Which two are effects of connecting a network segment that is running 802.1D to a network  segment that is running 802.1w？（）

A .  class of service B .  bandwidth profiles C .  user-network interface D .  Ethernet LAN circuit attributes E .  Ethernet virtual circuit attribute

A .  RSVP itself provides bandwidth and delay guarantees. B .  For RSVP to be end-to-end， all devices must support RSVP. C .  RSVP reservations are maintained by a centralized reservations server. D .  An RSVP compatible QoS mechanism must be used to implement guarantees according to RSVP reservations.

A .  Layer 3 MPLS VPNs can forward only IP packets B .  Layer 2 MPLS VPNs can forward any network protocol C .  MPL S label paths are automatically formed based on Layer 2 frames D .  Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 frames E .  In Layer 2 MPLS VPNS， the service provider controls the customer Layer 3 policie

A . The application will crash. B . The code on line 29 will be executed. C . The code on line 5 of class A will execute. D . The code on line 5 of class B will execute. E . The exception will be propagated back to line 27.

A . Burning oil B . Electrical C . Paint D . All of the above

A . work staff attributes， such as skills and communication B . redundancy， to prevent single points of failure C . processes， such as documentation， change control， and labs D . appropriate technology， such as hardware and software E . tools， such as those for monitoring and reporting

A . Router C will use ICMP to inform Host 1 that Host 2 cannot be reached B . Router C will use ICMP to inform Router B that Host 2 cannot be reached C . Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached D . Router C will send a Destination Unreachable message type E . Router C will send a Router Selection message type F . Router C will send a Source Quench message type

A . No flashback is possible to bring back the ITEM table. B . The ORDER table is dropped along with the ITEM table. C . The dependent referential integrity constraints in the ORDER table are disabled. D . The dependent referential integrity constraints in the ORDER table are removed. E . The table definition of the ITEM table and associated indexes are placed in the recycle bin.

A . For non-negative values of the left operand， the >> and >>> operators will have the same effect. B . The result of （-1 >> 1） is 0. C . The result of （-1 >>> 1） is -1. D . The value returned by >>> will never be negative as long as the value of the right operand is equal  to or greater than 1. E . When using the >> operator， the leftmost bit of the bit representation of the resulting value will always be the same bit value as the leftmost bit of the bit representation of the left operand.

A . iSQL*Plus commands cannot be abbreviated. B . iSQL*Plus commands are accessed from a browser. C . iSQL*Plus commands are used to manipulate data in tables. D . iSQL*Plus commands manipulate table definitions in the database. E . iSQL*Plus is the Oracle proprietary interface for executing SQL statements.

A . A CHECK constraint is created on the OID column. B . A NOT NULL constraint is created on the OID column. C . The ORDERS table is the only object created in the USERS tablespace. D . The ORDERS table and a unique index are created in the USERS tablespace. E . The ORDERS table is created in the USERS tablespace and a unique index is created on the OIDcolumn in the SYSTEM tablespace.

A . multicast B . broadcast C . allcast D . podcast E . anycast

A . They are known as fabric routing. B . They cannot span multiple switches. C . Their connectivity is supported by Layer 2. D . They enable devices in different VSAN fabrics to communicate. E . They require that multiple switch fabrics be merged before they can function.

A . class of service B . bandwidth profiles C . user-network interface D . Ethernet LAN circuit attributes E . Ethernet virtual circuit attribute

A . RSVP itself provides bandwidth and delay guarantees. B . For RSVP to be end-to-end, all devices must support RSVP. C . RSVP reservations are maintained by a centralized reservations server. D . An RSVP compatible QoS mechanism must be used to implement guarantees according to RSVP reservations.

A .  b.equals（b） returns true. B .  b.equals（c） returns the same result as b == c. C .  b.eqials（c） can return false even if c.equals（b） returns true. D .  b.equals（c） throws an exception if b and c are different wrapper types. E .  b.equals（c） returns false if the type of wrapper objects being compared are different.

A .  multicast routing uses RPF B .  multicast routing is connectionless. C .  In multicast routing， the source of a packet is known. D .  When network topologies change， multicast distribution trees are not rebuilt， but use the originalpath E .  Multicast routing is much like unicast routing， with the only difference being that it has a a groupof receivers rather than just one destinatio

A . The application will crash. B . The code on line 29 will be executed. C . The code on line 5 of class A will execute. D . The code on line 5 of class B will execute. E . The exception will be propagated back to line 27.

A . A CHECK constraint is created on the OID column. B . A NOT NULL constraint is created on the OID column. C . The ORDERS table is the only object created in the USERS tablespace. D . The ORDERS table and a unique index are created in the USERS tablespace. E . The ORDERS table is created in the USERS tablespace and a unique index is created on the OID columnin the SYSTEM tablespace.

A . It is possible to synchronize static methods. B . When a thread has yielded as a result of yield（）， it releases its locks. C . When a thread is sleeping as a result of sleep（）， it releases its locks. D . The Object.wait（） method can be invoked only from a synchronized context. E . The Thread.sleep（） method can be invoked only from a synchronized context. F . When the thread scheduler receives a notify（） request， and notifies a thread， that thread immediately releases its lock.

<img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/900591de4611848eaa661230b23f7c01.jpg' /> <img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/096a8f1a86972212e5c4d4c53f88ec71.jpg' /> A.The application will crash. B.The code on line 29 will be executed. C.The code on line 5 of class A will execute. D.The code on line 5 of class B will execute. E.The exception will be propagated back to line 27.