Cisco 200-101 Online Practice Questions and Exam Preparation

Cisco 200-101 Online Questions & Answers

• Question 131:

  Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?

  A. IETF
  B. ANSI Annex D
  C. Q9333-A Annex A
  D. HDLC
  A. IETF

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  Cisco supports two Frame Relay encapsulation types: the Cisco encapsulation and the IETF Frame Relay encapsulation, which is in conformance with RFC 1490 and RFC 2427. The former is often used to connect two Cisco routers while the

  latter is used to connect a Cisco router to a non-Cisco router. You can test with your Cisco router when typing the command Router(config-if)#encapsulation frame-relay ? on a WAN link.

  Note: Three LMI options are supported by Cisco routers are ansi, Cisco, and Q933a. They represent the ANSI Annex D, Cisco, and ITU Q933-A (Annex A) LMI types, respectively.

  HDLC is a WAN protocol same as Frame-Relay and PPP so it is not a Frame Relay encapsulation type.

  

• Question 132:

  What are three benefits of GLBP? (Choose three.)

  A. GLBP supports up to eight virtual forwarders per GLBP group.
  B. GLBP supports clear text and MD5 password authentication between GLBP group members.
  C. GLBP is an open source standardized protocol that can be used with multiple vendors.
  D. GLBP supports up to 1024 virtual routers.
  E. GLBP can load share traffic across a maximum of four routers.
  F. GLBP elects two AVGs and two standby AVGs for redundancy.
  B. GLBP supports clear text and MD5 password authentication between GLBP group members.
  D. GLBP supports up to 1024 virtual routers.
  E. GLBP can load share traffic across a maximum of four routers.

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  http://www.cisco.com/en/US/docs/ios/12_2s/feature/guide/fs_glbp2.html

  Load Sharing You can configure GLBP in such a way that traffic from LAN clients can be shared by multiple routers, thereby sharing the traffic load more equitably among available routers. Multiple Virtual Routers GLBP supports up to 1024 virtual routers (GLBP groups) on each physical interface of a router, and up to four virtual forwarders per group.

  Preemption The redundancy scheme of GLBP enables you to preempt an active virtual gateway with a higher priority backup virtual gateway that has become available. Forwarder preemption works in a similar way, except that forwarder preemption uses weighting instead of priority and is enabled by default.

  Authentication You can use a simple text password authentication scheme between GLBP group members to detect configuration errors. A router within a GLBP group with a different authentication string than other routers will be ignored by other group members.

  http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx- s/unicast/configuration/guide/l3_glbp.html

  GLBP Authentication GLBP has three authentication types: MD5 authentication Plain text authentication No authentication MD5 authentication provides greater security than plain text authentication. MD5 authentication allows each GLBP group member to use a secret key to generate a keyed MD5 hash that is part of the outgoing packet. At the receiving end, a keyed hash of an incoming packet is generated. If the hash within the incoming packet does not match the generated hash, the packet is ignored. The key for the MD5 hash can either be given directly in the configuration using a key string or supplied indirectly through a key chain. You can also choose to use a simple password in plain text to authenticate GLBP packets, or choose no authentication for GLBP.

• Question 133:

  Refer to the exhibit.

  

  A network associate has configured OSPF with the command: City(config-router)# network 192.168.12.64 0.0.0.63 area 0

  After completing the configuration, the associate discovers that not all the interfaces are participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this configuration statement? (Choose three.)

  A. FastEthernet0 /0
  B. FastEthernet0 /1
  C. Serial0/0
  D. Serial0/1.102
  E. Serial0/1.103
  F. Serial0/1.104
  B. FastEthernet0 /1
  C. Serial0/0
  D. Serial0/1.102

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  The "network 192.168.12.64 0.0.0.63 equals to network 192.168.12.64/26. This network has:

  Increment: 64 (/26= 1111 1111.1111 1111.1111 1111.1100 0000) Network address: 192.168.12.64 Broadcast address: 192.168.12.127

  Therefore all interface in the range of this network will join OSPF - B C D are correct.

• Question 134:

  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

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  map will show frame relay encapsulation (cisco or ietf) http://www.cisco.com/en/US/docs/ios/12_2/wan/command/reference/wrffr4.html#wp1029343 "show frame-relay map" will show frame relay encapsulation type (CISCO or IETF)

  

• Question 135:

  What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router?

  A. 2
  B. 4
  C. 16
  D. unlimited
  B. 4

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  4 is the default number of routes that OSPF will include in routing table if more than 4 equal cost routes exist for the same subnet. However, OSPF can include up to 16 equal cost routes in the routing table and perform load balancing amongst them. In order to configure this feature, you need to use the OSPF subcommand maximum-paths, i.e. maximum-paths 16.

• Question 136:

  What command is used to verify the DLCI destination address in a Frame Relay static configuration?

  A. show frame-relay pvc
  B. show frame-relay lmi
  C. show frame-relay map
  D. show frame relay end-to-end
  C. show frame-relay map

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  Cisco Frame Relay Configurations http://www.ciscopress.com/articles/article.asp?p=170741andseqNum=9 show frame-relay map The show frame-relay map privileged EXEC mode command shows the contents of the next hop protocol address to DLCI mapping table on the router. The table contains both dynamic mapped and static mapped entries. The below example shows a sample output of the show frame-relay map command. Router#show frame-relay map Serial1/2 (up): ip 172.16.1.4 dlci 401(0x191,0x6410), dynamic, broadcast,, status defined, active Serial1/2 (up): ip 172.16.1.5 dlci 501(0x1F5,0x7C50), dynamic, broadcast,, status defined, active Serial1/2 (up): ip 172.16.1.2 dlci 301 (0x12D,0x48D0), dynamic, broadcast,, status defined, active

• Question 137:

  Enhanced Interior Gateway Routing Protocol (EIGRP) is a Cisco proprietary routing protocol, so it is vendor-specific. By default, EIGRP internal routes have an administrative distance value of 90.

  OSPF uses cost as its metric. By default, the cost of an interface is calculated based on bandwidth with the formula cost= 10000 0000/bandwidth (in bps). OSPF elects a DR on each broadcast and nonbroadcast multiaccess networks (like

  Ethernet and Frame Relay environments, respectively). It doesn't elect a DR on point-to-point link (like a serial WAN).

  Select and Place:

  

  

• Question 138:

  Select and Place:

  

  

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  poison reverse: A router learns from its neighbor that a route is down and the router sends an update back to the neighbor with an infinite metric to that route LSA: The packets flooded when a topology change occurs, causing network routers to update their topological databases and recalculate routes split horizon: This prevents sending information about a routeback out the same interface that originally learned about the route holddown timer: For a given period, this causes the router to ignore any updates with poorer metrics to a lost network

• Question 139:

  What Cisco IOS feature can be enabled to pinpoint an application that is causing slow network performance?

  A. SNMP
  B. Netflow
  C. WCCP
  D. IP SLA
  B. Netflow

• Question 140:

  What are three reasons to collect Netflow data on a company network? (Choose three.)

  A. To identify applications causing congestion
  B. To authorize user network access
  C. To report and alert link up / down instances
  D. To diagnose slow network performance, bandwidth hogs, and bandwidth utilization
  E. To detect suboptimal routing in the network
  F. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service
  A. To identify applications causing congestion
  D. To diagnose slow network performance, bandwidth hogs, and bandwidth utilization
  F. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service