單項(xiàng)選擇題

Refer to the exhibit. When applying this hierarchical policy map on the on the tunnel1 interface, you measure high jitter for traffic going through class 1234. What is the most likely cause of this jitter?（）

A.The configuration of a hierarchical policy map on a tunnel interface is not supported.
B.Class 5555 and class 5554 are both taking up 100% of the bandwidth，leaving nothing for class 1234.
C.The burst size for the traffic shaping is wrongly configured to 15000；this would require an interface capable of sending at 150Mb/s.
D.The burst size for the traffic shaping has been wrongly configured；it should be set as low as possible.
E.The burst size for the traffic shaping has been wrongly configured；it should be set as high as possible.


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2.單項(xiàng)選擇題You are the network administrator of an enterprise with a main site and multiple remote sites. Your network carries both VOIP and data traffic. You agree with your service provider to classify VOIP and data traffic according to the different service RFCs. How can your data and VOIP traffic be marked？（）

A.data marked with DSCP AF21，VOIP marked with DSCP EF
B.data marked with DSCP AF51，VOIP marked with DSCP EF
C.data marked with the DE-bit，VOIP marked with the CLP-bit
D.data marked with DSCP EF，VOIP marked with DSCP AF31
E.data marked with IP precedence 5 VOIP marked with DSCP EF

3.單項(xiàng)選擇題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 links
B.configure the scheduler allocate 3000 1000 command to allow the QoS code to have enough CPU cycles
C.enable class-based traffic shaping on the VoIP traffic class
D.enable Layer 2 fragmentation and interleaving on the links
E.enable Frame Relay on the links and send voice and data on different Frame Relay PVCs

5.單項(xiàng)選擇題Which of these is a valid differentiated services PHB？ （）

A.Guaranteed PHB
B.Class-Selector PHB
C.Reserved Forwarding PHB
D.Discard Eligible PHB
E.Priority PHB

最新試題

Refer to the exhibit.The network administrator is in acampus building distant from Building B.WANRouter is hosting a newly installed WAN link on interface S0/0.The new link is not functioning and the administrator needs to determine if the correct cable has been attached to the S0/0 interface.How can the administrator accurately verify the correct cable type on S0/0 in the most efficient manner?（）

題型：?jiǎn)雾?xiàng)選擇題

R1 will choose which path to reach 10.1.0.0？

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問(wèn)一個(gè)怎么樣的屬性，能讓路由不通告給任何的peer？

題型：?jiǎn)柎痤}

Which of the following are key characteristics of PPP?（）

題型：多項(xiàng)選擇題

The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.00.0.0.255 any What is the effect of this access list configuration?（）

題型：?jiǎn)雾?xiàng)選擇題

Which of the following describes the roles of devices in a WAN?（）

題型：多項(xiàng)選擇題

Refer to the exhibit.Which statement describes DLCI 17?（）

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What is the three main step of using the QoS feature with MQC command line interface？

題型：?jiǎn)柎痤}

When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?（）

題型：?jiǎn)雾?xiàng)選擇題

如何實(shí)現(xiàn)擁塞避免？

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