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CCNA v4 - E4 - Module 3 (100%)

1. Which best describes the benefit of using Frame Relay as opposed to a leased line or ISDN service?   Customers only pay for the local loop and the bandwidth they purchase from the network provider. 2. Which statement about Frame Relay subinterfaces is correct?    Point-to-point subinterfaces act like leased lines and eliminate split-horizon routing issues. 3. What best describes the use of a data-link connection identifier (DLCI)?   locally significant address used to identify a virtual circuit 4. What is created between two DTEs in a Frame Relay network?   virtual circuit 5. Which two items allow the router to map data link layer addresses to network layer addresses in a Frame Relay network? (Choose two.)    Inverse ARP    LMI status messages 6. Refer to the exhibit. What can be known about the configuration of router R1 from the output?    The command encapsulation frame-relay ietf has been used on the Serial 0/0/0 interface. 7. Refer to the exhibit. Which two outcomes occur from

CCNA v4 - E4 - Module 2 (100%)

1. Refer to the exhibit. What can be concluded about the function of the Serial 0/0/0 interface on the router after the commands are entered?    The serial link will be closed if the number of received packets at the destination node falls below 90 percent of the packets that are sent. 2. Refer to the exhibit. While troubleshooting a serial interface, a technician enters the command  show interface serial 0/0/0 . If the interface is in DCE mode, what two problems are likely to cause the indicated problem? (Choose two.)    The remote CSU or DSU has failed.    A timing problem has occurred on the cable. 3. Refer to the exhibit. What statement is true regarding the output shown?    The PAP passwords did not match, so the routers are trying CHAP authentication. 4. Why are serial connections preferred over parallel connections for long transmission lengths?    Parallel connections are subject to clock skew and to crosstalk between wires. 5. Which two statements are true about time-division

CCNA Exploration 1 - Module 2 Exam Answers Version 4.0 100%

1. Which two layers of the OSI model have the same functions as the TCP/IP model Network Access Layer? (Choose two.) • Network • Transport • Physical • Data Link • Session 2. What is a primary function of the trailer information added by the data link layer encapsulation? • supports error detection • ensures ordered arrival of data • provides delivery to correct destination • identifies the devices on the local network • assists intermediary devices with processing and path selection 3. During the encapsulation process, what occurs at the data link layer? • No address is added. • The logical address is added. • The physical address is added. • The process port number is added. 4. What device is considered an intermediary device? • file server • IP phone • laptop • printer • switch 5.Which layer encapsulates the segment into packets? • physical • data link • network • transport 6. Which statements correctly identify the role of intermediary devices in the network? (Choose three.) • dete

CCNA4 FINAL 100/100

1. Refer to the exhibit. A network administrator is trying to configure a router to use SDM. After this configuration shown in the exhibit is applied, the SDM interface of the router is still not accessible. What is the cause of the problem? *The username and password are not configured correctly. The authentication method is not configured correctly. The HTTP timeout policy is not configured correctly. The vtys are not configured correctly. 2. Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing? The PVC to R1 must be point-to-point. LMI types must match on each end of a PVC. The frame relay PVCs cannot be established between Cisco and non-Cisco routers. *The IETF parameter is missing from the frame-relay map ip 10.

CCNA 4 - Final Exam Answers

1 Which of the following describes the roles of devices in a WAN? (Choose three.) *** A CSU/DSU terminates a digital local loop. A modem terminates a digital local loop. A CSU/DSU terminates an analog local loop. *** A modem terminates an analog local loop. *** A router is commonly considered a DTE device. A router is commonly considered a DCE device. www.p4s-ccna.blogspot.com 2 What value in the address field of a Frame Relay header identifies the destination of the frame? CIR DE *** DLCI ISDN FRAD PVC 3 The serial PPP link between the Left and Right routers is configured as shown in the diagram. Which configuration issue explains why the link is unable to establish a PPP session? The IP addresses must be on different subnets. *** The usernames are misconfigured. The passwords must be different for the CHAP authentication. The clock rate must be 56000. The clock rate is configured on the wrong end of the link. Interface serial 0/0 on Left must connect to interface serial 0/1 on Right.

CCNA 4 - Final Exam (A)

1. A network administrator is asked to design a system to allow simultaneous access to the Internet for 250 users. The ISP for this network can only supply five public IPs. What can be used to accomplish this task? • routable translation • dynamic translation • static translation • port address translation 2. The LAN attached to the Ethernet interface of the Raleigh router shown in the graphic is addressed with private IP addresses. If one public IP is assigned to the company, which commands could be used in a configuration that allows all devices with private IPs in this network to access the Internet? (Choose two.) • ip nat inside source list 1 interface serial0 overload • ip nat outside source list 1 interface serial0 overload • ip nat inside serial0 • ip nat inside source list 1 pool Raleigh overload • ip nat inside Raleigh overload • ip inside nat source list 1 interface serial0 Raleigh 3. The command output shown in the graphic was taken from a Cisco 806 broadband router. Which k

CCNA 4 - Final Exam (B)

1. 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 • migration to full-duplex Ethernet within the LAN 2. 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 3. Which of the following eliminates switching loops? • hold-down timers • poison reverse •