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Oracle 1Z0-821 Exam Syllabus Topics:
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NEW QUESTION 81
You have completed configuring a zone named dbzone on your Solaris 11 server. The configuration is as following:
The global zone displays the following network information:
The zone has never been booted. Which three options correctly describe this zone?
- A. The zone uses a virtual network interface.
- B. It is a native zone.
- C. It is a whole root zone.
- D. The IP address of the zone is 10.0.2.18.
- E. The hostid is the same as the global zone.
- F. It is an immutable zone.
- G. It is a sparse root zone.
- H. The zone shares the network interface with the host.
Answer: E,F,H
Explanation:
C: Immutable Zones provide read-only file system profiles for solaris non-global zones.
Note that ip-type: exclusive:
Starting with OpenSolaris build 37 and Oracle Solaris 10 8/07,a default zone can be
configured as an "exclusive-IP zone" which gives it exclusive access to the NIC(s) that the
zone has been assigned. Applications in such a zone can communicate directly with the
NIC(s) available to the zone.
Note on zones:
After installing Oracle Solaris on a system,but before creating any zones,all processes run
in the global zone. After you create a zone,it has processes that are associated with that
zone and no other zone. Any process created by a process in a non-global zone is also
associated with that non-global zone.
Any zone which is not the global zone is called a non-global zone. Most people call non-
global zones simply "zones." Some people call them "local zones" but this is discouraged.
The default native zone file system model on Oracle Solaris 10 is called "sparse-root." This
model emphasizes efficiency and security at the cost of some configuration flexibility.
Sparse-root zones optimize physical memory and disk space usage by sharing some
directories,like /usr and /lib. Sparse-root zones have their own private file areas for
directories like /etc and /var. Whole-root zones increase configuration flexibility but increase
resource usage. They do not use shared file systems for /usr,/lib,and a few others.
There is no supported way to convert an existing sparse-root zone to a whole-root zone.
Creating a new zone is required.
NEW QUESTION 82
You want to delete the IPv4 address on the interface net3. Which command should you use?
- A. ipadm delete-addr net3/v4
- B. ipadm down-addr net3/v4
- C. ipadm deiete-ipv4 ner3/v4
- D. ipadm disable-if net3/v4
- E. ipadm delete-vni net3/v4
- F. ipadm delete-ip net3/v4
Answer: A
Explanation:
Explanation/Reference:
Explanation:
The ipadm delete-addr subcommand removes addresses from interfaces.
To remove an address from the IPMP group, type the following command:
# ipadm delete-addr addrobj
The addrobj uses the naming convention inder-interface/user-string.
NEW QUESTION 83
User1 is attempting to run the following command:
cp bigfile verybig
The system displays the following errer:
cp: cannot create verybig: Disc quota exceeded
Your initial troubleshooting shows that the df -h command indicates the account is at 100% capacity. What command would you use to determine how much disk space the user has available?
- A. zfs quota=1M /rpool/export/home/user1
- B. df -h | grep user1
- C. zfs get quota rpool/export/home/user1
- D. zfs userused@user1
Answer: C
Explanation:
ZFS quotas can be set and displayed by using the zfs set and zfs get commands. In the following example,a quota of 10 Gbytes is set on tank/home/bonwick.
# zfs set quota=10G tank/home/bonwick # zfs get quota tank/home/bonwick NAME PROPERTY VALUE SOURCE tank/home/bonwick quota 10.0G local
NEW QUESTION 84
The global zone has 8 CPUS. YOU suspect that one of your non global /ones, dbzone, is consuming all of the CPU resources.
Which command would you use to view the CPU utilization for all of the zones to confirm this?
- A. Run from the global zone: rctladm -1
- B. Run from the global zone: zonestar -r summary
- C. Run from each zone zlogin <zonename> mpstat
- D. Run from the global zone: prctl -i
- E. Run from the global zone: prstat -Z
Answer: E
Explanation:
If you're logged on to the system, you can run prstat -Z to generate a summary of cpu/memory utilization by zone.
NEW QUESTION 85
On server A, you enter the following command to add a static route to serverA route -p add -host
192.168.1.101 192.168.1.101 -static
What is the purpose of this command?
- A. to specify routing to an adjacent network when in.routed is not used
- B. to specify routing to an adjacent network when in.rdisc is not used
- C. to specify an IPMP target IP address to in.mpathd
- D. to ensure the IP address for serverB is not flushed from the ARP cache
- E. to optimize link aggregation using a direct connection between two systems
- F. to temporarily bypass IP Filter rules
Answer: C
Explanation:
Explanation/Reference:
Explanation:
Note: # route -p add -host destination-IP gateway-IP -static
where destination-IP and gateway-IP are IPv4 addresses of the host to be used as a target.
For example, you would type the following to specify the target system 192.168.10.137, which is on the same subnet as the interfaces in IPMP group itops0:
$ route -p add -host 192.168.10.137 192.168.10.137 -static
This new route will be automatically configured every time the system is restarted. If you want to define only a temporary route to a target system for probe-based failure detection, then do not use the -p option.
NEW QUESTION 86
Which two options are valid methods of installing a solaris10 branded zone on a system running Oracle Solaris 11?
- A. 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.
- B. 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.
- C. Migrate an existing 64-bit Solaris 10 system to a solaris10 branded non-global zone using the P2V process.
- D. Install a solaris10 branded zone directly from the Oracle Solaris 10 media.
- E. 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.
Answer: D,E
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.
NEW QUESTION 87
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-gmaintenance option onthenetnotifyservice to send an email when a service enters the maintenance state.
- B. Make an entry in the /etc/syslog.conf file to instruct syslogd to send an email alert whenitreceives a message from the SMF facility that a service has changed to the maintenancestate.
- C. Use the svccfgsetnotify command to create a notification and send an email when a serviceenters the maintenance state.
- D. Use thesetsc 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 maintenancestate.
Answer: C
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]
Reference: Oracle Solaris Administration: Commons Tasks
How to Set Up Email Notification of SMF Transition Events
NEW QUESTION 88
What is the result of executing the following command?
svcs -d svc:/network/ssh:default
- A. deletes the svc: /network/ssh:default service
- B. displays the services that are dependent on the svc: /network/ssh:default service
- C. disables the svc:/network/ssh:default service
- D. displays the services that svc: /network/ssh:default is dependent on
Answer: D
Explanation:
The svcs command displays information about service instances as recorded in the service configuration repository.
-d Lists the services or service instances upon which the given service instances depend.
NEW QUESTION 89
Which two accurately identify features of a Solaris 10 branded zone?
- A. provides a complete runtime environment for Solaris 9 applications
- B. executes in a Solaris 10 global zone
- C. is created by importing a Solaris 10 flash archive
- D. allows a Solaris 10 global zone to be migrated into a Solaris 10 non-global zone on a Solaris 11 system
- E. enables Linux binary applications to run unmodified
Answer: C,D
Explanation:
B: It can be created by importing a Solaris 10 flash archive.
You can use the Oracle Solaris Flash archiving tools to create an image of an installed system that can be migrated into a zone.
The system can be fully configured with all of the software that will be run in the zone before the image is created. This image is then used by the installer when the zone is installed.
Note: You can use alternate methods for creating the archive. The installer can accept the following archive formats:
* cpio archives
* gzip compressed cpio archives
* bzip2 compressed cpio archives
* pax archives created with the -x xustar (XUSTAR) format
A ufsdump level zero (full) backups
Note:
Branded zones that run an environment different that the OS release on the system
* The lx branded zone introduced in the Solaris 10 8/07 release provides a Linux environment for your applications and runs on x86 and x64 machines on the Oracle Solaris
10 OS.
* The solaris8 and solaris9 branded zones enable you to migrate an Oracle Solaris 8 or Oracle Solaris 9 system to an Oracle Solaris 8 or Oracle Solaris 9 Container on a host running the Oracle Solaris 10 8/07 Operating System or later Oracle Solaris 10 release.
* The Oracle Solaris 10 Container brand is available in OpenSolaris build 127. These branded zones host Oracle Solaris 10 user environments.
Note: One of the powerful features of Solaris 11 is the ability to run a Solaris 10 environment in a zone. Solaris 10 allows you to run Solaris 8 and 9 environments in zones, but only on SPARC.
NEW QUESTION 90
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?
- A. cat so1.repo.iso-a so1.repo.iso-b > /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
- B. cat so1.repo, iso-a so1.repo.iso-b > /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
- C. cat so1.repo.iso-a sol.repo.iso-b > 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
- D. cat so1.repo.iso-a so1.repo.iso-b > 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/
Answer: C
NEW QUESTION 91
Which three of the components could be used in a ZFS storage pool, but are not recommended configurations?
- A. A disk slice from an SMI labeled disk
- B. A file on a UFS file system
- C. A Veritas Volume Manager (VxVM) volume
- D. A Solaris Volume Manager (SVM) volume
- E. A LUN In a hardware RAID array
- F. An EFI labeled disk
Answer: B,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 92
When speaking to an Oracle Support Engineer, you are asked to verify the version of the Solaris 11 build currently running on your system.
Which command would display the Solaris 11 build version currently running on your system?
- A. pkg info all
- B. pkg info entire
- C. cat /etc/release
- D. cat /etc/update
- E. prtconf | grep -i update
Answer: C
Explanation:
Explanation/Reference:
Explanation:
Which Solaris release you are running on your system can be determined using the following command:
cat /etc/release
This will tell you which release you are running and when it was released.
The more recent your system, the more info is contained in this file.
Example:
# cat /etc/release
Oracle Solaris 10 8/11 s10s_u10wos_17b SPARC
Copyright (c) 1983, 2011, Oracle and/or its affiliates. All rights reserved.
Assembled 23 August 2011
NEW QUESTION 93
A user on the system has started a process, but it needs to be terminated.
The process ID was determined as follows:
pgrep userprogram
l5317
The user attempted to terminate the program as follows:
pkill 15317
This command runs without an error message, and the process continues to run.
What is the issue?
- A. You need to run the pkillcommand with the process name.
- B. You need to switch to super user to kill the process.
- C. You need to run the ps command to get more information.
- D. You need to run the prstatcommand to get more information.
Answer: B
Explanation:
You can use the pgrep and pkill commands to identify and stop command processes that you no longer want to run. These commands are useful when you mistakenly start a process that takes a long time to run.
To terminate a process:
Type pgrep to find out the PID(s) for the process(es).
Type pkill followed by the PID(s).
You can kill any process that you own. Superuser can kill any process in the system except for those processes with process IDs of 0, 1, 2, 3, and 4. Killing these processes most likely will crash the system.
Reference: Terminating Processes (pkill)
NEW QUESTION 94
In order to display the IP addresses of network interfaces,what command would you use?
- A. sves
- B. ipadm
- C. ipaddr
- D. dladm
- E. ipconfig
Answer: B
Explanation:
'ipadm show-addr' displays all the configured addresses on the system.
Example: # ipadm show-addr ADDROBJ TYPE STATE ADDR lo0/v4 static ok 127.0.0.1/8 lo0/v6 static ok ::1/128
NEW QUESTION 95
A user brian is configured to use the bash shell. His home directory is /export/home/brian, and contains a .profile and a .bashrc file.
In the -profile, there are these lines:
genius =ritchie
export genius
In the .bashrc us this line:
genius=kernighan
In /etc/profile are these lines:
genius=thompson
export genius
When brian logs in and asks for the value of genius, what will he find, and why?
- A. genius will be ritchie because .profile executes after .bashrc.
- B. genius will be kernighan, because .bashrc executes after .profile.
- C. genius will be ritchie because variable settings in .profile take precedence over variable settings in .bashrc.
- D. genius will be thompson because /etc/profile system settings always override local settings.
- E. genius will be ritchie, because that was the value exported in .profile.
Answer: C
NEW QUESTION 96
Examine the following command sequence:
Which three are true?
- A. User jill, a member of the group other, can make a copy of testfile in dira.
- B. User jill, a member of the group other, can edit the data content of testfile.
- C. User jill, a member of the group other, cannot delete testfile.
- D. User oracle, not a member of the group other, cannot execute the shell script scriptfile.
- E. User jill, a member of the group other, can do a long listing (1s -1) of user jack's home directory.
Answer: A,B,C
NEW QUESTION 97
The line
set noexec_user_stack= l
should be added to the /etc/system file to prevent an executable stack while executing user programs.
What is the purpose of this?
- A. help programs to execute more quickly by keeping to their own memory space
- B. log any messages into the stack log
- C. help prevent core dumps on program errors
- D. help make buffer-overflow attacks more difficult
Answer: D
Explanation:
Explanation/Reference:
Explanation:
How to Disable Programs From Using Executable Stacks
Purpose: Prevent executable stack from overflowing.
You must be in the root role.
Edit the /etc/system file, and add the following line:
set noexec_user_stack=1
Reboot the system.
# reboot
NEW QUESTION 98
To assist in examining and debugging running processes, Solaris 11 has a utility that returns pro arguments and the names and values of environment variables.
What is the name of this utility?
- A. pmap
- B. pgrep
- C. ppgsz
- D. pargs
Answer: D
Explanation:
The pargs utility examines a target process or process core file and prints arguments, environment variables and values, or the process auxiliary vector.
NEW QUESTION 99
A user jack, using a korn shell, requests a directory listing as follows:
jack@solaris:/export/home/jack $ 1s
file filea Filea fileb Fileb filec Filec
Which two statements are correct?
- A. The pattern [g-e] * will expand to file filea fileb filec.
- B. The pattern [gfe] * will expand to file filea fileb filec.
- C. The pattern [?i]*a will expand to fileaFilea.
- D. The pattern [fF] [a-zA-z]i*e will expand to file.
- E. The pattern [fF]*a? will expand to [fF] *a?.
Answer: B,C
Explanation:
A:starting withone singlecharacter,second character must be letter i,any characters,
ending with letter a.
C: starting with letter e, f, or g, followed by anything.
NEW QUESTION 100
Examine this command and its output:
$ zfs list -r -t all tank
Name USED AVAIL REFER MOUNTPOINT
tank 3.00G 1.84G 32K /tank
tank/database 3.00G 1.84G 2.00G /tank/database
tank/[email protected] 1.00G - 2.00G -
Which two conclusions can be drawn based on this output?
- A. The tank dataset consumes 3 GB of storage.
- B. The tank/[email protected] dataset consumes 1 GB of storage that is shared with its parent.
- C. The tank/[email protected] dataset consumes 2 GB of storage that is shared with its child.
- D. The tank/[email protected] dataset consumes 1 GB of storage that is not shared with its parent.
- E. The tank/[email protected] dataset consumes 2 GB of storage that is not shared with its child.
Answer: A,B
NEW QUESTION 101
Which two are implemented using the Internet Control Message Protocol (ICMP)?
- A. ping
- B. traceroute
- C. telnet
- D. DHCP
- E. HTTP
- F. syslog
Answer: A,B
Explanation:
The Internet Control Message Protocol (ICMP) is one of the core protocols of the Internet Protocol Suite. ICMP differs from transport protocols such as TCP and UDP in that it is not typically used to exchange data between systems, nor is it regularly employed by end-user network applications
(with the exception of some diagnostic tools like ping and traceroute).
NEW QUESTION 102
You are troubleshooting interface net3 and you enter the following sequence of commands:
Your next command should be:
- A. ipadm up-addr net3/v4
- B. ipadm enable-if -T net3
- C. ipadm create-addr -T static -a 192.168.1.25/24 net3
- D. ipadm create-ip -T static -a 192.168.1.25/24 -n net3
- E. <ipadm create-vnic -a 192.168.1.25/24 net3/v4
Answer: C
Explanation:
If you are assigning a static IP address, use the following syntax:
# ipadm create-addr -T static -a address addrobj
where addrobj uses the naming format interface/user-defined-string, such as e1000g0/v4globalz.
Note:
create-addr [-t] -T static [-d] -a {local | remote}=addr[/prefixlen], ... addrobj Creates a static IPv4 or IPv6 address on the interface specified in addrobj. If the interface on which the address is created is not plumbed, this subcommand will implicitly plumb the interface. The created static address will be identified by addrobj.
By default, a configured address will be marked up, so that it can be used as a source or destination of or for outbound and inbound packets.
NEW QUESTION 103
......
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