[Free] 2017(July) EnsurePass Examcollection Cisco 200-105 Dumps with VCE and PDF 121-130

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Interconnecting Cisco Networking Devices Part 2 (ICND2 v3.0)

Question No: 121 – (Topic 3)

When a router undergoes the exchange protocol within OSPF, in what order does it pass through each state?

  1. exstart state gt; loading state gt; exchange state gt; full state

  2. exstart state gt; exchange state gt; loading state gt; full state

  3. exstart state gt; full state gt; loading state gt; exchange state

  4. loading state gt; exchange state gt; full state gt; exstart state

Answer: B Explanation:

OSPF states for adjacency formation are (in order) Down, Init, Attempt, 2-way, Exstart, Exchange, Loading and Full.

Reference:

Why Are OSPF Neighbors Stuck in Exstart/Exchange State? http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080093f0d.shtml

Question No: 122 – (Topic 3)

Which command is used to display the collection of OSPF link states?

  1. show ip ospf link-state

  2. show ip ospf lsa database

  3. show ip ospf neighbors

  4. show ip ospf database

Answer: D Explanation:

http://www.cisco.com/en/US/docs/ios/iproute_ospf/command/reference/iro_osp3.html#wp1 01217

Examples

The following is sample output from the show ip ospf database command when no arguments or keywords are used:

Router# show ip ospf database

OSPF Router with id(192.168.239.66) (Process ID 300)

image

image

Question No: 123 – (Topic 3)

Which two are advantages of static routing when compared to dynamic routing? (Choose two.)

  1. Configuration complexity decreases as network size increases.

  2. Security increases because only the network administrator may change the routing table.

  3. Route summarization is computed automatically by the router.

  4. Routing tables adapt automatically to topology changes.

  5. An efficient algorithm is used to build routing tables, using automatic updates.

  6. Routing updates are automatically sent to neighbors.

  7. Routing traffic load is reduced when used in stub network links.

Answer: B,G Explanation:

When reading (or being lectured about) all the glorious details of dynamic routing protocols, it#39;s hard not to come away with the impression that dynamic routing is always better than static routing. It#39;s important to keep in mind that the primary duty of a dynamic routing protocol is to automatically detect and adapt to topological changes in the internetwork.

The price of this quot;automationquot; is paid in bandwidth, security, and maybe queue space, in memory, and in processing time.

A frequent objection to static routing is that it is hard to administer. This criticism may be true of medium to large topologies with many alternative routes, but it is certainly not true of small internetworks with few or no alternative routes.

References: http://www.ciscopress.com/articles/article.asp?p=24090amp;seqNum=6

http://www.ciscopress.com/articles/article.asp?p=24090

Question No: 124 – (Topic 3)

What OSPF command, when configured, will include all interfaces into area 0?

A. network 0.0.0.0 255.255.255.255 area 0

B. network 0.0.0.0 0.0.0.0 area 0

C. network 255.255.255.255 0.0.0.0 area 0

D. network all-interfaces area 0

Answer: A Explanation:

Example 3-1 displays OSPF with a process ID of 1 and places all interfaces configured with an IP address in area 0. The network command network 0.0.0.0 255.255.255.255 area 0 dictates that you do not care (255.255.255.255) what the IP address is, but if an IP

address is enabled on any interface, place it in area 0. Example 3-1 Configuring OSPF in a Single Area router ospf 1

network 0.0.0.0 255.255.255.255 area 0

Reference: http://www.ciscopress.com/articles/article.asp?p=26919amp;seqNum=3

Question No: 125 – (Topic 3)

Which two statements describe the process identifier that is used in the command to configure OSPF on a router? (Choose two.)

Router(config)# router ospf 1

  1. All OSPF routers in an area must have the same process ID.

  2. Only one process number can be used on the same router.

  3. Different process identifiers can be used to run multiple OSPF processes

  4. The process number can be any number from 1 to 65,535.

  5. Hello packets are sent to each neighbor to determine the processor identifier.

Answer: C,D Explanation:

The areas can be any number from 0 to 4.2 billion and 1 to 65,535 for the Process ID. The process ID is the ID of the OSPF process to which the interface belongs. The process ID is local to the router, and two OSPF neighboring routers can have different OSPF process IDs. (This is not true of Enhanced Interior Gateway Routing Protocol [EIGRP], in which the routers need to be in the same autonomous system). Cisco IOS Software can

run multiple OSPF processes on the same router, and the process ID merely distinguishes one process from the other. The process ID should be a positive integer.

Question No: 126 – (Topic 3)

Refer to the exhibit.

image

What information about the interfaces on the Main_Campus router is true?

  1. The LAN interfaces are configured on different subnets.

  2. Interface FastEthernet 0/0 is configured as a trunk.

  3. The Layer 2 protocol of interface Serial 0/1 is NOT operational.

  4. The router is a modular router with five FastEthernet interfaces.

  5. Interface FastEthernet 0/0 is administratively deactivated.

Answer: B Explanation:

Interface fa0/0 breaks into sub-interfaces and Main_Campus router is connected with switch via fa0/0 .Subinterfaces configured with different subnet masks so the same switch has multiple vlans and allows communication between these VLAN#39;s. For routing and inter- vlan we need to configure a trunk port. So B will be the correct answer.

Topic 4, WAN Technologies

Question No: 127 – (Topic 4)

The command show frame-relay map gives the following output:

Serial 0 (up): ip 192.168.151.4 dlci 122, dynamic, broadcast, status defined, active Which statements represent what is shown?(Choose three.)

  1. 192.168.151.4 represents the IP address of the remote router

  2. 192.168.151.4 represents the IP address of the local serial interface

  3. DLCI 122 represents the interface of the remote serial interface

  4. DLCI 122 represents the local number used to connect to the remote address

  5. broadcast indicates that a dynamic routing protocol such as RIP v1 can send packets across this PVC

  6. active indicates that the ARP process is working

Answer: A,D,E Explanation:

http://www.cisco.com/en/US/docs/ios/12_2/wan/command/reference/wrffr4.html#wp102934 3

image

Question No: 128 – (Topic 4)

What occurs on a Frame Relay network when the CIR is exceeded?

  1. All TCP traffic is marked discard eligible.

  2. All UDP traffic is marked discard eligible and a BECN is sent.

  3. All TCP traffic is marked discard eligible and a BECN is sent.

  4. All traffic exceeding the CIR is marked discard eligible.

Answer: D Explanation:

Committed information rate (CIR): The minimum guaranteed data transfer rate agreed to by the Frame Relay switch. Frames that are sent in excess of the CIR are marked as discard eligible (DE) which means they can be dropped if the congestion occurs within the Frame Relay network.

Note: In the Frame Relay frame format, there is a bit called Discard eligible (DE) bit that is used to identify frames that are first to be dropped when the CIR is exceeded.

Question No: 129 – (Topic 4)

Refer to the exhibit.

image

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?

  1. The serial cable on R1 needs to be replaced.

  2. The interfaces on R2 are not configured properly.

  3. R1 has no route to the 192.168.1.128 network.

  4. The IP addressing scheme has overlapping subnetworks.

  5. The ip subnet-zero command must be configured on both routers.

Answer: C Explanation:

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 No: 130 – (Topic 4)

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

  1. RSA

  2. L2TP

  3. IPsec

  4. PPTP

Answer: C Explanation:

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.

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