多选题You are creating a destination NAT rule-set. Which two are valid for use with the from clause？（）Asecurity policyBinterfaceCrouting-instanceDIP address

第1题：

The EtherChannel between your LAN switch and the Internet router is not load-balancing efficiently. On the switch，there are several workstations with valid IP ranges. Which load-balance algorithms can you use in the switch in order to optimize this load balancing？ （）

• A、source IP address
• B、destination IP address
• C、per-packet load balance
• D、destination MAC address
• E、source MAC address

第2题：

You have a firewall filter containing two terms applied in an inbound direction on a customer interface.You would like this filter to protect your network from a spoofed denial of service attack. Which match criterion should be configured ito identify unwanted packets?（）

• A、from source-port
• B、from source-address
• C、from destination-address
• D、from destination-port

第3题：

Interface ge-0/0/2.0 of your device is attached to the Internet and is configured with an IP address andnetwork mask of 71.33.252.17/24. A webserver with IP address 10.20.20.1 isrunning an HTTP service on TCP port 8080. The webserver is attached to the ge-0/0/0.0 interface of yourdevice. You must use NAT to make the webserver reachable from the Internet using port translation.Which type of NAT must you configure？（）

• A、source NAT with address shifting
• B、pool-based source NAT
• C、static destination NAT
• D、pool-based destination NAT

第4题：

When multiple PPP over Ethernet subscribers connect using the same DSL modem, which two attributes does the ERX use to differentiate between subscribers? （）(Choose two.)

• A、PPP session ID
• B、subscriber name
• C、source MAC address
• D、destination MAC address

第5题：

Which type of source NAT is configured in the exhibit？（） [edit security nat destination] user@host# show pool A { address 10.1.10.5/32； } rule-set 1 { from zone untrust； rule 1A { match { destination-address 100.0.0.1/32； } then { destination-nat pool A； } } }

• A、static destination NAT
• B、static source NAT
• C、pool-based destination NAT without PAT
• D、pool-based destination NAT with PAT

第6题：

You are creating a destination NAT rule-set. Which two are valid for use with the from clause？（）

• A、security policy
• B、interface
• C、routing-instance
• D、IP address

第7题：

Your boss at Certkiller .com wants you to clarify Oracle 10g. Which two statements regarding the LOGGING clause of the CREATE TABLESPACE... statement are correcte？（）

• A、This clause is not valid for a temporary or undotablespace.
• B、If thetablespaceis in the NOLOGGING mode， no operation on thetablespacewill generate redo.
• C、Thetablespacewill be IntheNOLOGGING mode by default， if not specified while creating atablespace.
• D、Thetablespace-level logging attribute can be overridden by logging specification at the table， index， materialized view， materialized view log， and partition levels.

第8题：

Which two statements regarding the LOGGING clause of the CREATE TABLESPACE. .. statement are correct？（）

• A、This clause is not valid for a temporary or undo tablespace.
• B、If the tablespace is in the NOLOGGING mode， no operation on the tablespace will generate redo.
• C、The tablespace will be in the NOLOGGING mode by default， if not specified while creating a tablespace.
• D、The tablespace­level logging attribute can be overridden by logging specifications at the table， index， materialized view， materialized view log， and partition levels.

第9题：

第10题：

第11题：

第12题：

第13题：

In which of the following situations should correlation names be used?（）

• A、A table referenced in the FROM clause has no indexed column.
• B、The table referenced in the FROM clause has more than 200 columns.
• C、Two or more tables in the FROM clause have identical column names.
• D、The FROM clause contains two or more tables in the SELECT statement.

第14题：

Interface ge-0/0/2.0 of your device is attached to the Internet and is configured with an IP address and network mask of 71.33.252.17/24. A Web server with IP address 10.20.20.1 is running an HTTP service on TCP port 8080. The Web server is attached to the ge-0/0/0.0 interface of your device. You must use NAT to make the Web server reachable from the Internet using port translation. Which type of NAT must you configure?（）

• A、source NAT with address shifting
• B、pool-based source NAT
• C、static destination NAT
• D、pool-based destination NAT

第15题：

You want the size of the tablespace to increase when it is full. Which option would you use？（）

• A、use automatic extent allocation
• B、disable threshold for the tablespace
• C、use freelists to manage the free space
• D、use automatic segment space management
• E、create the tablespace as a bigfile tablespace
• F、use the RESIZE clause while creating the tablespace
• G、enable AUTOEXTEND for at least one of the data files in the tablespace

第16题：

Which two statements are true about pool-based destination NAT？（）

• A、It also supports PAT.
• B、PAT is not supported.
• C、It allows the use of an address pool.
• D、It requires you to configure an address in the junos-global zone.

第17题：

A network administrator receives complaints from the engineering group that an application on one server is not working properly. After further investigation, the administrator determines that source NAT translation is using a different source address after a random number of flows. Which two actions can the administrator take to force the server to use one address?（） (Choose two.)

• A、Use the custom application feature.
• B、Configure static NAT for the host.
• C、Use port address translation (PAT).
• D、Use the address-persistent option.

第18题：

You are creating a locally managed tablespace to meet the following requirements： All the extents should be of the same size.  The data should be spread across two data files.  A bitmap should be used to record the free space within the allocated extents. Which three options would you choose？（）

• A、set PCTFREE and PCTUSED to 50
• B、specify extent allocation as Uniform
• C、specify extent allocation as Automatic
• D、create the tablespace as bigfile tablespace
• E、create the tablespace as smallfile tablespace
• F、set segment space management to Automatic
• G、use the RESIZE clause while creating the tablespace

第19题：

Which two statements about sequences are true? （）

• A、You use a NEXTVAL pseudo column to look at the next possible value that would be generated from a sequence, without actually retrieving the value.
• B、You use a CURRVAL pseudo column to look at the current value just generated from a sequence, without affecting the further values to be generated from the sequence.
• C、You use a NEXTVAL pseudo column to obtain the next possible value from a sequence by actually retrieving the value from the sequence.
• D、You use a CURRVAL pseudo column to generate a value from a sequence that would be used for a specified database column.
• E、If a sequence starting from a value 100 and incremented by 1 is used by more then one application, then all of these applications could have a value of 105 assigned to their column whose value is being generated by the sequence.
• F、You use REUSE clause when creating a sequence to restart the sequence once it generates the maximum value defined for the sequence.

第20题：

第21题：

第22题：

第23题：

第24题：