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？（）

单项选择题ArequestarrivedonyourMPLS-vpn-bgpgroup.Duetoasecuritybreach，yourcustomerisexperiencingDoSattackscomingfromspecificsubnets（200.0.10.0 24，200.0.12.0 24）.YouhavecheckedallMPLS-EBGProutesbeingadvertisedtoBHKfromotherVPNsitesandfoundfoursubnetslisted：200.0.10.0 24，200.0.11.0 24，200.0.12.0 24，200.0.13.0 24.YouimmediatelyapplyanoutboundACLfilterusingtheappropriateMPLS-EBGPtool：access-list1deny0.0.0.0255.255.254.255access-list1permitanyWhathappenswhenyouapplythisACLontheMPLS-EBGPconnectiontoBHK？（）

A.It blocks all routes.
B.It blocks the routes 200.0.12.0/24，200.0.10.0/24 only.
C.It blocks the routes 200.0.12.0/24，200.0.13.0/24 only.
D.It blocks the routes 200.0.10.0/24，200.0.13.0/24 only.
E.Nothing happens，no routes are blocked.

多项选择题Refer to the exhibit. The Layer 2 network uses VTP to manage its VLAN database. A network designer created all VLANs on the VTP server （switch 1） and it has been advertised through VTP to all other VTP clients （switches 2 through 4）. Due to network growth，a network operator decided to add a new switch between switch 1 and switch 3. The network operator has been instructed to use a refurbished switch and use a VTP client. Which three of these factors should the network operator consider to minimize the impact of adding a new switch？（）

A.Pay special attention to the VTP revision number， because the higher value takes the priority.
B.Configure all VLANs manually on the new switch in order to avoid connectivity issues.
C.A trunk should be established between the new switch and switches 1 and 3 as VTP only runs over trunk links.
D.Set at least the VTP domain name and password to get the new switch synchronized.
E.An ISL trunk should be established between the new switch and switches 1 and 3，because VTP only runs over ISL.
F.Pay special attention to the VTP revision number， because the lower value takes the priority.

多项选择题WhichtwooftheseelementsneedtobeconfiguredpriortoenablingSSH？（）

A.hostname
B.loopback address
C.default gateway
D.domain name
E.SSH peer address

单项选择题Whentroubleshootinganetwork，theoutputofthecommandshowinterfacesindicatesalargenumberofrunts.Whatisarunt？（）

A.the number of packets that are discarded because they exceed the maximum packet size of the medium
B.errors created when the CRC generated by the originating LAN station or far-end device does not match the checksum calculated from the data received.
C.the number of packets that are discarded because they are smaller than the minimum packet size of the medium
D.the number of received packets that were ignored by the interface because the interface hardware ran low on internal buffers
E.the number of times that the interface requested another interface within the router to slow down

单项选择题IfacertificateauthoritytrustpointisnotconfiguredwhenenablingHTTPSandtheremoteHTTPSserverrequiresclientauthentication，connectionstothesecureHTTPclientwillfail.Whichcommandmustbeenabledforcorrectoperation？（）

A.ip http client secure-ciphersuite 3des-ede-cbc-sha
B.ip https max-connections 10
C.ip http timeout-policy idle 30 life 120 requests 100
D.ip http client secure-trustpoint trustpoint-name