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2021 Dec 1Z0-100 free exam questions

Q11. Which two actions should be completed when the firstboot utility runs under runlevel 5 in Oracle Linux? 

A. Agreeing to the license agreement 

B. Registering for software updated 

C. Creating a nonadministrative user 

D. setting the current date and time to be synchronized with an NTP server 

E. Configuring the dtrace facility 

Answer: A,C 

Q12. 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. 


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) 


Q13. Which two statements are true concerning the installation and configuration of the bootloader by the Anaconda installer, which is then used to boot Oracle Linux? 

A. The Linux Loader (LILO) bootloader may be chosen for installation. 

B. The bootloader must be password protected and Anaconda prompts for a password in all cases. 

C. The Grand Unified Bootloader (GRUB) is the only bootloader used by Oracle Linux. 

D. If previously installed operating systems are found on disk partitions that were not overwritten, then an attempt is made to configure the bootloader to be able to boot them. 

E. The bootloader is installed by default in the first partition of the disk. 

Answer: A,E 

Explanation: A (not C): Linux boot process from hard drive: 

1. PC initializion phase - BIOS, POST. 

2. PC starts boot loader - usually grub or lilo. 

3. The bootloader locates kernel image on the hard drive. 

4. The kernel decompresses and loads itself. Once finished it tries to mount the root filesystem. 5. When the root filesystem is mounted, /sbin/init is executed and continues booting the system using inittab and /etc/rc*.d scripts 

Q14. Which type of nameserver is provided by the default bind configuration files on Oracle Linux? 

A. A primary name server 

B. A secondary name server 

C. Recursive caching-only nameserver 

D. An authoritative name server 

E. Slave name server 


Q15. Examine these commands used to control UPSTART logging: 

[root@FAROUT init] # initctl log-priority info [root@FAROUT init] # initctl log-priority 


[root@FAROUT init]# 

Which three statements are true about the logging done through these commands? 

A. UPSTART logs State Changes to /vat/log/messages. 

B. UPSTART logs job goals to /var/log/massages. 

C. UPSTART logs only informational messages about warnings and errors to /var/log/messages. 

D. UPSTART logs only informational messages about warnings to /var/log/messages. 

E. UPSTART logs event emissions to /var/log/messages. 

Answer: A,C,E 

Down to date 1Z0-100 vce:

Q16. Examine the output of a bonded interface configuration from which one network cable has been unplugged: 

# cat /proc.net/bonding/bond0 Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009) Bonding Mode: fault-tolerance (active-backup) Primary Slave: None Currently Active Slave: eth2 MII Status: up MII poling interval (ms): 100 Up Delay (ms): 0 Down Delay (ms): 0 Slave Interface: eth1 MII status: down Link Failure Count: 1 Permanent HW addr: 00:0c:29:7b:3c:71 Slave Queue ID: 0 Slave Interface: eth2 MII Status: up Link Failure Count: 0 Permanent HW addr: 00:0c:29:7b:3s:7b 

Which statement is true when you plug in the eth1 network cable? 

A. The status of the slave interface eth1 changes to up and is promoted to the active slave and eth2 becomes the backup slave. 

B. The status of the slave interface eth1 changes to up and becomes a second active slave. 

C. The status of the slave interface eth1 changes to up but must be manually assigned the active or backup slave role. 

D. The status of the slave interface eth1 changes to up and becomes the backup slave. 


Q17. Identify three features/functions enabled by using asmlib? 

A. Application-to-disk data integrity checking 

B. Device naming persistence 

C. Replaces udev for all files used by any application 

D. Device ownership persistence 

E. Multipathing driver for luns used for asmdisks 

F. locking facility for using luns in an ASM cluster 

Answer: D,E,F 

Q18. A web server on HOST01 is listening on port 80. 

Examine the IPTABLES rule shown: [root@host01 ~] # iptables –L INPUT Chain INPUT (policy ACCEPT) targetportoptsourcedestination 

ACCEPTtcp- - anywhereanywheretcp dpt:http Another rule is then added: [root@host01 ~] # iptables –A INPUT –P tcp - - dport 80 –j REJECT What is the effect of this command on subsequent attempts to access the web server on 

HOST01 using port 80? 

A. New connection attempts timeout. 

B. New connection attempts are refused and the client informed of the refusal. 

C. New connection attempts always succeed. 

D. New connection attempts succeed until a reload of the firewall rules. 


Q19. Which three statements are true concerning the use of open SSH utilities? 

A. SCP always requires a passphrase to be used. 

B. SCP permits copies between two remote hosts. 

C. SFTP permits transfers between two remote hosts. 

D. SSH may be used to execute a single command on a remote host instead of executing the login shell on the remote host. 

E. SFTP may be used to execute a command on the remote server. 

Answer: B,D,E 

Q20. Which three statements are true configuration files and the behavior of module parameters specified in those files, in the /etc/modprobe.d directory? 

A. The files may contain options to be passed to a module only when it is a dependency of a module being inserted. 

B. The file may contain shell commands to be run instead of inserting a particular module in the kernel. 

C. The files may contain options to be passed to a module, only when it is inserted using a modprobe command. 

D. The files may contain alias names for modules. 

E. The file may contain instructions to ignore certain modules. 

F. The files may contain options to be passed to a module only when it is Inserted using an insmod command. 

Answer: A,C,D 

Explanation: modprobe.d - Configuration directory for modprobe Because the modprobe command can add or remove more than one module, due to modules having dependencies, we need a method of specifying what options are to be used with those modules (A). All files underneath the /etc/modprobe.d directory which end with the .conf extension specify those options as required. They can also be used to create convenient aliases (D): alternate names for a module, or they can override the normal modprobe behavior altogether for those with special requirements (such as inserting more than one module). 

C: options modulename option... This command allows you to add options to the module modulename (which might be an alias) every time it is inserted into the kernel: whether directly (using modprobemodulename or because the 

module being inserted depends on this module.