As the network technician at Company， you need to configure DHCP snooping on a new switch.   Which three steps are required？ （）

A . The hello time is 5 seconds. B . The forward delay is 10 seconds. C . The hello time is 2 seconds. D . The forward delay is 15 seconds E . The max_age timer is 15 seconds. F . The hello time is 10 seconds. G . The max_age timer is 20 seconds. H . The forward delay is 20 seconds. I . The max_age timer is 30 seconds.

A . TestKing# show eigrp entries B . TestKing# show protocols C . TestKing# debug eigrp routes D . TestKing# show ip route eigrp E . TestKing# show route eigr

A . TestKingB> telnet B . TestKingB > ping C . TestKingB > trace D . TestKingB > show ip route E . TestKingB > show interface F . TestKingB > show cdp neighbor

A . Disabling HTTPS access to Cisco SDM B . Prohibiting console access to Router C . Preventing any alterations to the router’s running configuration D . Disabling all vulnerable Services on the Router E . Shutting down all the router’s interface

A . 172.22.243.127 B . 172.22.243.191 C . 172.22.243.190 D . 10.16.33.98 E . 10.17.64.34 F . 192.168.1.160

A . Disable post scan B . Use SSH or SSL C . Enable trust levels D . Deny echo replies on all edge router

A . The access layer is the initial point at which traffic enters the network. Traffic is marked （orremarked） at Layers 2 and 3 by the access switch as it enters the network， or is "trusted" that it isentering the network with the appropriate tag B . No traffic marking occurs at the core layer. Layer 2/3 QoS tags are trusted from distributionlayer switches and used to prioritize and queue the traffic as it traverses the core C . Traffic inbound from the access layer to the distribution layer can be trusted or reset dependingupon the ability of the access layer switches. Priority access into the core is provided based onLayer 3 QoS tags D . IP precedence， DSCP， QoS group， IP address， and ingress interface are Layer 2 characteristics that are set by the access layer as it passes traffic to the distribution layer. Thedistribution layer， once it has made a switching decision to the core layer， strips these off E . MAC address， Multiprotocol Label Switching （MPLS）； the ATM cell loss priority （CLP） bit， theFrame Relay discard eligible （DE） bit， and ingress interface are established by the voicesubmodule （distribution layer） as traffic passes to the core layer F . The distribution layer inspects a frame to see if it has exceeded a predefined rate of trafficwithin a certain time frame， which is typically a fixed number internal to the switch. If a frame isdetermined to be in excess of the predefined rate limit， the CoS value can be marked up in a waythat results in the packet being dropped

A . Spanning-tree B . 802.1Q C . VLANs D . PAT E . QoS

A .  Accounting B .  Analog and digital voice C .  Mobility D .  Security E .  Routing and switching F .  VLAN and QoS

A . Click Next B . Click Fix All， then Next C . Click Fix All， then clear CDP check box， then Next， then manually disable CDP on the WAN interface D . Click Fix All， the clear CDP check box， the Next E . Click Fix All， then Clear CDP check box， then Next， then Immediately reboot the router

A .  The Cisco Aironet AP handles real-time portions of the LWAPP protocol， and the WLAN  controller handles those items which are not time sensitive. B .  A Cisco Aironet AP handles the transmission of beacon frames and also handles responses to  probe-request frames from clients. C .  Virtual MAC architecture allows the splitting of the 802.11 protocol between the Cisco Aironet  AP and a LAN switch. D .  A Cisco Aironet solution includes intelligent Cisco Aironet access point （APs） and Cisco  Catalyst switches. E .  In the Cisco Aironet solution， each AP is locally configured by the use of either a web interface  or the command line interface.

A .  LWAPP is a proprietary protocol， and because of its very high overhead it is not widely adopted. B .  Control traffic is encapsulated in UDP packets with a source port of 1024 and a destination port  of 12223. C .  Layer 3 LWAPP is a UDP/IP Frame that requires a Cisco Aironet AP to obtain an IP address  using DHCP. D .  Data traffic is encapsulated in UDP packets with a source port of 1024 and a destination port of  12223. E .  Control traffic is encapsulated in TCP packets with a source port of 1024 and a destination port  of 12223. F .  Data traffic is encapsulated in TCP packets with a source port of 1024 and a destination port of  12223.

A .  Layer 3 addressing and distribution B .  SNMP monitoring services C .  Access point certification and software control D .  Packet encapsulation， fragmentation， and formatting E .  Compression and Layer 3 address mapping F .  User behavior

A . 172.22.243.127 B . 172.22.243.191 C . 172.22.243.190 D . 10.16.33.98 E . 10.17.64.34 F . 192.168.1.160

A . It provides reliable input for verifying network consistency. B . It requires a network audit to support some upgrade decisions. C . It requires a network audit to support any network restructuring. D . It begins with gathering organizational input that may be inaccurate.

A . Router# show protocols B . Router# show version C . Router# show image D . Router# show IOS E . Router# show flash

A .  224.0.0.100 B .  224.0.0.1 C .  224.0.0.102 D .  224.0.0.10 E .  224.0.0.101 F .  None of the other alternatives apply

A . show ip RIP B . show ipv6 ospf C . show ip ospf D . show ip ospf interface E . show ipv6 ospf interface F . show ipv4 ospf G . None of the other alternatives apply

A . A switch in the VTP client mode cannot update its local VLAN database. B . A trunk link must be configured between the switches to forward VTP updates. C . A switch in the VTP server mode can update a switch in the VTP transparent mode. D . A switch in the VTP transparent mode will forward updates that it receives to other switches. E . A switch in the VTP server mode only updates switches in the VTP client mode that have a higher VTP revision number. F . A switch in the VTP server mode will update switches in the VTP client mode regardless of the configured VTP domain membership.

A . 172.22.243.127 B . 172.22.243.191 C . 172.22.243.190 D . 10.16.33.98 E . 10.17.64.34 F . 192.168.1.160

A . ...uses VTP to collect VLAN information that is sent out and then tags itself with the domain  information in order to capture the data. B . ...will generate frames with two 802.1Q headers to cause the switch to forward the frames to a  VLAN that would be inaccessible to the attacker through legitimate means. C . ...uses DTP to negotiate trunking with a switch port and captures all traffic that is allowed on the  trunk. D . ...tags itself with all usable VLANs to capture data that is passed through the switch， regardless  of the VLAN to which the data belongs. E . None of the other alternatives apply

A . Router#copy tftp flash B . Router(config)#restore flash C . Router(config)#repair flash D . Router#copy flash run E . Router>copy start flash F . Router#copy start flash

A . Router Certkiller 2,Gig 0/1 B . Switch Certkiller B,Fast Port 1 to 24 C . Switch Certkiller A,Gig Port 9 D . Router Certkiller 2,Gig 0/0

A. The length of the house B. How many rooms are in the house C. How many users will be using the wireless network D. The building material of the house E. The cost of the house