多項(xiàng)選擇題Which of the following statements are true regarding Layer 3 switches?(Choose all that apply.)()

A.A routed port does not run STP or DTP
B.A routed port is considered to be in a down state if it is not operational at both Layer 1 andLayer 2
C.An SVI is considered to be in a down state if it is not operational at both Layer 1 and Layer 2
D.An SVI is considered to be in a down state only when none of the ports in the correspondingVLAN are active
E.An SVI port does not run 5TP or DTP
F.To create a trunk, an SVI can be logically divided into subinterfaces


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1.多項(xiàng)選擇題You are using AutoQoS Enterprise and realize that the results are not what you expected. Whichof the following are possible reasons for AutoQoS not functioning correctly?(Choose all thatapply.)()

A.The interface you configured for AutoQoS is set to half-duplex
B.AutoQoS was configured on only one end of the link
C.The interface you configured for AutoQoS has no IP address
D.The interface’s bandwidth is not correctly configured
E.CEF is not enabled on the interface
F.You enabled AutoQoS on the interface but forgot to enable globally first

2.多項(xiàng)選擇題Which of the following troubleshooting targets is considered to be a Layer 2 issue?(Choose allthat apply.)()

A.Spanning Tree Protocol
B.Cabling
C.Frame forwarding
D.Packet forwarding
E.EtherChannel
F.Routing protocols

3.多項(xiàng)選擇題Which of the following are considered common elements found in a set of network documents?(Choose all that apply.)()

A.Building schematic
B.IGP community elements
C.Listing of interconnections
D.Physical topology diagram
E.Logical topology diagram
F.Inventory of network equipment

4.單項(xiàng)選擇題A router has been configured with an EIGRP variance of 3. Which of the following statements istrue?()

A.An error will result because a router cannot be configured with an EIGRP variance of 3 becausethe maximum variance number is 2
B.The successor route will end up in the routing table, and so will any route with a metric at mostthree times greater than the value of the successor’s metric
C.EIGRP will only advertise routes that are within three hops of the current router
D.The successor route will end up in the routing table, and so will any route with a metric at leastone third the value of the successor’s metric
E.The best three routes with equal cost paths will end up in the routing table
F.The successor route will be any route with three times the value of the advertised distance

5.單項(xiàng)選擇題Which of the following characteristics applies only to OSPFv3 and not to OSPFv2?()

A.Several processes can exist simultaneously
B.Requires direct connectivity from the backbone area to all other areas
C.Has the same packet types
D.Can support multiple subnets on a single link
E.Uses a hierarchical structure divided into areas
F.Adjacencies formed with neighbors

6.多項(xiàng)選擇題You issue the command show process memory ∣ include BGP and notice that BGP is consuming alarge percentage of the router’s memory. Which of the following steps would result in lowering theamount of memory being consumed by BGP?(Choose all that apply.)()

A.Filter unneeded BGP routes
B.Run BGP on a different platform that already has more memory
C.Upgrade the router memory
D.Increase the BGP update timer
E.Compress the BGP table
F.Use a default route instead of maintaining a full BGP table

7.多項(xiàng)選擇題Which of the following types of attacks does DHCP snooping prevent?(Choose all that apply.)()

A.Attacker sends multiple DHCP requests flooding DHCP server
B.Attacker connects rogue server initiating DHCP requests
C.Attacker connects rogue server replying to DHCP requests
D.Attacker sends DHCP jam signal causing DHCP server to crash
E.Attacker sends gratuitous ARP replies, thereby jamming the DHCP server
F.Attacker sends unsolicited DHCP replies, thereby jamming the DHCP server

9.多項(xiàng)選擇題Which of the following router models will support 1000 tunnels?()

A.2811
B.2801
C.2851
D.2821
E.1841
F.3825

10.單項(xiàng)選擇題Which of the following is not a typical maintenance task within a network maintenance model?()

A.Providing technical customer support
B.Changing configurations
C.Updating software
D.Monitoring network performance
E.Replacing hardware
F.Scheduling backups

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