2019 Free Microsoft EnsurePass 100-105 Dumps VCE and PDF Download Part 12

EnsurePass
Exam Dumps
100-105 Dumps VCE and PDF
2019 100-105 Dumps VCE and PDF

 

QUESTION 111

What information can be used by a router running a link-state protocol 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

 

Correct Answer: AC

Explanation:

Reference: http://www.ciscopress.com/articles/article.asp?p=24090&seqNum=4

 

Link state protocols, sometimes called shortest path first or distributed database protocols, are built around a well-known algorithm from graph theory,

E.W. Dijkstra’a shortest path algorithm. Examples of link state routing protocols are:

Open Shortest Path First (OSPF) for IP

The ISO’s Intermediate System to Intermediate System (IS-IS) for CLNS and IP DEC’s DNA Phase V

Novell’s NetWare Link Services Protocol (NLSP)

Although link state protocols are rightly considered more complex than distance vector protocols, the basic functionality is not complex at all:

1. Each router establishes a relationship–an adjacency–with each of its neighbors.

2. Each router sends link state advertisements (LSAs), some

3. Each router stores a copy of all the LSAs it has seen in a database. If all works well, the databases in all routers should be identical.

4. The completed topological database, also called the link state database, describes a graph of the internetwork. Using the Dijkstra algorithm, each router calculates the shortest path to each network and enters this information into the route table.

OSPF Tutorial

 

 

QUESTION 112

Refer to the exhibit. Which two statements are correct? (Choose two.)

 

image096

 

A.

This is a default route.

B.

Adding the subnet mask is optional for the ip route command.

C.

This will allow any host on the 172.16.1.0 network to reach all known destinations beyond RouterA.

D.

This command is incorrect, it needs to specify the interface, such as s0/0/0 rather than an IP address.

E.

The same command needs to be entered on RouterA so that hosts on the 172.16.1.0 network can reach network 10.0.0.0.

 

Correct Answer: AC

Explanation:

This is obviously the default route which is set between the routers and since it is entered in such a manner that it ensures connectivity between the stub network and any host lying beyond RouterA.

 

 

 

 

 

QUESTION 113

Refer to the exhibit. The enterprise has decided to use the network address 172.16.0.0. The network administrator needs to design a classful addressing scheme to accommodate the three subnets, with 30, 40, and 50 hosts, as shown. What subnet mask would accommodate this network?

 

image097

 

A.

255.255.255.192

B.

255.255.255.224

C.

255.255.255.240

D.

255.255.255.248

E.

255.255.255.252

 

Correct Answer: A

Explanation:

Subnet mask A i.e. 255.255.255.192 with CIDR of /26 which means 64 hosts per subnet which are sufficient to accommodate even the largest subnet of 50 hosts.

 

image099

 

QUESTION 114

Refer to the exhibit. Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this router?

 

image100

 

A.

10.1.1.2

B.

10.154.154.1

C.

172.16.5.1

D.

192.168.5.3

 

Correct Answer: C

Explanation:

The highest IP address of all loopback interfaces will be chosen -> Loopback 0 will be chosen as the router ID.

 

 

QUESTION 115

Which two of these functions do routers perform on packets? (Choose two.)

 

A.

Examine the Layer 2 headers of inbound packets and use that information to determine the next hops for the packets

B.

Update the Layer 2 headers of outbound packets with the MAC addresses of the next hops

C.

Examine the Layer 3 headers of inbound packets and use that information to determine the next hops for the packets

D.

Examine the Layer 3 headers of inbound packets and use that information to determine the complete paths along which the packets will be routed to their ultimate destinations

E.

Update the Layer 3 headers of outbound packets so that the packets are properly directed to valid next hops

F.

Update the Layer 3 headers of outbound packets so that the packets are properly directed to their ultimate destinations

 

Correct Answer: BC

Explanation:

This is the basic function of the router to receive incoming packets and then forward them to their required destination. This is done by reading layer 3 headers of inbound packets and update the info to layer 2 for further hopping.

 

 

 

 

 

 

 

 

 

 

QUESTION 116

Refer to the exhibit. Why are two OSPF designated routers identified on Core-Router?

 

image101

 

A.

Core-Router is connected to more than one multi-access network.

B.

The router at 208.149.23.130 is a secondary DR in case the primary fails.

C.

Two router IDs have the same OSPF priority and are therefore tied for DR election

D.

The DR election is still underway and there are two contenders for the role.

 

Correct Answer: A

Explanation:

OSPF elects one DR per multi-access network. In the exhibit there are two DR so there must have more than one multi-access network.

 

 

QUESTION 117

What does administrative distance refer to?

 

A.

the cost of a link between two neighboring routers

B.

the advertised cost to reach a network

C.

the cost to reach a network that is administratively set

D.

a measure of the trustworthiness of a routing information source

 

Correct Answer: D

Explanation:

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 when there are two or more different routes to the same destination from two different routing protocols. 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.

 

Administrative distance is the first criterion that a router uses to determine which routing protocol to use if two protocols provide route information for the same destination. Administrative distance is a measure of the trustworthiness of the source of the routing information. The smaller the administrative distance value, the more reliable the protocol.

 

 

QUESTION 118

Which IP address is a private address?

 

A.

12.0.0.1

B.

168.172.19.39

C.

172.20.14.36

D.

172.33.194.30

E.

192.169.42.34

 

Correct Answer: C

 

 

QUESTION 119

Refer to the exhibit. If the resume command is entered after the sequence that is shown in the exhibit, which router prompt will be displayed?

 

image102

 

A.

Router1>

B.

Router1#

C.

Router2>

D.

Router2#

 

Correct Answer: C

Explanation:

After resuming the telnet session by using the Enter key after it has been suspended, it will resume back to the telnet session so it will be back to the router2>prompt.

 

 

QUESTION 120

A network administrator is trying to add a new router into an established OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the partial configuration shown below, what configuration error is causing this problem?

 

Router(config)# router ospf 1

 

Router(config-router)# network 10.0.0.0 255.0.0.0 area 0

 

A.

The process id is configured improperly.

B.

The OSPF area is configured improperly.

C.

The network wildcard mask is configured improperly.

D.

The network number is configured improperly.

E.

The AS is configured improperly.

F.

The network subnet mask is configured improperly.

 

Correct Answer: C

Explanation:

When configuring OSPF, the mask used for the network statement is a wildcard mask similar to an access list. In this specific example, the correct syntax would have been “network 10.0.0.0 0.0.0.255 area 0.”


Leave a Reply

Your email address will not be published. Required fields are marked *

  • Categories

  • Tags

  • Hot Exams

  • Hot Exams

  • Hot Catageories

  • microsoft dumps

    62-193 Dumps
    70-243 Dumps
    70-246 Dumps
    70-247 Dumps
    70-331 Dumps
    70-332 Dumps
    70-333 Dumps
    70-334 Dumps
    70-339 Dumps
    70-341 Dumps
    70-342 Dumps
    70-345 Dumps
    70-346 Dumps
    70-347 Dumps
    70-348 Dumps
    70-354 Dumps
    70-355 Dumps
    70-357 Dumps
    70-383 Dumps
    70-384 Dumps
    70-385 Dumps
    70-398 Dumps
    70-410 Dumps
    70-411 Dumps
    70-412 Dumps
    70-413 Dumps
    70-414 Dumps
    70-417 Dumps
    70-461 Dumps
    70-462 Dumps
    70-463 Dumps
    70-464 Dumps
    70-465 Dumps
    70-466 Dumps
    70-467 Dumps
    70-469 Dumps
    70-470 Dumps
    70-473 Dumps
    70-475 Dumps
    70-480 Dumps
    70-481 Dumps
    70-482 Dumps
    70-483 Dumps
    70-484 Dumps
    70-485 Dumps
    70-486 Dumps
    70-487 Dumps
    70-488 Dumps
    70-489 Dumps
    70-490 Dumps
    70-491 Dumps
    70-492 Dumps
    70-494 Dumps
    70-496 Dumps
    70-497 Dumps
    70-498 Dumps
    70-499 Dumps
    70-517 Dumps
    70-532 Dumps
    70-533 Dumps
    70-534 Dumps
    70-535 Dumps
    70-537 Dumps
    70-640 Dumps
    70-642 Dumps
    70-646 Dumps
    70-673 Dumps
    70-680 Dumps
    70-681 Dumps
    70-682 Dumps
    70-684 Dumps
    70-685 Dumps
    70-686 Dumps
    70-687 Dumps
    70-688 Dumps
    70-689 Dumps
    70-692 Dumps
    70-694 Dumps
    70-695 Dumps
    70-696 Dumps
    70-697 Dumps
    70-698 Dumps
    70-703 Dumps
    70-705 Dumps
    70-713 Dumps
    70-734 Dumps
    70-735 Dumps
    70-740 Dumps
    70-741 Dumps
    70-742 Dumps
    70-743 Dumps
    70-744 Dumps
    70-745 Dumps
    70-761 Dumps
    70-762 Dumps
    70-764 Dumps
    70-765 Dumps
    70-767 Dumps
    70-768 Dumps
    70-773 Dumps
    70-774 Dumps
    70-775 Dumps
    70-776 Dumps
    70-778 Dumps
    70-779 Dumps
    70-980 Dumps
    70-981 Dumps
    70-982 Dumps
    74-343 Dumps
    74-344 Dumps
    74-409 Dumps
    74-678 Dumps
    74-697 Dumps
    77-418 Dumps
    77-419 Dumps
    77-420 Dumps
    77-421 Dumps
    77-422 Dumps
    77-423 Dumps
    77-424 Dumps
    77-425 Dumps
    77-426 Dumps
    77-427 Dumps
    77-428 Dumps
    77-600 Dumps
    77-601 Dumps
    77-602 Dumps
    77-603 Dumps
    77-604 Dumps
    77-605 Dumps
    77-725 Dumps
    77-726 Dumps
    77-727 Dumps
    77-728 Dumps
    77-729 Dumps
    77-730 Dumps
    77-731 Dumps
    77-853 Dumps
    77-881 Dumps
    77-882 Dumps
    77-883 Dumps
    77-884 Dumps
    77-885 Dumps
    77-886 Dumps
    77-887 Dumps
    77-888 Dumps
    77-891 Dumps
    98-349 Dumps
    98-361 Dumps
    98-362 Dumps
    98-363 Dumps
    98-364 Dumps
    98-365 Dumps
    98-366 Dumps
    98-367 Dumps
    98-368 Dumps
    98-369 Dumps
    98-372 Dumps
    98-373 Dumps
    98-374 Dumps
    98-375 Dumps
    98-379 Dumps
    98-380 Dumps
    98-381 Dumps
    98-382 Dumps
    98-383 Dumps
    98-388 Dumps
    AZ-100 Dumps
    AZ-101 Dumps
    AZ-102 Dumps
    INF-203x Dumps
    INF-204x Dumps
    INF-205x Dumps
    INF-206x Dumps
    MB2-700 Dumps
    MB2-701 Dumps
    MB2-702 Dumps
    MB2-703 Dumps
    MB2-704 Dumps
    MB2-706 Dumps
    MB2-707 Dumps
    MB2-708 Dumps
    MB2-709 Dumps
    MB2-710 Dumps
    MB2-711 Dumps
    MB2-712 Dumps
    MB2-713 Dumps
    MB2-714 Dumps
    MB2-715 Dumps
    MB2-716 Dumps
    MB2-717 Dumps
    MB2-718 Dumps
    MB2-719 Dumps
    MB2-877 Dumps
    MB5-705 Dumps
    MB6-700 Dumps
    MB6-701 Dumps
    MB6-702 Dumps
    MB6-703 Dumps
    MB6-704 Dumps
    MB6-705 Dumps
    MB6-884 Dumps
    MB6-885 Dumps
    MB6-886 Dumps
    MB6-889 Dumps
    MB6-890 Dumps
    MB6-892 Dumps
    MB6-893 Dumps
    MB6-894 Dumps
    MB6-895 Dumps
    MB6-896 Dumps
    MB6-897 Dumps
    MB6-898 Dumps