CCNA Routing and Switching_2.docx

1.Which three statements about networks are accurate? (Choose three.)Networks are used to transmit data in various environments, including homes, small businesses, and large enterprises.A main office can have hundreds or even thousands of people who depend on network access to do their jobs.A network is a connected collection of devices that can communicate with each other.A main office usually has one large network to connect users.The purpose of a network is to create a means to provide workers with access to all information and components that are accessible via the network.Remote locations cannot connect to a main office through a network.2.Which two statements about the purpose of the TCP/IP model are accurate? (Choose two.)The TCP/IP model defines the network functions that occur at each layer.The TCP/IP model facilitates an understanding of how information travels throughout a network.The TCP/IP model ensures reliable data delivery through its layered approach.The TCP/IP model defines seven layers.3.Which two statements about switches are accurate? (Choose two.)They operate only at the internet layer of the TCP/IP model.They forward, filter, or flood frames based on MAC table entries.A hub is a newer and better version of a switch.Their three major functions are forwarding, filtering, and flooding.1.Which configuration mode would you use to configure a particular port on a switch?user EXEC modeglobal configuration modeinterface configuration modecontroller configuration mode2.Which feature is required for multiple VLANs to span multiple switches?multilayer switchrouterbridgetrunk3.Which information does the show vlan command display?redundancy informationwhich ports are trunksnames of the VLANs and ports that are assigned to the VLANsSTP information1.How many bits are in an IPv4 address?481632641282.What was the primary issue that was solved by creating IPv6?running out of address spacecomplicated IPv4 headersecurity and mobilityrichness in the transition tools3.Which three IPv4 header fields were present in the IPv4 header but not in the IPv6 header? (Choose three)IHLtype of serviceheader checksumflagsflow label1.Which command syntax correctly configures a default route?ip default-route 172.16.0.1ip default-route 0.0.0.0 0.0.0.0 172.16.0.1ip route 0.0.0.0 0.0.0.0 172.16.0.1ip route 172.16.0.12.Which command is used to configure the static IPv6 default route?ipv6 route :/0interface next_hopipv6 route defaultinterface next_hopipv6 route 0.0.0.0/0interface next_hopip route 0.0.0.0/0interface next_hop3.Which command correctly assigns a subinterface to VLAN 50 using 802.1Q trunking?Router(config)#encapsulation 50 dot1QRouter(config)#encapsulation trunk dot1Q 50Router(config-if)#encapsulation dot1Q 50Router(config-if)#encapsulation 802.1Q vlan 501.Which two statements correctly identify ACLs? (Choose two.)have an implicit deny all at the bottom of each ACLare consulted in a bottom-to-top orderuse wildcard maskscan be used only for filtering2.Which two statements correctly describe NAT? (Choose two.)The total number of internal addresses that NAT can translate into one external address is 128.PAT uses unique source port numbers on the inside global IPv4 address to distinguish between translations.Static, dynamic, and automatic are three NAT types.Private users can access the Internet by sharing one or more public IP addresses.3.Which command would you use to verify the number of available addresses in a DHCP pool?show ip dhcp available addressesshow ip dhcp conflictshow ip dhcp bindingshow ip dhcp pool1.Which three types of access can be protected with a password? (Choose three.)console accessvty accessuser-level accessprivileged EXEC-level accessconfiguration mode access2.Which Cisco IOS feature can be used to control access to the vty ports?shutdownport securityACLfirewall3.What does a Cisco router do with a packet when the packet matches an outbound ACL permit statement on the interface?discards the packetreturns the packet to its originatorsends the packet to the output bufferholds the packet for further processing1.Which Cisco IOS command is the most useful for troubleshooting media issues?show controllershow troublesshow countersshow interface2.Issuing a show interface FastEthernet 0/1 command resulted in output that stated FastEthernet0/1is up, line protocol is down. What does this message mean?The link is fully functional.The interface has been manually disabled (theshutdowncommand has been issued) in the active configuration.There could be an encapsulation type mismatch, the interface on the other end could be error-disabled, or there could be a hardware problem.A cable is not attached, or some other interface problem exists. For example, in a back-to-back connection, the other end of the connection may be administratively down.3.You are troubleshooting link problems on a specific Ethernet interface and suspect that you have a duplex mismatch. When you check the cur