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
thanks a lot to 9tut…… i gave the exam CCNA , i got passed…. thank god
@tut
which command will show the MAC addresses of stations connected to swith ports??
A. show ma-address
B. show arp
C. show table
D. show swithport
in dump A , and another dump take B
SO what is the correct one?
in NAT
what does ” prefix-length 19″ mean ????
@9tut
your ISP give you an IP address 223.5.14.6/29 and ur default gateway is 223.5.14.7 but ping does not work why??
A. the default gateway is not an address on this subnet
B. the default gateway is the broadcast for this subnet
C. the IP address is the broadcast for this subnet
D. the IP address is an invalid class D multicast address
plz answer me i have an exam tomorrow
@9tut
identify the four valid IPV6 addresses
A. A
B. ::192:168:0:1
C. 2000::
D. 2001:3452:4952:2837::
E. 2002:c0a8:101::42
plz answer me
F. 2003:dead:4dad:23:46:bb:101
@islam:
+ 223.5.14.7 is the broadcast address of this subnet -> ping will not work.
+ For IPv6 question, please read Question 7 of this link for the answer & explanation: http://www.9tut.com/ccna-ipv6
I have completed the CCNA -640-802 exam with 920 marks.
same dump as in 9tut..only little extra questions from outside..apart from that..same dump ..9tut dump is valid…same simulations..
first time been this site, excellent work
God bless
@9tut
thank you
i passed my exam with 947
thank you again and all in 9tut
A sincere thanks to 9tut. Passed my exams with 933 score.
48 questions including 3 sims, 2hr exams
Got 3 sim: EIGRP, ACL and VTP ( please dont forget to copy running config to startup config, after configuration or you may lose marks!)
topology was the same. But ip addressing and question were slightly different.
Thanks once again, and best of luck to all those studying for the exams.
hi islam can u tell me how many questions came from 9tut and dumps????
ILOVEYOU 9tut
Hi, please send me the dumps, I am taking the exam this week. andrewbaxter1104@yahoo.com
Alhamd_u_lillah i did my CCNA yesterday with marks 947/1000. the paper is easy but u need to study wel and must consultat on sims.one other thing All question and sims i got in paper same is here in 9tut. this site is very very gud for CCNA thanks my Allah,parants,friends and 9tut..
Got 45 qtion and got 3 labs eigrp 221 lab like here. vtp and acl2.
Wish u All the best please pray 4 me i am going to get admission in CCNP
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Thank you
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Hi,
Is there any changes in the EIGRP lab simulation ?
Anyone who took the exam recently, can you please let me out in this regard ?
Hi Could someone send me CCNA dumps to
p.singh9@live.com.au
heaps thanks
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Hi
In Hungary.
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@9islan,
its C for your question below.
https://learningnetwork.cisco.com/thread/30986
given that hostA and hostB are in different networks. when hostA is trying to communicate with HostB, which step will hostA take first?
A. send a TCP SYN and wait the SYN ACK with the IP address of Host B
B. Dope the data
C. create an ARP request to get a MAC address for hostB
D. send the data frames to the default gateway
in dump C
i think it is D
explain it to me plz
@sreejith
It is C. You need to know the destination mac address before sending it to DG
@sree
pc will send out a arp to get desti. mac because it need to encapsulate it into the frame before sending it out.
Hi Guys
Can someone please send me the latest DUMPS for CCNA @ ma mail ID ankit.tits@gmail.com
Pls am planning on taking my ccna certification exam this month please someone should send me the recent dumbs of 9tut on it to allisonsegun@ymail.com pleaseeeeee
Q:- Data transfer between source and destination is slow.The quality of service is requested by transport layer in OSI model is not being maintained .To fix the issue at which layer processor shold begin?
1.Presentation
2. Session
3. Transport
4. Network
5.Data link
6 .Physical
please help me what the correct answer
@mahmoud
“qos” => network layer
passed my exam 933 marks..
passed my exam with 933 marks thanks 9tut
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Plz send me latest Dump!
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thanks!
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thank you!!!
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this email address
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I have my CCNA in 2 weeks.
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hi shreejit,
its D …
hi..where can i download the latest dump? going to take the exam in 2 weeks..
thanks in advance
Hi all,
I passed my ccna exam with 960/1000. thank u 9tut. This site has all the things u need about ccna. Apart from this i also gone through “Cisco.Acme.640-802.v2012-01-21.by.Jericho.576q.vce”. I also got the same VTP, ACL and EIGRP as my sims.
All the best guys!!!
Cisco.Acme.640-802.v2012-01-21.by.Jericho.576q.vce
Cisco.Acme.640-802.v2011-07-09.by.Collisio.486q.vce
i got almost all questions from these two materials.