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Oracle 11 Solaris System Administrator Person VUE Oracle Education
NEW QUESTION 102
The /etc/hosts file can be best described as______.
- A. a local database of information for the uname command
- B. a local database of host names for rlogin, rsh, and rep
- C. the configuration file for the Domain Name Service (DNS)
- D. the configuration file for the host name of the system
- E. a local database of host names and their associated IP addresses
Answer: E
Explanation:
Explanation/Reference:
Explanation:
As your machine gets started, it will need to know the mapping of some hostnames to IP addresses before DNS can be referenced. This mapping is kept in the /etc/hosts file. In the absence of a name server, any network program on your system consults this file to determine the IP address that corresponds to a host name.
NEW QUESTION 103
A datalink can best be described as______.
- A. a driver for a Network Interface Card
- B. a logical object used for IP Multipathing
- C. the software connecting the Internet Layer and the Physical Layer
- D. a device that provides Classless Inter-Domain Routing
Answer: B
Explanation:
Explanation/Reference:
Explanation:
The command dladm is used to configure data-link interfaces in Sun Solaris. A configured data-link is represented in the system as interface that can be used for TCP/IP. Each data-link relies on either a single network device or an link aggregation device to send & recieve packets.
Network interfaces provide the connection between the system and the network. These interfaces are configured over data links, which in turn correspond to instances of hardware devices in the system.
In the current model of the network stack, interfaces and links on the software layer build on the devices in the hardware layer. More specifically, a hardware device instance in the hardware layer has a corresponding link on the data-link layer and a configured interface on the interface layer. This one-to-one relationship among the network device, its data link, and the IP interface is illustrated in the figure that follows.
Network Stack Showing Network Devices, Links, and Interfaces:
NEW QUESTION 104
Your mentor suggests using the dladm rename-link command to rename the network datalinks.
What are the two advantages of following this advice?
- A. It can clarify which network interface has what purpose.
- B. It can prevent accidental deletion of the network interface configuration with the ipadm delete-addr command.
- C. It can simplify IP filter rule changes if the network interface is replaced with a different type.
- D. It can simplify specifying the network interface with the dladm modify-bridge command.
- E. It can prevent accidental deletion of the network interface with the dladm delete-phys command.
- F. It can simplify specifying the network interface with the dladm modify-aggr command.
Answer: A,C
Explanation:
Note: dladm rename-link [-R root-dir] link new-link
Rename link to new-link. This is used to give a link a meaningful name, or to associate existing link configuration such as link properties of a removed device with a new device.
NEW QUESTION 105
You have a ZFS file system named /dbase/oral and you want to guarantee that 10 GB of storage space is available to that dataset for all data,snapshots,and clones.
Which option would you choose?
- A. zfs set refquota=10g dbase/oral
- B. zfs set quota=10g dbase/oral
- C. zfs set reservation=10g dbase/oral
- D. zfs set refreservation=10g dbase/oral
Answer: C
Explanation:
A ZFS reservation is an allocation of disk space from the pool that is guaranteed to be available to a dataset. As such,you cannot reserve disk space for a dataset if that space is not currently available in the pool. The total amount of all outstanding,unconsumed reservations cannot exceed the amount of unused disk space in the pool. ZFS reservations can be set and displayed by using the zfs set and zfs get commands. For example:
# zfs set reservation=5G tank/home/bill # zfs get reservation tank/home/bill NAME PROPERTY VALUE SOURCE tank/home/bill reservation 5G local
NEW QUESTION 106
You have a process called bigscript, and you need to know the PID number for this process. Which command will provide that information?
- A. prstat bigscript
- B. pkill bigscript
- C. ps bigscript
- D. pgrep bigscript
Answer: D
Explanation:
Pgrep takes a process name and return a PID.
Note: pgrep looks through the currently running processes and lists the process IDs which
matches the selection criteria to stdout. All the criteria have to match. For example,
pgrep -u root sshd
will only list the processes called sshd AND owned by root.
Incorrec answers:
ps bigscript: You can't pass a name to ps, it interprets it as arguments.
NEW QUESTION 107
Which four can the SMF notification framework be configured to monitor and report?
- A. service dependencies that have stopped or faulted
- B. legacy services that have not started
- C. processes that have been killed
- D. services that have been disabled
- E. service configuration modifications
- F. service fault management events
- G. all service transition states
Answer: C,D,F,G
Explanation:
Explanation/Reference:
Explanation:
Note 1: State Transition Sets are defined as:
to<state>
Set of all transitions that have <state> as the final state of the transition.
form-<state>
Set of all transitions that have <state> as the initial state of the transition.
<state>
Set of all transitions that have <state> as the initial state of the transitional.
Set of all transitions. (A)
Valid values of state are maintenance, offline (G), disabled (E), online and degraded. An example of a transitions set definition: maintenance, from-online, to-degraded.
F: In this context, events is a comma separated list of SMF state transition sets or a comma separated list of FMA (Fault Management Architecture) event classes. events cannot have a mix of SMF state transition sets and FMA event classes. For convenience, the tags problem- {diagnosed, updated, repaired, resolved} describe the lifecycle of a problem diagnosed by the FMA subsystem - from initial diagnosis to interim updates and finally problem closure.
Note 2:
SMF allows notification by using SNMP or SMTP of state transitions. It publishes Information Events for state transitions which are consumed by notification daemons like snmp-notify(1M) and smtp-notify(1M).
SMF state transitions of disabled services do not generate notifications unless the final state for the transition is disabled and there exist notification parameters for that transition. Notification is not be generated for transitions that have the same initial and final state.
NEW QUESTION 108
What is the output of the following command, if executed using the default shell for the root account of a standard Live CD Install of Oracle Solaris 11?
echo '$SHELL'
- A. the PID for the current shell
- B. $SHELL
- C. /usr/bin/bash
- D. /usr/bin/ksh
Answer: B
Explanation:
Single quotes are most strict. They prevent even variable expansion. Double quotes prevent wildcard expansion but allow variable expansion. For example: #!/bin/sh echo $SHELL echo "$SHELL" echo '$SHELL' This will print: /usr/bin/bash /usr/bin/bash $SHELL
NEW QUESTION 109
You have been asked to do an orderly shutdown on a process with a PID of 1234, with the kill command.
Which command is best?
- A. kill -1 1234
- B. kill -15 1234
- C. kill -2 1234
- D. kill -9 1234
Answer: B
Explanation:
On POSIX-compliant platforms, SIGTERM is the signal sent to a process to request its termination. The symbolic constant for SIGTERM is defined in the header file signal.h.
Symbolic signal names are used because signal numbers can vary across platforms, however on the vast majority of systems, SIGTERM is signal #15.
SIGTERM is the default signal sent to a process by the kill or killall commands. It causes the termination of a process, but unlike the SIGKILL signal, it can be caught and interpreted (or ignored) by the process. Therefore, SIGTERM is akin to asking a process to terminate nicely, allowing cleanup and closure of files. For this reason, on many Unix systems during shutdown, init issues SIGTERM to all processes that are not essential to powering off, waits a few seconds, and then issues SIGKILL to forcibly terminate any such processes that remain.
NEW QUESTION 110
Which two options accurately describe the network characteristics of a zone?
- A. Shared IP is the default type of network configuration.
- B. IPMP cannot be managed within the non-global zone.
- C. Commands such as snoop and dladm cannot be used on datalinks that are in use by a running zone.
- D. DHCP address assignment cannot be configured in a shared IP zone.
- E. By default,all IP addresses,netmasks,and routes are set by the global zone and cannot be altered in a non global zone.
- F. Exclusive IP is the default type of network configuration.
Answer: A,D
Explanation:
A: Non-global zones can not utilize DHCP (neither client nor server).
B (not C): By default,non-global zones will be configured with a shared IP functionality.
What this means is that IP layer configuration and state is shared between the zone you're
creating and the global zone. This usually implies both zones being on the same IP subnet
for each given NIC.
Note: A zone is a virtual operating system abstraction that provides a protected environment in which applications run. The applications are protected from each other to provide software fault isolation. To ease the labor of managing multiple applications and their environments,they co-exist within one operating system instance,and are usually managed as one entity.
The original operating environment,before any zones are created,is also called the "global zone" to distinguish it from non-global zones,The global zone is the operating system instance.
Incorrect answer:
E: Exclusive-IP zones can use IPMP. IPMP is configured the same way in an exclusive-IP
zone as it is on a system not using zones.
For shared-IP zones,IPMP can be configured in the global zone.
F: Full IP-level functionality is available in an exclusive-IP zone.
An exclusive-IP zone has its own IP-related state.
An exclusive-IP zone is assigned its own set of data-links using the zonecfg command. The
zone is given a data-link name such as xge0,e1000g1,or bge32001,using the physical
property of the net resource. The address property of the net resource is not set.
Note that the assigned data-link enables the snoop command to be used.
The dladm command can be used with the show-linkprop subcommand to show the assignment of data-links to running exclusive-IP zones.
NEW QUESTION 111
The crash dump notification on your server is:
Documentation states that there should be two core files for each crash dump in the /var/crash directory named vmdump.0
Which command should you choose to display theses two files?
- A. gunzip vmdump.0
- B. dumpadm -z off
- C. savecore -f vmdump.0
- D. dumpadm uncompressed
Answer: C
Explanation:
Decompress using savecore -f vmdump.0
savecore - save a crash dump of the operating system
-f dumpfile Attempt to save a crash dump from the speci-fied file instead of from the system's current dump device. This option may be use-ful if the information stored on the dump device has been copied to an on-disk file by means of the dd(1M) command.
NEW QUESTION 112
The default publisher on your system is:
You want to update the Oracle Solaris 11 environment on your system,but you are not able to connect this system to the Internet to access the default Oracle repository. A repository has been created on your local network and is named http://server1.example.com.
Which command would you choose to connect your system to the local repository?
- A. pkg set-publisher to set the stickiness on the http://server1.example.com publisher and unset stickiness for http://pkg.oracle.com/solaris/release
- B. pkg add-publisher to add the new publisher
- C. pkg publisher to specify the new publisher
- D. pkg set-publisher to set the origin for the publisher
Answer: D
Explanation:
Solaris 11 Express makes it pretty easy to set up a local copy of the repository.
A common reason folks need access to a local repository is because their system is not
connected to the Internet.
Tthe pkg set-publisher command can be used to for example add a publisher or to enable
or disable a publisher.
Note: Example Adding a Publisher
Use the -g option to specify the publisher origin URI.
# pkg set-publisher -g http://pkg.example.com/release example.com
Example Specifying the Preferred Publisher
Use the -P option to specify a publisher as the preferred publisher. The specified publisher
moves to the top of the search order. You can specify the -P option when you add a
publisher or you can modify an existing publisher.
# pkg set-publisher -P example.com
Example Enabling or Disabling a Publisher
Use the -d option to disable a publisher. The preferred publisher cannot be disabled. A
disabled publisher is not used in package operations such as list and install. Youcan modify
the properties of adisabled publishers.
Use the -e option to enable a publisher.
# pkg set-publisher -d example2.com
NEW QUESTION 113
You are planning group names for a new system. You decide to use a numbering convention that includes the year and month the project began, to form the group number and name for work associated with that project.
So, for example, a project targeted to begin in January, 2013 would have the number (name):
201301(Pr20l301)
What are the two problems with your plan?
- A. Group names may not contain a numeric character
- B. Group names may be no longer than 7 characters.
- C. Group numbers should not be larger than 60000.
- D. Group names should be all lowercase.
Answer: C,D
Explanation:
C: The Group ID (GID) field contains the group's numerical ID. GIDs can be assigned whole numbers between
100 and 60000.
D: Group names contain only lowercase characters and numbers.
NEW QUESTION 114
Your server has a ZFS storage pool that is configured as follows:
The server has two spare 146-GB disk drives: c3t5d0 c3t6d0
You need to add more space to the pool1 storage pool. Which command would add more mirrored storage to the pool1 storage pool?
- A. zpool add pool1 mirror c3t5d0 c3t6d0
- B. zpool add pool1 c3r3d0 c3r5d0; zpool add pool1 c3r4d0 c3r6d0
- C. zpool attach pool1 mirror c3t5d0 c3t6d0
- D. zpool attach pool1 c3r3d0 c3r5d0; zpool attach pool1 c3r4d0 c3r6d0
Answer: A
NEW QUESTION 115
User jack logs in to host Solaris and executes the following command sequence:
Which three statements are correct?
- A. User jill can edit testfile because she has read and write permission at the group level.
- B. User jack can use cat to output the contents of testfile because he has read permission as the file owner.
- C. User jill can change the permissions of testfile because she has write permission for the file at the group level.
- D. User jack can change permissions for testfile because he is the owner of the file.
- E. User jack can edit testfile because he has read and write permissions at the group level.
- F. User jack can change permissions for testfile because he has execute permission for the file.
Answer: A,D,F
NEW QUESTION 116
You want the system to generate an email notification each time one of the services has changed its state. Which option would send an email message to the system administrator whenever a service changes to the maintenance state?
- A. Use the scvadm command to enable the notification service. Set the -g maintenance option on the netnotify service to send an email when a service enters the maintenance state.
- B. Use the setsc command in ALOM to enable the mail alerts to be sent to a specified email address whenever the fault management facility detects a service change to the maintenance state.
- C. Make an entry in the /etc/syslog.conf file to instruct syslogd to send an email alert when it receives a message from the SMF facility that a service has changed to the maintenance state.
- D. Use the svccfg setnotify command to create a notification and send an email when a service enters the maintenance state.
Answer: D
Explanation:
This procedure causes the system to generate an email notification each time one of the services or a selected service has a change in state. You can choose to use either SMTP or SNMP. Normally,you would only select SNMP if you already have SNMP configured for some other reason.
By default,SNMP traps are sent on maintenance transitions. If you use SNMP for monitoring,you can configure additional traps for other state transitions.
1.Become an administrator or assume a role that includes the Service Management rights profile.
2.Set notification parameters.
Example: The following command creates a notification that sends email when transactions go into the maintenance state
# /usr/sbin/svccfg setnotify -g maintenance mailto:[email protected]
NEW QUESTION 117
Which three of the components could be used in a ZFS storage pool, but are not recommended configurations?
- A. A file on a UFS file system
- B. An EFI labeled disk
- C. A Veritas Volume Manager (VxVM) volume
- D. A Solaris Volume Manager (SVM) volume
- E. A LUN In a hardware RAID array
- F. A disk slice from an SMI labeled disk
Answer: A,C,D
Explanation:
A: ZFS also allows you to use UFS files as virtual devices in your storage pool. This feature is aimed primarily at testing and enabling simple experimentation, not for production use.
The reason is that any use of files relies on the underlying file system for consistency. If you create a ZFS pool backed by files on a UFS file system, then you are implicitly relying on UFS to guarantee correctness and synchronous semantics.
However, files can be quite useful when you are first trying out ZFS or experimenting with more complicated layouts when not enough physical devices are present. All files must be specified as complete paths and must be at least 64 Mbytes in size.
B, E: You can construct logical devices for ZFS using volumes presented by software- based volume managers, such as Solaris Volume Manager (SVM) or Veritas Volume Manager (VxVM). However, these configurations are not recommended. While ZFS functions properly on such devices, less-than-optimal performance might be the result.
NEW QUESTION 118
The following information is displayed for the svc:/network/ssh service:
Which describes the minimum set of commands to be executed to bring the svc:
/network/ssh: default service back online?
- A. Option E
- B. Option G
- C. Option C
- D. Option D
- E. Option F
- F. Option B
- G. Option A
Answer: C
NEW QUESTION 119
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