Free 642-812 Exam Preparation Questions

Question:1

What information can be drawn from the output presented in the following exhibit? 

A. Interfaces FastEthernet3/1 and FastEthernet3/2 are candidates for becoming the STP root port, but neither can realize that role until BPDUs with a superior root bridge parameter are no longer received on at least one of the interfaces.

B. Devices connected to interfaces FastEthernet3/1 and FastEthernet3/2 are sending BPDUs with a superior root bridge parameter and no traffic is forwarded across the ports. Once the inaccurate BPDUs have been stopped, the interfaces will need to be administratively shut down, and brought back up, to resume normal operation.

C. Devices connected to interfaces FastEthernet3/1 and FastEthernet3/2 are sending BPDUs with a superior root bridge parameter and no traffic is forwarded across the ports. Once the inaccurate BPDUs have been stopped, the interfaces automatically recover and resume normal operation.

D. Devices connected to interfaces FastEthernet3/1 and FastEthernet3/2 are sending BPDUs with a superior root bridge parameter, but traffic is still forwarded across the ports. 

Answer: C

Question:2

What can be drawn about VLANs 200 and 202 from the following exhibit?

A. VLAN 200 carries traffic from promiscuous ports to isolated, community, and other promiscuous ports in the same VLAN. VLAN 202 carries traffic from isolated ports to a promiscuous port.

B. VLAN 202 carries traffic from promiscuous ports to isolated, community, and other promiscuous ports in the same VLAN. VLAN 200 carries traffic from isolated ports to a promiscuous port.

C. VLAN 202 carries traffic from promiscuous ports to isolated, community, and other promiscuous ports in the same VLAN. VLAN 200 carries traffic between community ports and to promiscuous ports.

D. VLAN 200 carries traffic from promiscuous ports to isolated, community, and other promiscuous ports in the same VLAN. VLAN 202 carries traffic between community ports and to promiscuous ports.

Answer: B Case Study# 1

Scenario:

Online Incorporated is an internet game provider.  The game service network had recently added an additional switch block with multiple VLANs configured.  Unfortunately, system administrators neglected to document the spanning-tree the topology during configuration.  For baseline purposes, you will be required to identify the spanning-tree topology for the switch block.  

Using the output of the show spanning-tree command on switch SW-C and the provided physical topology, answer the following questions: 

Topology: 

Case Study# 1 (Questions)

Question:3

Which Spanning Tree Protocol has been implemented on switch SW-B?

A. PVST+

B. PVRST

C. MSTP/EEE 802.1s

D. STP/EEE 802.1D

Answer: A

Question:4

Which port role has interface Fa0/2 of switch SW-A adopted for VLAN 47?

A. Altemate port

B. Backup port

C. Designated port 

D. Root port

E. Nondesignated port 

Answer: C

Question:5

Which port state is interface Fa0/2 of switch SW-B in for VLANs 1 and 160?

A. Blocking 

B. Disabled

C. Discarding 

D. Forwarding

E. Learning

F. Listening

Answer: A

Question:6

Which bridge ID belongs to switch SW-A?

A. 24623 000f 34f5.039b

B. 23768 000d bd03.029b

C. 32768 000d 65db 01dd

D. 32769 000d 65db 01dd

E. 32728 000d bd03 029b

F. 32815 000d bd03 029b

Answer: D Case Study# 2

 

Question:7

Which bridge ID belongs to switch SW-A?

A. 24588 000f 34f5 03ad

B. 32768 000d bd03 01f1

C. 32768 000d 65bd 0309

D. 32769 000d 65db 0309

E. 32871 000d bd03 01f1

F. 32780 000d bd03 01f1

Answer: A

Question:8

Which bridge ID belongs to switch SW-B?

A. 24588 000f 34f5 03ad

B. 32768 000d bd03 01f1

C. 32768 000d 65bd 0309

D. 32769 000d 65db 0309

E. 32871 000d bd03 01f1

F. 32780 000d bd03 01f1

Answer: A

Question:9

Which port role has interface Fa0/2 of switch SW-A adopted for VLAN 12?

A. Altemate port

B. Backup port

C. Designated port 

D. Root port

E. Nondesignated port 

Answer: C

Question:10

Which Spanning Tree Protocol has been implemented on switch SW-B?

A. PVST+

B. PVRST

C. MSTP/EEE 802.1s

D. STP/EEE 802.1D

Answer: A

Question:11

Which port state is interface Fa0/2 of switch SW-B in for VLANs 1 and 103?

A. Blocking 

B. Disabled

C. Discarding 

D. Forwarding

E. Learning

F. Listening

Answer: A

Question:12

Which bridge ID belongs to switch SW-A?

A. 24651 000f 34f5 0302

B. 32768 000d bd03 0394

C. 32768 000d 65bd 036a

D. 32769 000d 65db 036a

E. 32884 000d bd33 0394

F. 45 000d bd33 0394

Answer: D

Question:13

Which Spanning Tree Protocol has been implemented on switch SW-B?

A. VST+

B. PVRST

C. MSTP/EEE 802.1s

D. STP/EEE 802.1D

Answer: A

Question: 14

Which bridge ID belongs to switch SW-B?

A. 24653 000f 34f5 0302

B. 32768 000d bd03 0394

C. 32760 000d 65db 036a

D. 32769 000d 65bd 036a

E. 32884 000d bd03 0394

F. 32845 000d bd03 0394

Answer: A

Question: 15

Which port state is interface Fa0/2 of switch SW-B in for VLANs 1 and 116?

A. Blocking 

B. Disabled

C. Discarding 

D. Forwarding

E. Learning

F. Listening

Answer: A

Question: 16

Which port role has interface Fa0/2 of switch SW-A adopted for VLAN 77?

A. Altemate port

B. Backup port

C. Designated port  D. Root port

E. Nondesignated port 

Answer: C Case Study# 4

Question:1

Which Spanning Tree Protocol has been implemented on switch SW-B?

A. PVST+

B. PVRST

C. MSTP/EEE 802.1s

D. STP/EEE 802.1D

Answer: A

Question:2

Which port role has interface Fa0/2 of switch SW-A adopted for VLAN 54?

A. Altemate port

B. Backup port

C. Designated port 

D. Root port

E. Nondesignated port 

Answer: C

Question:3

Which port state is interface Fa0/2 of switch SW-B in for VLANs 1 and 187?

A. Blocking 

B. Disabled

C. Discarding 

D. Forwarding

E. Learning

F. Listening

Answer: A

Question:4

Which bridge ID belongs to switch SW-A?

A. 24630 000f  34f5 0343

B. 32768 000d bd03 0318

C. 32768 000d 65db 03b4

D. 32769 000d 65db 03b4

E. 32955 000d bd03 0318

F. 32822 000d bd03 0318

Answer: D

Question:5

Which bridge ID belongs to switch SW-B?

A. 24630 000f  34f5 0343

B. 32768 000d bd03 0318

C. 32768 000d 65db 03b4

D. 32769 000d 65db 03b4

E. 32955 000d bd03 0318

F. 32822 000d bd03 0318

Answer: A Case Study #5

Scenerio:

This item contains several questions that you must answer.You can view these questions by clicking on the corresponding button to the left.Changing questions can be accomplished by clicking the numbers to the left of each question.In order to complete the questions,you will need to refer to the topology. To gain access to the topology,click on the topology button at the bottom of the screen,When you have finished viewing the topology,you can return to your questions by clicking on the Questions button to the left. Each of the windows can be minimized by clicking on the [-].You can also reposition a window by draggring it by the bar. Ferris Plastics,Inc. is a medium sized company,with enterprise network(access,distribution and core) switches that provide LAN connectivity from user PCs to corporate servers.The distribution switches are configured to use HSRP to provide a high availability solution as follows:

-DSW1(Distribution Switch 1)is the primary device for VLAN 101,VLAN 102 and VLAN 105. -DSW2(Distribution Switch 2)is the primary device for VLAN 103 and VLAN 104.-A failure of GigabitEthernet1/0/1 on the primary device should block the primary device frombeing the active device,unless GigabitEthernet1/0/1 on the backup device has also failed.

Troubleshooting has identified several issues.Currently all interfaces are up.Use the running configurations and the available show commands to investigate and respond to the following question.

Topology: Case Study# 5 (Questions)

Question:6

DSW2 has not become the active device for VLAN 103`s HSRP group even though all interfaces are active.As related to VLAN 103`s HSRP group,what can be done to make the group function properly?

A. On DSW1,disable preempt.

B. On DSW1, decrease the priority value to a value less than 190 and greater 150.

C. On DSW2, increase the priority value to a value greater 241 and less than 249.

D. On DSW2, increase the decrement valus in the track command to a value greater than 10 and less than 50.

Answer: C

Question:7

If GigabitEthernet1/0/1 on DSW1 is shut down,what will be the current priority value of the VLAN 105`s HSRP group on router DSW1?

A. 95

B. 100

C. 150

D. 200

Answer: A

Question:8

What is the configured priority value of VLAN 105`s HSRP group on DSW2?

A. 50

B. 100

C. 150

D. 200

More topics about Cisco CCNA exam: Core Topics Covered on the CCNA Exam

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Best Cisco 800 Series Routers Help You Prepare for CCNA Exam & CISCO IOS

So many new or aspiring network administrators have asked me "what is the best router to use to learn the Cisco IOS?", or "what is the best router to use to practice for your CCNA exam?", or even, "what is the best router to use to connect your home or small business to the Internet?". While there are certainly less expensive options that might try to fulfill all three of these needs, in my mind at least, there is one clear answer. That is the Cisco 800 series routers. In this article, we will take a look at what this router line can do and how it can fulfill all of these needs.

What is the scoop on Cisco 800 series routers?

The Cisco 800 series router lineup is the least expensive and least performance router that Cisco puts their name on (in their current product line up, that is). While Cisco does own Linksys, I am not counting line system routers in this discussion, other than to say that they are lacking the Cisco IOS and all the features that the IOS brings.

I am certainly not selling Cisco routers so the point of this article is to only inform you about a product that just might fit your needs perfectly, as it did in my case. With that, let's learn more about this Cisco 800 series product line...

Here is what you need to know: 

The 800 series routers run the Cisco IOS and have most of the latest and greatest features.
The 800 series comes in at least 13 different models with varying versions of the IOS on each so take some time looking at the Cisco 800 series model comparison chart before you make up your mind which one to buy.

There are 800 series routers that connect to all different types of WAN connections - Ethernet (such as to a cable model), ISDN, Serial (such as to a T1 circuit), and G.HDSL/ADSL directly.

On the LAN side, the 800 series routers support 802.11 b/g wireless and your Ethernet LAN.

Yes, the 800 series routers have a GUI interface (called the SDM, discussed below) but, candidly, if all you are going to configure the router with is the GUI interface then don't waste your money - buy a Linksys instead. The real power of the 800 series router is the Cisco IOS CLI.

When it comes to security, Cisco 800 series routers support IPSEC VPN tunnels, VPN remote access, SSL VPN, Stateful firewall, and basic IPS (but make sure you get the right version of the IOS to go on your router - the IOS Advanced Security Image).

The street price for a Cisco 800 series routers ranges in price from about $250 to close to $1000. However, you can find these for less by shopping around on the Internet or even by buying one used on Ebay. As these are Cisco's lower end routers, there are a lot of companies that sell them and a lot of competition on pricing.

So, all in all, the Cisco 800 series router packs a powerful punch.

 

What is the best router to use to practice for your CCNA exam?

Frequently, I help candidates who are preparing for the Cisco CCNA exam and hope to move on to the CCNP exams at some point. They need to get at least one router to practice their IOS configurations - both for the hands-on portion of the CCNA exam and just to become competent navigating the Cisco IOS.

While you could buy a used 2500 or 2600 series router from Ebay for less (or much less, in the case of the 2500 series), I have been recommending the 800 series primarily because the 800 series can run the latest and greatest version of the IOS code. To run a version of the IOS that is even remotely current on a 2600, you will need to upgrade it to the maximum amount of Flash and RAM. 

To do this, you will spend at least $100-$200 on top of what you already paid for the 2600. In the case of the 2500, the latest version of the IOS that any 2500 series router can run is 12.3.x and even then it is only the IP PLUS IOS. To run the IP PLUS with IPSEC/VPN and FIREWALL, you have to go down to IOS version 12.2.

The CCNA exam really isn't that demanding when it comes to what the router needs but if you are going to buy a router to prep for the test, why not buy a router that you could actually use and has all the current features instead of one that.

 

What is the best router to use to learn the Cisco IOS? 

To me, the answer to this is the same as above. If you want to learn the Cisco IOS are you going to choose a simulator or a router that can't run the latest IOS or the latest features? No, you want to use a router that has the latest and greatest IOS and, most likely, get it at the lowest cost possible.

What is the best router to use to connect your home or small business to the Internet?

While the Cisco 800 series are more complex to configure when compared to a Linksys home/small business router, there is a reason for that. The reason is the number of higher-end features that are offered. Still, the 800 series does offer a decent graphical interface called SDM (deceivingly named, security device manager). 


In summary, the point of this article is to educate you on the best router to learn the Cisco IOS and use on small productions networks like your home or small office. The Cisco 800 series are the least expensive Cisco routers that run the full Cisco IOS. They also pack a ton of wireless, routing, and security features into a small package. While Cisco doesn't need my help to sell routers, I am recommending the 800 series Cisco router to those of you out there where it makes a good fit.