Which four are correct guidelines for naming database tables? （）

A . NetFlow records bidirectional IP traffic flow. B . NetFlow export can be implemented over IPv4. C . NetFlow export can be implemented over IPv6. D . NetFlow records multicast IP traffic flow. E . NetFlow records ingress traffic. F . NetFlow records egress traffic.

A . EVC infrastructure is a Layer 3 platform-independent routing architecture that supports IP overEthernet services B . Ethernet flow point （EFP） is configured on the main interface C . Feature commands like MQC-based QoS policies can be specified D . EVC infrastructure is a Layer 2 platform-independent bridging architecture that supports Ethernetservices E . Each Ethernet flow point （EFP） matches a predefined VLAN tag-based criteria F . Ethernet flow point （EFP） is configured on the VLAN interface

A . Zoning increases security. B . DNS queries are used for software zoning. C . Software zoning is more secure than hardware zoning. D . When using zones and VSANs together, the zone is created first. E . Zoning requires that VSANs be established before it becomes operational.

A .  gold， silver， bronze， and platinum B .  platinum， gold， silver， and bronze C .  titanium， gold， silver， and bronze D .  voice and video， best effort， background， and scavenger E .  voice， video， best effort， and background F .  voice， video， best effort， and scavenger

A .  When a table is dropped， the corresponding indexes are automatically dropped. B .  For each DML operation performed， the corresponding indexes are automatically updated. C .  Indexes should be created on columns that are frequently referenced as part of an expression. D .  A non-deferrable PRIMARY KEY or UNIQUE KEY constraint in a table automatically creates a uniqueindex.

A . Label B . VPI VCI C . EXP D . TTL E . FCS F . S flag

A . The source and target platforms must be the same B . Redo logs, control files and temp files are also transported C . The transported database must have the same database identifier (DBID) as the source database and cannot be changed D . The COMPATIBLE parameter must be set to 10.0.0.0 or higher and the database must be opened in readonly mode before being transported E . Recovery Manager (RMAN) is used to convert the necessary data files of the database if the target platform is different and has different endian format

A . Has-a relationships should never be encapsulated. B . Has-a relationships should be implemented using inheritance. C . Has-a relationships can be implemented using instance variables. D . Is-a relationships can be implemented using the extends keyword. E . Is-a relationships can be implemented using the implements keyword. F . An array or a collection can be used to implement a one-to-many has-a relationship.

A .  Has-a relationships should never be encapsulated. B .  Has-a relationships should be implemented using inheritance. C .  Has-a relationships can be implemented using instance variables. D .  Is-a relationships can be implemented using the extends keyword. E .  Is-a relationships can be implemented using the implements keyword. F .  An array or a collection can be used to implement a one-to-many has-a relationship. G .  The relationship between Movie and Actress is an example of an is-a relationship.

A . CASCADE B . UNIQUE C . NONUNIQUE D . CHECK E . PRIMARY KEY F . CONSTANT G . NOT NULL

A .  Home， Configure， Location， and Monitor B .  Home， Configure， Monitor， and Refresh C .  Home， Monitor， Refresh， and Administration D .  Monitor， Configure， Location， and Administration E .  Monitor， Configure， Refresh， and Administration F .  Monitor， Location， Refresh， and Administratio

A . string B . character C . integer D . calendar E . numeric F . translation G . date H . conversio

A .  Zoning increases security. B .  DNS queries are used for software zoning. C .  Software zoning is more secure than hardware zoning. D .  When using zones and VSANs together， the zone is created first. E .  Zoning requires that VSANs be established before it becomes operational.

A . Indexes and views can be created on temporary tables. B . Both the data and the structure of temporary tables can be exported. C . Temporary tables are always created in a user’s temporary tablespace. D . The data inserted into a temporary table in a session is available to other sessions. E . Data manipulation language （DML） locks are never acquired on the data of temporary table

A . At zero load the intake manifold pressure is greater than the exhaust manifold pressure B . At full load the intake manifold pressure and exhaust manifold pressure are equal C . At full load the intake manifold pressure is less than the exhaust manifold pressure D . At full load the intake manifold pressure is greater than the exhaust manifold pressure

A . cannot be nested B . manipulate data items C . act on each row returned D . return one result per row E . accept only one argument and return only one value F . accept arguments which can be a column or an expressio

A .  Database Service B .  Data Service C .  Java Service D .  Security Service E .  .NET Service F .  SOA Service

A . INSTR returns the numeric position of a named character. B . NVL2 returns the first non-null expression in the expression list. C . TRUNCATE rounds the column, expression, or value to n decimal places. D . DECODE translates an expression after comparing it to each search value. E . TRIM trims the heading or trailing characters (or both) from a character string. F . NVL compares two expressions and returns null if they are equal, or the first expression if they are not equal. G . NULLIF compares two expressions and returns null if they are equal, or the first expression if they are not equal.

A . contain，inoculate，quarantine，and treat B . inoculate，contain，quarantine，and treat C . quarantine，contain，inoculate，and treat D . preparation，identification，traceback，and postmortem E . preparation，classification，reaction，and treat F . identification，inoculation，postmortem，and reactio

A . EIGRP advertises the best routes to its neighbor B . EIGRP uses "cost" to determine best path C . EIGRP allows unequal cost load balancing D . OSPF requires neighbor adjacencies before updates are sent E . EIGRP advertises all routes to its neighbor F . OSPF allows unequal cost load balancing

A . video B . intercompany communications C . covergence protocols D . dedicated networking E . clod computing F . enterprise social networking G . interoperability