[Breathing] 200-105 Cisco practice 31-40 (Mar 2017)

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2017 Mar 200-105 practice

Q31. - (Topic 3) 

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.) 

A. 192.168.151.4 represents the IP address of the remote router 

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

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

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

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

F. 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 


Q32. - (Topic 2) 

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

A. exstart state > loading state > exchange state > full state 

B. exstart state > exchange state > loading state > full state 

C. exstart state > full state > loading state > exchange state 

D. loading state > exchange state > full state > exstart state 

Answer:

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 


Q33. - (Topic 2) 

Refer to the exhibit. 

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

A. The LAN interfaces are configured on different subnets. 

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

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

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

E. Interface FastEthernet 0/0 is administratively deactivated. 

Answer:

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's. For routing and inter-vlan we need to configure a trunk port. So B will be the correct answer. 


Q34. - (Topic 3) 

In the Frame Relay network, 

which IP addresses would be assigned to the interfaces with point-to-point PVCs? 

A. DLCI 16 192.168.10.1/24 DLCI 17 192.168.10.1/24 DLCI 99 192.168.10.2/24 DLCI 28 192.168.10.3/24 

B. DLCI 16 192.168.10.1 /24 DLCI 17 192.168.11.1/24 DLCI 99 192.168.12.1/24 DLCI 28 192.168.13.1/24 

C. DLCI 16 192.168.10.1/24 DLCI 17 192.168.11.1/24 DLCI 99 192.168.10.2/24 DLCI 28 192.168.11.2/24 

D. DLCI 16 192.168.10.1/24 DLCI 17 192.168.10.2/24 DLCI 99 192.168.10.3/24 DLCI 28 192.168.10.4/24 

Answer:

Explanation: 

DLCI 16 and DLCI 19 need to act like a point-to-point link and will therefore need to be on the same network as will DLCI 17 and DLCI 28. With this information we can see that option "B" is the only option that has the corresponding DLCI's on the same network based on the ip addresses and subnetmask. Option "D" is incorrect because, this would put the same network on both interfaces of the R2 router. Option "A" is similar. 


Q35. - (Topic 1) 

What are two characteristics of a switch that is configured as a VTP client? (Choose two.) 

A. If a switch that is configured to operate in client mode cannot access a VTP server, then the switch reverts to transparent mode. 

B. On switches that are configured to operate in client mode, VLANs can be created, deleted, or renamed locally. 

C. The local VLAN configuration is updated only when an update that has a higher configuration revision number is received. 

D. VTP advertisements are not forwarded to neighboring switches that are configured in VTP transparent mode. 

E. VTP client is the default VTP mode. 

F. When switches in VTP client mode are rebooted, they send a VTP advertisement request to the VTP servers. 

Answer: C,F 

Explanation: 

VLAN Trunking Protocol (VTP) http://archive.networknewz.com/2004/0317.html 

VTP Modes Server Mode Once VTP is configured on a Cisco switch, the default mode used is Server Mode. In any given VTP management domain, at least one switch must be in Server Mode. When in Server Mode, a switch can be used to add, delete, and modify VLANs, and this information will be passed to all other switches in the VTP management domain. Client Mode When a switch is configured to use VTP Client Mode, it is simply the recipient of any VLANs added, deleted, or modified by a switch in Server Mode within the same management domain. A switch in VTP client mode cannot make any changes to VLAN information. Transparent Mode A switch in VTP Transparent Mode will pass VTP updates received by switches in Server Mode to other switches in the VTP management domain, but will not actually process the contents of these messages. When individual VLANs are added, deleted, or modified on a switch running in transparent mode, the changes are local to that particular switch only, and are not passed to other switches in the VTP management domain. 


Rebirth 200-105 exam answers:

Q36. - (Topic 2) 

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

A. Configuration complexity decreases as network size increases. 

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

C. Route summarization is computed automatically by the router. 

D. Routing tables adapt automatically to topology changes. 

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

F. Routing updates are automatically sent to neighbors. 

G. 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's hard not to come away with the impression that dynamic routing is always better than static routing. It'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 "automation" 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=24090&seqNum=6 http://www.ciscopress.com/articles/article.asp?p=24090 


Q37. - (Topic 2) 

Refer to the exhibit. 

Which three EIGRP routes will be present in the router R4's routing table? (Choose three.) 

A. 172.16.1.0/24 

B. 10.1.10.0/30 

C. 10.0.0.0/8 

D. 10.1.11.0/30 

E. 172.16.0.0/16 

F. 192.168.1.0/24 

Answer: C,E,F 

Explanation: 

EIGRP performs an auto-summarization each time it crosses a border between two different major networks, so when R2 advertises the routes to R4 it will advertise only the summarized routes of 10.0.0.0/8 and 172.16.0.0/16, along with the 192.168.1.0/24 route coming from R3. 


Q38. - (Topic 3) 

Which two statistics appear in show frame-relay map output? (Choose two.) 

A. the number of BECN packets that are received by the router 

B. the value of the local DLCI 

C. the number of FECN packets that are received by the router 

D. the status of the PVC that is configured on the router 

E. the IP address of the local router 

Answer: B,D 

Explanation: 

Frame Relay Commands (map-class frame-relay through threshold ecn) 

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

Examples 

The following is sample output from the show frame-relay map command: 

Router#show frame-relay map Serial 1 (administratively down): ip 10.108.177.177 

dlci 177 (0xB1,0x2C10), static, broadcast, 

CISCO 

TCP/IP Header Compression (inherited), passive (inherited) 


Q39. - (Topic 2) 

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 

Answer:

Explanation: 

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. 


Q40. - (Topic 1) 

Refer to the exhibit. 

A technician has configured the FastEthernet 0/1 interface on Sw11 as an access link in VLAN 1. Based on the output from the show vlan brief command issued on Sw12, what will be the result of making this change on Sw11? 

A. Only the hosts in VLAN 1 on the two switches will be able to communicate with each other. 

B. The hosts in all VLANs on the two switches will be able to communicate with each other. 

C. Only the hosts in VLAN 10 and VLAN 15 on the two switches will be able to communicate with each other. 

D. Hosts will not be able to communicate between the two switches. 

Answer:

Explanation: 

VLANs are local to each switch's database, and VLAN information is not passed between switches without implementing VLAN Trunk Protocol (VTP). Trunks carry traffic from all VLANs to and from the switch by default but, can be configured to carry only specified VLAN traffic. Trunk links are required to pass VLAN information between switches. So Sw11 port should be trunk not access port. Additionally, there are no ports assigned to VLAN 1.