Oracle 1z0-100 (Oracle Linux 5 and 6 System Administration)시험을 등록하였는데 시험준비를 어떻게 해애 될지 몰라 고민중이시라면 이 글을 보고 Pass4Test를 찾아주세요. Pass4Test의 Oracle 1z0-100 (Oracle Linux 5 and 6 System Administration)덤프샘플을 체험해보시면 시험에 대한 두려움이 사라질것입니다. Pass4Test의  Oracle 1z0-100 (Oracle Linux 5 and 6 System Administration)덤프는  Oracle 1z0-100 (Oracle Linux 5 and 6 System Administration)실제시험문제를 마스터한 기초에서 제작한 최신시험에 대비한 공부자료로서 시험패스율이 100%입니다. 하루 빨리 덤프를 마련하여 시험을 준비하시면 자격증 취득이 빨라집니다.

 

NO.1 Which statements is true concerning Oracle Linux configuration files for users and groups?

A. The /etc/passwd file contains hashed passwords for each user.

B. The /etc/shadow file contains hashed passwords for each user.

C. The GECOS field in /etc/passwd file may be empty.

D. The /etc/group file contains the group name and the hashed group password.

Answer: B

Explanation:

/etc/shadow file stores actual password in encrypted (one-way hashed) format for user's account

with additional properties related to user password i.e. it stores secure user account information

NO.2 Examine the command on its output:

[root@FAROUT ~] # modprobe -v nfs

Insmod /lib/modules/ 2.6.39-100.0.12.e16uek.x86_64 /kernel/fs/nfs_common/nfs_acl.ko insmod

/lob/modules/ 2.6.39

100.0.12.e16uek.x86_64 /kernel/net/sunrpc/auth_gss/auth_rpcgss.ko

Insmod /lib/modules/ 2.6.39-100.0.12.e16uek.x86_64 /kernel/fs/fscache/fscache/ko

Insmod /lib/modules/ 2.6.39-100.0.12.e16uek.x86_64 /kernel/fs/locked.ko

Insmod /lib/modules/ 2.6.39-100.0.12.e16uek.x86_64 /kernel/fs/nfs/nfs.ko

Which two statements are true about the modprobe command?

A. It will load the nfs module if all the modules upon which it depends have been loaded.

B. It displays the dependency resolution for the nfs module and loads all the modules upon which

nfs depends before loading the nfs module.

C. It verifies that the nfs module and all other modules that depend on the nfs module are installed.

D. It displays the dependency resolution that would occur if the nfs module were to be loaded using

modprobe nfs.

E. It only loads the nfs module if all the modules upon which it depends have not been loaded yet.

Answer: A

Reference: http://redhat.activeventure.com/ 8 /customizationguide/ch-kernel-modules.html (kernel

module utilities)

NO.3 Examine this extract from the /etc/ssh/sshd_config file:

passwordAuthentication no

What is the effect of this parameter settings on the use of openSSH commands on both the client

and server?

A. Passwords are not required and no ssh-keygen is required either. Only passphrase are required.

B. Client users whose keys are not in the authorized_keys file on the server are unable to use

passwords to authenticate themselves to the server.

C. The ssh daemon does not ask for a password before starting or stopping the sshd service.

D. Client users whose keys are not in the authorized_keys file on the client are unable to use

passwords to authenticate themselves to the server.

Answer: B

Explanation:

If you set PasswordAuthentication to no, you will no longer be able to use a login and password to

authenticate and must use a login and public key instead (if PubkeyAuthentication is set to yes).

NO.4 Examine these statements and their output taken right after successful install of Oracle Linux:

[root@FAROUT /] rpm -q firstboot

Firstboot -1.110.10-1.0.2.e16.x86_64

[root @FAROUT /] # chkconfig - - list firstboot

Firstboot 0:off 2:off 3:off 4:off 5:off 6;off

[root@FAROUT /] # /etc/sysconfig/firstboot

RUN_FIRSTBOOT=NO

What is the conclusion?

A. The option to run firstboot was deselected during Oracle Linux installation.

B. The system was installed with desktop graphical packages and rebooted and the firstboot utility

ran successful.

C. Firstboot never ran in any run level because the service is turned off for all run levels.

D. The system was installed without selecting desktop graphical packages, thereby disabling

firstboot from running.

Answer: A

Explanation:

Firstboot is set to off for all levels.

Example:

The rm command below remove or delate the firstboot file in order to make sure the firstboot

program running when we restart or reboot the Fedora machine.

[root@fedora ~]# rm /etc/sysconfig/firstboot

rm: remove regular file `/etc/sysconfig/firstboot'? y

[root@fedora ~]#

Then check and make sure that firstboot program or firstboot service is run when your Fedora

startup/boot up.

Check firstboot services

[root@fedora ~]# chkconfig --list firstboot

firstboot 0:off 1:off 2:off 3:off 4:off 5:off 6:off

[root@fedora ~]#

NO.5 Which two software packages are prerequisites for enabling the configuration and use of a

Network information Service (Nis) client?

A. nis-tools

B. slapi-nis

C. ypbind

D. nisserv

E. nisbind

F. yp-tools

Answer: C,E

Explanation:

C: ypbind finds the server for NIS domains and maintains the NIS binding information. The client

(normaly the NIS routines in the standard C library) could get the information over RPC from ypbind

or read the binding files.

E: Setting up a NIS master server:

Required packages: yp-tools ypbind ypserv portmap

NO.6 You want to display the value of a shell variable called service after assigning a value as

shown:

SERVICE =ACCT S

Which two settings will display the name of the variable and its value?

A. set | grep service

B. echo $SERVICE

C. env | grep SERVICE

D. env $SERVICE

E. set $SERVICE

Answer: B,C

Explanation:

C: env - set the environment for command invocation

If no utility operand is specified, the resulting environment shall be written to the standard output,

with one name= value pair per line.

NO.7 Which three settings can be controlled by using the chage breemar command as the root user,

to modify the parameters in the /etc/shadow file?

A. The expiration date of the breemar account

B. The number of days after the breemar account is locked, that it becomes expired

C. The maximum number of days that must elapse between password changes by the user breemar

before the password becomes invalid

D. The number of days after the breemar account is locked, that it becomes unlocked

E. The minimum number of days that must elapse between password changes by the user breemar

F. The maximum number of failed login attempts on the breemar account before the account is

locked

Answer: A,C,E

Explanation:

A: chage -E, --expiredate EXPIRE_DATE

Set the date or number of days since January 1, 1970 on which the

user's account will no longer be accessible.

CE: You need to use chage command to setup password aging.

The chage command changes the number of days between password changes

and the date of the last password change. This information is used by the system to determine

when a user must change his/her password.

NO.8 What is the main advantage of the Oracle Unbreakable Enterprise Kernel compared with the

Red Hat compatible kernel?

A. It is more secure and, therefore, more difficult to hack.

B. It has a lower Mean Time Between Failures.

C. It provides higher availability for applications by reducing Mean Time to Recovery.

D. It scales better for more CPUS, memory, and Infiniband network connections.

Answer: D

Explanation:

The Unbreakable Enterprise Kernel, for those who want to leverage the latest

features from

mainline Linux and boost performance and scalability.

The Red Hat Compatible Kernel, for those who prefer strict Red Hat kernel ABI (kABI)

compatibility.