Oracle 1Z0-880 Online Practice Questions and Exam Preparation

Oracle 1Z0-880 Online Questions & Answers

• Question 31:

  A system administrator needs to enable access to a system with IP address 200.20.50.100. Other systems on the 200.20.50.0/24 network must remain inaccessible. Which command accomplishes this?

  A. route add host 200.20.50.100 myrouter
  B. netstat -a 200.20.50.100 200.20.50.0
  C. route add myrouter 200.20.50.100
  D. ifconfig -a qfe2 200.20.50.100 broadcast 200.20.50.255
  E. route add net 200.20.50.100 myrouter
  A. route add host 200.20.50.100 myrouter

• Question 32:

  A network administrator correctly configures a DHCP server that is serving JumpStart and non- JumpStart clients. One of the DHCP clients asks for an IP address. It does NOT ask for any other parameters such as subnet mask, router, and encapsulated vendor options. A variable must be modified in the /etc/default/ dhcpagent file on the client to configure the DHCP client's dhcpagent to request additional networking information from the DHCP server. Which variable must be modified?

  A. PARAM_REQUEST_LIST
  B. PARAM_REQUEST_ADDRESS
  C. PARAM_REQUEST_NETWORKING
  D. PARAM_REQUEST_ROWS
  E. PARAM_REQUEST
  A. PARAM_REQUEST_LIST

• Question 33:

  A DHCP client is configured with the RELEASE_ON_SIGTERM=yes parameter. Which two actions force a DHCP client to relinquish the IP address it obtained through DHCP on hme0? (Choose two.)

  A. use the stop option of the ifconfig hme0 dhcp command
  B. shut down the DHCP client
  C. use the pkill -9 dhcpagent command on the client
  D. use the dhcpinfo command with the r option
  E. use the dhcpagent command with the r option
  F. use the release option of the ifconfig hme0 dhcp command
  B. shut down the DHCP client
  F. use the release option of the ifconfig hme0 dhcp command

• Question 34:

  A Solaris system is configured with multiple interfaces connected to different networks. Which command enables this system to forward packets between these networks?

  A. ndd -set /dev/ip ip_ire_status
  B. ndd -set /dev/ip ip_forwarding 1
  C. ndd -set /dev/tcp ip_forwarding 1
  D. route -a enable
  E. route -u -e ipv4-forwarding
  B. ndd -set /dev/ip ip_forwarding 1

• Question 35:

  You configure an NTP server to use its local undisciplined clock and also an external server at address 192.20.20.1. Additionally, you create a fudge line: fudge 127.127.1.0 stratum 12

  Which is the purpose of the fudge line?

  A. to ensure that the synchronization is checked at 12:00 P.M. each day
  B. to ensure that the server's local clock is seen as a stratum 12 server
  C. to make the xntpd daemon check the clients clock every 12 minutes
  D. to ensure that only servers below stratum 12 are queried
  B. to ensure that the server's local clock is seen as a stratum 12 server

• Question 36:

  Given the following /etc/named.conf DNS server configuration file:

  zone "one.edu" in {

  type master;

  file "forward.zone";

  allow-update { 127.0.0.1; 192.168.1.2; };

  };

  zone "1.168.192.in-addr.arpa" in {

  type master;

  file "reverse.rzone";

  allow-update { 127.0.0.1; 192.168.1.2; };

  };

  In which way does the allow-update option change the behavior of the primary DNS server?

  A. The DNS server dynamically updates forward DNS servers.
  B. The DNS server can be dynamically updated with host information from a DHCP server.
  C. The DNS server dynamically updates secondary DNS servers.
  D. The DNS server dynamically updates reverse DNS servers.
  E. The DNS server can be dynamically updated by root DNS servers.
  B. The DNS server can be dynamically updated with host information from a DHCP server.

• Question 37:

  Which statement is true about TCP and/or UDP?

  A. TCP is a Transport layer protocol; UDP is an Internet layer protocol.
  B. TCP implements flow control at the Transport layer.
  C. TCP segments are converted to UDP datagrams at the Internet layer.
  D. UDP implements flow control at the Transport layer.
  B. TCP implements flow control at the Transport layer.

• Question 38:

  The TCP protocol has an algorithm that implements flow control on both the sender side and the receiver side. What is the function of the congestion window on the sending side?

  A. advertises the maximum amount of data that can be sent
  B. advertises the maximum amount of data that can be received
  C. advertises the amount of data loss
  D. adjusts the rate at which data can be sent
  E. adjusts the rate at which data can be received
  D. adjusts the rate at which data can be sent

• Question 39:

  Which two commands can be used to configure a new DHCP server? (Choose two.)

  A. dhcpsetup
  B. dhcpconfig
  C. dhcpmgr
  D. dhcpsvc
  E. dhcpagent
  B. dhcpconfig
  C. dhcpmgr

• Question 40:

  Which two are benefits of using DHCP? (Choose two.)

  A. DHCP on Solaris OS includes a VPN feature that allows for the dynamic setup of an IP-over-IP tunnel.
  B. DHCP is a replacement for JumpStart.
  C. DHCP reduces the cost of managing networks by automatic assignment of available IP addresses from a pool of addresses.
  D. DHCP allows setting up BOOTP and RARP relays.
  E. DHCP supports clients that boot over a network, effectively replacing the need for RARP and the bootparamsbootparams file.
  C. DHCP reduces the cost of managing networks by automatic assignment of available IP addresses from a pool of addresses.
  E. DHCP supports clients that boot over a network, effectively replacing the need for RARP and the bootparamsbootparams file.