Oracle 1Z0-821 Online Practice Questions and Exam Preparation

Oracle 1Z0-821 Online Questions & Answers

• Question 81:

  The following information is displayed for the svc:/network/ssh service:

  

  Which describes the minimum set of commands to be executed to bring the svc: /network/ssh: default service back online?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  E. Option E
  F. Option F
  G. Option G
  C. Option C

• Question 82:

  You want to display the IP address assignments of the network interfaces. Which command should you use?

  A. ipadm show-if
  B. ipadm show-addr
  C. ipadm show-prop
  D. ipadm show-addrprop
  B. ipadm show-addr

  ---

  'ipadm show-addr' displays all the configured addresses on the system.

  Example: # ipadm show-addr ADDROBJ TYPE STATE ADDR lo0/v4 static ok 127.0.0.1/8 lo0/v6 static ok ::1/128

• Question 83:

  View the Exhibit and review the disk configuration.

  

  The following command is executed on the disk:

  zpool create pool1 c3t3d0s0

  What is the result of executing this command?

  A. A zpool create error is generated.
  B. A 1-GB ZFS file system named /pool1 is created.
  C. A 15.97-GB storage pool named pool1 is created.
  D. The disk will contain an EFI disk label.
  B. A 1-GB ZFS file system named /pool1 is created.

• Question 84:

  You are installing Oracle Solaris 11 on a SPARC-based system by using the Test Installer. Which three statements are true?

  A. The ROOT user will always be configured as a role.
  B. The root filesystem will always be deployed on ZFS.
  C. The root filesystem will always be located on a local disk.
  D. The network can be configured using DHCP.
  E. The set of packages that will be installed are server based.
  F. You must always create one regular user when installing the system.
  B. The root filesystem will always be deployed on ZFS.
  D. The network can be configured using DHCP.
  E. The set of packages that will be installed are server based.

• Question 85:

  United States of America export laws include restrictions on cryptography.

  Identify the two methods with which these restrictions are accommodated in the Oracle Solaris 11 Cryptographic Framework.

  A. Corporations must utilize signed X.509 v3 certificates.
  B. A third-party provider object must be signed with a certificate issued by Oracle.
  C. Loadable kernel software modules must register using the Cryptographic Framework SPI.
  D. Third-party providers must utilize X.509 v3 certificates signed by trusted Root Certification Authorities.
  E. Systems destined for embargoed countries utilize loadable kernel software modules that restrict encryption to 64 bit keys.
  B. A third-party provider object must be signed with a certificate issued by Oracle.
  C. Loadable kernel software modules must register using the Cryptographic Framework SPI.

  ---

  B: Binary Signatures for Third-Party Software

  The elfsign command provides a means to sign providers to be used with the Oracle Solaris Cryptographic Framework. Typically, this command is run by the developer of a provider.

  The elfsign command has subcommands to request a certificate from Sun and to sign binaries. Another subcommand verifies the signature. Unsigned binaries cannot be used by the Oracle Solaris Cryptographic Framework. To sign one or

  more providers requires the certificate from Sun and the private key that was used to request the certificate.

  C: Export law in the United States requires that the use of open cryptographic interfaces be restricted. The Oracle Solaris Cryptographic Framework satisfies the current law by requiring that kernel cryptographic providers and PKCS #11

  cryptographic providers be signed.

• Question 86:

  Which two are implemented using the Internet Control Message Protocol (ICMP)?

  A. ping
  B. DHCP
  C. HTTP
  D. telnet
  E. syslog
  F. traceroute
  A. ping
  F. traceroute

  ---

  The Internet Control Message Protocol (ICMP) is one of the core protocols of the Internet Protocol Suite.

  ICMP differs from transport protocols such as TCP and UDP in that it is not typically used to exchange data between systems, nor is it regularly employed by end-user network applications (with the exception of some diagnostic tools like ping

  and traceroute).

• Question 87:

  Oracle Solaris 11 limits access to the system with usernames and passwords.

  The usernames are held in ___________, and the passwords are held in ___________.

  Select the correct pair.

  A. /etc/security/policy.conf /etc/passwd
  B. /etc/passwd /etc/shadow
  C. /etc/security /etc/passwd
  D. /etc/shadow /etc/passwd
  B. /etc/passwd /etc/shadow

  ---

  The /etc/passwd file contains basic user attributes. This is an ASCII file that contains an entry for each user. Each entry defines the basic attributes applied to a user.

  /etc/shadow file stores actual password in encrypted format for user's account with additional properties related to user password i.e. it stores secure user account information. All fields are separated by a colon (:) symbol. It contains one entry per line for each user listed in /etc/passwd file.

• Question 88:

  Your users are experiencing delay issues while using their main application that requires connections to remote hosts. You run the command uptime and get the flowing output:

  1:07am up 346 day(s), 12:03, 4 users, load average: 0.02, 0.02, 0.01

  Which command will be useful in your next step of troubleshooting?

  A. ipadm
  B. traceroute
  C. dladm
  D. snoop
  E. arp
  B. traceroute

  ---

  Test the remote connection with traceroute.

  The Internet is a large and complex aggregation of network hardware, connected together by gateways. Tracking the route one's packets follow (or finding the miscreant gateway that's discarding your packets) can be difficult. traceroute

  utilizes the IP protocol `time to live' field and attempts to elicit an ICMP TIME_EXCEEDED response from each gateway along the path to some host.

  This program attempts to trace the route an IP packet would follow to some internet host by launching UDP probe packets with a small ttl (time to live) then listening for an ICMP "time exceeded" reply from a gateway.

• Question 89:

  Which two statements are true concerning the network stack on Oracle Solaris 11?

  A. Hardware network interfaces and datalinks have a one-to-one relationship.
  B. IP addresses are assigned to datalinks.
  C. A single IP interface can have either an IPv4 address or an IPv6 address but not both.
  D. A single IP interface can have both an IPv4 address and an IPv6 address.
  E. A single datalink can have only one IP interface.
  A. Hardware network interfaces and datalinks have a one-to-one relationship.
  D. A single IP interface can have both an IPv4 address and an IPv6 address.

• Question 90:

  Review the boot environment information displayed on your system:

  

  Which two options accurately describe the newBE boot environment?

  A. It cannot be destroyed.
  B. It cannot be activated.
  C. It cannot be renamed.
  D. You can create a snapshot of it.
  E. It is activated but unbootable.
  F. It has been deleted and will be removed at the next reboot.
  B. It cannot be activated.
  C. It cannot be renamed.

  ---

  If the boot environment is unbootable, it is marked with an exclamation point (!) in the Active column in the beadm list output.

  The beadm command restricts actions on unbootable boot environments as follows:

  You cannot activate an unbootable boot environment. (B) You cannot destroy a boot environment that is both unbootable and marked as active on reboot.

  You cannot create a snapshot of an unbootable boot environment. You cannot use an unbootable boot environment or boot environment snapshot with the -e option of beadm create.

  You cannot rename an unbootable boot environment. (C)