Oracle Solaris 11 System Administration
Question No: 131 – (Topic 2)
The COMSTAR framework provides support for the iSCSI protocol.
Select three options that correctly describe the COMSTAR framework.
iSCSI devices can be used as dump devices.
SCSI commands are carried over IP networks and enable you to mount disk devices from across the network onto your local system.
Large amounts of data can be transferred over an IP network with very little network degradation.
COMSTAR allows you to convert any Solaris11 host into a SCSI target device that can be accessed over a storage network.
One IP port can handle multiple ISCSI target devices.
Answer: B,D,E Explanation:
B: By carrying SCSI commands over IP networks,the iSCSI protocol enables you to access block devices from across the network as if they were connected to the local system.
COMSTAR provides an easier way to manage these iSCSI target devices.
D: Common Multiprotocol SCSI TARget,or COMSTAR,a software framework that enables you to convert any Oracle Solaris 11 host into a SCSI target device that can be accessed over a storage network by initiator hosts.
E: One IP port can handle multiple iSCSI target devices.
Question No: 132 – (Topic 2)
You are going to use the- Automated installer (AI) to install a non global zone named zone1. You have created a custom manifest for the non-global zone and named it zone1manifest
Which command will you use to add this custom manifest to the s11-sparc install service and associate this custom manifest with the non-global zone?
installadm create-profile -n s11-sparc -f /tmp/zone1manifest.xml – c
installadm create-manifest -n s11-sparc -f /tmp/zone1manifest.xml -m
installadm create-client -n s11-sparc -f /tmp/zone1manifest.xml -m zone1manifest -c zonename= “zone1”
installadm create-service – n s11-sparc -f /tmp/zone1manifest.xml -m zone1manifest – c zonename=”zone1″
Answer: B Explanation: installadm add-manifest
Associates manifests with a specific install service,thus making the manifests available on the network,independently from creating a service. When publishing a non-default manifest, it is required to associate criteria either via criteria entered on the command line (-c) or
via a criteria XML file (-C).
Question No: 133 – (Topic 2)
You are setting up an automated installer (AI) install server and issue the following command:
installadm create-service -n prod_ai -s /repo/prod_ai.iso \
-i 192.168.1.100 -c 5 -d /export/repo
Which four options describe the install server that you have configured?
The service name is prod_ai.
DHCP base IP address is 192.168.1.100
The initial IP address for the install clients will be 192.168.1.100. This IP address is temporary. After the client is booted,it will use IP addresses in the following range: 192.168.1.101-105.
Five IP addresses are allocated for DHCP clients,starting with 192.168.1.100.
The Install server will support up to five clients.
The AI net image ISO file is located in /repo/prod and the net image ISO will be unpacked in /export/repo.
The AI net image ISO file is located in /repo/repo and is named /repo/prod/_ai.iso.
Answer: A,B,D,F Explanation:
A: -n lt;svcnamegt;
Uses this install service name instead of default service name.
B: -i lt;dhcp_ip_startgt;
Sets up a new DHCP server. The IP addresses, starting from dhcp_address_start,are set up.
D: -c lt;count_of_ipaddrgt;
Sets up a total number of IP addresses in the DHCP table equal to the value of the count_of_ipaddr. The first IP address is the value of dhcp_ip_start that is provided by the
F: -s lt;srcimagegt;
Specifies location of AI ISO image to use for setting up the install service.
Required: Specifies location to set up net image.
Question No: 134 – (Topic 2)
You have been tasked with creating a dedicated virtual network between two local zones within a single system,in order to isolate the network traffic from other zones on that system.
To accomplish this,you will create .
an ether stub
a virtual bridge
a virtual network interface
nothing,because a virtual switch is automatically created when the virtual network interfaces are created
Answer: D Explanation:
First create a virtual switch,then create a virtual network interface.
Question No: 135 – (Topic 2)
How should you permanently restrict the non-global zone testzone so that it does not use more than 20 CPU shares while it is running?
While configuring the zone,add this entry:add rct1set name = capped.cpu-sharesadd value (priv = privileged,limit = 20,action = none)endexit
While configuring the zone,add this entry: add rct1set name= zone.cpu-sharesadd value (priv=privileged,limit=20,action=none)endexitfrom command line,enter: # dispadmin – d FSS
From the command line enter: #prct1 -n zone.cpu-shares – r – v 20 – i zone testzone
From the command line,enter:#prct1 – n zone.cpu-shares – v 80 – r – i zone global
Answer: C Explanation:
The prctl utility allows the examination and modification of the resource controls associated with an active process,task,or project on the system. It allows access to the basic and privileged limits and the current usage on the specified entity.
How to Change the zone.cpu-shares Value in a Zone Dynamically This procedure can be used in the global zone or in a non-global zone.
For more information about roles,see Configuring and Using RBAC (Task Map) in System Administration Guide: Security Services.
# prctl -n zone.cpu-shares -r -v value -i zone zonename
idtype is either the zonename or the zoneid. value is the new value.
Number of CPU shares granted to a project for use with the fair share scheduler
Question No: 136 – (Topic 2)
Which two options are valid methods of installing a solaris10 branded zone on a system running Oracle Solaris 11?
Use the V2V process to migrate an existing Solaris 8 or 9 non-global zone from a Solaris 10 system to a solaris10 branded zone.
Use the V2V process to migrate an existing Solaris 10 non-global whole root zone from a Solaris 10 system to a solaris10 branded whole root zone.
Install a solaris10 branded zone directly from the Oracle Solaris 10 media.
Migrate an existing 64-bit Solaris 10 system to a solaris10 branded non-global zone using the P2V process.
Use the V2V process to migrate an existing Solaris 10 non-global sparse root zone from a Solaris 10 system to a solaris10 branded sparse root zone.
Answer: B,C Explanation:
B: How to Migrate an Existing native Non-Global Zone
Use the V2V process to migrate an existing zone on your Solaris 10 system to a solaris10 brand zone on a system running the Oracle Solaris 11 release.
C: How to Install the solaris10 Branded Zone
A configured solaris10 branded zone is installed by using the zoneadm command with the install subcommand.
Question No: 137 – (Topic 2)
Your mentor suggests using the dladm rename-link command to rename the network datalinks.
What are the two advantages of following this advice?
It can clarify which network interface has what purpose.
It can simplify specifying the network interface with the dladm modify-aggr command.
It can simplify specifying the network interface with the dladm modify-bridge command.
It can simplify IP filter rule changes if the network interface is replaced with a different type.
It can prevent accidental deletion of the network interface with the dladm delete-phys command.
It can prevent accidental deletion of the network interface configuration with the ipadm delete-addr command.
Answer: A,E Explanation:
A: To rename the bge0 link to mgmt0,enter the following command:
# dladm rename-link bge0 mgmt0
E: Consider that the bge0 device,whose link was named mgmt0 as shown in the previous example,needs to be replaced with a ce0 device because of a hardware failure. The bge0 NIC is physically removed,and replaced with a new ce0 NIC. To associate the newly added ce0 device with the mgmt0 configuration previously associated with bge0,enter the following command:
# dladm rename-link ce0 mgmt0 Note: How to Rename a Datalink
Use this procedure if you want to change a datalink name to a customized name. For example,some of the datalinks in upgraded system might have retained legacy hardware- based names and you want to change these names to generic ones.
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.
Question No: 138 – (Topic 2)
You have been asked to troubleshoot the initial configuration of a virtual network connecting two local zones with the outside world.
View the exhibit.
dladm create-vnic -1 vswitch192.168.1 vnic1 fails with the error
dladm: invalid link name ‘vswitch192.168.1’ What is the reason for this error?
The name vswitch192.168.1 is not legal.
The zone must be specified withdladm create-vnic -z zone3 vnic1.
The virtual interface must be specified withdladm create-vnic -z zone3 vnic1.
The virtual interface must be created withipadm create-vnic -1 switch192.168.1.
The virtual switch must be created first withdladm create -etherstub vswitch192.168.1.
Answer: E Explanation:
There is no data-link named vswitch192.168. We need to create an etherstub first.
See Note and example below for details.
Note: Create a VNIC in the system#39;s global zone.
# dladm create-vnic -l data-link vnic-name
data-link is the name of the interface where the VNIC is to be configured.
link can be a physical link or an etherstub.
vnic-name is the name that you want to give the VNIC.
For example,to create a VNIC named vnic0 on interface e1000g0,you would type the following:
# dladm create-vnic -l e1000g0 vnic0
Example: Creating a Virtual Network Without a Physical NIC First,create an etherstub with name stub1:
# dladm create-etherstub stub1
Create two VNICs with names hello0 and test1 on the etherstub. This operation implicitly creates a virtual switch connecting hello0 and test1.
# dladm create-vnic -l stub1 hello0
# dladm create-vnic -l stub1 test1
Question No: 139 – (Topic 2)
You run the command dlstat show-link -r.
Select the two correct statements regarding the information displayed in the INTRS column.
No value is listed for virtual network interfaces.
A value of 0 is listed for virtual interfaces and ether stubs.
The number of Interrupts is listed,which indicates network efficiency.
A number equal to the number of transmitted Ethernet frames is listed for physical links.
The number of packets that were interrupted by a collision is listed,which may indicate hardware problems.
Answer: C,E Explanation:
In this output,the statistics for interrupt (INTRS) are significant. Low interrupt numbers indicate greater efficiency in performance. If the interrupt numbers are high,then you might need to add more resources to the specific link.
# dlstat -r -i 1
LINK IPKTS RBYTES INTRS POLLS CHlt;10 CH10-50 CHgt;50 e1000g0 101.91K 32.86M 87.56K 14.35K 3.70K 205 5
nxge1 9.61M 14.47G 5.79M 3.82M 379.98K 85.66K 1.64K vnic1 8 336 0 0 0 0 0
e1000g0 0 0 0 0 0 0 0
nxge1 82.13K 123.69M 50.00K 32.13K 3.17K 724 24
vnic1 0 0 0 0 0 0 0
Note: dlstat show-link [-r [-F] | -t] [-i interval] [-a] [-p] [ -o field[,…]] [-u R|K|M|G|T|P] [link] Display statistics for a link.
Display receive-side statistics only. Includes bytes and packets received,hardware and software drops,and so forth.
List of supported RX fields: link
iusedby ibytes ipkts intrs polls
hdrops: hardware drops
sdrops: software drops (owing to bandwidth enforcement) chlt;10: number of packet chains of length lt; 10
ch10-50: number of packet chains of length between 10 and 50 chgt;50: number of packet chains of length gt; 50
Question No: 140 – (Topic 2)
ServerA contains two ISO images of a package repository named so1.repo.iso-a and so1.repo.iso-b respectively. You need to create a single local package repository on server that clients can connect to. The package repository will be stored on the /export/IPS file system and named repo. The preferred publisher will be named solaris and the publisher URL will be http://serverA.example.com.
Which is the correct procedure to perform on ServerA to create the local Package repository?
cat so1.repo.iso-a sol.repo.iso-b gt; so1.full.isoMount the ISO image and use the rsync command to extract the contents of the ISO file to the /export/IPS file system.Set the pkg/inst_root property to /export/IPS/repo and the pkg/readonly property to true.Set the preferred publisher by using pkg set-publisher -Ghttp://pkg.oracle.com/solaris/release/ \-g http”//serverA.example.com/ solaris
cat so1.repo.iso-a so1.repo.iso-b gt; /export/IPS/repoSet the pkg/inst_root property to true and the pkg/readonly property to /export/IPSSet the preferred publisher by using pkg set-publisher -G http://serverA.example.com/ \-g http://pkg/oracle.com/solaris/rekease/solaris
cat so1.repo.iso-a so1.repo.iso-b gt; so1.full.isoMount the ISO image and use the rsync command to extract the contents of the ISO file to /export/IPS/repoSet the pkg/inst_root property to /export/IPS/repo and the pkg/readonly property to trueSet the preferred publisher by using pkg set-publisher solaris \-g http://pkg.oracle.com/
cat so1.repo,iso-a so1.repo.iso-b gt; /export/IPS/repo.isoMount the ISO image and copy the repo directory from the ISO image to /export/IPS/reposet the pkg/inst_root property and the pkg/readonly property to /export/IPS/reposet the preferred pkg/inst_root property by using pkg set-publisher – G http://serverA.example.com/ \- g http://pkg.oracle.com/solaris.com/release/- p solaris
Answer: D Explanation:
Concatenate the files into one file using the cat command.
Make the contents of the repository .iso file available using the mount command.
To increase the performance of repository accesses and to avoid the need to remount the .iso image each time the system restarts,copy the repository files from /mnt/repo/to a ZFS file system. You can do this copy with rsync or with tar.
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