[Free] 2018(Mar) EnsurePass Passguide Oracle 1z0-821 Dumps with VCE and PDF 71-80

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Oracle Solaris 11 System Administration

Question No: 71 – (Topic 1)

To confirm the IP address and netmask have been correctly configured on the network interfaces which command should you use?

  1. ipdilm show-if

  2. ipadm show-nic

  3. ipadm show-addr

  4. ipadm show-ifconfig

  5. ipadm show-addripadm show-mask

Answer: C Explanation:

Show address information,either for the given addrobj or all the address objects configured on the specified interface,including the address objects that are only in the persistent configuration.

State can be: disabled,down,duplicate,inaccessible,ok,tentative Example:

# ipadm show-addr


lo0/v4 static ok lo0/v6 static ok ::1/128

Question No: 72 – (Topic 1)

The OpenBoot firmware controls the operation of the system before the operating system is loaded.

Which four tasks are directly controlled by the OpenBoot firmware?

  1. Provides a list of boot entries from which to choose

  2. Allows hardware to identify itself and load its own plug-in device driver

  3. Loads the boot loader from the configured boot device

  4. Performs basic hardware testing

  5. Installs the console

  6. Reads and executes the boot archive

  7. Extract and executes the kernel image

Answer: A,B,C,D Explanation:

OpenBoot firmware is executed immediately after you turn on your system. The primary tasks of OpenBoot firmware are to:

  • Test and initialize the system hardware (D)

  • Determine the hardware configuration (D)

  • *Boot the operating system from either a mass storage device or from a network

    *Provide interactive debugging facilities for testing hardware and software

    Some notable features of OpenBoot firmware.

    • Plug-in Device Drivers (B)

      Most common tasks that you perform using OpenBoot

    • Booting Your System

    The most important function of OpenBoot firmware is to boot the system.

    Note: If auto-boot? is true,the system will boot from either the default boot device or from the diagnostic boot device depending on whether OpenBoot is in diagnostic mode. (C)

    Question No: 73 – (Topic 1)

    You want to delete the IPv4 address on the interface net3. Which command should you use?

    1. ipadm delete-ip net3/v4

    2. ipadm down-addr net3/v4

    3. ipadm disable-if net3/v4

    4. ipadm delete-vni net3/v4

    5. ipadm delete-addr net3/v4

    6. ipadm deiete-ipv4 ner3/v4

    Answer: E Explanation:

    The ipadm delete-addr subcommand removes addresses from interfaces. To remove an address from the IPMP group,type the following command:

    # ipadm delete-addr addrobj

    The addrobj uses the naming convention inder-interface/user-string.

    Question No: 74 – (Topic 1)

    Which two SMF milestones can be specified at boot time?

    1. none

    2. network

    3. all

    4. config

    5. unconfig

    6. devices

    Answer: A,C Explanation:

    The milestones that can be specified at boot time are

    none single-user multi-user

    multi-user-server all

    Question No: 75 – (Topic 1)

    In a fresh installation of Oracle Solaris 11,default datalinks are named with a genetic naming convention,and they increment as you add interfaces. What is the default name?

    1. eth#

    2. net#

    3. el000g#

    4. lo#

    5. nic#

    Answer: B Explanation:

    When you install this Oracle Solaris release on a system for the first time,Oracle Solaris automatically provides generic link names for all the system#39;s physical network devices. This name assignment uses the net# naming convention,where the # is the instance number. This instance number increments for each device,for example,net0,net1,net2,and so on.


    Network configuration in Oracle Solaris 11 includes

    * Generic datalink name assignment – Generic names are automatically assigned to datalinks using the net0,net1,netN naming convention,depending on the total number of network devices that are on the system

    Question No: 76 – (Topic 1)

    A user brian is configured to use the bash shell. His home directory is

    /export/home/brian,and contains a .profile and a .bashrc file. In the -profile,there are these lines:

    genius =ritchie export genius

    In the .bashrc us this line: genius=kernighan

    In /etc/profile are these lines: genius=thompson

    export genius

    When brian logs in and asks for the value of genius,what will he find,and why?

    1. genius will be ritchie,because that was the value exported in .profile.

    2. genius will be kernighan,because .bashrc executes after .profile.

    3. genius will be ritchie because variable settings in .profile take precedence over variable settings in .bashrc.

    4. genius will be ritchie because .profile executes after .bashrc.

    5. genius will be thompson because /etc/profile system settings always override local settings.

    Answer: C

    Question No: 77 – (Topic 1)

    Which command would you use from the bash shell to determine the total amount of physical memory installed in your Solaris system (x86 and SPARC)?

    1. uname -a

    2. prtconf | grep -i memory

    3. sysdef | grep -i memory

    4. vmstat

    5. prtdiag | grep -i memory

    Answer: B Explanation:

    The prtconf command prints the system configuration informa- tion. The output includes the total amount of memory,and

    the configuration of system peripherals formatted as a dev- ice tree.

    If a device path is specified on the command line for those command options that can take a device path,prtconf will only display information for that device node.

    Question No: 78 – (Topic 1)

    You have installed software updates to a new boot environment (BE) and have activated that the booting to the new BE,you notice system errors. You want to boot to the last known good configuration.

    Which option would you use on a SPARC system to boot to the currentBE boot environment?

    1. boot -L currentBE

    2. boot -Z rpool/ROOT/currentBE

    3. boot -a Enter the currentBE dataset name when prompted.

    4. boot rpool/ROOT/currentBE

    5. boot -m currentBE

    6. beadm activate currentBE

      Answer: F Explanation:

      You can change an inactive boot environment into an active boot environment. Only one boot environment can be active at a time. The newly activated boot environment becomes the default environment upon reboot.

      How to Activate an Existing Boot Environment

      1. Use the following command to activate an existing,inactive boot environment: beadm activate beName

        beName is a variable for the name of the boot environment to be activated. Note the following specifications.

        beadm activate beName activates a boot environment by setting the bootable pool property,bootfs,to the value of the ROOT dataset of the boot environment that is being activated.

        beadm activate sets the newly activated boot environment as the default in the menu.lst file.

      2. Reboot.

        The newly activated boot environment is now the default on the x86 GRUB menu or SPARC boot menu.

        Question No: 79 – (Topic 1)

        A user jack,using a korn shell,requests a directory listing as follows:

        jack@solaris:/export/home/jack $ 1s File filea Filea fileb Fileb filec Filec

        Which two statements are correct?

        1. The pattern [?i]*a will expand to filea Filea.

        2. The pattern [fF]*a? will expand to [fF] *a?.

        3. The pattern [gfe] * will expand to file filea fileb filec.

        4. The pattern [g-e] * will expand to file filea fileb filec.

        5. The pattern [fF] [a-zA-z] i*e will expand to file.

    Answer: A,C Explanation:

    A: starting with one single character,second character must be letter i,any characters,ending with letter a.

    C: starting with letter e,f,or g,followed by anything.

    Question No: 80 – (Topic 1)

    Oracle Solaris 11 kernel encounters a fatal error,and it results in a system panic. What type of file does this generate?

    1. a.out

    2. objdump

    3. core dump

    4. tape dump

    5. crash dump

    Answer: C Explanation:

    A kernel panic is a type of error that occurs when the core (kernel) of an operating system receives an instruction in an unexpected format or when it fails to handle properly. A kernel panic can also follow when the operating system can’t recover from a different type of error. A kernel panic can be caused by damaged or incompatible software or,more rarely,damaged or incompatible hardware.

    When a server kernel panics it abruptly halts all normal system operations. Usually,a kernel process named panic() outputs an error message to the console and stores debugging information in nonvolitile memory to be written to a crash log file upon restarting the computer. Saving the memory contents of the core and associated debugging information is called a “core dump.”

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