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You work as a network technician. Your boss is interested in the QoS technology in the context ofvideo traffic. What can be said of application of this technology in this type of network？（）
A . The access layer is the initial point at which traffic enters the network. Traffic is marked （orremarked） at Layers 2 and 3 by the access switch as it enters the network， or is "trusted" that it isentering the network with the appropriate tag
B . No traffic marking occurs at the core layer. Layer 2/3 QoS tags are trusted from distributionlayer switches and used to prioritize and queue the traffic as it traverses the core
C . Traffic inbound from the access layer to the distribution layer can be trusted or reset dependingupon the ability of the access layer switches. Priority access into the core is provided based onLayer 3 QoS tags
D . IP precedence， DSCP， QoS group， IP address， and ingress interface are Layer 2 characteristics that are set by the access layer as it passes traffic to the distribution layer. Thedistribution layer， once it has made a switching decision to the core layer， strips these off
E . MAC address， Multiprotocol Label Switching （MPLS）； the ATM cell loss priority （CLP） bit， theFrame Relay discard eligible （DE） bit， and ingress interface are established by the voicesubmodule （distribution layer） as traffic passes to the core layer
F . The distribution layer inspects a frame to see if it has exceeded a predefined rate of trafficwithin a certain time frame， which is typically a fixed number internal to the switch. If a frame isdetermined to be in excess of the predefined rate limit， the CoS value can be marked up in a waythat results in the packet being dropped
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Utterance is based on （）;it is the realization of the abstract meaning of a sentence in a real situation of communication,or simply in a context.
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Which of the following is not a valid setting for the PROGRAM_TYPE parameter in a program object or the JOB_TYPE parameter in a job object？（）
A . PLSQL_BLOCK
B . JAVA_STORED_PROCEDURE
C . STORED_PROCEDURE
D . EXECUTABLE
E . None of the above are invalid settings.
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What is the action of "pop" in the context of MPLS switching？（）
A . It removes the top label in the MPLS label stack.
B . It adds a top label in MPLS label stack.
C . It replaces the top label in the MPLS label stack with another value.
D . It replaces the top label in the MPLS label stack with a set of labels.
E . None of above.
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In the context of configuring dial-on-demand routing using ISDN, what is the purpose of the dialer-list command?（）
A . to identify valid numbers for incoming calls
B . to define the type of ISDN switch at the central office
C . to specify the list of outgoing phone numbers used by the router
D . to associate a dial configuration with a physical interface
E . to define interesting traffic that will enable the link
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Which of the following is not a valid setting for the PROGRAM_TYPE parameter in a program object or the JOB_TYPE parameter in a job object?（）
A . PLSQL_BLOCK
B . JAVA_STORED_PROCEDURE
C . STORED_PROCEDURE
D . EXECUTABLE
E . None of the above are invalid settings.
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In the context of GMPLS，LMP stands for（）.
A . Loop Management Protocol
B . Label Management Protocol
C . Load Management Protocol
D . Link Management Protocol
E . None of above
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What is the objective of the aaa authentication login console-in local command？（）
A . It specifies the login authentication method list named console-in using the local user database on the router
B . It specifies the login authorization method list named console-in using the local RADIUS username-password data base
C . It specifies the login authentication list named console-in using the local username- password data base on the router
D . It specifies the login authorization method list named console-in using the local username- password data base on the router
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How does the weighty property of the GridBagConstraints objects used in grid bag layout affect the layout of the components？（）
A . It affects which grid cell the components end up in.
B . It affects how the extra vertical space is distributed.
C . It affects the alignment of each component.
D . It affects whether the components completely fill their allotted display area vertically.
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The correct meaning of a lexical item in a given context is____.
A . the one provided in a dictionary
B . the one which best fits the context
C . the central or core meaning of the item
D . the one which is assumed to be correct
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The correct meaning of a lexical item in a given context is＿＿.
A . the one provided in a dictionary
B . the one which best fits the context
C . the central or core meaning of the item
D . the one which is assumed to be correct
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In the context of MPLS Traffic engineering， TE path calculation is conducted by（）.
A . TE middle point
B . TE tail end
C . TE head end
D . All TE nodes along the path
E . Independent server
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10. public Object m（） { 11. Object o = new Float（3.14F）； 12. Object [] oa = new Object[1]； 13. oa[0] = o； 14. o = null； 15. return oa[0]； 16. } When is the Float object， created in line 11， eligible for garbage collection？（）
A . Just after line 13.
B . Just after line 14.
C . Never in this method.
D . Just after line 15 （that is， as the method returns）.
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In the context of Advanced Power Virtualization， the shared pool refers to which of the following？（）
A . A pool of physical memory that can be used by any partition
B . A pool of physical processors that can be used by any virtual or dedicated partition
C . A pool of physical memory that can be used by multiple Micro-Partitions
D . A pool of physical processors that can be used by multiple Micro-Partitio
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1. public class X （ 2. public object m （） { 3. object o = new float （3.14F）； 4. object [] oa = new object [1]； 5. oa[0]= o； 6. o = null； 7. return oa[0]； 8. } 9. } When is the float object created in line 3， eligible for garbage collection？（）
A . Just after line 5
B . Just after line 6
C . Just after line 7 （that is， as the method returns）
D . Never in this method.
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public class X { public object m （） { object o = new float （3.14F）； object oa = new object [1]； oa[0]= o； o = null； return oa[0]； } } When is the float object created in line 3， eligible for garbage collection？（）
A . Just after line 5
B . Just after line 6
C . Just after line 7 （that is， as the method returns）
D . Never in this method.
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Which of the following answers are correct characteristics of microsegmentation, in the context of a Local Area Network (LAN)?（）
A . Dedicated paths between sending and receiving hosts are established.
B . Multiple subnetwork broadcast addresses are created.
C . Multiple ARP tables are needed.
D . The decrease in the number of collision domains.
E . Broadcast domains are enhanced.
F . Additional bandwidth is used to connect hosts.
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In the context of MPLS，what is the correct action to be performed when an aggregate label is received ？（）
A . It adds the VPN label into the top label in the MPLS label stack
B . It replaces the top label in the MPLS label stack with a VPN label and propagates
C . It replaces the bottom label in the MPLS label stack with a VPN label and propagates
D . It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packets
E . None of above
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In high-context culture, the mass of information is vested in the explicit code.
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In which of the following contexts could we use the idiom “ 按图索骥 ” ?
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In low context cultures, the verbal message contains most of the information and very little is shown in the _____ or the _____.
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In the context of the reading, what does the word reserving most closely mean?
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The primay objective of investing in temporary invesmens is to ()
A.Expansion
B.Replacement of management
C.realize gains from increases in the market price of the securities
D.earn interest income
E.receive dividends
此题为多项选择题。
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A．In the top view, the side away from the main view is in front of the object
B．In the top view, the side away from the main view is behind the object
C．In the left view, the side away from the main view is in front of the object
D．In the left view, the side away from the main view is behind the object
此题为多项选择题。
