About three—fifths of the work ________done yesterday．

A . EAP-FAST has the ability to tie login with non-Microsoft user databases B . EAP-TLS supports static passwords C . PEAP supports one-time passwords D . LEAP does not support multiple operating systems E . LEAP supports Layer 3 roaming F . PEAP does not work with WPA

A . union rules B . spare parts  C . service contracts D . fulfillment services E . warranty information F . construction permit

A . latency must be kept below 150 ms B . latency is not a concern as long as jitter is kept below 30 ms C . voice packets do not require a specific type of queuing D . voice packets are rather small E . voice packets require TCP for rapid retransmission of dropped packets F . voice packets require a fairly constant bandwidth reserved for voice control traffic as well as forthe voice payload

A . System privileges apply only to the PDB in which they are used. B . Local users cannot use local system privileges on the schema of a common user. C . The granter of system privileges must possess the set container privilege. D . Common users connected to a PDB can exercise privileges across other PDBs. E . System privileges with the with grant option container all clause must be granted to a common user before the common user can grant privileges to other users.

A . SNMPv3 enhanced SNMPv2 security features B . SNMPv3 added the Inform protocol message to SNMP C . SNMPv2 added the Inform protocol message to SNMP D . SNMPv3 added the GetBulk protocol messages to SNMP E . SNMPv2 added the GetBulk protocol message to SNMP F . SNMPv2 added the GetNext protocol message to SNMP

A . The packet priority received from a device that is connected to the phone will be unmodified. B . The packet priority received from a device that is connected to the phone will be overridden. C . Incoming CoS values in packets from the connected phone will be left unmodified. D . Packets without aCoS value that is set by the phone will be set to a value of 5. E . Incoming CoS values in packets from the connected phone will be reset to a value of 5. F . Packets without aCoS value that is set by the phone will be set to the default CoS value.

A . The corresponding indexes for the table are also truncated. B . Delete triggers on the table are fired during the execution of the TRUNCATE command. C . The child table is truncated when the TRUNCATE command is applied on the parent table. D . The high-water mark （HWM） is set to point to the first usable data block in the table segment. E . No undo or very little undo data is generated during the execution of the TRUNCATE command

A .  The DiffServ model requires applications to signal the network with QoS requirements. B .  The DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addresses. C .  The DiffServ model requires RSVP. D .  The best effort model is suitable for applications such as file transfer and e-mail E .  The IntServ model requires applications to signal the network with QoS requirements. F .  The IntServ model attempts to deliver a level of service based on the QoS specified by each packet

A . It incorporates a narrow range of technologies and products. B . It facilitates faster and more reliable customer deployments. C . It extends the value of designs through a sustained development plan. D . It incorporates products and technologies into enterprise, service provider, and commercial systems.

A .  EAP-FAST has the ability to tie login with non-Microsoft user databases B .  EAP-TLS supports static passwords C .  PEAP supports one-time passwords D .  LEAP does not support multiple operating systems E .  LEAP supports Layer 3 roaming F .  PEAP does not work with WPA&middot

A . Transparent mode is layer 2. B . Routed mode is layer 3. C . Routed mode has 1 IP address. D . Transparent mode has 1 IP address.

A . Data files and redo log files can be renamed at the MOUNT stage. B . Control files are read at the OPEN stage for the location of data files. C . Control files are required to bring the database to the NOMOUNT stage. D . Data files and redo log files are made available to users at the OPEN stage. E . Data files and online redo log files are checked for consistency while opening the database

A .  Transparent mode is layer 2. B .  Routed mode is layer 3. C .  Routed mode has 1 IP address. D .  Transparent mode has 1 IP address.

A . SLA sender target can be an IP host B . SLA sender sends a probe packet and a response probe packet C . SLA sender sends a probe packet D . SLA sender target must be a router E . SLA sender target can be an IP SLA responder

A . Each segment contains one or more extents. B . Multiple tablespaces can share a single data file. C . A data block is the smallest unit of input/output （I/O） in data files. D . It is possible to have tablespaces of different block sizes in a database. E . Each data block in the database always corresponds to one operating system block.

A . An object type is a user-defined composite data type.  B . The attributes of an object type can be those of other object types.  C . A PL/SQL table of records is an example of a nested object type.  D . An object type must be declared as a type before the actual object itself can be declared.

A . Statistics collection is not done for the CUSTOMERS table when schema stats are gathered. B . Statistics collection is not done for the CUSTOMERS table when database stats are gathered. C . Any existing statistics for the CUSTOMERS table are still available to the optimizer at parse time. D . Statistics gathered on the CUSTOMERS table when schema stats are gathered are stored as pending statistics. E . Statistics gathered on the CUSTOMERS table when database stats are gathered are stored as pending statistics.

1） the distribution of killers in different decades and the general bend in these decades 2） the possible reasons for the distribution of these killers in the city <img src='https://img2.soutiyun.com/ask/uploadfile/10842001-10845000/a4b73cacf6714c8a87917976df08a7d0.gif' />

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(1) Strategic planning is concerned with making decisions about the efficient and effective use of existing resources (2) Operational control is about ensuring that specific tasks are carried out efficiently and effectively Which of the above statements is/are true？ A.1 only B.2 only C.Neither 1 nor 2 D.Both 1 and 2

A. The optimizer automatically changes a plan during subsequent execution of a SQL statement if there is a huge difference in optimizer estimates and execution statistics. B. The optimizer can re optimize a query only once using cardinality feedback. C. The optimizer enables monitoring for cardinality feedback after the first execution of a query. D. The optimizer does not monitor cardinality feedback if dynamic sampling and multicolumn statistics are enabled. E. After the optimizer identifies a query as a re-optimization candidate, statistics collected by thecollectors are submitted to the optimizer.