CCNA – Basic Questions
Here you will find answers to CCNA – Basic Questions
Question 1
For which type of connection should a straight-through cable be used?
A. switch to switch
B. switch to hub
C. switch to router
D. hub to hub
E. router to PC
Answer: C
Explanation
To specify when we use crossover cable or straight-through cable, we should remember:
Group 1: Router, Host, Server
Group 2: Hub, Switch
One device in group 1 + One device in group 2: use straight-through cable
Two devices in the same group: use crossover cable
In this case we can use straight-through cable to connect a switch to a router -> C is correct.
Question 2
Which type of cable is used to connect the COM port of a host to the COM port of a router or switch?
A. crossover
B. straight-through
C. rolled
D. shielded twisted-pair
Answer: C
Explanation
The correct question should be “Which type of cable is used to connect the COM port of a host to the CONSOLE port of a router or switch?” and the correct answer is rollover cable. But we can’t plug this rollover cable directly into our host because it will not work. We often use a RJ45 to DB9 Female cable converter as shown below:
Question 3
What is the first 24 bits in a MAC address called?
A. NIC
B. BIA
C. OUI
D. VAI
Answer: C
Explanation
Organizational Unique Identifier (OUI) is the first 24 bits of a MAC address for a network device, which indicates the specific vendor for that device as assigned by the Institute of Electrical and Electronics Engineers, Incorporated (IEEE). This identifier uniquely identifies a vendor, manufacturer, or an organization.
Question 4
In an Ethernet network, under what two scenarios can devices transmit? (Choose two)
A. when they receive a special token
B. when there is a carrier
C. when they detect no other devices are sending
D. when the medium is idle
E. when the server grants access
Answer: C D
Explanation
Ethernet network is a shared environment so all devices have the right to access to the medium. If more than one device transmits simultaneously, the signals collide and can not reach the destination.
If a device detects another device is sending, it will wait for a specified amount of time before attempting to transmit.
When there is no traffic detected, a device will transmit its message. While this transmission is occurring, the device continues to listen for traffic or collisions on the LAN. After the message is sent, the device returns to its default listening mode.
So we can see C and D are the correct answers. But in fact “answer C – when they detect no other devices are sending” and “when the medium is idle” are nearly the same.
Question 5
Which two benefits are provided by using a hierarchical addressing network addressing scheme? (Choose two)
A. reduces routing table entries
B. auto-negotiation of media rates
C. efficient utilization of MAC addresses
D. dedicated communications between devices
E. ease of management and troubleshooting
Answer: A E
Question 6
When a host transmits data across a network to another host, which process does the data go through?
A. standardization
B. conversion
C. encapsulation
D. synchronization
Answer: C
Explanation
To transmit to another host, a host must go through the TCP/IP model (very similar to the OSI model). At each layer, the message is encapsulated with that layer’s header (and trailer if it has). This process is called encapsulation.
Question 7
Which two Ethernet fiber-optic modes support distances of greater than 550 meters?
A. 1000BASE-CX
B. 100BASE-FX
C. 1000BASE-LX
D. 1000BASE-SX
E. 1000BASE-ZX
Answer: C E
Explanation
Below lists the cabling standards mentioned above
| Standard | Cabling | Maximum length |
| 1000BASE-CX | Twinaxial cabling | 25 meters |
| 100BASE-FX | Two strands, multimode | 400 m |
| 1000BASE-LX | Long-wavelength laser, MM orSM fiber | 10 km (SM)3 km (MM) |
| 1000BASE-SX | Short-wavelength laser, MM fiber | 220 m with 62.5-micron fiber; 550 mwith 50-micron fiber |
| 1000BASE-ZX | Extended wavelength, SM fiber | 100 km |
Note:
+ MM: Multimode
+ SM: Single-mode
(Reference: The official self-study test preparation guide to the Cisco CCNA INTRO exam 640-821)
Question 8
Refer to the exhibit. What type of connection would be supported by the cable diagram shown?
| Pin | Color | Function | Pin | Color | Function |
| 1 | White/Green | TX+ | 1 | White/Green | TX+ |
| 2 | Green | TX- | 2 | Green | TX- |
| 3 | White/Orange | RX+ | 3 | White/Orange | RX+ |
| 6 | Orange | RX- | 6 | Orange | RX- |
A. PC to router
B. PC to switch
C. server to router
D. router to router
Answer: B
Explanation
From the “Pin” and “Color” in the exhibit we know that this is a straight-through cable so it can be used to connect PC to switch.
Question 9
Refer to the exhibit. What type of connection would be supported by the cable diagram shown?
| Pin | Color | Function | Pin | Color | Function |
| 1 | White/Green | TX+ | 3 | White/Green | RX+ |
| 2 | Green | TX- | 6 | Green | RX- |
| 3 | White/Orange | RX+ | 1 | White/Orange | TX+ |
| 6 | Orange | RX- | 2 | Orange | TX- |
A. PC to router
B. PC to switch
C. server to switch
D. switch to router
Answer: A
Explanation
This is a crossover cable so it can be used to connect PC and router.
Question 10
Which two topologies are using the correct type of twisted-pair cables? (Choose two)
A. 
B. 
C. 
D. 
E. 
Answer: D E
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VTP simulator had two bugs in my case, those were the only two questions I couldnt get right.
1. In the vtp sim there is a question that asks you which ports will a frame go out with source address X (which is present in mac-address-table) and destination address that is not present in the table. Answer to this is the frame will be forwarded to all ports on the originating vlan and trunk ports. The question required to choose three but I found 4 out of 6 correct.
2. There is another question about vtp, that from which switch did this switch get vlan infromation. Answer to this is found by checking the ip address at the bottom of output of “show vtp status” command and then use cdp neighbour detail to get switch name from corresponding ip address. In my case there was no ip address shown in the bottom of show vtp status output. So I chose the option of “sw-ac3 itself”. This answer was wrong according to exam.
Good news is that for multiple options question you get score for the portion that is right. I read this statement in the instructions before exam.
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Hello Guys I hope you will be fine there. I have CCNA (640-802) Vouchers on
special discount of 58% for World wide, with six months expiry date till you
purchase. Each voucher cost 60USD.
Details Required For CCNA Voucher For Discount Processing:
1-Full Name. 1st Name & Last Name (as you want to appear on certificate & documents)
2-Country.
3-City.
4-State.
5-Pin Code (or Area Code)
6-Residential Address (or where you can collect your Certificate or further correspondence
can be received)
Add me on Skype through this information which is written below:
Skype Name: rockon660
you can also email me at this email address which is written below:
madeelqaiser@gmail.com
If you have any Questions feel free to contact me.
I am also dealing the vocuhers of Microsoft.
Thanks,
Best regards,
Adeel
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Hello Guys I hope you will be fine there. I have CCNA (640-802) Vouchers on
special discount of 58% for World wide, with six months expiry date till you
purchase. Each voucher cost 60USD
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I am presently attending Cisco Network Academy at Samuel Gompers Vocational and Technical High School, Bronx, New York. Studying CCNA1 Network Fundamentals (five month, just finished, three evenings a week) and continued with CCNA2 Routing Protocols and Concepts (same schedule) still attending. But I am not
(continued from page 1)
But I am not doing too well. Can someone
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Can someone Help me with Study material for passing ICND1 (or CCENT1).
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Hi, I have passed CCNA week ago, with score 1000/1000 :)
Exam was easy, all questions known, labs were ACL2, EIGRP and VTP.
For preparing I’ve used Cisco CCNA Exploration curriculums, Odom’s books, 9tut, Spike and Acme dumps.
My advise is first go through all subjects in Odom’s books or
exploration curriculum, try to pick up all concepts, then go through 9tut questions and labs, if you have any doubts go back to book, and in the end practise some dump to gain in speed.
There were sume bugs in VTP sim, try to give it same time to stabilize, and then try again.
Thanks a lot to 9tut and examcollection!!!
And very best to all of you :)
p.s. If anyone have questions I’ll try to help so ask ;)
Passed today 947 all sims n dumps from 9tute and examcollection. all these are 100% valid. For the guys who are still having doubts my advise is dont worry as long as you have done 9tute labs and other MCQ’s. just go and do it. in the middle of the exam my PC started to shutdown which was really weird i was disturbed and however the institute managed to arrange another PC and reset the exam from UK. Anyway bottom line is dont get distracted take a deep breath and go through it. read every question carefully as the arrangements are changed in the real exam and the ip address as well. best of luck to all of you who are taking the exam and thanks to the all mighty god above all of us. and 9tute n examcollection. CCNP here i come !!!!!!!!!!!!!!!!!!!!!
passed this time reappeared after failing on 1stapril with 656 marks coz couldnot finish it,this time scored 894. sims asked were vtp,eigrp and accesslist from 9tut.com
q4 was in 4/12 exam.
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