問(wèn)答題

問(wèn)如果BGP同步功能打開(kāi)172.2.0.0/24的條目能否出現(xiàn)在路由器C上？


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1.多項(xiàng)選擇題

Refer to the exhibit. As a network administrator, you have configured a dual-rate, dual-bucket policer in accordance with RFC 2698 on the serial interface of you router, connecting to your provider. The SLA with your provider states that you should only send AF31 (limited to 150 kb/s), AF32 (limited to 50 kb/s)and AF33 (best effort). Your service provider claims you are not conforming to the SLA. Which two things are wrong with this configuration?（）

A.The configuration of a service policy on half-duplex Ethernet interfaces is not supported.
B.The class class-default sub-command of the policy-map limit command should be set to the DSCP default.
C.The violate action is wrong.
D.This policer configuration is not implementing RFC 2698 dual-bucket， dual-rate.
E.The policer is configured in the wrong class.

6.多項(xiàng)選擇題The network administrator is trying to add Switch1 to the network， but the 802.1Q trunk is not coming up. Switch1 was previously tested in the laboratory and its trunk configuration worked fine. What are three possible causes of this problem？（）

A.The trunking configuration mode on Switch1 is set to Off.
B.The trunking configuration mode on the other end is set to On.
C.The trunking configuration mode on the other end is set to Desirable.
D.Cisco Discovery Protocol is not running on the other end.
E.There is a VTP domain name mismatch.
F.Switch1 does not support 802.1Q.

7.單項(xiàng)選擇題

Refer to the exhibit. When applying this policy map on the tunnel1 interface，you see packet loss for the TCP class starting at around 100000 b/s，instead of the configured 150000 b/s. What is the most likely？（）

A.The violate-action command should not be configured.
B.The current configuration of the load-interval command on the tunnel interface is preventing proper policing calculations.
C.The burst size is too low.
D.Policing on tunnel interfaces is not supported.
E.The CIR keyword is missing in the policer.

8.單項(xiàng)選擇題You have done a partial migration from 802.1D STP to 802.1w STP. Which of the following is true？（）

A.802.1D and 802.1w interoperate only when the 802.1D STP domain supports rapid convergence.
B.Ports leading to 802.1D devices will run in compatibility mode， while the rest of the ports will run in 802.1w mode.
C.This is an invalid configuration and a partial migration cannot be done.
D.The bridge timers will be set to match the 802.1D devices.
E.A secondary root bridge will always be populated within the 802.1D domain.
F.If the root bridge is selected within the 802.1D domain， the whole STP domain will run in 802.1D compatibility mode.
G.In partially migrated 802.1w networks， it is recommended to keep the STP diameter below 4.

10.單項(xiàng)選擇題You are about to migrate a customer network to use a VSS. Which of these statements is true about a VSS？（）

A.The VSS switch must be the root bridge for all VLANs and is automatically designated.
B.The VSS switch is defined in RFC 4318 as a managed object.
C.The PAgP+ or LACP protocols are used to maintain the operational state of the VSS devices.
D.A VSS interoperates with a virtual port channel.
E.The 802.1Q or ISL protocols are used to maintain the operational state of the VSS devices.
F.A VSS increases the size of the spanning-tree domain.