CISCO SEMESTER 4: MODULE 7

Identify the factors that contribute to congestion on an Ethernet LAN. (Choose three.)
	improper placement of enterprise level servers
	addition of hosts to a physical segment
	replacement of hubs with workgroup switches
	increasing use of bandwidth intensive network applications
	creation of new collision domains without first adding network hosts
	migration to full-duplex Ethernet within the LAN
Which of the following are examples of TCP/IP application layer protocols? (Choose three.)
	a terminal emulation protocol that supports remote console connections with various network devices
	a protocol created by IBM that makes it easier for mainframes to connect to remote offices
	a protocol responsible for transporting electronic mail on TCP/IP networks and the Internet
	a protocol that controls the rate at which data is sent to another computer
	a protocol that exchanges network management information between a network device and a management console
Which of the following eliminates switching loops?
	hold-down timers
	poison reverse
	spanning tree protocol
	time to live
	split horizon protocol
The show cdp neighbors command is a very useful network troubleshooting tool. Using the output in the graphic, select the statements that are true. (Choose two.)
	CDP operates at the network layer of the OSI model.
	The output of this command displays information about directly connected Cisco devices only.
	The switch is attached to the SanJose1 FastEthernet0/21 interface.
	SanJose1 is running CDP version 12.0.
	SanJose1 has two fully operational, cdp-enabled Cisco switches directly connected to it.
	SanJose2 is a 2600 series router running several routed protocols
A network administrator can ping the Denver router, but gets a 'Password Required but None Set' message when trying to connect remotely via Telnet. Which command sequence must be applied to the Denver router to allow remote access?
	Router(config)# line console 0 Router(config-line)# login Router(config-line)# password cisco
	Router(config)# line vty 0 4 Router(config-line)# login Router(config-line)# password cisco
	Router(config)# line virtual terminal Router(config-line)# enable login Router(config-line)# password cisco
	Router(config)# line vty 0 4 Router(config-line)# enable secret Router(config-line)# password cisco
	Router(config)# enable secret cisco
	Router(config)# enable cisco
Which of the following is associated with link-state routing protocols?
	low processor overhead
	poison reverse
	routing loops
	split horizon
	shortest-path first calculations
	Øverst på formularen A router does not load its configuration after a power failure. After running the show startup-configuration command, the adminstrator finds that the original configuration is intact. What is the cause of this problem? The configuration register is set for 0x2100. The configuration register is set for 0x2101. The configuration register is set for 0x2102. The configuration register is set for 0x2142. Boot system commands are not configured. Flash memory is empty causing the router to bypass the configuration in NVRAM Nederst på formularen
Which commands are used to verify the content and placement of access control lists? (Choose three.)
	show ip interface
	show ip route
	show processes
	show running-config
	show cdp neighbor
	show access-lists
Which of the following are required when creating a standard access control list? (Choose two.)
	destination address and wildcard mask
	source address and wildcard mask
	subnet mask and wildcard mask
	access list number between 100 and 199 or 2000 and 2699
	access list number between 1 and 99 or 1300 to 1999
Which of the following are keywords that can be used in an access control list to replace a dotted decimal wildcard mask? (Choose two.)
	most
	host
	all
	any
	some
	sum
Refer to the diagram. All ports on Switch A are in the Sales VLAN and all ports on Switch B are in the Accounting VLAN. How many broadcast domains and how many collision domains are shown? (Choose two).
	3 collision domains
	3 broadcast domains
	5 broadcast domains
	9 collision domains
	10 collision domains
	13 collision domains
Refer to the graphic. Using the most efficient IP addressing scheme and VLSM, which address can be configured on one of the serial interfaces?
	192.168.16.63/27
	192.168.16.158/27
	192.168.16.192/27
	192.168.16.113/30
	192.168.16.145/30
	192.168.16.193/30
What is the purpose of the Spanning Tree Protocol (STP)?
	prevents Layer 2 loops
	prevents routing loops on a router
	creates smaller collision domains
	creates smaller broadcast domains
	allows Cisco devices to exchange routing table updates
What is the purpose of a loopback address when using the OSPF routing protocol?
	activates the OSPF neighboring process
	ensures a persistent router ID for the OSPF process
	provides a backdoor for connectivity during the convergence process
	streamlines and speeds up the convergence process
Which statement is true regarding states of the IEEE 802.1d Spanning Tree Protocol?
	Ports are manually configured to be in the forwarding state.
	Ports listen and learn before going into the forwarding state.
	Ports must be blocked before they can be placed in the disabled state.
	It takes 15 seconds for a port to go from blocking to forwarding
Which sequence of commands is used to configure a loopback address on a router?
	Router1(config)# interface loopback 1 Router1(config-if)# ip address 192.168.1.1
	Router1(config)# interface serial 0/0 Router1(config-if)# loopback 1 Router1(config-if)# ip address 192.168.1.1
	Router1(config)# interface serial 0/0 Router1(config-if)# loopback 1 Router1(config-if)# ip address 192.168.1.1 255.255.255.0
	Router1(config)# interface loopback 1 Router1(config-if)# ip address 192.168.1.1 255.255.255.255
Which routing protocols are classful and do not support VLSM? (Choose two.)
	EIGRP
	OSPF
	RIP v1
	RIP v2
	IGRP
Refer to the graphic. Two switches are connected together through a trunk port. SW2 displays the message shown. Which of the following will solve the duplex mismatch?
	SW1(config)# interface fastethernet 0/1 SW1(config-if)# duplex full
	SW1(config)# interface fastethernet 0/1 SW1(config-if)# full-duplex
	SW2(config)# interface fastethernet 0/1 SW2(config-if)# duplex full
	SW2(config)# interface fastethernet 0/1 SW2(config-if)# full-duplex
Refer to the graphic. Two routers have been configured to use EIGRP. Packets are not being forwarded between the two routers. What could be the problem?
	EIGRP does not support VLSM.
	The routers were not configured to monitor neighbor adjacency changes.
	The default bandwidth was used on the routers.
	An incorrect IP address was configured on a router interface.
According to the the provided router output, which of the following statements is true regarding PPP operation?
	Only the link-establishment phase completed successfully.
	Only the network-layer phase completed successfully.
	Neither the link-establishment phase nor the the network-layer phase completed successfully.
	Both the link-establishment and network-layer phase completed successfully
Frame Relay is configured over a point-to-point connection between two routers. The output of the show frame-relay pvc command indicates that the status of this PVC is inactive. Which of the following devices could be the source of the problem? (Choose two.)
	local router
	local Frame Relay switch
	remote router
	remote Frame Relay switch
R3 has the following configuration: R3# show running-config --some output text omitted-- interface serial0/0 bandwidth 128 ip address 192.168.11.2 255.255.255.0 encapsulation frame-relay frame-relay map ip 192.168.11.2 30 broadcast After the command R3# debug frame-relay packet is executed, a ping is issued from R3 to R1 but is unsuccessful. Based on the output of the debug command shown in the graphic and the router configuration, what might be problem?
	No clock rate assigned.
	There is an incorrect DLCI number in the map statement.
	An incorrect IP address exists in the map statement.
	The encapsulation command is missing the broadcast keyword
Which statements are true regarding the Frame Relay LMI? (Choose three.)
	The LMI provides a virtual circuit (VC) status mechanism.
	The LMI type must always be manually configured.
	The available LMI types are NI1, DMS100 and 5ESS.
	The LMI types supported by Cisco routers are CISCO and IETF.
	The LMI type configured on the router must match the one used on the Frame Relay switch.
	The LMI uses reserved DLCIs to exchange messages between the DTE and DCE
Which statement describes the process that occurs in Network Address Translation (NAT) overloading?
	Multiple private IP addresses are mapped to one public IP address.
	The number of usable addresses assigned to a company is divided into smaller manageable groups.
	A pool of IP addresses are mapped to one or more MAC addresses.
	The router acts as a DHCP server and assigns multiple public IP addresses for each private IP address configured
Which two statements are true about the committed information rate on a Frame Relay link? (Choose two.)
	The sum of the CIRs for all PVCs must be less than the port speed.
	The sum of the CIRs for all PVCs must equal the port speed.
	The sum of the CIRs for all PVCs can be greater than the port speed.
	The DE bit will be set on frames that are transmitted in excess of the CIR.
	Frames that are transmitted at greater than the CIR will be discarded at the source.
	It is impossible to transmit frames at a rate in excess of the CIR
Which of the following commands would be used to troubleshoot the processing of call control functions such as call setup, signaling, and termination?
	show interface bri0/0
	show isdn active
	debug isdn q921
	debug isdn q931
	debug ppp negotiation
	debug ppp authentication
Which of the following statements are true regarding PPP? (Choose three.)
	PPP can use synchronous and asynchronous physical media.
	PPP can only be used between two Cisco devices.
	PPP carries packets from several network layer protocols in LCPs.
	PPP uses LCPs to establish, configure, and test the data link connection.
	PPP uses LCPs to agree on format options such as authentication, compression, and error detection
A network administrator is evaluating authentication protocols for a PPP link. Which of the following reasons might lead to the selection of CHAP over PAP as the authentication protocol? (Choose three.)
	establishes identities with a two-way handshake
	uses a three-way authentication periodically during the session to reconfirm identities
	control by the remote host of the frequency and timing of login events
	transmits login information in encrypted format
	uses an unpredictable variable challenge value to prevent playback attacks
	makes authorized network administrator intervention a requirement to establish each session
Why are static routes often used with ISDN DDR?
	They are more stable than dynamic routing protocols.
	They are more accurate than dynamic routing protocols because they are put in by a network administrator.
	They are easier to modify when a faster technology is installed.
	They prevent the unnecessary activation of the link
Assuming that four bits have been borrowed to make subnets, identify the subnet network addresses. (Choose three.)
	192.168.14.8
	192.168.14.16
	192.168.14.24
	192.168.14.32
	192.168.14.148
	192.168.14.208
A switch can be configured for three different forwarding modes based on how much of a frame is received before the forwarding process begins. Each of the numbered arrows in the accompanying graphic signifies the point in a frame where a particular forwarding mode will begin. Which one of the following groups reflects the sequence of forwarding modes signified by the numbered arrows?
	1) fast forward 2) fragment free 3) store-and-forward
	1) store-and-forward 2) fragment free 3) fast forward
	1) fragment free 2) fast forward 3) store-and-forward
	1) fast forward 2) store-and-forward 3) fragment free
Which of the following commands will display a communication message on a router before the router prompt is shown?
	banner motd * Property of TLC. UNAUTHORIZED USERS WILL BE PROSECUTED TO THE FULL EXTENT OF THE LAW. *
	message Property of TLC. UNAUTHORIZED USERS WILL BE PROSECUTED TO THE FULL EXTENT OF THE LAW.
	banner * Property of TLC. UNAUTHORIZED USERS WILL BE PROSECUTED TO THE FULL EXTENT OF THE LAW. *
	hostname (Property of TLC. UNAUTHORIZED USERS WILL BE PROSECUTED TO THE FULL EXTENT OF THE LAW.)
	Øverst på formularen A router needs to be added to OSPF area 0. Which commands should be used to enable OSPF on the router? (Choose two.) RouterA(config)# router ospf RouterA(config)# router ospf 1 RouterA(config-router)# network 192.168.2.0 0.0.0.255 0 RouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0 RouterA(config-router)# network 192.168.2.0 255.255.255.0 0 Nederst på formularen
Refer to the graphic. Which of the following commands will configure router A for OSPF?
	router ospf 1 network 192.168.10.0
	router ospf 1 network 192.168.10.64 0.0.0.63 area 0 network 192.168.10.192 0.0.0.3 area 0
	router ospf 1 network 192.168.10.64 255.255.255.192 network 192.168.10.192 255.255.255.252
	router ospf 1 network 192.168.10.0 area 0
Which of the following protocols would exchange information between routers to share network addresses and their metrics?
	TCP
	RIP
	CSMA/CD
	Ethernet
Which ISDN device can be directly connected to a two-wire local loop in a North American city?
	a router with a serial interface
	a router with an S/T interface
	a router with a U interface
	an ISDN terminal adapter
The output of the show ip interfaces brief command indicates that Serial0 is up but the line protocol is down. Which of the following are possible causes for the line protocol being in the down state? (Choose two.)
	The clock rate is not set on the DTE.
	An incorrect default gateway is set on the router.
	A network is missing from the routing protocol configuration.
	The encapsulation on the Serial0 interface is incorrect.
	Keepalives are not being sent by the remote device
Which of the following is a characteristics of TCP? (Choose two.)
	data transport reliability
	best path determination
	establishing, maintaining, and terminating virtual circuits
	encapsulation of packets in a data frame with source and destination MAC addresses
	best-effort datagram delivery
Which statement is true regarding the command ip route 192.168.7.24 255.255.255.248 192.168.7.9? (Choose two.)
	A packet destined for host 192.168.7.30 will be forwarded to address 192.168.7.9.
	192.168.7.9 is the destination network for this route.
	192.168.7.24 is the next-hop router in this command.
	This command is issued from the interface configuration mode.
	This command is used to define a static route
Which of the following application layer protocols use TCP? (Choose three.)
	SMTP
	FTP
	SNMP
	HTTP
	TFTP
	DHCP
	Øverst på formularen Which terms refer to Frame Relay congestion management mechanisms? (Choose three.) BECN DLCI DE FECN LMI Inverse ARP Nederst på formularen
Which of the following router commands will verify that a path exists to a destination network?
	Router# show ip interfaces brief
	Router# show ip route
	Router# show cdp neighbors
	Router# show running-config
	Router# show protocols
When EIGRP is configured on a router, which table of DUAL information is used to calculate the best route to each destination router?
	router table
	topology table
	DUAL table
	CAM table
	ARP table
Refer to the graphic. Routers A and B have EIGRP configured and automatic summarization has been disabled on both routers. Which of the following commands is used on router A to summarize the attached routes, and to which interface is this command applied? (Choose two)
	ip summary-address eigrp 1 192.168.10.64 255.255.255.192
	ip area-range eigrp 1 192.168.10.80 255.255.255.224
	summary-address 192.168.10.80 0.0.0.31
	ip summary-address eigrp 1 192.168.10.64 0.0.0.63
	serial interface on router A
	serial interface on router B
A router with two LAN interfaces, two WAN interfaces, and two loopback interfaces configured is operating with OSPF as its routing protocol. What is used by the OSPF process to assign the router ID?
	the IP address of the interface configured with priority 0
	the OSPF area ID configured on the interface with the highest IP address
	the loopback with the highest IP address configured
	the highest IP address on the LAN interfaces
	the highest IP address configured on the WAN interfaces
Given the IP address and subnet mask of 172.16.134.56 255.255.255.224, on which subnetwork does this address reside?
	172.0.0.0
	172.16.134.0
	172.16.134.32
	172.16.134.48
	172.16.134.47
	172.16.134.63
Which commands show when the last IGRP routing update was received? (Choose two.)
	Router# show ip protocols
	Router# show version
	Router# show interfaces
	Router# show ip updates
	Router# show ip route
When using access control lists to filter traffic, which of the following is used to track multiple sessions occurring between hosts?
	IP addresses
	subnet masks
	port numbers
	routed protocols
	routing protocols
	interfaces
Given the IP address and subnet mask of 172.16.134.64 255.255.255.224, which of the following would describe this address?
	This is a useable host address.
	This is a broadcast address.
	This is a network address.
	This is not a valid address
The company network shown in the drawing has to be subnetted. The company has leased the Class C IP address of 200.1.2.0. Which of the following network addresses and masks would be appropriate for one of the subnetworks?
	200.1.2.96 255.255.255.192
	200.1.2.160 255.255.255.224
	200.1.2.80 255.255.255.224
	200.1.2.32 255.255.255.240

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