Cisco 200-120 Online Practice Questions and Exam Preparation

Cisco 200-120 Online Questions & Answers

• Question 181:

  Which feature builds a FIB and an adjacency table to expedite packet forwarding?

  A. Cisco Express Forwarding
  B. process switching
  C. fast switching
  D. cut-through
  A. Cisco Express Forwarding

• Question 182:

  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

  ---

  The 10.4.0.0/22 route includes 10.4.0.0/24, 10.4.1.0/24, 10.4.2.0/24 and 10.4.3.0/24 networks only.

• Question 183:

  Which three characteristics are representative of a link-state routing protocol? (Choose three.)

  A. provides common view of entire topology
  B. exchanges routing tables with neighbors
  C. calculates shortest path
  D. utilizes event-triggered updates
  E. utilizes frequent periodic updates
  A. provides common view of entire topology
  C. calculates shortest path
  D. utilizes event-triggered updates

• Question 184:

  A router receives information about network 192.168.10.0/24 from multiple sources. What will the router consider the most reliable information about the path to that network?

  A. a directly connected interface with an address of 192.168.10.254/24
  B. a static route to network 192.168.10.0/24
  C. a RIP update for network 192.168.10.0/24
  D. an OSPF update for network 192.168.0.0/16
  E. a default route with a next hop address of 192.168.10.1
  F. a static route to network 192.168.10.0/24 with a local serial interface configured as the next hop
  A. a directly connected interface with an address of 192.168.10.254/24

  ---

  When there is more than one way to reach a destination, it will choose the best one based on a couple of things. First, it will choose the route that has the longest match; meaning the most specific route. So, in this case the /24 routes will be chosen over the /16 routes. Next, from all the /24 routes it will choose the one with the lowest administrative distance. Directly connected routes have an AD of 1 so this will be the route chosen.

• Question 185:

  What SNMP message alerts the manager to a condition on the network?

  A. response
  B. get
  C. trap
  D. capture
  C. trap

  ---

  An agent can send unsolicited traps to the manager. Traps are messages alerting the SNMP manager to a condition on the network. Traps can mean improper user authentication, restarts, link status (up or down), MAC address tracking, closing of a TCP connection, loss of connection to a neighbor, or other significant events.

  Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12-1_9_ea1/configuration/guide/scg/swsnmp.html

• Question 186:

  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.

  

  

  

  

  Router R6 does not form an EIGRP neighbor relationship correctly with router R1. What is the cause for this misconfiguration?

  A. The K values mismatch.
  B. The AS does not match.
  C. The network command is missing.
  D. The passive interface command is enabled.
  C. The network command is missing.

  ---

  The link from R1 to R6 is shown below:

  

  As you can see, they are both using e0/0. The IP addresses are in the 192.168.16.0 network:

  

  But when we look at the EIGRP configuration, the "network 192.168.16.0" command is missing on R6.

  

• Question 187:

  Three switches are connected to one another via trunk ports. Assuming the default switch configuration, which switch is elected as the root bridge for the spanning-tree instance of VLAN 1?

  A. the switch with the highest MAC address
  B. the switch with the lowest MAC address
  C. the switch with the highest IP address
  D. the switch with the lowest IP address
  B. the switch with the lowest MAC address

  ---

  Each switch in your network will have a Bridge ID Priority value, more commonly referred to as a BID. This BID is a combination of a default priority value and the switch's MAC address, with the priority value listed first. The lowest BID will win the election process.

  For example, if a Cisco switch has the default priority value of 32,768 and a MAC address of 11-22-33-44-55-66, the BID would be 32768:11-22-33-44-55-66. Therefore, if the switch priority is left at the default, the MAC address is the deciding factor in the root bridge election.

• Question 188:

  What information does a router running a link-state protocol use to build and maintain its topological database? (Choose two.)

  A. hello packets
  B. SAP messages sent by other routers
  C. LSAs from other routers
  D. beacons received on point-to-point links
  E. routing tables received from other link-state routers
  F. TTL packets from designated routers
  A. hello packets
  C. LSAs from other routers

  ---

  Neighbor discovery is the first step in getting a link state environment up and running. In keeping with the friendly neighbor terminology, a Hello protocol is used for this step. The protocol will define a Hello packet format and a procedure for

  exchanging the packets and processing the information the packets contain.

  After the adjacencies are established, the routers may begin sending out LSAs. As the term flooding implies, the advertisements are sent to every neighbor. In turn, each received LSA is copied and forwarded to every neighbor except the one

  that sent the LSA.

• Question 189:

  Refer to the exhibit.

  

  After HostA pings HostB, which entry will be in the ARP cache of HostA to support this transmission?

  

  A. Exhibit A
  B. Exhibit B
  C. Exhibit C
  D. Exhibit D
  E. Exhibit E
  F. Exhibit F
  A. Exhibit A

  ---

  Host A knows host B is in another network so it will send the pings to its default gateway 192.168.6.1. Host A sends a broadcast frame asking the MAC address of 192.168.6.1. This information (IP and MAC address of the default gateway) is saved in its ARP cache for later use.

• Question 190:

  Which command allows you to verify the encapsulation type (CISCO or IETF) for a Frame Relay link?

  A. show frame-relay lmi
  B. show frame-relay map
  C. show frame-relay pvc
  D. show interfaces serial
  B. show frame-relay map

  ---

  When connecting Cisco devices with non-Cisco devices, you must use IETF4 encapsulation on both devices. Check the encapsulation type on the Cisco device with the show frame-relay map exec command.