Cisco 200-101 Online Practice Questions and Exam Preparation

Cisco 200-101 Online Questions & Answers

• Question 71:

  Refer to the exhibit.

  

  Given the output shown from this Cisco Catalyst 2950, what is the reason that interface FastEthernet 0/10 is not the root port for VLAN 2?

  A. This switch has more than one interface connected to the root network segment in VLAN 2.
  B. This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.
  C. This switch interface has a higher path cost to the root bridge than another in the topology.
  D. This switch has a lower bridge ID for VLAN 2 than the elected designated switch.
  C. This switch interface has a higher path cost to the root bridge than another in the topology.

  ---

  These four parameters are examined in order to make root bridge , root port , designated port. Other switch has lowest Sending Bridge ID or Sending Port ID so vlan 2 is not the root port.

  1.

  A lower Root Bridge ID

  2.

  A lower path cost to the Root

  3.

  A lower Sending Bridge ID

  4.

  A lower Sending Port ID

• Question 72:

  Refer to the exhibit.

  

  The network associate is configuring OSPF on the Core router. All the connections to the branches should be participating in OSPF. The link to the ISP should NOT participate in OSPF and should only be advertised as the default route. What set of commands will properly configure the Core router?

  A. Core(config-router)# default-information originate Core(config-router)# network 10.0.0.0 0.255.255.255 area 0 Core(config-router)# exit Core(config)# ip route 0.0.0.0 0.0.0.0 10.10.2.14
  B. Core(config-router)# default-information originate Core(config-router)# network 10.10.2.13 0.0.0.242 area 0 Core(config-router)# exit Core(config)# ip route 0.0.0.0 0.0.0.0 10.10.2.14
  C. Core(config-router)# default-information originate Core(config-router)# network 10.10.2.16 0.0.0.15 area 0 Core(config-router)# exit Core(config)# ip route 0.0.0.0 0.0.0.0 10.10.2.14
  D. Core(config-router)# default-information originate Core(config-router)# network 10.10.2.32 0.0.0.31 area 0 Core(config-router)# exit Core(config)# ip route 0.0.0.0 0.0.0.0 10.10.2.14
  C. Core(config-router)# default-information originate Core(config-router)# network 10.10.2.16 0.0.0.15 area 0 Core(config-router)# exit Core(config)# ip route 0.0.0.0 0.0.0.0 10.10.2.14

  ---

  There are two ways to inject a default route into a normal area.

  1.

  If the ASBR already has the default route in its routing table, you can advertise the existing 0.0.0.0/0 into the OSPF domain with the default-information originate router configuration command.

  2.

  If the ASBR doesn't have a default route, you can add the keyword always to the default- information originate command (default-information originate always). This command will advertise a default route into the OSPF domain, regardless of whether it has a route to 0.0.0.0. Another benefit of adding always keyword is that it can add stability to the internetwork. For example, if the ASBR is learning a default route from another routing domain such as RIP and this route is flapping, then without the always keyword, each time the route flaps, the ASBR will send a new Type 5 LSA into the OSPF domain causing some instability inside the OSPF domain. With the always keyword, the ASBR will advertise the default inside the OSPF domain always, In the example shown here, only choice C is correct as the wildcard mask correctly specifies the 10.10.2.16 0.0.0.15 networks, which include all IP addresses in the 10.10.2.16-10.10.2.31 range. In this question we were told that the ISP link should NOT be configured for OSPF, making choice A incorrect. http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a00801ec9f0.shtm l

• Question 73:

  Refer to the exhibit.

  

  Which two statements are true about interVLAN routing in the topology that is shown in the exhibit? (Choose two.)

  A. Host E and host F use the same IP gateway address.
  B. Router1 and Switch2 should be connected via a crossover cable.
  C. Router1 will not play a role in communications between host A and host D.
  D. The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces.
  E. Router1 needs more LAN interfaces to accommodate the VLANs that are shown in the exhibit.
  F. The FastEthernet 0/0 interface on Router1 and the FastEthernet 0/1 interface on Switch2 trunk ports must be configured using the same encapsulation type.
  D. The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces.
  F. The FastEthernet 0/0 interface on Router1 and the FastEthernet 0/1 interface on Switch2 trunk ports must be configured using the same encapsulation type.

  ---

  http://www.cisco.com/en/US/tech/tk389/tk815/technologies_configuration_example09186a00800949f d.shtml

• Question 74:

  Refer to the exhibit.

  

  When running EIGRP, what is required for RouterA to exchange routing updates with RouterC?

  A. AS numbers must be changed to match on all the routers
  B. Loopback interfaces must be configured so a DR is elected
  C. The no auto-summary command is needed on Router A and Router C
  D. Router B needs to have two network statements, one for each connected network
  A. AS numbers must be changed to match on all the routers

  ---

  Here we required same autonomous system between router A,B,C.Routing updated always exchange between in same EIGRP EIGRP autonomous system.you can configure more than one EIGRP autonomous system on the same router. This is typically done at a redistribution point where two EIGRP autonomous systems are interconnected. Individual router interfaces should only be included within a single EIGRP autonomous system. Cisco does not recommend running multiple EIGRP autonomous systems on the same set of interfaces on the router. If multiple EIGRP autonomous systems are used with multiple points of mutual redistribution, it can cause discrepancies in the EIGRP topology table if correct filtering is not performed at the redistribution points. If possible, Cisco recommends you configure only one EIGRP autonomous system in any single autonomous system.

  http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080093f07.shtml

• Question 75:

  What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two.)

  A. It requires the use of ARP.
  B. It can support multiple IPv6 subnets on a single link.
  C. It supports up to 2 instances of OSPFv3 over a common link.
  D. It routes over links rather than over networks.
  B. It can support multiple IPv6 subnets on a single link.
  D. It routes over links rather than over networks.

• Question 76:

  Scenario

  Refer to the topology. Your company has connected the routers R1. R2. and R3 with serial links. R2 and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected to the routers R4 and R5.

  The EIGRP routing protocol is configured.

  You are required to troubleshoot and resolve the EIGRP issues between the various routers.

  Use the appropriate show commands to troubleshoot the issues.

  

  Study the following output taken on R1: R1# Ping 10.5.5.55 source 10.1.1.1

  Type escape sequence to abort.

  Sending 5.100-byte ICMP Echos to 10.5.5.55, timeout is 2 seconds:

  Packet sent with a source address of 10.1.1.1

  Why are the pings failing?

  A. The network statement is missing on R5.
  B. The loopback interface is shut down on R5.
  C. The network statement is missing on R1.
  D. The IP address that is configured on the Lo1 interface on R5 is incorrect.
  C. The network statement is missing on R1.

  ---

  R5 does not have a route to the 10.1.1.1 network, which is the loopback0 IP address of R1. When looking at the EIGRP configuration on R1, we see that the 10.1.1.1 network statement is missing on R1.

  

• Question 77:

  Which Layer 2 protocol encapsulation type supports synchronous and asynchronous circuits and has built-in security mechanisms?

  A. HDLC B. PPP
  C. X.25
  D. Frame Relay
  B

  ---

  High-Level Data Link Control (HDLC) - HDLC is the default encapsulation type on point-to- point, dedicated links, and circuit-switched connections. It is used typically when communicating between two Cisco devices. It is a bit-oriented synchronous data link layer protocol. Point-to-Point Protocol (PPP) - Provides router- to-router and host-to network connections over synchronous and asynchronous circuits. PPP was designed to work with several network layer protocols, such as IP, and IPX. PPP also has built in security mechanisms such as PAP and CHAP X.25/Link Access Procedure, Balanced (LAPB) - ITU-T standard that defines how connections between DTE and DCE are maintained for remote terminal access and computer communications in public data networks. X.25 specifies LAPB, a data line layer protocol. X.25 is a predecessor to Frame Relay.

  Frame Relay - Industry standard, switched data link layer protocol that handles multiple virtual circuits. It is a next-generation to X.25 that is streamlined to eliminate some of the time- consuming processes (such as error correction and flow control) that were employed in X.25.

  

• Question 78:

  Refer to the exhibit.

  

  The Lakeside Company has the internetwork in the exhibit. The administrator would like to reduce the size of the routing table on the Central router. Which partial routing table entry in the Central router represents a route summary that represents the LANs in Phoenix but no additional subnets?

  A. 10.0.0.0/22 is subnetted, 1 subnets D 10.0.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  B. 10.0.0.0/28 is subnetted, 1 subnets D 10.2.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  C. 10.0.0.0/30 is subnetted, 1 subnets D 10.2.2.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  D. 10.0.0.0/22 is subnetted, 1 subnets D 10.4.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  E. 10.0.0.0/28 is subnetted, 1 subnets D 10.4.4.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  F. 10.0.0.0/30 is subnetted, 1 subnets D 10.4.4.4 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  D. 10.0.0.0/22 is subnetted, 1 subnets D 10.4.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1

  ---

  All the above networks can be summarized to 10.0.0.0 network but the question requires to "represent the LANs in Phoenix but no additional subnets" so we must summarized to 10.4.0.0 network. The Phoenix router has 4 subnets so we need to "move left" 2 bits of "/24-> /22 is the best choice - D is correct.

• Question 79:

  Refer to the exhibit.

  

  A technician pastes the configurations in the exhibit into the two new routers shown. Otherwise, the routers are configured with their default configurations. A ping from Host1 to Host2 fails, but the technician is able to ping the S0/0 interface of

  R2 from Host1. The configurations of the hosts have been verified as correct.

  What is the cause of the problem?

  A. The serial cable on R1 needs to be replaced.
  B. The interfaces on R2 are not configured properly.
  C. R1 has no route to the 192.168.1.128 network.
  D. The IP addressing scheme has overlapping subnetworks.
  E. The ip subnet-zero command must be configured on both routers.
  C. R1 has no route to the 192.168.1.128 network.

  ---

  Whenever a node needs to send data to another node on a network, it must first know where to send it. If the node cannot directly connect to the destination node, it has to send it via other nodes along a proper route to the destination node. A remote network is a network that can only be reached by sending the packet to another router. Remote networks are added to the routing table using either a dynamic routing protocol or by configuring static routes. Static routes are routes to networks that a network administrator manually configured.So R should have static route for the 192.168.1.128.

• Question 80:

  A router is running three routing processes: RIP, OSPF, and EIGRP, each configured with default characteristics. Each process learns a route to the same remote network.

  If there are no static routes to the destination and none of the routes were redistributed, which route will be placed in the IP routing table?

  A. the route learned through EIGRP
  B. the route learned through OSPF
  C. the route learned through RIP
  D. the route with the lowest metric
  E. all three routes with the router load balancing
  A. the route learned through EIGRP

  ---

  Reference: http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094195.shtml

  Administrative distance is the feature that routers use in order to select the best path. Administrative distance defines the reliability of a routing protocol. Each routing protocol is prioritized in order of most to least reliable (believable) with the help of an administrative distance value. Lowest Administrative distance will be chosen first.