Cisco 200-105 Online Practice Questions and Exam Preparation

Cisco 200-105 Online Questions & Answers

• Question 611:

  Which command must you enter to prepare an interface to carry voice traffic?

  A. Switch1(config-if)#switchport mode access
  B. Switch1(config-if)#switchport mode trunk
  C. Switch1(config-if)#switchport access vlan 10
  D. Switch1(config-if)#switchport host
  B. Switch1(config-if)#switchport mode trunk

• Question 612:

  Disadvantages of using proxy ARP?

  A. It rewrites MAC in the database
  B. It can be used for DDos attack
  B. It can be used for DDos attack

• Question 613:

  Which protocol is an open standard protocol framework that is commonly used in VPNs, to provide secure end-to-end communications?

  A. RSA
  B. L2TP
  C. IPsec
  D. PPTP
  C. IPsec

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  Internet Protocol Security (IPsec) is a technology protocol suite for securing Internet Protocol (IP) communications by authenticating and/or encrypting each IP packet of a communication session. IPsec also includes protocols for establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic keys to be used during the session.

• Question 614:

  Instructions

  Enter Cisco IOS commands on device to verify network operation and answer for multiple-choice questions.

  THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.

  Click the device icon to gain access to the console of the router. No console or enable passwords are required.

  To access the multiple-choice questions, click the numbered boxes on the left of the top panel.

  This task has four multiple-choice questions. Be sure to answer all four questions before clicking the Next button.

  Scenario

  You are implementing PPP over serial links between R1 router and branch offices. In Phase 1 you must implement and verify PPP and GRE tunnel configurations as mentioned in the topology. In Phase 2 your colleague is expected to do

  NAT and ISP configurations between R1 and ISP router.

  Identify the issues that you encounter during PPP over serial links implementation.

  Routers Branch1, Branch2, and Branch3 connect to Router R1 in the main office over serial links.

  PPP multilink implementation is recommended between R1 and Branch1 routers.

  The GRE tunnel is configured between R2 and Branch2 routers, and traffic between Server farm1 10.10.10.0/24 network and Branch2 LAN 10.10.20.0/24 network, is routed over GRE tunnel using static route.

  You have console access on R1, R2, Branch1, Branch2, and Branch3 devices. Use only show commands to troubleshoot the issues.

  

  Which statement about the router configurations is correct?

  A. PPP PAP is authentication configured between Branch2 and R1.
  B. Tunnel keepalives are not configured for the tunnel0 interface on Branch2 and R2.
  C. The Branch2 LAN network 192.168.11.0/24 is not advertised into the EIGRP network.
  D. The Branch3 LAN network 192.168.10.0/24 is not advertised into the EIGRP network.
  E. PPP CHAP authentication is configured between Branch1 and R1.
  D. The Branch3 LAN network 192.168.10.0/24 is not advertised into the EIGRP network.

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  When we check Branch3 router we notice that "network 192.168.10.0" command is missing under "router eigrp 100" making answer D correct.

  

• Question 615:

  Refer to the exhibit. What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown?

  

  A. The Serial0/0 interface is passing traffic.
  B. The DLCI 100 was dynamically allocated by the router
  C. The Serial0/0 interface acquired the IP address of 172.16.3.1 from a DHCP server
  D. The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud
  E. The mapping between DLCI 100 and the end station IP address 172.16.3.1 was learned through Inverse ARP
  E. The mapping between DLCI 100 and the end station IP address 172.16.3.1 was learned through Inverse ARP

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  The term dynamic indicates that the DLCI number and the remote router IP address 172.16.3.1 are learned via the Inverse ARP process. Inverse ARP is a technique by which dynamic mappings are constructed in a network, allowing a device such as a router to locate the logical network address and associate it with a permanent virtual circuit (PVC).

• Question 616:

  The network administrator has been asked to give reasons for moving from IPv4 to IPv6. What are two valid reasons for adopting IPv6 over IPv4? (Choose two.)

  A. no broadcast
  B. change of source address in the IPv6 header
  C. change of destination address in the IPv6 header
  D. Telnet access does not require a password
  E. autoconfiguration
  F. NAT
  A. no broadcast
  E. autoconfiguration

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  Six Benefits Of IPv6 With IPv6, everything from appliances to automobiles can be interconnected. But an increased number of IT addresses isn't the only advantage of IPv6 over IPv4. In honor of World IPv6 Day, here are six more good reasons to make sure your hardware, software, and services support IPv6. More Efficient Routing IPv6 reduces the size of routing tables and makes routing more efficient and hierarchical. IPv6 allows ISPs to aggregate the prefixes of their customers' networks into a single prefix and announce this one prefix to the IPv6 Internet. In addition, in IPv6 networks, fragmentation is handled by the source device, rather than the router, using a protocol for discovery of the path's maximum transmission unit (MTU). More Efficient Packet Processing IPv6's simplified packet header makes packet processing more efficient. Compared with IPv4, IPv6 contains no IP-level checksum, so the checksum does not need to be recalculated at every router hop. Getting rid of the IPlevel checksum was possible because most link-layer technologies already contain checksum and error-control capabilities. In addition, most transport layers, which handle end-to-end connectivity, have a checksum that enables error detection. Directed Data Flows IPv6 supports multicast rather than broadcast. Multicast allows bandwidth-intensive packet flows (like multimedia streams) to be sent to multiple destinations simultaneously, saving network bandwidth. Disinterested hosts no longer must process broadcast packets. In addition, the IPv6 header has a new field, named Flow Label, that can identify packets belonging to the same flow. Simplified Network Configuration Address auto- configuration (address assignment) is built in to IPv6. A router will send the prefix of the local link in its router advertisements. A host can generate its own IP address by appending its link-layer (MAC) address, converted into Extended Universal Identifier (EUI) 64bit format, to the 64 bits of the local link prefix. Support For New Services By eliminating Network Address Translation (NAT), true end-to-end connectivity at the IP layer is restored, enabling new and valuable services. Peer-to-peer networks are easier to create and maintain, and services such as VoIP and Quality of Service (QoS) become more robust. Security IPSec, which provides confidentiality, authentication and data integrity, is baked into in IPv6. Because of their potential to carry malware, IPv4 ICMP packets are often blocked by corporate firewalls, but ICMPv6, the implementation of the Internet Control Message Protocol for IPv6, may be permitted because IPSec can be applied to the ICMPv6 packets.

  Reference: http://www.networkcomputing.com/ipv6/six-benefits-of-ipv6/230500009

• Question 617:

  How does an IP SLA ICMP Echo operation measure response time?

  A. it checks the timestamp on source and destination ICMP Time Exceeded messages
  B. it checks the timestamp on ICMP Echo messages
  C. it calculates the time that elapses from when the device sends an ICMP Echo request to when it receives an ICMP Echo reply
  D. It checks the one-way delay of each ICMP Echo packet received
  B. it checks the timestamp on ICMP Echo messages

• Question 618:

  Refer to the exhibit.

  Which statement describes DLCI 17?

  

  A. DLCI 17 describes the ISDN circuit between R2 and R3.
  B. DLCI 17 describes a PVC on R2. It cannot be used on R3 or R1.
  C. DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3.
  D. DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.
  C. DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3.

  ---

  DLCI stands for Data Link Connection Identifier. DLCI values are used on Frame Relay interfaces to distinguish between different virtual circuits. DLCIs have local significance because, the identifier references the point between the local router and the local Frame Relay switch to which the DLCI is connected.

• Question 619:

  Which parameter would you tune to affect the selection of a static route as a backup, when a dynamic protocol is also being used?

  A. hop count
  B. administrative distance
  C. link bandwidth
  D. link delay
  E. link cost
  B. administrative distance

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  What Is Administrative Distance?

  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.

  

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

• Question 620:

  DRAG DROP

  Drag and drop the SDN components from the left onto the correct API types on the right.

  Select and Place: