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Download Oracle Solaris 11 System Administration Exam Dumps
NEW QUESTION 24
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. log any messages into the stack log
- B. help prevent core dumps on program errors
- C. help makebuffer-overflow attacks more difficult
- D. help programs to execute more quickly by keeping to their own memory space
Answer: C
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
Reference: How to Disable Programs From Using Executable Stacks
NEW QUESTION 25
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 reservation=10g dbase/oral
- B. zfs set refquota=10g dbase/oral
- C. zfs set refreservation=10g dbase/oral
- D. zfs set quota=10g dbase/oral
Answer: A
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 26
You want to deploy Oracle Solaris 11 with the Automated Installer (AI). You need to make sure that your server and network meet the requirements for using AI.
Identify two requirements for using AI.
- A. You should set up DHCP. The DHCP server and AI install server can be the same machine or two different machines.
- B. The minimum requirement to operate as an AI install server is 1 GB of memory.
- C. You can create only one manifest per install service. If you need more than one manifest, you should create multiple install services.
- D. If two client machines have different architectures and need to be installed with the same version of the Oracle Solaris 11 OS, then you should create two AI manifests and a single install service.
Answer: A,D
Explanation:
A: An automated installation of a client over the network consists of the following high-level steps:
Step 1. The client system boots over the network and gets its network configuration and the location of the install server from the DHCP server.
Step 2: The install server provides a boot image to the client.
Etc.
D: If two client machines need to be installed with the same version of the Oracle Solaris
11 OS but need to be installed differently in other ways, then create two AI manifests for the AI install service. The different AI manifests can specify different packages to install or a different slice as the install target, for example.
NEW QUESTION 27
......
