd, /etc/asktimerc, and /etc/smmck
B. /etc/ifor_pmd, /etc/asktimerc, and /etc/authckrc
C. /etc/asktimerc and /etc/authckrc
D. /etc/ifor_pmd and /etc/asktimerc
Answer: C

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Exam Code: 090-056
Exam Name: SCO (SHELL PROGRAMMING FOR SYSTEM ADMINSTRATORS V30A1)
One year free update, No help, Full refund!
Total Q&A: 73 Questions and Answers
Last Update: 2013-10-15

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NO.1 Which statement accurately describes a shell script?
A. Shell scripts are compiled prior to execution.
B. Shell scripts are files that contain Bourne shell commands and uncompiled C language
functions.
C. Shell scripts are text files which contain binary code.
D. Shell scripts are interpreted at the time of execution.
Answer: D

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NO.2 What is the output of the following code:
set memo letter report note
shift 2
echo The parameter is $3
A. The parameter is letter
B. The parameter is report
C. The parameter is note
D. The parameter is
Answer: D

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NO.3 Given the following eight files in the current directory:
DOC doc doc1 doc11
doc12 doc13 doc2 doc3
What is the output of the command line:
echo doc[12]
A. doc1 doc11 doc12 doc13 doc2 doc3
B. doc1 doc11 doc12 doc2
C. doc1 doc2
D. doc[12]
Answer: C

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NO.4 What is displayed at the end of the following code fragment?
COUNT=1
while [ $COUNT -gt 0 -a $COUNT -lt 5 ]
do
COUNT=expr $COUNT + 1
who | lp
sleep 300
done
echo "COUNT=$COUNT"
A. COUNT=4
B. COUNT=5
C. COUNT=6
D. The echo statement is not executed because of an infinite while loop.
Answer: B

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NO.5 Which statement DOES NOT describe an attribute of a valid shell variable name (identifier)?
A. It may contain both upper and lower case letters.
B. It may contain a maximum of 8 characters.
C. It may contain numbers and underscore characters.
D. It may begin with a letter.
Answer: B

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NO.6 Which statement is LEAST likely to overwrite an existing file?
A. who > /tmp/tempfile
B. who > /tmp/tempfile$#
C. who > /tmp/tempfile$$
D. who > /tmp/tempfile$?
Answer: C

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NO.7 The difference between the execution of a while loop and an until loop is that:
A. an until loop is guaranteed to execute at least once, whereas a while loop is not
B. an until loop executes in a subshell, whereas a while loop does not
C. an until loop executes as long as its condition clause exits with a failure code, whereas a while
loop executes as long as its condition succeeds
D. the condition of an until loop is evaluated at the bottom of the loop, whereas it is evaluated at
the top for a while loop
Answer: C

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NO.8 What is the purpose of the following Bourne shell statement?
MAIL=/usr/peter/mymailbox
A. Incoming mail from other users will now be written to the file /usr/peter/mymailbox.
B. Outgoing mail will be recorded in the file /usr/peter/mymailbox.
C. The shell will check the file /usr/peter/mymailbox at specified intervals and alert the user when
new mail is written to the file.
D. Upon invocation, the mail command will set options that are specified in the file
/usr/peter/mymailbox.
Answer: C

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NO.9 Given that the current directory is NOT specified as part of your command search path, how can you execute mycommand if it exists in your current directory?
A. Enter ./mycommand
B. Enter .mycommand
C. Because the shell will look in the current directory for commands regardless of the PATH setting, enter mycommand
D. You cannot execute it until you reset the PATH variable to include the current directory.
Answer: A

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NO.10 Given the following script named sample:
# Sample script
echo $0
What is the output when it is invoked with the command line:
sample red green blue
A. red
B. red green blue
C. sample
D. sample red green blue
Answer: C

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