In fact, youd better take a quiz ahead of buying each of our Cisco products. This specific step aims in order to analyze your strong and weak places and you will pay more attention towards the weak points inside later review. Our Cisco 200-105 exam questions as well as answers are provided to you inside two types. One can be Pdf form, and the other can be test motor software. You can download them for free after obtain. Start proper now! And youll be around the road in order to Cisco 200-105 earlier.


♥♥ 2021 NEW RECOMMEND ♥♥

Free VCE & PDF File for Cisco 200-105 Real Exam (Full Version!)

★ Pass on Your First TRY ★ 100% Money Back Guarantee ★ Realistic Practice Exam Questions

Free Instant Download NEW 200-105 Exam Dumps (PDF & VCE):
Available on: http://www.surepassexam.com/200-105-exam-dumps.html

2021 Apr 200-105 book

Q51. - (Topic 1) 

Refer to the exhibit. 

Each of these four switches has been configured with a hostname, as well as being configured to run RSTP. No other configuration changes have been made. Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three.) 

A. SwitchA, Fa0/2, designated 

B. SwitchA, Fa0/1, root 

C. SwitchB, Gi0/2, root 

D. SwitchB, Gi0/1, designated 

E. SwitchC, Fa0/2, root 

F. SwitchD, Gi0/2, root 

Answer: A,B,F 

Explanation: 

The question says "no other configuration changes have been made" so we can 

understand these switches have the same bridge priority. SwitchC has lowest MAC 

address so, it will become root bridge and 2 of its ports (Fa0/1 & Fa0/2) will be designated 

ports (DP). Because SwitchC is the root bridge the 2 ports nearest SwitchC on SwitchA 

(Fa0/1) and SwitchD (Gi0/2) will be root ports (RP) -> B and F are correct. 

SwitchB must have a root port so which port will it choose? To answer this question we 

need to know about STP cost and port cost. 

In general, "cost" is calculated based on bandwidth of the link. The higher the bandwidth on 

a link, the lower the value of its cost. Below are the cost values you should memorize: 

Link speed Cost SwitchB will choose the interface with lower cost to the root bridge as the root port so we must calculate the cost on interface Gi0/1 & Gi0/2 of SwitchB to the root bridge. This can be calculated from the "cost to the root bridge" of each switch because a switch always advertises its cost to the root bridge in its BPDU. The receiving switch will add its local port cost value to the cost in the BPDU. SwitchC advertises its cost to the root bridge with a value of 0. Switch D adds 4 (the cost value of 1Gbps link) and advertises this value (4) to SwitchB. SwitchB adds another 4 and learns that it can reach SwitchC via Gi0/1 port with a total cost of 8. The same process happens for SwitchA and SwitchB learns that it can reach SwitchC via Gi0/2 with a total cost of 23 -> Switch B chooses Gi0/1 as its root port. Now our last task is to identify the port roles of the ports between SwitchA & SwitchB. It is rather easy as the MAC address of SwitchA is lower than that of SwitchB so Fa0/2 of SwitchA will be designated port while Gi0/2 of SwitchB will be alternative port. 


Q52. - (Topic 3) 

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

A. All TCP traffic is marked discard eligible. 

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

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

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

Answer:

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. 


Q53. - (Topic 2) 

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

A. show ip ospf link-state 

B. show ip ospf lsa database 

C. show ip ospf neighbors 

D. show ip ospf database 

Answer:

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) 


Q54. - (Topic 3) 

The output of the show frame-relay pvc command shows "PVC STATUS = INACTIVE". What does this mean? 

A. The PVC is configured correctly and is operating normally, but no data packets have been detected for more than five minutes. 

B. The PVC is configured correctly, is operating normally, and is no longer actively seeking the address of the remote router. 

C. The PVC is configured correctly, is operating normally, and is waiting for interesting traffic to trigger a call to the remote router. 

D. The PVC is configured correctly on the local switch, but there is a problem on the remote end of the PVC. 

E. The PVC is not configured on the local switch. 

Answer:

Explanation: The PVC STATUS displays the status of the PVC. The DCE device creates and sends the report to the DTE devices. There are 4 statuses: ACTIVE: the PVC is operational and can transmit dataINACTIVE: the connection from the local router to the switch is working, but the connection to the remote router is not availableDELETED: the PVC is not present and no LMI information is being received from the Frame Relay switch STATIC: the Local Management Interface (LMI) mechanism on the interface is disabled (by using the “no keepalive” command). This status is rarely seen. 


Q55. - (Topic 1) 

At which layer of the OSI model is RSTP used to prevent loops? 

A. physical 

B. data link 

C. network 

D. transport 

Answer:

Explanation: RSTP and STP operate on switches and are based on the exchange of Bridge Protocol Data Units (BPDUs) between switches. One of the most important fields in BPDUs is the Bridge Priority in which the MAC address is used to elect the Root Bridge , RSTP operates at Layer 2. http://www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cf a.shtml 


Renovate 200-105 free download:

Q56. - (Topic 2) 

Refer to Exhibit: 

The internetwork infrastructure of company XYZ consists of a single OSPF area as shown in the graphic. There is concern that a lack of router resources is impeding internetwork performance. As part of examining the router resources, the OSPF DRs need to be known. All the router OSPF priorities are at the default and the router IDs are shown with each router. Which routers are likely to have been elected as DR? (Choose two.) 

A. Corp-1 

B. Corp-2 

C. Corp-3 

D. Corp-4 

E. Branch-1 

F. Branch-2 

Answer: D,F 

Explanation: There are 2 segments on the topology above which are separated by Corp-3 router. Each segment will have a DR so we have 2 DRs. 

To select which router will become DR they will compare their router-IDs. The router with highest (best) router-ID will become DR. The router-ID is chosen in the order below: 

The highest IP address assigned to a loopback (logical) interface. 

If a loopback interface is not defined, the highest IP address of all active router’s physical interfaces will be chosen. 

In this question, the IP addresses of loopback interfaces are not mentioned so we will consider IP addresses of all active router’s physical interfaces. Router Corp-4 (10.1.40.40) 

& Branch-2 (10.2.20.20) have highest “active” IP addresses so they will become DRs. 


Q57. - (Topic 3) 

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 

Answer:

Explanation: 

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). 


Q58. - (Topic 2) 

What are two benefits of using a single OSPF area network design? (Choose two.) 

A. It is less CPU intensive for routers in the single area. 

B. It reduces the types of LSAs that are generated. 

C. It removes the need for virtual links. 

D. It increases LSA response times. 

E. It reduces the number of required OSPF neighbor adjacencies. 

Answer: B,C 

Explanation: 

OSPF uses a LSDB (link state database) and fills this with LSAs (link state advertisement). The link types are as follows: 

LSA Type 1:. Router LSA  

LSA Type 2:.. . . . . . . .  Network LSA  

LSA Type 3:. Summary LSA  

LSA Type 4:. Summary ASBR LSA  

LSA Type 5:. Autonomous system external LSA  

LSA Type 6:. Multicast OSPF LSA  

LSA Type 7:. Not-so-stubby area LSA  

LSA Type 8:. External attribute LSA for BGP  

If all routers are in the same area, then many of these LSA types (Summary ASBR LSA, external LSA, etc) will not be used and will not be generated by any router. 

All areas in an Open Shortest Path First (OSPF) autonomous system must be physically connected to the backbone area (Area 0). In some cases, where this is not possible, you can use a virtual link to connect to the backbone through a non-backbone area. You can also use virtual links to connect two parts of a partitioned backbone through a non-backbone area. The area through which you configure the virtual link, known as a transit area, must have full routing information. The transit area cannot be a stub area. Virtual links are not ideal and should really only be used for temporary network solutions or migrations. However, if all locations are in a single OSPF area this is not needed. 


Q59. - (Topic 3) 

Which two options are valid WAN connectivity methods? (Choose two.) 

A. PPP 

B. WAP 

C. DSL 

D. L2TPv3 

E. Ethernet 

Answer: A,C 

Explanation: 

On each WAN connection, data is encapsulated into frames before itcrosses the WAN link. The following are typical WAN protocols:1. High-level Data Link Control (HDLC): The Cisco default encapsulation type onpoint-to-point connections, dedicated links, and circuit-switches connections.2. PPP: Provides router-to-router and host-to-network connections over synchronous andasynchronous circuits. PPP was designed to work with several network layer protocols,including IP.3. Frame-relay: A successor to X.25. This protocol is an industry-standard, switchesdata-link layer protocol that handles multiple virtual circuits 

http://en.wikipedia.org/wiki/Wide_area_network 


Q60. - (Topic 3) 

Which command is used to enable CHAP authentication, with PAP as the fallback method, on a serial interface? 

A. Router(config-if)# ppp authentication chap fallback ppp 

B. Router(config-if)# ppp authentication chap pap 

C. Router(config-if)# authentication ppp chap fallback ppp 

D. Router(config-if)# authentication ppp chap pap 

Answer:

Explanation: 

The command “ppp authentication chap pap” command indicates the CHAP authentication is used first. If it fails or is rejected by other side then uses PAP instead. If you want to use PAP first (then CHAP) you can use the “ppp authentication pap chap” command 

Reference: http://www.cisco.com/en/US/docs/ios/12_2/security/configuration/guide/scfathen.html