QUESTION 81 You work as network administrator at Cisco Highway Ltd. Cisco Highway has three different sites with one router at each site. The routers are named Cisco Highway1, Cisco Highway2, and Cisco Highway3. An assistant technician has configured all the routers, but no connectivity exists between the routers. You task is to identify all error(s) and make the necessary adjustment(s) to establish network connectivity. The routers have been configured with the following configuration:
- They are named Cisco Highway1, Cisco Highway2, and Cisco Highway3.
- RIP is the routing protocol
- Clocking is provided on the serial 0 interface.
- The password on each router is "Cisco Highway"
- The subnet mask on all interfaces is the default subnet mask.
- The IP addresses are listed in the chart below. Cisco Highway1 E0 192.168.3.1 S0 192.168.5.1 Cisco Highway2 E0 192.168.8.1 S0 192.168.11.1 S1 192.168.5.2 Cisco Highway3 E0 192.168.13.2 S1 192.168.11.2
To configure the router click on a host icon that is connected to the router by a serial console cable. Answer: Explanation: Click on Host 2: Router Cisco Highway1: Cisco Highway1> enable Password: Cisco Highway Cisco Highway1 # config terminal Cisco Highway1 (config) # interface ethernet 0 Cisco Highway1 (config-if) # ip address 192.168.3.1 255.255.255.0 Cisco Highway1 (config-if) # no shutdown Cisco Highway1 (config-if) # exit Cisco Highway1 (config) # interface serial 0 Cisco Highway1 (config-if) # ip address 192.168.5.1 255.255.255.0 Cisco Highway1 (config-if) # clock rate 64000 Cisco Highway1 (config-if) # no shutdown Cisco Highway1 (config-if) # exit Cisco Highway1 (config) # router rip Cisco Highway1 (config-router) # network 192.168.3.0 Cisco Highway1 (config-router) # network 192.168.5.0 Cisco Highway1 (config-router) # Ctrl-Z Cisco Highway1 # copy running-config startup-config Click on Host 4 Router Cisco Highway2: Cisco Highway2> enable Password: Cisco Highway Cisco Highway2 # config t Cisco Highway2 (config) # interface ethernet 0 Cisco Highway2 (config-if) # ip address 192.168.8.1 255.255.255.0 Cisco Highway2 (config-if) # no shutdown Cisco Highway2 (config-if) # exit Cisco Highway2 (config) # interface serial 0 Cisco Highway2 (config-if) # ip address 192.168.11.1 255.255.255.0 Cisco Highway2 (config-if) # clock rate 64000 Cisco Highway2 (config-if) # no shutdown Cisco Highway2 (config-if) # exit Cisco Highway2 (config) # interface serial 1 Cisco Highway2 (config-if) # ip address 192.168.5.2 255.255.255.0 Cisco Highway2 (config-if) # no shutdown Cisco Highway2 (config-if) # exit Cisco Highway2 (config) # router rip Cisco Highway2 (config-router) # network 192.168.8.0 Cisco Highway2 (config-router) # network 192.168.11.0 Cisco Highway2 (config-router) # network 192.168.5.0 Cisco Highway2 (config-router) # Ctrl-Z Cisco Highway2 # copy running-config startup-config Router Cisco Highway3: Click on Host F Cisco Highway3> enable Password: Cisco Highway Cisco Highway3 # config t Cisco Highway3 (config) # interface ethernet 0 Cisco Highway3 (config-if) # ip address 192.168.13.2 255.255.255.0 Cisco Highway3 (config-if) # no shutdown Cisco Highway3 (config-if) # exit Cisco Highway3 (config) # interface serial 1 Cisco Highway3 (config-if) # ip address 192.168.11.2 255.255.255.0 Cisco Highway3 (config-if) # clock rate 64000 Cisco Highway3 (config-if) # no shutdown Cisco Highway3 (config-if) # exit Cisco Highway3 (config) # router rip Cisco Highway3 (config-router) # network 192.168.13.0 Cisco Highway3 (config-router) # network 192.168.11.0 Cisco Highway3 (config-router) # Ctrl-Z Cisco Highway3 # copy running-config startup-config
QUESTION 82 What will be the calculated OSPF cost of an OSPF interface that has been configured with the bandwidth 64 command?
A. 1
B. 10
C. 64
D. 1562
E. 64000
F. 128000 Answer: D Explanation: The question states that OSPF interface has been configured with the bandwidth 64 command. The CCNA ICND written by Wendell Odom, CCIE #1624, page 209, it is stated that IOS defaults to use the formula 108/bandwidth, where bandwidth is the interface bandwidth, in kbps.
So doing the math you have: 100 000 000 / 64000 = 1562.5
QUESTION 83 You are a network technician at Cisco Highway, Inc. A newly appointed trainee wants to know what the purpose of DLCIs in Frame Relay is. What would your response be?
A. They determine the encapsulation type employed by the Frame Relay.
B. They identify the logical circuit between a local router and a Frame Relay WAN switch.
C. They represent the physical address of the router.
D. They represent the keepalives in the maintenance of PVC. Answer: B Explanation: Routers use the data-link connection identifier (DLCI) as the Frame Replay address, which identifies the VC over which the frame should travel. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) page 377
QUESTION 84 Which of the following statements is true regarding the command sequence illustrated below? (Choose all that apply.) Cisco HighwayA(config)# interface loopback 0 Cisco HighwayA(config-if)# ip address 192.168.16.24 255.255.255.255
A. It creates a virtual, software only, interface.
B. It provides a way to test the convergence of OSPF routing updates.
C. The mask of 255.255.255.255 is called a host mask.
D. It uses a wildcard mask of 255.255.255.255.
E. It ensures that an interface is always active for OSPF processes.
F. These commands can only be issued to configure serial interfaces. Answer: A,C,E Explanation:
- A : When the OSPF process starts, the Cisco IOS uses the highest local Ip addresses its OSPF router ID. If a loopback interface is configured, that address is used regardless of its value.
- C : A 32-bit mask is sometimes called a host mask, because it specifies a single host and not a network or subnetwork. A wildcard mask of value 255.255.255.255 will not check any of the bit values in the IP address.
- E : A loopback -derived router ID ensures stability because that interface is immune to link failure.
QUESTION 85 Which IEEE standards apply when a company wants to implement 1000mbps Ethernet? (Select two options)?
A. 802.3u
B. 802.3ae
C. 802.3ab
D. 802.3e
E. 802.3z
F. 802.3i Answer: C, E
IEEE 802.3z 1000BASE-SX. The 1000BaseT standard was released in June 1999, defined by IEEE 802.3ab. Incorrect Answer: On June 17, 2002 the IEEE 802.3ae specification for 10 Gigabit Ethernet was approved as an IEEE standard by the IEEE Standards Association (IEEE-SA) Standards Board. IEEE 802.3u 100BASE-TX
QUESTION 86 Which of the statements mentioned below describes the OSPF routing protocol? (Choose all that apply.)
A. It confines network instability to a single area of network.
B. It increases the routing overhead of the network
C. It supports VLSM
D. It routes between Autonomous Systems.
E. It allows extensive control of routing update Answer: A, C, E
QUESTION 87 Which field of frame id used by error detection schemes when checking on errors?
A. MTU
B. PDU
C. FCS
D. Flag
E. MAC
F. BRI Answer: C Explanation: The FCS is used for error checking. Reference: Todd Lammle's 4th edition study guide, Chapter 5 ip routing pages.
QUESTION 88 What are the options for Frame LMI types. (Choose all that apply.)
A. Q.931
B. IEEE
C. Cisco
D. IETF
E. Q933a
F. ANSI Answer: C, E, F
QUESTION 89 Which of the following addresses can be assigned to network hosts when given a subnet mask of 255.255.255.224? (Select three options.)
A. 201.45.116.159
B. 134.178.18.62
C. 192.168.16.91
D. 92.11.178.93
E. 217.63.12. 31
F. 15.234.118.63 Answer: B, C, D Explanation
B: Valid host in subnetwork 1 (134.178.18.32 to 134.178.18.63)
C: Valid host in subnetwork 3 (192.168.16.64 to 192.168.16.95)
D: Valid host in subnetwork 2 ( 92.11.178.64 to 92.11.178.95)
QUESTION 90 Which of the following commands will provide you with information regarding the Layer 3 configuration of directly connected router interfaces?
A. show ip Links
B. show cdp neighbors
C. show cdp neighbors detail
D. show ip clients
E. show ip route Answer: C
