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Interleaving
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考题
When is it appropriate to enable Link Fragmentation and Interleaving (LFI) on DSL connections for Teleworkers?（）A、uplink speed less than 768kbpsB、supporting Voice-over-IPC、using PPPoE encapsulationD、using PPPoA encapsulationE、uplink speed greater than 768kbps
考题
Which three configuration tasks are required to successfully deploy NBAR to recognize TCP and UDP stateful protocols？（）A、Over leased lines，use the multilink ppp command to reduce latency and jitter，and to create Distributed Link Fragmentation and interleaving.B、Use the service-policy command to attach a traffic flow to an interface on the router.C、Use the ip rsvp bandwidth command to set a strict upper limit on the bandwidth NBAR uses，and toguarantee admission of any flows.D、Use the policy-map command to define one or more QoS policies （such as shaping，policing，and so on） to apply to traffic defined by a class map.E、Use the random-detect dscp command to modify the default minimum and maximum thresholds for the DSCP value.F、Use the class-map command to define one or more traffic classes by specifying the criteria by which traffic is classified.
考题
Which statement best describes the application of link fragmentation and interleaving （LFI）？（）A、It compresses the Layer 2 payload and marks the packet as a high priority to be transmitted firstB、It fragments larger packets and allows VoIP packets to be transmitted in between them.C、It stops the transmission of large packets when priority packets arrive.D、It sends high priority packets in between normal traffic packets.
考题
An expanding company is deploying leased lines between its main site and two remote sites. The bandwidth of the leased lines is 128kb/s each， terminated on different serial interfaces on the main router. These links are used for combined VOIP and data traffic. The network administrator has implemented a VOIP solution to reduce costs， and has therefore reserved sufficient bandwidth in a low latency queue on each interface for the VOIP traffic. Users now complain about bad voice quality although no drops are observed in the low latency queue.What action will likely fix this problem？（）A、mark VOIP traffic with IP precedence 6 and configure only ’fair-queue’ on the linksB、configure the scheduler allocate 3000 1000 command to allow the QoS code to have enough CPU cyclesC、enable class-based traffic shaping on the VoIP traffic classD、enable Layer 2 fragmentation and interleaving on the linksE、enable Frame Relay on the links and send voice and data on different Frame Relay PVCs
考题
Which is not a reason that Internet Service Providers prefer to use PPP over Ethernet (PPoE)?（）A、access control and billing can be done on a per-user, rather than a per-site basisB、supports Link Fragmentation and Interleaving C、provides the ability to connect a network of hosts over a simple bridging access deviceD、provides a consistent means of authenticating users (RADIUS for example)
考题
An administrator is adding additional memory into a server that registers 1GB of memory in the OS and notices that the system has 2GB of memory physically installed； however， the server only shows 1GB of memory during POST. Which of the following is the MOST likely reason for this？（）A、 The OS does not support more than 1GB of memory.B、 The system memory has different manufacture dates.C、 Two of the memory sticks are defective.D、 The server is using memory interleaving.
考题
Which of the following defines memory interleaving?（）A、The distribution of data written across all the memory DIMMs and the L1 cacheB、The distribution of data written across all the memory DIMMs in one bankC、The distribution of data written across all the memory DIMMs and the processorD、The distribution of data written across all the memory DIMMs and the L2 cache
考题
Some xSeries servers support 4-way memory interleaving and some support 2-way interleaving. In both types of interleaving， the data is accessed 256 bits at a time. How is this 256-bit data access achieved with 2-way interleaving？（）A、The DIMMs used for 2-way interleaving are double the width of DIMM used in 4-way interleaving.B、The DIMMs used for 2-way interleaving are 64-bit wide and data bits are accessed both on the rising edge and falling edge of the clock cycle.C、The DIMMs used for 2-way interleaving are 32-bit wide and data bits are accessed both on the rising edge and falling edge of the clock cycle.D、The DIMMs used for 2-way interleaving are double the width and data bits are accessed both on the rising edge and falling edge of the clock cycle.
考题
Which memory technology combination on the x255 will allow for two memory banks to fail while maintaining the server？（）A、Memory mirroring and hot swap memoryB、Memory mirroring and hot spare memoryC、Four way memory interleaving and chipkillD、Four way memory interleaving and memory mirroring
考题
多选题When is it appropriate to enable Link Fragmentation and Interleaving (LFI) on DSL connections for Teleworkers?（）Auplink speed less than 768kbpsBsupporting Voice-over-IPCusing PPPoE encapsulationDusing PPPoA encapsulationEuplink speed greater than 768kbps
考题
单选题Which statement best describes the application of link fragmentation and interleaving （LFI）？（）A
It compresses the Layer 2 payload and marks the packet as a high priority to be transmitted firstB
It fragments larger packets and allows VoIP packets to be transmitted in between them.C
It stops the transmission of large packets when priority packets arrive.D
It sends high priority packets in between normal traffic packets.
考题
多选题Which two statements are true about MLP interleaving？ （）AIt fragments and encapsulates all packets in a fragmentation header.BPackets smaller than the fragmentation size are interleaved between the fragments of thelarger packets.CPackets larger than the fragmentation size are always fragmented， and cannot be interleaved，even if the traffic is voice traffic.DIt fragments and encapsulates packets that are longer than a configured size， but does not encapsulate smaller packets inside a fragmentation header.
考题
单选题An administrator is adding additional memory into a server that registers 1GB of memory in the OS and notices that the system has 2GB of memory physically installed; however, the server only shows 1GB of memory during POST. Which of the following is the MOST likely reason for this?（）A
The OS does not support more than 1GB of memory.B
The system memory has different manufacture dates.C
Two of the memory sticks are defective.D
The server is using memory interleaving.
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