18. What is context?

A .  ACE sticky license is not installed B .  ACE stickiness is not supported in a non-admin context C .  ACE stickiness resources are not defined in an admin context D .  Stickiness is configured properly in the CCIE virtual context

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

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.

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

A . MPLS TE B . MPLS VPN C . When CEF switching and Label switching is done D . In all the above circumstance

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

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

'Utterance meaning is context-independent.()

W: Hold on. Let me check them out first. Q: What will the woman probably do next？ (16) A．Lend the man some money. B．Calculate the bill again. C．Refuse to pay the bill. D．Invite the man to dinner.

A．Strong measures will be taken to prevent oceans from being further polluted. B．Oceanic resources will be exploited regardless of environmental protection. C．Bans on destructive activities will not be ignored. D．Development will be placed above other factors.

A．tell B．tells C．telling D．be told

A．non-detachability B．calculability C．conventionality D．defeasibility