Routers perform the decision process that selects what path a packet takes. These （ ） layer devices participate it the collection and distribution of network-layer information, and perform Layer 3 switching based on the contents of the network layer （ ） of each packet. You can connect the routers directly by point-to-point （ ） or local-area networks, or you can connect them by LAN or WAN switches. These Layer 2 switches unfortunately do not have the capability to hold Layer 3 （ ） information or to select the path taken by a packet through analysis of its Layer 3 destination address. Thus, Layer 2 switches be involved in the Layer 3 packet （ ） decision process.A.application B. network C.physical D.link A.header B.connection C.protocol D.data A.medium B.links C.switches D.carriers A.network B.links C.protocol D.routing A.switching B.processing C.forwarding D.connecting
Routers perform the decision process that selects what path a packet takes. These （ ） layer devices participate it the collection and distribution of network-layer information, and perform Layer 3 switching based on the contents of the network layer （ ） of each packet. You can connect the routers directly by point-to-point （ ） or local-area networks, or you can connect them by LAN or WAN switches. These Layer 2 switches unfortunately do not have the capability to hold Layer 3 （ ） information or to select the path taken by a packet through analysis of its Layer 3 destination address. Thus, Layer 2 switches be involved in the Layer 3 packet （ ） decision process.
A.application B. network C.physical D.link A.header B.connection C.protocol D.data A.medium B.links C.switches D.carriers A.network B.links C.protocol D.routing A.switching B.processing C.forwarding D.connecting
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阅读下面的短文，回答问题 [When an IP packet arrives at a router, generally the router looks at the destination address of the packet, and forwards the packet to one of its network interfaces. The forwarding decision is usually done by looking up the destination address from another data structure called a forwarding table. The forwarding table is created by the router using the routing table and possible routing policies existing in the router. The router then creates a table where it lists which networks are accessible through which of the routers network interfaces. An IP router looks at every IP packet individually and does the forwarding decision on a packet-by-packet basis. If something changes in the routers routing table, a packet can take a different route from a preceding packet even if it has the same destination.] From the paragraph above，we can see that the router （ ） a forwarding table according to the routing table and possible routing policies existing in the router. When an IP packet arrives at a router, the （ ） part of packet is normally checked by the router. An IP router checks every IP Packet individually and makes the forwarding decision based on （ ）.A．is generating B．generate C．is generated D．generates A．forwarding table B．network interfaces C．routing policies D．destination address A．the destination address and network interfaces B．forwarding table and network interfaces C．the destination address and forward table D．routing policies and routing table
Cisco is the leader in the router market space. What basic functions do their routers perform. in a network? (Choose two)A. The microsegmentation of broadcast domainsB. Path selectionC. Packet switchingD. Bridging between LAN segmentsE. Access layer securityF. VLAN membership assignmentG. Application optimization
How does a process description function?A. It describes what an object is like.B. It explains how something works.C. It explains how to perform. a process.
What are two ways that packet fragmentation is handled differently between IPv6 and IPv4?() A. End hosts determine the path MTU for IPv6.B. End hosts determine the path MTU for IPv4.C. Packet fragmentation occurs at intermediate nodes for IPv4.D. Packet fragmentation occurs at intermediate nodes for IPv6.
What is the first CoS process performed when a packet enters a JUNOS device?() A.Rewrite MarkerB.Multifield ClassifierC.PolicingD.BA Classifier
What is the last CoS process performed prior to a packet leaving a router?() A.Rewrite MarkerB.Multifield ClassifierC.PolicingD.BA Classifier
Routers perform which of the following functions?() A. Packet switchingB. Collision prevention on a LAN segment.C. Packet filteringD. Broadcast domain enlargementE. Broadcast forwardingF. Internetwork communication
What functions do routers perform in a network?() A. packet switchingB. access layer securityC. path selectionD. VLAN membership assignmentE. bridging between LAN segmentsF. microsegmentation of broadcast domains
Routers perform which of the following functions?（）A、Packet switchingB、Collision prevention on a LAN segment.C、Packet filteringD、Broadcast domain enlargementE、Broadcast forwardingF、Internetwork communication
What functions do routers perform in a network (Choose two.)（）。A、packet switchingB、access layer securityC、path selectionD、VLAN membership assignmentE、bridging between LAN segmentsF、microsegmentation of broadcast domai
What functions do routers perform in a network?（）A、Packet SwitchingB、Access Layer SecurityC、Path Selection.D、VLAN Membership Assignment.E、Bridging between LAN segments.F、Micro-segmentation of Broadcast Domains.
BGP best route selection process is based on what ？（）A、lowest costB、highest bandwidthC、lowest hop-countD、path attributesE、lowest delay
Whichof the following are valid modes of packet switching on most routers？（Choose all thatapply.）（）A、Cisco Express FonvardingB、FIB switchingC、Cache switchingD、Optimized switchingE、Process switchingF、Fast switching
What is a static packet-filtering firewall used for ？（）A、It validates the fact that a packet is either a connection request or a data packet belonging to a connectionB、It evaluates network packets for valid data at the application layer before allowing connectionsC、It analyzes network traffic at the network and transport protocol layersD、It keeps track of the actual communication process through the use of a state table
Regarding fast path processing, when does the system perform the policy check?（）A、The policy is determined after the SCREEN options check.B、The policy is determined only during the first packet path, not during fast path.C、The policy is determined after the zone check.D、The policy is determined after the SYN TCP flag.
Which three options are considered in the spanning-tree decision process？（）A、lowest root bridge IDB、lowest path cost to root bridgeC、lowest sender bridge IDD、highest port IDE、highest root bridge IDF、highest path cost to root bridge
For best packet switching performance with crypto, what is the recommend packet switching path in a Cisco Teleworker Router?（）A、Process SwitchingB、Silicon Switching C、Cisco Express Forwarding (CEF) SwitchingD、Autonomous Switching
What functions do routers perform in a network?（）A、packet switchingB、access layer securityC、path selectionD、VLAN membership assignmentE、bridging between LAN segmentsF、microsegmentation of broadcast domains
What are two ways that packet fragmentation is handled differently between IPv6 and IPv4?（）A、End hosts determine the path MTU for IPv6.B、End hosts determine the path MTU for IPv4.C、Packet fragmentation occurs at intermediate nodes for IPv4.D、Packet fragmentation occurs at intermediate nodes for IPv6.
单选题Regarding fast path processing, when does the system perform the policy check?（）AThe policy is determined after the SCREEN options check.BThe policy is determined only during the first packet path, not during fast path.CThe policy is determined after the zone check.DThe policy is determined after the SYN TCP flag.
多选题Which three options are considered in the spanning-tree decision process？（）Alowest root bridge IDBlowest path cost to root bridgeClowest sender bridge IDDhighest port IDEhighest root bridge IDFhighest path cost to root bridge
单选题What is the last CoS process performed prior to a packet leaving a router?（）ARewrite MarkerBMultifield ClassifierCPolicingDBA Classifier
多选题What functions do routers perform in a network?（）Apacket switchingBaccess layer securityCpath selectionDVLAN membership assignmentEbridging between LAN segmentsFmicrosegmentation of broadcast domains
多选题What functions do routers perform in a network? (Choose two.)（）Apacket switchingBaccess layer securityCpath selectionDVLAN membership assignmentEbridging between LAN segmentsFmicrosegmentation of broadcast domains
单选题What is the first CoS process performed when a packet enters a JUNOS device?（）ARewrite MarkerBMultifield ClassifierCPolicingDBA Classifier
单选题For best packet switching performance with crypto, what is the recommend packet switching path in a Cisco Teleworker Router?（）AProcess SwitchingBSilicon Switching CCisco Express Forwarding (CEF) SwitchingDAutonomous Switching
单选题Which of the following is not a characteristic of fast switching？（）AFast switching reducesa routers CPU utilization， compared to process switchingBAll packets of a flow， except for the first packet， use the information in the fast cacheCIt can be enabled with the interface command ip route-cacheDFast switching uses a fast cache maintained in a router’s control planeEThe fast cache contains information about how traffic from different data flows should beforwardedFEven though the fast switching is enabled， the first packet of a flow is still process switched