Which two steps check out a database connection from the connection pool?（）

A .  byte B .  long C .  char D .  float E .  Short F .  Long

A .  decrypts the received MAC using a secret key B .  compares the computed MAC vs. the MAC received C .  authenticate the receivedmessage using the sender’s public key D .  look up the sender’s public key E .  extracts the MAC from the receivedmessage thenencrypts the received message with a secret keyto producethe MAC F .  Computes the MAC using the receivedmessage and a secret key as inputs to the hash functio

A、engaged in fishing in a traffic lane B、servicing a submarine cable C、towing another D、engaged on pilotage duty

A .  Enable feature vPC B .  Define domains C .  Establish peer keepalive connectivity D .  Create a peer link E .  Configure the peer link as a trunk port F .  Create port channels and vPCs G .  Define port channel load-balancing method H .  Make sure configurations are consistent

A . Use the command PURGE BINARY LOGS and specify a binary log file name or a date and time to remove unused files B . Execute the PURGE BINARY LOGE NOT USED command C . Remove all of the binary log files that have a modification date earlier than today D . Edit the .index file to remove the files you want to delete E . Ensure that none of the attached slaves are using any of the binary logs you want to delete

A . Host 1 addresses the frames to the MAC address of router R1 B . Host 1 looks in its ARP cache for the MAC address of router R1 C . Host 1 addresses the frames to the MAC address of web server 2 D . Host 1 sends the packets to router R1 to be forwarded to web server 2 E . Host 1 sends a broadcast ARP request to obtain the MAC address of webserver2

A . It prevents message looping，Session Advertisement（SA）messages must be RPF checked B . RPF check should be done against the route to the Rendez-vous Point of the corresponding PIM-SM domain，which originated the SA C . RPF checking Session Advertisement（SA）messages will cause message looping D . RPF check should be done against the route to the source S of the corresponding PIM-SM domai

A . The compute node reboots and is then connected to the CMC B . A compute node is assigned to a service profile C . if the association is successful the cisco UCS manager boots the cisco UUOS to configure the compute node D . The compute node reboots to reload and then loads NX OS and establishes connections to both the CMC and the IOM

A . Running a query on a table returns "ORA-600： Internal Error." B . Inserting a value in a table returns "ORA-01722： invalid number." C . Creating a table returns "ORA-00955： name is already used by an existing object." D . Inserting a value in a table returns "ORA-00001： unique constraint （SYS.PK_TECHP） violated."  E . Inserting a row in a table returns "ORA-00060： deadlock detected while waiting for resource.&quot

A . listing the employees who earn the same amount of commission as employee 3 B . finding the total commission earned by the employees in department 10 C . finding the number of employees who earn a commission that is higher than the average commission of the company D . listing the departments whose average commission is more that 600 E . listing the employees who do not earn commission and who are working for department 20 in descending order of the employee ID F . listing the employees whose annual commission is more than 6000

A . Set the UNDO_RETENTION parameter to 900 or more. B . Create an initial undo segment in the undo tablespace. C . Enable the retention guarantee for the undo tablespace. D . Set the UNDO_TABLESPACE parameter to UNDO_TBS1. E . Set the UNDO_MANAGEMENT initialization parameter to AUTO.

A . Are the ASBRs trying to redistribute the external routes into a totally stubby area? B . Are the ABRs configured with stubby areas? C . Is the subnets keyword being used with the redistribution command? D . Is backbone area (area 0) contiguous? E . Is the CPU utilization of the routers high?

A .  Health Monitor checks can be used to scan the contents of the redo log and archive logs for accessibility and corruption. B .  Health Monitor checks can be used to verify the integrity of database files and report failures if these files are inaccessible，corrupt or inconsistent. C .  Health Monitor checks can be used to verify the contents of dictionary entries for each dictionary object and fix it automatically. D .  Health Monitor checks are always initiated manually when there is some critical error.

A . Creating the parse tree of the statement B . Writing the modified data blocks to the data files C . Writing the modified data to the archived redo log files D . Updating the control file to indicate the most recent checkpoint E . Updating the data file header to indicate the most recent checkpoint F . Reading the blocks to database buffer cache if they are not already there

A . Always stop the server prior to the backup B . Stop the server or lock the tables prior to the backup C . Stop the server or lock the databases prior to the backup D . Make a copy of the .frm, .myd, and the .myi files E . Make a copy of the binary log and tablespace file

A . Configure a dynamic routing protocol. B . Configure SVI interfaces with IP addresses and subnet masks. C . Configure switch ports with network addresses. D . Configure switch ports with the autostate exclude command. E . Document the MAC addresses of the switch ports.

A . Set the NHRP hold time to match the EIGRP hold time B . Add the enable eigrp stub command C . Add the disable eigrp as-member split-horizon command D . Add the disable eigrp as-member next-hop-self command

A .  String s = “123456789”； s = （s-”123”）.replace（1，3，”24”） - “89”； B .  StringBuffer s = new StringBuffer（”123456789”）； s.delete（0，3）.replace（ 1，3， “24”）.delete（4，6）； C .  StringBuffer s = new StringBuffer（”123456789”）； s.substring（3，6）.delete（ 1 ，3）.insert（1， “24”）； D .  StringBuilder s = new StringBuilder（”123456789”）； s.substring（3，6）.delete（ 1 ，2）.insert（ 1， “24”）； E .  StringBuilder s = new StringBuilder（”123456789”）； s.delete（0，3）.delete（ 1 ，3）.delete（2，5）.insert（ 1， “24”）；

A . Configure a routing process using the command ipv6 router ospf [process-id]. B . Add the network statement for the interfaces on which OSPF will run. C . Configure OSPF on the interface that it will run on. D . Use the passive-interface command on the interfaces on which OSPF should not run. E . Enable routing.

A . OSPF process ID B . OSPF router ID C . OSPF network type D . OSPF memory usage E . OSPF CPU utilization F . OSPF stub area configuratio

A . The customer uses SNMP statistics to create the policy. B . QoS policy templates are generated and installed on the interface. C . RTP is used to generate the policy. D . LLQ，cRTP，and LFI are used to automatically discover the policy. E . The auto-generated policy is manually optimized before implementation. F . Auto-discovery is used to determine what traffic is on the interface.

A．both B．each C．either D．neither

A．结帐 B．登记 C．报到 此题为多项选择题。