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  1. Home
  2. Oracle Certification
  3. 1Z0-821 Exam
  4. Oracle.1Z0-821.v2024-03-21.q239 Dumps
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Question 111

Select two statements that correctly describe the capabilities of the Distribution Constructor.

Correct Answer: A,D
A: You can use the distribution constructor to create the following types of Oracle Solaris images:
*(A) x86 or SPARC ISO Image for Automated Installations
*Oracle Solaris x86 live CD image
*x86 or SPARC Oracle Solaris text installer image
*x86 Oracle Solaris Virtual Machine
Note: You can use the distribution constructor to build custom Oracle Solaris images. Then,you can use the images to install the Oracle Solaris software on individual systems or multiple systems. You can,also,use the distribution constructor to create Virtual Machine (VM) images that run the Oracle Solaris operating system.
D: Checkpointing Options You can use the options provided in the distro_const command to stop and restart the build process at various stages in the image-generation process,in order to check and debug the image that is being built. This process of stopping and restarting during the build process is called checkpointing.
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Question 112

A datalink can best be described as______.

Correct Answer: E
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: Reference: System Administration Guide: Network Interfaces and Network Virtualization
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Question 113

User jack logs in to host solaris and then attempts to log in to host oracle using ssh. He receives the following error message:
The authenticity of host oracle (192.168.1.22) can't be established. RSA key fingerprint is
3B:23:a5:6d:ad:a5:76:83:9c:c3:c4:55:a5:18:98:a6
Are you sure you want to continue connecting (yes/no)?
Which two are true?

Correct Answer: B,D
The fingerprints are used to guard against man in the middle attacks. Since ssh logins usually work over the internet (an insecure connection), someone could hijack your connection. When you try to log into yourmachine.com, he could get "in the middle" and return your challenge as if he was yourmachine.com. That way, he could get hold of your login password.
To make this attack harder, ssh stores the fingerprint of the server's public key on the first connection attempt. You will see a prompt like:
The authenticity of host 'eisen (137.43.366.64)' can't be established.
RSA key fingerprint is cf:55:30:31:7f:f0:c4:a0:9a:02:1d:1c:41:cf:63:cf.
Are you sure you want to continue connecting (yes/no)
When you enter yes, ssh will add the fingerprint to your known_hosts file. you will see Code:
Warning: Permanently added 'eisen, 137.43.366.64' (RSA) to the list of known hosts.
The next time you login, ssh will check whether the host key has changed. A changing host key usually indicates a man in the middle attack, and ssh refuses to connect.
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Question 114

Which two options are accurate regarding the non-global zone console?

Correct Answer: A,C
A: How to Log In to the Zone Console Use the zlogin command with the -C option and the name of the zone, for example, my-zone. global# zlogin -C my-zone
C: To disconnect from a non-global zone, use one of the following methods.
*To exit the zone non-virtual console: zonename# exit
*To disconnect from a zone virtual console, use the tilde (~) character and a period: zonename# ~.
Reference: System Administration Guide: Oracle Solaris Containers-Resource Management and Oracle Solaris Zones
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Question 115

Select the five tasks that need to be performed on the Automated Installer (AI) install server before setting up the client.

Correct Answer: B,D,F,G,I
B: Configure the AI install server to use a static IP address and default route.
D: The create-service command can set up DHCP on the AI install server. If you want to set up a separate DHCP server or configure an existing DHCP server for use with AI. The DHCP server must be able to provide DNS information to the systems to be installed.
E: An automated installation of a client over the network consists of the following high-level steps:
1. The client system boots over the network and gets its network configuration and the location of the install server from the DHCP server.
2. The install server provides a boot image to the client.
3. Characteristics of the client determine which installation instructions and which system configuration instructions are used to install the client.
4. The Oracle Solaris 11 OS is installed on the client, pulling packages from the package repository specified by the installation instructions in the AI install service.
G: Install the AI tool set.
Use the installadm create-service command to create an AI install service. Give the service a meaningful name, and specify the path where you want the service created. Specify the source of the network boot image (net image) package or ISO file.
installadm create-service [-n svcname]
[-s FMRI_or_ISO] [-d imagepath]
-d imagepath
The imagepath is the location of the new install service. The install-image/solaris-auto- install package is installed to this location, or the specified ISO file is expanded at this location.
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