单项选择题An expanding company is deploying leased lines between its main site and two remote sites. Thebandwidth 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 oneach interface for the VOIP traffic. Users now complain about bad voice quality although no drops areobserved 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 OoS 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


您可能感兴趣的试卷

你可能感兴趣的试题

1.单项选择题The classic Spanning Tree Protocol (802.1 D 1998) uses which sequence of variables to determine thebest received BPDU?()

A.1) lowest root bridge id,2) lowest sender bridge id,3) lowest port id,4) lowest root path cost
B.1) lowest root path cost,2) lowest root bridge id,3) lowest sender bridge id,4) lowest sender port id
C.1) lowest root bridge id,2) lowest sender bridge id,3) lowest root path cost,4) lowest sender port id
D.1) lowest root bridge id,2) lowest root path cost,3) lowest sender bridge id,4) lowest sender port id

2.单项选择题Which of these best describes the actions taken when a VTP message is received on a switch configuredwith the VTP mode "transparent"?()

A.VTP updates are ignored and forwarded out all ports.
B.VTP updates are ignored and forwarded out trunks only.
C.VTP updates are made to the VLAN database and are forwarded out trunks only.
D.VTP updates are ignored and are not forwarded.

4.多项选择题Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree ProtocolIEEE 802.1 D?()

A.Designated Root Cost
B.bridge ID priority
C.max age
D.bridge ID MAC address
E.Designated Root Priority
F.forward delay

5.单项选择题Spanning Tree Protocol IEEE 802.1 s defines the ability to deploy which of these?()

A.one global STP instance for all VLANs
B.one STP instance for each VLAN
C.one STP instance per set of VLANs
D.one STP instance per set of bridges

6.单项选择题Two routers configured to run BGP have been connected to a firewall, one on the inside interface and one on the outside interface. BGP has been configured so the two routers should peer, including the correctBGP session endpoint addresses and the correct BGP session hop-count limit EBGP multihop. What is agood first test to see if BGP will work across the firewall?()

A.Attempt to TELNET from the router connected to the inside of the firewall to the router connected to theoutside of the firewall. If telnet works, BGP will work, since telnet and BGP both use TCP to transportdata.
B.Ping from the router connected to the inside interface of the firewall to the router connected to theoutside interface of the firewall. If you can ping between them, BGP should work, since BGP uses IP totransport packets.
C.There is no way to make BGP work across a firewall without special configuration, so there is no simpletest that will show you if BGP will work or not, other than trying to start the peering session.
D.There is no way to make BGP work across a firewall.

8.单项选择题What is also called Type 0 authentication in OSPF on Cisco Routers?()

A.MD5
B.There is no Type 0 authentication
C.SHA1
D.Null

10.单项选择题Which of the following is true about the MPLS header and its EXP field size?()

A.The MPLS header is 2 bytes,and the EXP field is 3 bits long.
B.The MPLS header is 1 byte,and the EXP field is 3 bits long.
C.The MPLS header is 4 bytes,and the EXP field is 3 bits long.
D.The MPLS header is 3 bytes,and the EXP field is 3 bits long.

最新试题

When STP UplinkFast is enabled on a switch utilizing the default bridge priority, what will the new bridgepriority be changed to?()

题型:单项选择题

In GLBP,which router will answer on client ARP requests?()

题型:单项选择题

An expanding company is deploying leased lines between its main site and two remote sites. Thebandwidth 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 oneach interface for the VOIP traffic. Users now complain about bad voice quality although no drops areobserved in the low latency queue. What action will likely fix this problem?()

题型:单项选择题

Which two statements are true about RED?()

题型:多项选择题

Which of these statements about penultimate hop popping are true?()

题型:多项选择题

Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree ProtocolIEEE 802.1 D?()

题型:多项选择题

In order to configure two routers as anycast RPs, which of these requirements, af a minimum, must besatisfied?()

题型:单项选择题

Which two statements about SA caching are true?()

题型:多项选择题

Which of the following is true about the MPLS header and its EXP field size?()

题型:单项选择题

Based on the exhibit presented. What will be the objective of this route map when applied to traffic passing through a router?()

题型:单项选择题