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Oracle 1Z0-821 Exam -

Free 1Z0-821 Sample Questions:

Q: 1
You are having an issue with the shutdown command. You wish to determine if the file is a script or an executable program. Which command would you use to determine this?
A. od shutdown
B. file shutdown
C. test shutdown
D. cksum shutdown
E. attrib shutdown
Answer: B
Explanation: The file command determines the file type. file tests each argument in an attempt to classify it. There are three sets of tests, performed in this order: filesystem tests, magic tests, and language tests. The first test that succeeds causes the file
type to be printed.
Reference: man file

Q: 2
What determines which bits in an IP address represent the subnet, and which represent the host?
A. Subnet
B. unicast
C. netmask
D. multicast
E. broadcast
Answer: C
Explanation: A subnetwork, or subnet, is a logically visible subdivision of an IP network. The practice of dividing a network into two or more networks is called subnetting.
The routing prefix of an address is written in a form identical to that of the address itself. This is called the network mask, or netmask, of the address. For example, a specification of the mostsignificant 18 bits of an IPv4 address, 11111111.11111111.11000000.00000000, is written

Q: 3
Which two accurately identify features of a Solaris 10 branded zone?
A. executes in a Solaris 10 global zone
B. is created by importing a Solaris 10 flash archive
C. enables Linux binary applications to run unmodified
D. provides a complete runtime environment for Solaris 9 applications
E. allows a Solaris 10 global zone to be migrated into a Solaris 10 non-global zone on a Solaris 11 system
Answer: A,B
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
Ä ufsdump level zero (full) backups
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.
Reference: Solaris10-Branded Zone Developer Guide

Q: 4
You are troubleshooting a newly installed desktop Oracle Solaris 11 system with a single network interface. From this system, you can connect to other systems within the company intranet, but cannot access any external services (such as websites and email), even when using IP addresses.
Examining the routing table confirms that the default route to is missing. DHCP is not used at this site. Which two commands will temporarily mid permanently configure the default route?
A. ipadm set-gateway
B. route add default
C. ipadm set-default
D. dladm route-add –d
E. echo >/etc/gateway
F. echo >/etc/defaultrouter
Answer: B,F
Explanation: B: Setting the default route on Solaris is easy. If you are trying to just set the route temporarily you can use the route command:
route add default <ipaddress>
route add default
Note: Route command manipulates the kernel routing tables. Routing is the process of forwarding a packet from one computer to another. It is based on the IP address in the IP packet header and netmask.
F: If you want the route to be persisted when you reboot the system, you will need to set the route in the /etc/defaultrouter file. /etc/defaultrouter
echo > /etc/defaultrouter

Q: 5
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 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.
B. 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.
C. Use the svccfg setnotify command to create a notification and send an email when a service enters the maintenance state.
D. 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.
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.
The following command creates a notification that sends email when transactions go into the maintenance state # /usr/sbin/svccfg setnotify -g maintenance
Reference: Oracle Solaris Administration: Commons Tasks
How to Set Up Email Notification of SMF Transition Events

Q: 6
User jack on host solaris attempts to use ssh to log in to host oracle and receives this message:
jack@solaris:~$ ssh oracle
ssh: connect to host oracle port 22: connection refused
What is the problem?
A. Host oracle does not have a valid host public key.
B. Host oracle does not have a valid host private key.
C. Host solaris does not have a valid host public key.
D. Host does not have a valid host private key.
E. Host solaris is not configured for host-based authentication.
F. Host oracle is not configured for host-based authentication.
G. Host oracle is not running the ssh service.
H. Host solaris is not running the ssh service.
Answer: G
Explanation: The host he is trying to connect to (oracle) is not running the required service (ssh).

Q: 7
When speaking in 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. cat /etc/release
C. cat /etc/update
D. prtconf | grep –i update
E. pkg info entire
Answer: B
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.
# 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

Q: 8
You need to configure an ISCSI target device on your x86 based Oracle Solaris II system. While configuring the iSCSI device, the following error is displayed:
bash: stmfadm: command not found
Which option describes the solution to the problem?
A. The COMSTAR feature is not supported on the x86 platform. The feature is supported only on the SPARC platform.
B. Use the iscsitadm command on the x86 platform when configuring an iSCSI target.
C. Install the storage-server group package on this system.
D. Start the iSCSI target daemon on this system.
Answer: C
Explanation: STMF – Manages transactions, such as context and resources for Small Computer System Interface (SCSI) command execution, and tracking logical unit and port providers. STMF also handles logical unit mappings, allocating memory, recovering failed operations, enumeration, and other necessary functions of an I/O stack.
STMF is controlled by stmfadm, and stmfadm is the majority of the commands you will be using to administer COMSTAR (COmmon Multiprotocl Scsi TARget).
Install the packages you need for COMSTAR with iSCSI and reboot:
# pfexec pkg install storage-server
# pfexec pkg install SUNWiscsit
# shutdown -y -i6 -g0
Note: You can set up and configure a COMSTAR Internet SCSI (iSCSI) target and make it available over the network. The iSCSI features can work over a normal Internet connection (such as Ethernet) using the standard iSCSI protocol. The iSCSI protocol also provides naming and discovery services, authentication services using CHAP and RADIUS, and centralized management through iSNS.
The COMSTAR target mode framework runs as the stmf service. By default, the service is disabled. You must enable the service to use COMSTAR functionality. You can identify the service with the svcs command. If you have not rebooted the server since installing the
group/feature/storage-server package, the service might not be enabled correctly.
Reference: Oracle Solaris Administration, Configuring iSCSI Devices With COMSTAR

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