Author:
adamwahal (adamwahal@yahoo.com)
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Date Posted: 10:59:53 02/08/08 Fri
>>>>please send me ccna industry exam
>>> exam please to this email:
>>>adamwahal@yahoo.com
>>Posted: Tue Aug 29, 2006 11:27 am Post subject: Re:
>>
>>
>>------------------------------------------------------
>-
>>-------------------------
>>
>>ANSwer of ur Question
>>
>>Aiman
>>aaiman@banglacafe.com
>>
>>
>>================
>>1 What is the term for the cabling that connects the
>>customer premises equipment to the CO switch?
>>
>>demarc
>>*local loop
>>final mile
>>DTE
>>trunk line
>>
>>
>>2 A network administrator wants to reconfigure a
>>router. Which of the following will clear the
>>running-configuration in preparation for the
>>reconfiguration?
>>
>>erase running-config and then reload
>>erase running-config
>>reload
>>no running-config and then reload
>>*erase startup-config and then reload
>>delete running-config
>>
>>
>>3 A ping 192.1.1.20 command is issued on workstation A
>>to determine if workstation B can be reached. What
>>events will occur if this command is successful?
>>(Choose two.)
>>
>>The router will block the ping request message.
>>The router will reply to the echo request with a proxy
>>ping response.
>>Workstation A will send a UDP ping request message to
>>workstation B.
>>Workstation B will send a UDP ping reply message to
>>workstation A.
>>*Workstation A will send an ICMP echo request message
>>to workstation B.
>>*Workstation B will send an ICMP echo reply message to
>>workstation A.
>>
>>
>>4 How is spanning-tree path cost determined by
>>default?
>>
>>total hop count
>>*sum of the costs based on bandwidth
>>dynamically determined based on load
>>individual link cost based on latency
>>
>>
>>5 Which of the following statements describes the
>>operation of routing with EIGRP? (Choose three.)
>>
>>*As new neighbors are discovered, entries are placed
>>in a neighbor table.
>>If the feasible successor has a higher advertised cost
>>than the current successor route, then it becomes the
>>primary route.
>>*If hello packets are not received within the hold
>>time, DUAL must recalculate the topology.
>>*The reported distance is the distance to a
>>destination as advertised by a neighbor.
>>Routes learned through IGRP are identified as internal
>>routes.
>>EIGRP builds one routing table that contains routes
>>for all configured routed protocols.
>>
>>
>>6 What are the two basic functions that a router uses
>>to relay packets?
>>
>>filtering and switching
>>path determination and filtering
>>*path determination and switching
>>traffic analysis and filtering
>>
>>
>>7 A partial configuration of a Catalyst 1900 switch is
>>shown in the graphic. Why do the following commands
>>fail to delete VLAN1 and VLAN2? (Choose two.)
>>
>>no vlan 1
>>no vlan 2
>>
>>VLAN 1 is not configured on the switch.
>>*VLAN 1 is the default VLAN and cannot be removed.
>>The network administrator is using the wrong command.
>>*The switch is configured in VTP client mode.
>>Ports are still assigned to VLAN 1 and VLAN 2 and the
>>VLANs cannot be deleted until those assignments are
>>removed.
>>
>>
>>8 How many host addresses may be assigned on each
>>subnetwork when using the 130.68.0.0 network address
>>with a subnet mask of 255.255.248.0?
>>
>>30
>>256
>>*2046
>>2048
>>4094
>>4096
>>
>>
>>9 What is another term for latency?
>>
>>backoff algorithm
>>hold-down timer
>>*propagation delay
>>redundancy
>>
>>
>>10 What are the two authentication options supported
>>by PPP?
>>
>>PAP and clear text
>>*PAP and CHAP
>>CHAP and clear text
>>PPP does not support authentication
>>
>>
>>11 Which statement best describes the difference
>>between exterior routing protocols and interior
>>routing protocols?
>>
>>Exterior routing protocols are used for communications
>>within a single autonomous system, and interior
>>routing protocols are used for communications between
>>autonomous systems.
>>Interior routing protocols are used between neighbor
>>routers, and exterior routing protocols are used
>>between peer routers.
>>Interior routing protocols are used by mid size
>>companies, and exterior routing protocols are used by
>>large organizations.
>>*Interior routing protocols are used for
>>communications within a single autonomous system, and
>>exterior routing protocols are used for communications
>>between autonomous systems.
>>
>>
>>12 Which of the following is a non-ISDN compatible
>>device that requires a terminal adapter to connect to
>>an ISDN network?
>>
>>NT1
>>NT2
>>TA1
>>TA2
>>TE1
>>*TE2
>>
>>
>>13 Which device imposes boundaries on broadcast
>>traffic?
>>
>>bridge
>>repeater
>>*router
>>transceiver
>>
>>
>>14
>>Refer to exhibit. Given the topology shown in the
>>exhibit, what three commands are needed to configure
>>EIGRP on the Paris router? (Choose three.)
>>
>>*Paris(config)# router eigrp 100
>>Paris(config)# router eigrp
>>Paris(config-router)# network 192.168.6.0
>>Paris(config-router)# network 192.168.7.0
>>Paris(config-router)# network 192.168.8.0
>>Paris(config-router)# network 192.168.9.0
>>
>>
>>15 Which ISDN channel is used for call setup?
>>
>>B
>>*D
>>X
>>SS-7
>>PRI
>>BRI
>>
>>
>>16
>>Host A in the graphic has received its DHCP
>>configuration from R1. Host A is unable to reach the
>>Internet. What could cause this problem?
>>
>>The DNS server is not on the same LAN as Host A.
>>The ip helper-address command must be configured on
>>the Ethernet interface.
>>*Host A did not receive the correct gateway address.
>>The DHCP service has not been enabled on interface
>e0.
>>The router IP address has been excluded from the DHCP
>>pool.
>>The subnet mask in the network command is incorrect.
>>
>>
>>17 Which utility can be used to verify connectivity
>>through all seven layers of the OSI model?
>>
>>netstat
>>ping
>>*Telnet
>>traceroute
>>
>>
>>18 Which OSI model layer is responsible for regulating
>>the flow of information from source to destination,
>>reliably and accurately?
>>
>>application
>>presentation
>>session
>>*transport
>>network
>>
>>
>>19 Which of the following represents a group of
>>routers under a common administration and is required
>>when configuring routing protocols such as EIGRP?
>>
>>control group
>>*autonomous system
>>corporate system
>>Domain Name System
>>local-area network
>>wide-area network
>>
>>
>>20 How is RIP configured on a router?
>>
>>RIP is configured globally and then assigned an IP
>>address and subnet mask.
>>RIP is configured globally and then applied to each
>>interface that will participate in the RIP routing
>>process.
>>RIP is configured individually on each interface that
>>will participate in the RIP routing process.
>>*RIP is enabled globally and then networks are
>>associated with the RIP routing process.
>>
>>
>>21 What are the advantages of OSPF in comparison with
>>RIP v2? (Choose two.)
>>
>>OSPF provides support for Classless Interdomain
>>Routing but RIP v2 does not.
>>*OSPF may result in faster convergence, due to
>>triggered updates.
>>OSPF's built-in features make it easy to design,
>>implement, and troubleshoot.
>>*OSPF routers build a complete view of the network,
>>reducing the potential for routing loops.
>>OSPF sends periodic link state advertisements to keep
>>the link active.
>>OSPF routers have lower memory and processor
>>requirements.
>>
>>
>>22 Which protocol of the TCP/IP model internet layer
>>provides connectionless, best-effort-delivery of
>>datagrams?
>>
>>ARP
>>ICMP
>>*IP
>>RARP
>>TCP
>>DNS
>>
>>
>>23 Which of the following is an alternative to a
>>dedicated WAN link?
>>
>>X.25
>>ISDN
>>*T1
>>DS3
>>
>>
>>24
>>The internetwork in the diagram is assigned a Class B
>>network address of 130.68.0.0. The network cannot use
>>subnet zero but will use a single network mask for the
>>internetwork. What subnet mask should be assigned to
>>ensure the maximum number of host addresses are
>>available for use on each subnetwork?
>>
>>255.255.224.0
>>255.255.240.0
>>255.255.248.0
>>255.255.252.0
>>255.255.255.224
>>255.255.255.240
>>
>>
>>25
>>A packet destined for 10.188.12.12 is received by a
>>router with the configuration shown in the graphic.
>>The routing table displays the following lines:
>>
>>10.0.0.0/24 is subnetted, 3 subnets
>>R 10.5.5.0 [120/1] via 10.20.20.2, 00:00:18,
>Serial0/0
>>C 10.20.20.0 is directly connected, Serial0/0
>>C 10.10.10.0 is directly connected, FastEthernet0/0
>>
>>What will happen?
>>
>>The packet will be forwarded to the next hop.
>>The router will forward the packet out all ports.
>>*The packet will be dropped.
>>The router will forward the packet out all ports
>>except the receiving port.
>>
>>
>>26 How is an access list implemented in a router?
>>
>>Enter the access list statements globally and apply
>>the list globally.
>>*Enter the access list statements globally and apply
>>the list to a specific interface.
>>Enter the access list statements on a specific
>>interface and apply the list globally.
>>Enter the access list statements on a specific
>>interface and apply the list to that same interface.
>>
>>
>>27 What are the primary functions of a Layer 2
>>Ethernet switch? (Choose three.)
>>
>>*filters traffic between LAN segments
>>*achieves greater bandwidth per user
>>prevents hosts from sending broadcasts
>>*increases the number of broadcast domains through
>>VLANs
>>decreases the number of collision domains through
>>VLANs
>>
>>
>>28 Which of the following describes the CIR in a Frame
>>Relay network?
>>
>>*guaranteed data rate that the service provider
>>commits to providing
>>maximum data burst rate that the switch can handle
>>number of simultaneous virtual circuits available from
>>a service provider
>>number of simultaneous DLCIs that can be established
>>across the cloud
>>
>>
>>29 Which statements reflect the process of common LAN
>>protocols accessing the media? (Choose three.)
>>
>>*Ethernet is a non-deterministic protocol that allows
>>the first node that accesses the medium to transmit
>>its data.
>>*Token Ring is a deterministic protocol that allows
>>only one node within the ring a turn to transmit data
>>before passing control to the next node.
>>Token Ring is a non-deterministic protocol that uses a
>>first-come, first-serve approach for nodes to seize
>>the token and transmit data.
>>FDDI networks use a deterministic approach to assure
>>that each node has fair access to the medium.
>>*Ethernet and Token Ring networks avoid collisions by
>>allowing only one node to transmit at a time.
>>Ethernet is a deterministic protocol that uses CSMA/CD
>>to assure that each node takes turns to access the
>>medium.
>>
>>
>>30 What is the purpose of DLCIs in Frame Relay?
>>
>>They determine the Frame Relay encapsulation type.
>>*They identify the logical circuit between a local
>>router and a Frame Relay WAN switch.
>>They represent the keepalives used to maintain the PVC
>>in an active state.
>>They represent the physical address of the router
>>attached to a Frame Relay network.
>>
>>
>>31 An administrator has an older 1900 switch located
>>on the edge of the network. What can the network
>>administrator do to ensure that it does not become the
>>root bridge of the spanning-tree network?
>>
>>decrease the BPDU hello timer update on the 1900
>>assign the highest IP address to the switch that
>>should be the root
>>assign the lowest IP address to new root bridge
>>*assign the lowest priority to the switch that should
>>be the root
>>assign the highest priority to the new root bridge
>>decrease the BID on the 1900 switch
>>
>>
>>32 What command is used to verify that a Frame Relay
>>link is up and operational?
>>
>>Router# show line
>>Router# show version
>>*Router# show interface
>>Router# show frame-relay
>>Router# show frame-relay status
>>
>>
>>33 Which of the following are true regarding bridges
>>and switches? (Choose two.)
>>
>>Bridges are faster than switches because they have
>>fewer ports.
>>*A switch is a multiport bridge.
>>*Bridges and switches learn MAC addresses by examining
>>the source MAC address of each frame received.
>>A bridge will forward a broadcast but a switch will
>>not.
>>Bridges and switches increase the size of a collision
>>domain.
>>
>>
>>34 Which of the following does CHAP authentication use
>>to increase security on a PPP link? (Choose three.)
>>
>>periodic verification of identity while the link is
>>established
>>*secure recording of playback attacks
>>transmission of the CHAP password in plain text
>>*the use of a unique and random challenge value
>>the use of a two-way handshake of CHAP exchanges
>>*identity verification at the startup of a link
>>
>>
>>35 When a user generates information to be sent on a
>>network, in what order does data encapsulation occur?
>>
>>data, frame, segment, packet, bits
>>data, packet, frame, segment, bits
>>data, packet, segment, frame, bits
>>*data, segment, packet, frame, bits
>>
>>
>>36 Which of the following are characteristics of
>>RIPv2? (Choose two.)
>>
>>requires classful addressing for configured
>interfaces
>>*forwards routing updates using multicasts
>>forwards routing updates using broadcasts
>>operates as a hybrid routing protocol
>>*supports variable-length subnet masking
>>
>>
>>37 Which command will verify that a router is
>>configured with RIPv2 and that the hold-down timer and
>>administrative distance are set to the default
>values?
>>
>>show ip route
>>show interface brief
>>*show ip protocols
>>show interface
>>
>>
>>38
>>The network in the graphic is using EIGRP with the
>>metrics shown. Router A has a route to network
>>210.67.130.0 through Router C, with a feasible
>>distance of three. What will happen if the direct link
>>between A and C becomes unavailable? (Choose two.)
>>
>>DUAL will immediately promote the feasible successor
>>route through Router B to successor route status.
>>The route to Network C on Router A will be placed in
>>Active status.
>>The route to Network C on Router A will be placed in
>>Passive status.
>>Router A will send query packets to all neighbor
>>routers.
>>Router A will mark the link as down until regularly
>>scheduled update packets are received.
>>
>>
>>39 What operations can be executed from the Router>
>>prompt? (Choose two.)
>>
>>*enter privileged mode with the enable command
>>modify passwords
>>modify the router name with the hostname command
>>*view basic router status
>>view passwords
>>view the running-configuration with the show
>>running-config command
>>
>>
>>40 What is the reference point for a connection
>>between a TA and a non-ISDN-compatible device?
>>
>>*R
>>S
>>T
>>U
>>
>>
>>41 Which item is a commonly used metric?
>>
>>ARP
>>*Hop Count
>>Acknowledgment Number
>>Time
>>
>>
>>42 Which ISDN channels are used for voice, video, and
>>data?
>>
>>A channels
>>*B channels
>>E channels
>>D channels
>>Q channels
>>E channels
>>
>>
>>43 A static route needs to be configured to network
>>192.17.10.0/24. This route should have an
>>administrative distance of 180. Which command will
>>configure this route if the IP address of the next hop
>>interface is 10.15.0.1?
>>
>>Router(config)# ip route 192.17.10.1 255.255.255.0
>>10.15.0.0 180
>>*Router(config)# ip route 192.17.10.0 255.255.255.0
>>10.15.0.1 180
>>Router(config)# ip route 10.15.0.1 192.17.10.0
>>255.255.255.0 180
>>Router (config)# ip static-route 192.17.10.0
>>255.255.255.255 10.15.0.1 180
>>Router (config)# ip default-route 192.17.10.0
>>255.255.255.255 10.15.0.1 180
>>
>>
>>44 Which statements are true regarding OSPF DR and BDR
>>elections? (Choose three.)
>>
>>*The command ip ospf prioritypriority number is used
>>to set the priority value that determines the DR.
>>The default priority value for a router connected to a
>>multiaccess network is 0.
>>The router with the highest MAC address is elected as
>>the DR when the default priority values are used.
>>The loopback interface must be configured on the DR.
>>*The BDR is selected from remaining routers and uses
>>the same criteria applied in the DR election.
>>*There are no DRs or BDRs on point-to-point links.
>>
>>
>>45 Which packet-switched WAN technologies are
>>characterized by the use of Permanent Virtual Circuits
>>(PVCs)?
>>
>>Frame Relay and ISDN
>>*Frame Relay and X.25
>>ISDN and X.25
>>ISDN only
>>
>>
>>46 Which statement describes the store and forward
>>transmission mode of an Ethernet switch?
>>
>>It is also referred to as a hybrid mode or as error
>>sensing mode.
>>It requires the switch to read the first 64 bytes of
>>an Ethernet frame and then begins to forward the
>data.
>>It decreases the latency of the transmission but has
>>very little error detection.
>>*It increases latency with large frames, but error
>>detection is high.
>>
>>
>>47 Which configuration parameters can a host receive
>>from a DHCP server? (Choose three.)
>>
>>MAC address
>>outside global address
>>*DNS server address
>>DHCP helper address
>>*default gateway address
>>*IP address/subnet mask
>>
>>
>>48 Which layer of the OSI model can provide
>>connection-oriented and reliable data transfer between
>>two hosts?
>>
>>application
>>presentation
>>session
>>*transport
>>
>>
>>49 Which utility shows the route a packet takes to
>>reach its destination?
>>
>>netstat
>>ping
>>Telnet
>>*traceroute
>>
>>
>>50 Which command displays the active configuration of
>>a router?
>>
>>Router# show flash
>>Router# show configuration
>>*Router# show running-config
>>Router# show startup-config
>>
>>
>>51 In an IPv4 environment, what information is used by
>>the router to forward data packets from one interface
>>of a router to another?
>>
>>*destination network address
>>source network address
>>source MAC address
>>well known port destination address
>>
>>
>>52
>>In an effort to minimize traffic, an administrator
>>decided to keep web traffic from causing the ISDN link
>>to come up by denying WWW traffic to the 192.168.20.5
>>remote server. Two minutes after making changes to the
>>configuration as shown in the graphic, the
>>administrator notices that web traffic is still
>>passing over the link. What is the most likely cause
>>of the problem?
>>
>>The dialer-group has not been applied to outbound
>>traffic.
>>The access-list is incorrectly configured.
>>Broadcasts are creating "interesting" traffic and
>>keeping the link active.
>>The command ip access-group 128 out is missing from
>>the bri0/0 interface.
>>
>>
>>53 Which layer of the OSI model establishes, manages,
>>and terminates sessions between applications?
>>
>>Layer 7
>>Layer 6
>>*Layer 5
>>Layer 4
>>Layer 3
>>Layer 2
>>
>>
>>54 When using distance-vector routing protocols in a
>>frame relay environment with multiple DLCIs on a
>>single physical router interface, split-horizon issues
>>must be resolved. According to Cisco best practices,
>>what should be configured to manage these issues?
>>
>>a single network address
>>multiple LMIs
>>*subinterfaces
>>multiple IP addresses on the same subnet
>>
>>
>>55 Which automatic process is started first whenever
>>power is applied to a Cisco router?
>>
>>empties contents of NVRAM
>>looks for the configuration file
>>*performs a POST
>>starts the operating system
>>
>>
>>56 What is the length of a MAC address?
>>
>>12 bits
>>24 bits
>>38 bits
>>*48 bits
>>
>>
>>57 Identify the correct pairing of protocols and their
>>classifications.
>>
>>Routed - IP, RIP
>>Routed - RIP, OSPF
>>Routing - IPX, RIP
>>*Routing - OSPF, RIP
>>
>>
>>58 Which protocols or applications allow a network
>>administrator to monitor a network? (Choose three.)
>>
>>FTP
>>*SNMP
>>*RMON
>>*syslog
>>DHCP
>>SMTP
>>
>>
>>59 Which type of encapsulation is recommended to be
>>used to connect two routers from different vendors
>>through a dedicated point-to-point connection?
>>
>>CIR
>>FCS
>>ANSI
>>*PPP
>>HDLC
>>
>>
>>60 Which command will display statistics for all
>>interfaces configured on a router?
>>
>>list interfaces
>>*show interfaces
>>show processes
>>show statistics
>>
>>
>>61 What is the correct order of the layers of the OSI
>>reference model, starting at the lowest layer and
>>working up the model?
>>
>>data link, physical, transport, network, presentation,
>>session, application
>>physical, data link, network, session, transport,
>>presentation, application
>>physical, data link, network, transport, presentation,
>>session, application
>>*physical, data link, network, transport, session,
>>presentation, application
>>application, session, presentation, transport, data
>>link, network, physical
>>
>>
>>62 What is the purpose of the IOS enable secret
>>command?
>>
>>to set password protection on incoming Telnet
>sessions
>>*to set password protection on the console terminal
>>to allow a user access to User mode
>>to allow a user to enter a password that will be
>>encrypted
>>
>>
>>63 How are VLANs configured?
>>
>>by moving switches to different router ports
>>by changing switchports for each host on the segment
>>by physically moving equipment to a different network
>>*through software
>>through hardware
>>automatically with a plug and play module
>>
>>
>>64
>>The administrator of the network shown in the graphic
>>would like to use VLSM to subnet the company's Class C
>>address. Which subnet masks should be used on the LANs
>>and serial links to waste the fewest host addresses?
>>(Choose three.)
>>
>>255.255.255.0
>>255.255.255.192
>>255.255.255.224
>>255.255.255.240
>>255.255.255.248
>>*255.255.255.252
>>
>>
>>65 Which fields are common to the TCP and the UDP
>>segments? (Choose two.)
>>
>>*source address
>>sequence number
>>acknowledgement number
>>options
>>checksum
>>*destination port
>>
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