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QUESTION 50
Refer to the exhibit. Host A has been added to the network. Which type of cable should be used between Switch2 and host A?
A. console cable
B. rollover cable
C. straight-through cable
D. crossover cable
Correct Answer: C
QUESTION 51
What is the effect of using the service password-encryption command?
A. Only the enable password will be encrypted.
B. Only the enable secret password will be encrypted.
C. Only passwords configured after the command has been entered will be encrypted.
D. It will encrypt the secret password and remove the enable secret password from the configuration.
E. It will encrypt all current and future passwords.
Correct Answer: E
QUESTION 52
Which command will set the default gateway to 192.168.12.1 on a Cisco switch?
A. Switch(config)# ip default-network 192.168.12.1
B. Switch(config)# ip route-default 192.168.12.1
C. Switch(config)# ip default-gateway 192.168.12.1
D. Switch(config)# ip route 192.168.12.1 0.0.0.0
Correct Answer: C
QUESTION 53
Refer to the exhibit. What types of cables are recommended to make the connections that are shown?
A. A-straight-through B-straight-through C-rollover D-straight-through E-straight-through
B. A-rollover B-straight-through C-straight-through D-rollover E-crossover
C. A-crossover B-straight-through C-rollover D-straight-through E-straight-through
D. A-crossover
B-straight-through
C-crossover
D-straight-through
E-crossover
E. A-straight-through B-crossover C-rollover D-straight-through E-straight-through
Correct Answer: C
QUESTION 54
From where does a small network get its IP network address?
A. Internet Assigned Numbers Authority (IANA)
B. Internet Architecture Board (IAB)
C. Internet Service Provider (ISP)
D. Internet Domain Name Registry (IDNR)
Correct Answer: C
QUESTION 55
The system LED is amber on a Cisco Catalyst 2950 series switch. What does this indicate?
A. The system is malfunctioning.
B. The system is not powered up.
C. The system is powered up and operational.
D. The system is forwarding traffic.
E. The system is sensing excessive collisions.
Correct Answer: A
QUESTION 56
What are two recommended ways of protecting network device configuration files from outside network security threats? (Choose two.)
A. Allow unrestricted access to the console or VTY ports.
B. Use a firewall to restrict access from the outside to the network devices.
C. Always use Telnet to access the device command line because its data is automatically encrypted.
D. Use SSH or another encrypted and authenticated transport to access device configurations.
E. Prevent the loss of passwords by disabling password encryption.
Correct Answer: BD
QUESTION 57
Which type of attack is characterized by a flood of packets that are requesting a TCP connection to a server?
A. denial of service
B. brute force
C. reconnaissance
D. Trojan horse
Correct Answer: A
QUESTION 58
Refer to the exhibit. Why was this message received?
A. No VTY password has been set.
B. No enable password has been set.
C. No console password has been set.
D. No enable secret password has been set.
E. The login command has not been set on CON 0.
F. The login command has not been set on the VTY ports.
Correct Answer: A
QUESTION 59
Which command is used on a Cisco router to reach the global configuration mode?
A. Router> enable
B. Router# router
C. Router# setup
D. Router# interface
E. Router# configure terminal
Correct Answer: E
QUESTION 60
This graphic shows some common router ports. Which port can be used for a WAN T1 connection?
A. AUI
B. BRI
C. Console
D. Serial 0
Correct Answer: D
QUESTION 61
Refer to the graphic. How many collision domains are shown?
A. one
B. two
C. three
D. four
E. six
F. fourteen
Correct Answer: B
QUESTION 62
Refer to the exhibit. Two buildings on the San Jose campus of a small company must be connected to use Ethernet with a bandwidth of at least 100 Mbps. The company is concerned about possible problems from voltage potential differences between the two buildings. Which media type should be used for the connection?
A. UTP cable
B. STP cable
C. coaxial cable
D. fiber optic cable
Correct Answer: D
QUESTION 63
Refer to the exhibit. A network administrator is troubleshooting a connectivity problem on the serial interfaces. The output from the show interfaces command on both routers shows that the serial interface is up, line protocol is down. Given the partial output for the show running-config in the exhibit, what is the most likely cause of this problem?
A. The serial cable is bad.
B. The MTU is incorrectly configured.
C. The Layer 2 framing is misconfigured.
D. The IP addresses are not in the same subnet.
Correct Answer: C
QUESTION 64
Three access points have been installed and configured to cover a small office.
What term defines the wireless topology?
A. BSS
B. IBSS
C. ESS
D. SSID
Correct Answer: C
QUESTION 65
A single 802.11g access point has been configured and installed in the center of a square office. A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What are three likely causes of this problem? (Choose three.)
A. mismatched TKIP encryption
B. null SSID
C. cordless phones
D. mismatched SSID
E. metal file cabinets
F. antenna type or direction
Correct Answer: CEF
QUESTION 66
A network administrator is having difficulty in establishing a serial link between a Cisco router and a router from another vendor. Both routers are configured for HDLC encapsulation. Which statements are true regarding this configuration? (Choose two.)
A. The Cisco HDLC frame uses a proprietary “Type” field that may not be compatible with equipment of other vendors.
B. HDLC requires a clock rate to be configured on the routers at both ends of the serial link.
C. PPP encapsulation is recommended for serial links between equipment from multiple vendors.
D. Usernames must be configured at both ends of the HDLC serial link
E. The HDLC vendor type must be enabled on the Cisco router.
F. There is a mismatch in the HDLC authentication password configurations.
Correct Answer: AC
QUESTION 67
Refer to the exhibit. What is needed to allow host A to ping host B?
A. a straight-through cable connecting the switches
B. a crossover cable connecting the switches
C. a router connected to the switches with straight-through cables
D. a CSU/DSU connected to the switches with straight-through cables
E. a backbone switch connecting the switches with either fiber optic or straight-through cables
Correct Answer: C
QUESTION 68
Refer to the exhibit. As packets travel from Mary to Robert, which three devices will use the destination MAC address of the packet to determine a forwarding path? (Choose three.)
A. Hub1
B. Switch1
C. Router1
D. Switch2
E. Router2
F. Switch3
Correct Answer: BDF
QUESTION 69
Which of the following protocols uses both TCP and UDP ports?
A. FTP
B. SMTP
C. Telnet
D. DNS
Correct Answer: D
QUESTION 70
Host A needs to communicate with the email server shown in the graphic.
What address will be placed in the destination address field of the frame when it leaves Host A?
A. the MAC address of Host A
B. the MAC address of Switch 1
C. the MAC address of E0 of the router
D. the MAC address of E1 of the router
E. the MAC address of Switch 2
F. the MAC address of the email server
Correct Answer: C
QUESTION 71
Which encryption type does WPA2 use?
A. AES-CCMP
B. PPK via IV
C. PSK
D. TKIP/MIC
Correct Answer: A
QUESTION 72
Refer to the exhibit. After configuring two interfaces on the HQ router, the network administrator notices an error message. What must be done to fix this error?
A. The serial interface must be configured first.
B. The serial interface must use the address 192.168.1.2.
C. The subnet mask of the serial interface should be changed to 255.255.255.0.
D. The subnet mask of the FastEthernet interface should be changed to 255.255.255.240.
E. The address of the FastEthernet interface should be changed to 192.168.1.66.
Correct Answer: D
QUESTION 73
Which IP address is a private address?
A. 12.0.0.1
B. 168.172.19.39
C. 172.20.14.36
D. 172.33.194.30
E. 192.169.42.34
Correct Answer: C
QUESTION 74
A network administrator has subnetted the 172.16.0.0 network using a subnet mask of 255.255.255.192. A duplicate IP address of 172.16.2.120 has accidentally been configured on a workstation in the network. The technician must assign this workstation a new IP address within that same subnetwork. Which address should be assigned to the workstation?
A. 172.16.1.80
B. 172.16.2.80
C. 172.16.1.64
D. 172.16.2.64
E. 172.16.2.127
F. 172.16.2.128
Correct Answer: B
QUESTION 75
Refer to the graphic. Host A is communicating with the server. What will be the source MAC address of the frames received by Host A from the server?
A. the MAC address of router interface e0
B. the MAC address of router interface e1
C. the MAC address of the server network interface
D. the MAC address of host A
Correct Answer: A
QUESTION 76
Refer to the exhibit. The DHCP settings have recently been changed on the DHCP server and the client is no longer able to reach network resources. What should be done to correct this situation?
A. Verify that the DNS server address is correct in the DHCP pool.
B. Ping the default gateway to populate the ARP cache.
C. Use the tracert command on the DHCP client to first determine where the problem is located.
D. Clear all DHCP leases on the router to prevent address conflicts.
E. Issue the ipconfig command with the /release and /renew options in a command window.
Correct Answer: E QUESTION 77
Refer to the exhibit. Switch-1 needs to send data to a host with a MAC address of 00b0.d056.efa4. What will Switch-1 do with this data?
A. Switch-1 will drop the data because it does not have an entry for that MAC address.
B. Switch-1 will flood the data out all of its ports except the port from which the data originated.
C. Switch-1 will send an ARP request out all its ports except the port from which the data originated.
D. Switch-1 will forward the data to its default gateway.
Correct Answer: B
QUESTION 78
Refer to the topology and MAC address table shown in the exhibit. Host A sends a data frame to host D. What will the switch do when it receives the frame from host A?
A. The switch will add the source address and port to the MAC address table and forward the frame to host D.
B. The switch will discard the frame and send an error message back to host A.
C. The switch will flood the frame out of all ports except for port Fa0/3.
D. The switch will add the destination address of the frame to the MAC address table and forward the frame to host D.
Correct Answer: A
QUESTION 79
By which prompt is the global configuration mode on a Cisco router identified?
A. Router>
B. Router#
C. Router(config)#
D. Router(config-if)#
E. Router(config-line)#
F. Router(config-router)#
Correct Answer: C
QUESTION 80
How many simultaneous Telnet sessions does a Cisco router support by default?
A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
Correct Answer: E
QUESTION 81
What does the “Inside Global” address represent in the configuration of NAT?
A. the summarized address for all of the internal subnetted addresses
B. the MAC address of the router used by inside hosts to connect to the Internet
C. a globally unique, private IP address assigned to a host on the inside network
D. a registered address that represents an inside host to an outside network
Correct Answer: D QUESTION 82
Refer to the exhibit. HostA cannot ping HostB. Assuming routing is properly configured, what could be the cause of this problem?
A. HostA is not on the same subnet as its default gateway.
B. The address of SwitchA is a subnet address.
C. The Fa0/0 interface on RouterA is on a subnet that can’t be used.
D. The serial interfaces of the routers are not on the same subnet.
E. The Fa0/0 interface on RouterB is using a broadcast address.
Correct Answer: D
QUESTION 83
Refer to the exhibit. Host A has established a communication session with host B for the first time. What enabled R1 to forward this traffic in the appropriate direction to reach the nework to which host B is attached?
A. DNS
B. DHCP
C. TCP/IP
D. a Layer 4 protocol
E. a routing protocol
F. a default gateway
Correct Answer: E
QUESTION 84
What are two effects on network performance of configuring a switch to store an entire frame before forwarding it to the destination? (Choose two.)
A. increase in switch operating speed
B. increased latency
C. filtering of all frame errors
D. filtering of collision fragments only
E. propagation of corrupted or damaged frames
F. decreased latency
Correct Answer: BC
QUESTION 85
Refer to the exhibit. What could be possible causes for the “Serial0/0 is down” interface status? (Choose two.)
A. A Layer 1 problem exists.
B. The bandwidth is set too low.
C. A protocol mismatch exists.
D. An incorrect cable is being used.
E. There is an incorrect IP address on the Serial 0/0 interface.
Correct Answer: AD
QUESTION 86
Which statements are true regarding ICMP packets? (Choose two.)
A. They acknowledge receipt of TCP segments.
B. They guarantee datagram delivery.
C. They can provide hosts with information about network problems.
D. They are encapsulated within IP datagrams.
E. They are encapsulated within UDP datagrams.
Correct Answer: CD
QUESTION 87
Refer to the exhibit. What value should be displayed in Box 1 of the ipconfig output of host A?
A. 172.18.14.5
B. 172.18.14.6
C. 192.168.1.10
D. 192.168.1.11
E. 192.168.1.250
F. 192.168.1.254
Correct Answer: F
QUESTION 88
Which line from the output of the show ip interface command indicates that there is a Layer 1 problem?
A. Serial0/1 is up, line protocol is up
B. Serial0/1 is up, line protocol is down
C. Serial0/1 is down, line protocol is down
D. Serial0/1 is administratively down, line protocol is down
Correct Answer: C
QUESTION 89
Refer to the exhibit. Which statement describes the operational state of the FastEthernet 0/0 interface?
A. The interface is generating protocol errors.
B. The interface has failed because of a media error.
C. The interface is operational and currently handling traffic.
D. The interface requires a no shutdown command to be issued.
Correct Answer: C
QUESTION 90
What is the purpose of flow control?
A. to ensure data is retransmitted if an acknowledgment is not received
B. to reassemble segments in the correct order at the destination device
C. to provide a means for the receiver to govern the amount of data sent by the sender
D. to regulate the size of each segment
Correct Answer: C
QUESTION 91
Two routers named Atlanta and Brevard are connected by their serial interfaces as shown in the exhibit, but there is no data connectivity between them. The Atlanta router is known to have a correct configuration. Given the partial configurations shown in the exhibit, what is the problem on the Brevard router that is causing the lack of connectivity?
A. A loopback is not set.
B. The IP address is incorrect.
C. The subnet mask is incorrect.
D. The serial line encapsulations are incompatible.
E. The maximum transmission unit (MTU) size is too large.
F. The bandwidth setting is incompatible with the connected interface.
Correct Answer: B
QUESTION 92
Which three statements are true about the operation of a full-duplex Ethernet network? (Choose three.)
A. There are no collisions in full-duplex mode.
B. A dedicated switch port is required for each full-duplex node.
C. Ethernet hub ports are preconfigured for full-duplex mode.
D. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
E. The host network card and the switch port must be capable of operating in full-duplex mode.
Correct Answer: ABE
QUESTION 93
The router console screen is rapidly displaying line after line of output similar to what is shown in the exhibit. The help desk has called to say that users are reporting a slowdown in the network. What will solve this problem while not interrupting network operation?
A. Save the configuration and reboot the router.
B. Press the CTRL+C keys.
C. Enter the no debug all command.
D. Use the show processes command.
E. Enter the terminal monitor command.
Correct Answer: C
QUESTION 94
Refer to the exhibit. For security reasons, information about RTA, including platform and IP addresses, should not be accessible from the Internet. This information should, however, be accessible to devices on the internal networks of RTA. Which command or series of commands will accomplish these objectives?
A. RTA(config)#no cdp run
B. RTA(config)#no cdp enable
C. RTA(config)#interface s0/0 RTA(config-if)#no cdp run
D. RTA(config)#interface s0/0 RTA(config-if)#no cdp enable
Correct Answer: D
QUESTION 95
What is the result of adding this command to a router that is already configured for dynamic routing?
ip route 0.0.0.0 0.0.0.0 192.168.1.2
A. It configures the router as a firewall, blocking all packets from IP address 192.168.1.2.
B. It configures the router to block routing updates from being sent to IP address 192.168.1.2.
C. It configures the router to drop all packets for which the destination network is unknown.
D. It configures the router to send all packets to IP address 192.168.1.2.
E. It configures the router to send all packets to IP address 192.168.1.2 if the packets match no other entry in the routing table.
Correct Answer: E QUESTION 96
Refer to the graphic. A Cisco router and a Catalyst switch are connected as shown. The technician is working on a computer that is connected to the management console of the switch. In order to configure the default gateway for the switch, the technician needs to learn the IP address of the attached router interface. Which IOS command will provide this information in the absence of Layer 3 connectivity?
A. ping router_ip_address
B. ping switch_ip_address
C. show ip rarp
D. show cdp neighbors detail
E. show ip neighbors
F. show dhcp-config
Correct Answer: D
QUESTION 97
Which of the following commands will configure a default route to any destination network not found in the routing table?
A. Router(config)# ip default-route 0.0.0.0 255.255.255.255 s0
B. Router(config)# ip route 0.0.0.0 255.255.255.255 s0
C. Router(config)# ip default-route 0.0.0.0 s0
D. Router(config)# ip route 0.0.0.0 0.0.0.0 s0
E. Router(config)# ip route any any e0
Correct Answer: D
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