This page was exported from Easily Pass By Training Lead2pass Latest Dumps [ https://www.freebraindump.com ] Export date:Mon Apr 21 6:16:42 2025 / +0000 GMT ___________________________________________________ Title: [Full Version] 642-887 New Questions Free Download In Lead2pass (81-100) --------------------------------------------------- 2016 December Cisco Official New Released 642-887 Dumps in Lead2pass.com! 100% Free Download! 100% Pass Guaranteed! Lead2pass is now offering Lead2pass 642-887 dumps PDF and Test Engine with 100% passing guarantee. Buy Lead2pass 642-887 PDF and pass your exam easily. If you want real exam simulation then buy test engine and install on your pc for preparation. Following questions and answers are all new published by Cisco Official Exam Center: http://www.lead2pass.com/642-887.html QUESTION 81 What are the four fields inside the MPLS shim header? (Choose four.) A.    EXP B.    TTL C.    Version D.    S E.    Length F.    Label G.     Type H.     FCS Answer: ABDF QUESTION 82 Which two of the following statements are correct regarding LSPs? (Choose two.) A.    An LSP is created for every routing protocol entry. B.    Each LSP is bidirectional, that is, packets traveling in the opposite direction use the same LSP. C.    An IGP is used to populate routing tables in all routers in an MPLS domain. D.    LDP is used to propagate labels and build LSPs. E.    The FIB is used to forward MPLS-labeled packets down an LSP. Answer: CD QUESTION 83 Layer 2 VPN services that are offered by traditional service providers using a SONET/SDH backbone can be implemented by service providers using an IP/MPLS backbone with which MPLS feature? A.    LSP stitching B.    AToM C.    virtual private WAN services D.    cell-mode MPLS Answer: B QUESTION 84 On Cisco routers, which QoS marker is only locally significant? A.    DSCP B.    MPLS EXP C.    IP precedence D.    QoS group E.    discard eligible (DE) Answer: D QUESTION 85 Which item is not available to be used for QoS classification in Cisco IOS XR? A.    MAC SA B.    protocol C.    inner EXP D.    discard-class E.    QoS-group F.    VLAN Answer: C QUESTION 86 Which two traffic types are recognized by NBAR default configuration settings? (Choose two.) A.    HTTP URL B.    Sun RPC C.    TCP D.    UDP E.    HTTPS URL Answer: AB QUESTION 87 Which statement describes the QoS behavior between P and PE routers of an MPLS provider network for an L3VPN service? A.    The PE function honors DSCP markings set by the CE. B.    The customer and provider must agree on DSCP classification and traffic priorities. C.    Classification of customer traffic is handled by the P router. D.    The PE function cannot map DSCP markings to MPLS EXP bits. Answer: B QUESTION 88 Which method is used to mark traffic matched by class-map MY_CLASS as Expedited Forwarding? A.    set ip dscp cs7 B.    set dscp cs7 C.    set dscp 46 D.    set dscp 45 Answer: C QUESTION 89 Which method maps MPLS EXP bit 5 to COS 5 on Cisco IOS XE? A.    configure terminal class-map match exp match mpls experimental topmost 5 exit policy-map EXP2Cos class exp set cos 5 exit class class-default random-detec interface fastethernet 0/0 service-policy output EXP2Cos B.    configure terminal class-map match exp match mpls experimental topmost 5 exit policy-map EXP2Cos class exp set cos 5 exit class class-default random-detec interface fastethernet 0/0 service-policy input EXP2Cos C.    configure terminal class-map match exp match mpls cos 5 exit policy-map EXP2Cos class exp set mpls experimental topmost 5 exit class class-default random-detec interface fastethernet 0/0 service-policy output EXP2Cos D.    configure terminal class-map match exp match mpls cos 5 exit policy-map EXP2Cos class exp set mpls experimental topmost 5 exit class class-default random-detec interface fastethernet 0/0 service-policy output EXP2Cos exit commit E.    configure terminal ip access-list 101 permit ip any any mpls experimental 5 class-map match exp match access-group 101 exit policy-map EXP2Cos class exp set cos 5 exit class class-default random-detec interface fastethernet 0/0 service-policy output EXP2Cos exit Answer: A QUESTION 90 The Cisco IOS and IOS XE qos pre-classify command allows which kind of packet classification on IP packets that are encapsulated with GRE and IPsec? A.    allows for packets to be classified based on the ToS byte values before packet encryption B.    allows for packets to be classified based on the ToS byte values after packet encryption C.    allows for packets to be classified based on the packet payload before packet encryption D.    allows for packets to be classified based on the packet payload after packet encryption E.    allows for packets to be classified based on the packet header parameters other than the ToS byte values after packet encryption Answer: E QUESTION 91 An engineer has been tasked to configure a guaranteed 2 Mbps of bandwidth for outgoing FTP traffic on interface FastEthernet 1/1/1 on Cisco IOS XR. Which method accomplishes this configuration? A.    configure terminal class-map FTP_CLASS match protocol ftp exit policy-map POLICY_1 class FTP_CLASS bandwidth 2000 exit exit interface FastEthernet 1/1/1 service-policy output POLICY_1 end commit B.    configure terminal class-map FTP_CLASS match protocol ftp exit policy-map POLICY_1 class FTP_CLASS bandwidth 2000000 exit exit interface FastEthernet 1/1/1 service-policy input POLICY_1 end commit C.    configure terminal access-list 100 permit ip any any eq 21 policy-map POLICY_1 match ip access-list 100 bandwidth 2000 exit exit interface FastEthernet 1/1/1 service-policy output POLICY_1 end commit D.    configure terminal policy-map POLICY_1 class FTP_CLASS match protocol ftp bandwidth 2000000 exit exit interface FastEthernet 1/1/1 service-policy input POLICY_1 end commit Answer: A QUESTION 92 An engineer has been tasked to configure a guaranteed 10 Mbps priority queue for traffic matched by class-map VOICE_CLASS on Cisco IOS XR. Which policy must be applied for outgoing traffic on interface FastEthernet 0/0/1? A.    configure policy-map VOICE_POLICY class VOICE_CLASS police rate 10000 exceed-action drop exit priority level 1 exit exit interface FastEthernet 0/0/1 service-policy output VOICE_POLICY commit B.    configure policy-map VOICE_POLICY class VOICE_CLASS priority percent 10 exit exit interface FastEthernet 0/0/1 service-policy output VOICE_POLICY commit C.    configure policy-map VOICE_POLICY class VOICE_CLASS police rate 1000 exceed-action drop exit priority level 1 exit exit interface FastEthernet 0/0/1 service-policy output VOICE_POLICY commit D.    configure policy-map VOICE_POLICY class VOICE_CLASS police rate 10 Mbps exceed-action shape exit priority level 1 exit exit interface FastEthernet 0/0/1 service-policy output VOICE_POLICY commit Answer: A QUESTION 93 When implementing CBWFQ, where should Weighted Random Early Detection configuration be applied? A.    route-map B.    policy-map C.    class-map D.    service-policy Answer: B QUESTION 94 Which QoS technique can be used to protect customer traffic from being dropped by traffic rate limiting performed by the service provider? A.    LLQ B.    policing C.    fair-queue D.    shaping Answer: D QUESTION 95 Refer to the exhibit. Based on the raw format of an MPLS header captured by a traffic analyzer, what is the value of the MPLS EXP field? A.    1 B.    255 C.    5 D.    29 Answer: C QUESTION 96 Which two characteristics describe the difference between MPLS QoS pipe and short-pipe models? (Choose two) A.    Short-pipe mode does not need MPLS usage, but pipe mode does. B.    In short-pipe mode, the egress LSR uses the tunneled PHB marking, but in pipe mode, the egress LSR uses the LSP PHB marking. C.    Pipe mode does guarantee that the tunneled packet marking remains unchanged, but short- pipe does not. D.    In short-pipe mode, the egress LSR uses the LSP PHB marking, but in pipe mode, the egress LSR uses the tunneled PHB marking. E.    Short-pipe mode can be implemented on MPLS networks regardless of the MPLS PHP mechanism usage. Answer: BE QUESTION 97 An engineer must automatically copy the IP Prec/DiffServ PHB marking to the EXP bits of the imposed MPLS label on the ingress PE, as well as the MPLS EXP bits to the IP Prec/DiffServ of the egress PE. Which MPLS QoS model is suitable for this requirement? A.    pipe model B.    short-pipe model C.    uniform model D.    uniform pipe model Answer: C QUESTION 98 A service provider recently defined new SLA services that provide QoS transparency over MPLS DiffServ-TE services. Which two tunneling modes provide QoS transparency? (Choose two.) A.    short pipe mode B.    uniform mode C.    pipe mode with an explicit NULL LSP D.    pipe mode without a explicit NULL LSP E.    best effort mode Answer: AC QUESTION 99 Refer to the exhibit. Which configuration error prevents this traffic-shaping policy from working? A.    The WAN interface is starting to drop packets because no queuing mechanism is implemented. B.    Traffic-shaping policies are applied only in the outbound direction. C.    The class_A configuration shape peak is used to maximize the serial interface performances. D.    The service-policy command is applied only on logical or channeled interfaces. Answer: B QUESTION 100 Refer to the exhibit. From which table was the information obtained? A.    FIB B.    CEF C.    LIB D.    LFIB Answer: D Now we are one step ahead in providing updated real exam dumps for 642-887. We provide 100% 642-887 exam passing guarantee as we will provide you same questions of 642-887 exam with their answers. Our Cisco 642-887 new questions are verified by experts. 642-887 new questions on Google Drive: https://drive.google.com/open?id=0B3Syig5i8gpDSi1td1BOZlJEWWs 2016 Cisco 642-887 exam dumps (All 137 Q&As) from Lead2pass: http://www.lead2pass.com/642-887.html [100% Exam Pass Guaranteed] --------------------------------------------------- Images: http://examgod.com/l2pimage/a6d146ccd3d5_E799/951_thumb.jpg http://examgod.com/l2pimage/a6d146ccd3d5_E799/991_thumb.jpg http://examgod.com/l2pimage/a6d146ccd3d5_E799/1001_thumb.jpg --------------------------------------------------- --------------------------------------------------- Post date: 2016-12-06 08:51:54 Post date GMT: 2016-12-06 08:51:54 Post modified date: 2016-12-06 08:51:54 Post modified date GMT: 2016-12-06 08:51:54 ____________________________________________________________________________________________ Export of Post and Page as text file has been powered by [ Universal Post Manager ] plugin from www.gconverters.com