protocol
VLAN number
TCP or UDP port numbers
source switch port number
source IP address and destination IP address
source MAC address and destination MAC address
第1题：
A.protocol
B.VLAN number
C.TCP or UDP port numbers
D.source switch port number
E.source IP address and destination IP address
F.source MAC address and destination MAC address
第2题：
第3题：
The Importance of Information in the Supply Chain Information is important because it provides the facts that supply chain managers use to make decisions. Without information, a manger will not know what customers want, how much inventory is in stock and when more products should be produced and shipped. In short, without information, a manager can only make decisions blindly. Managers must understand how information is gathered and analyzed. This is where information technology comes into play. Information technology serves as the eyes and ears of management in a supply chain, capturing and delivering the information necessary to make a good decision. For instance, an IT system at a personal computer manufacturer may help a manager analyze the information and recommend an action. The manager can use the remaining chips first, then look at demand forecast, and determine whether to order more chips. There are four reasons why timely and accurate information has become more important for effective logistics system design and operations. First, customers recognize information about order status, product availability, delivery schedule, and shipment tracking as necessary elements of total customer service. Then, managers realize that information can be used to reduce human resource requirements. What’s more, information increases flexibility with regard to how, when, and where resources may be used to gain strategic advantage. And finally, enhanced information transfer and exchange capability using the Internet is changing relationships between buyers and sellers and refining channel relationships.
21. Information is so important that()
A. managers can make decisions without it
B. managers can only make decisions blindly without it
C. managers will know nothing without it
22. Information technology()
A. could be used to gather and deliver information for?decision-making
B. is necessary to make a good decision
C. can be used to determine whether to order more chips
23. Information can()
A. help customers to know many things but not product availability.
B. not be used to reduce human resource requirements
C. help to refine channel relationships
24. If you are a manager, you will use information to().
A. help improve customer service
B. order more chips
C. know which staff member is not on duty and should be laid off
25. The main point of this passage is about().
A. how to use information
B. the importance of information
C. where to gather information
第4题：
NBAR is a Cisco IOS feature that can be used to perform three tasks？
第5题：
Which three pieces of information are contained in a Service Profile for related vNICs?（）
第6题：
第7题：
第8题：
A. Extended IS reachability
B. Extended IP reachability
C. Traffic engineering opaque
D. Traffic engineering router ID
E. Extended MPLS reachability
第9题：
Which three IS-IS TLVs are used to support MPLS traffic engineering？ （）
第10题：
Which of the following are correct regarding ISDN?（）